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-rw-r--r--tests/ahci-test.c6
-rw-r--r--tests/check-qdict.c100
-rw-r--r--tests/check-qjson.c84
-rw-r--r--tests/check-qlist.c8
-rw-r--r--tests/check-qlit.c10
-rw-r--r--tests/check-qnull.c10
-rw-r--r--tests/check-qnum.c28
-rw-r--r--tests/check-qobject.c2
-rw-r--r--tests/check-qstring.c10
-rw-r--r--tests/cpu-plug-test.c4
-rw-r--r--tests/device-introspect-test.c24
-rw-r--r--tests/drive_del-test.c4
-rw-r--r--tests/libqos/libqos.c8
-rw-r--r--tests/libqos/pci-pc.c2
-rw-r--r--tests/libqtest.c24
-rw-r--r--tests/machine-none-test.c2
-rw-r--r--tests/migration-test.c26
-rw-r--r--tests/numa-test.c16
-rw-r--r--tests/pvpanic-test.c2
-rw-r--r--tests/q35-test.c2
-rw-r--r--tests/qmp-test.c38
-rw-r--r--tests/qom-test.c8
-rw-r--r--tests/tco-test.c12
-rw-r--r--tests/test-char.c2
-rw-r--r--tests/test-keyval.c82
-rw-r--r--tests/test-netfilter.c26
-rw-r--r--tests/test-qemu-opts.c14
-rw-r--r--tests/test-qga.c76
-rw-r--r--tests/test-qmp-cmds.c24
-rw-r--r--tests/test-qmp-event.c2
-rw-r--r--tests/test-qobject-input-visitor.c10
-rw-r--r--tests/test-qobject-output-visitor.c18
-rw-r--r--tests/test-visitor-serialization.c6
-rw-r--r--tests/test-x86-cpuid-compat.c14
-rw-r--r--tests/tmp105-test.c4
-rw-r--r--tests/vhost-user-test.c6
-rw-r--r--tests/virtio-net-test.c6
-rw-r--r--tests/vmgenid-test.c2
-rw-r--r--tests/wdt_ib700-test.c14
39 files changed, 368 insertions, 368 deletions
diff --git a/tests/ahci-test.c b/tests/ahci-test.c
index fb3cd84d07..1a7b761304 100644
--- a/tests/ahci-test.c
+++ b/tests/ahci-test.c
@@ -1566,7 +1566,7 @@ static void atapi_wait_tray(bool open)
     } else {
         g_assert(!qdict_get_bool(data, "tray-open"));
     }
-    QDECREF(rsp);
+    qobject_unref(rsp);
 }
 
 static void test_atapi_tray(void)
@@ -1596,7 +1596,7 @@ static void test_atapi_tray(void)
                "'arguments': {'id': 'cd0'}}");
     atapi_wait_tray(true);
     rsp = qmp_receive();
-    QDECREF(rsp);
+    qobject_unref(rsp);
 
     qmp_discard_response("{'execute': 'blockdev-remove-medium', "
                          "'arguments': {'id': 'cd0'}}");
@@ -1623,7 +1623,7 @@ static void test_atapi_tray(void)
                "'arguments': {'id': 'cd0'}}");
     atapi_wait_tray(false);
     rsp = qmp_receive();
-    QDECREF(rsp);
+    qobject_unref(rsp);
 
     /* Now, to convince ATAPI we understand the media has changed... */
     ahci_atapi_test_ready(ahci, port, false, SENSE_NOT_READY);
diff --git a/tests/check-qdict.c b/tests/check-qdict.c
index 07bb8f4564..eba5d3528e 100644
--- a/tests/check-qdict.c
+++ b/tests/check-qdict.c
@@ -34,7 +34,7 @@ static void qdict_new_test(void)
     g_assert(qdict->base.refcnt == 1);
     g_assert(qobject_type(QOBJECT(qdict)) == QTYPE_QDICT);
 
-    QDECREF(qdict);
+    qobject_unref(qdict);
 }
 
 static void qdict_put_obj_test(void)
@@ -54,7 +54,7 @@ static void qdict_put_obj_test(void)
     qn = qobject_to(QNum, ent->value);
     g_assert_cmpint(qnum_get_int(qn), ==, num);
 
-    QDECREF(qdict);
+    qobject_unref(qdict);
 }
 
 static void qdict_destroy_simple_test(void)
@@ -65,7 +65,7 @@ static void qdict_destroy_simple_test(void)
     qdict_put_int(qdict, "num", 0);
     qdict_put_str(qdict, "str", "foo");
 
-    QDECREF(qdict);
+    qobject_unref(qdict);
 }
 
 static void qdict_get_test(void)
@@ -84,7 +84,7 @@ static void qdict_get_test(void)
     qn = qobject_to(QNum, obj);
     g_assert_cmpint(qnum_get_int(qn), ==, value);
 
-    QDECREF(tests_dict);
+    qobject_unref(tests_dict);
 }
 
 static void qdict_get_int_test(void)
@@ -99,7 +99,7 @@ static void qdict_get_int_test(void)
     ret = qdict_get_int(tests_dict, key);
     g_assert(ret == value);
 
-    QDECREF(tests_dict);
+    qobject_unref(tests_dict);
 }
 
 static void qdict_get_try_int_test(void)
@@ -121,7 +121,7 @@ static void qdict_get_try_int_test(void)
     ret = qdict_get_try_int(tests_dict, "string", -42);
     g_assert_cmpuint(ret, ==, -42);
 
-    QDECREF(tests_dict);
+    qobject_unref(tests_dict);
 }
 
 static void qdict_get_str_test(void)
@@ -137,7 +137,7 @@ static void qdict_get_str_test(void)
     g_assert(p != NULL);
     g_assert(strcmp(p, str) == 0);
 
-    QDECREF(tests_dict);
+    qobject_unref(tests_dict);
 }
 
 static void qdict_get_try_str_test(void)
@@ -153,7 +153,7 @@ static void qdict_get_try_str_test(void)
     g_assert(p != NULL);
     g_assert(strcmp(p, str) == 0);
 
-    QDECREF(tests_dict);
+    qobject_unref(tests_dict);
 }
 
 static void qdict_defaults_test(void)
@@ -174,8 +174,8 @@ static void qdict_defaults_test(void)
     qdict_copy_default(copy, dict, "bar");
     g_assert_cmpstr(qdict_get_str(copy, "bar"), ==, "xyz");
 
-    QDECREF(copy);
-    QDECREF(dict);
+    qobject_unref(copy);
+    qobject_unref(dict);
 }
 
 static void qdict_haskey_not_test(void)
@@ -183,7 +183,7 @@ static void qdict_haskey_not_test(void)
     QDict *tests_dict = qdict_new();
     g_assert(qdict_haskey(tests_dict, "test") == 0);
 
-    QDECREF(tests_dict);
+    qobject_unref(tests_dict);
 }
 
 static void qdict_haskey_test(void)
@@ -194,7 +194,7 @@ static void qdict_haskey_test(void)
     qdict_put_int(tests_dict, key, 0);
     g_assert(qdict_haskey(tests_dict, key) == 1);
 
-    QDECREF(tests_dict);
+    qobject_unref(tests_dict);
 }
 
 static void qdict_del_test(void)
@@ -210,7 +210,7 @@ static void qdict_del_test(void)
     g_assert(qdict_size(tests_dict) == 0);
     g_assert(qdict_haskey(tests_dict, key) == 0);
 
-    QDECREF(tests_dict);
+    qobject_unref(tests_dict);
 }
 
 static void qobject_to_qdict_test(void)
@@ -218,7 +218,7 @@ static void qobject_to_qdict_test(void)
     QDict *tests_dict = qdict_new();
     g_assert(qobject_to(QDict, QOBJECT(tests_dict)) == tests_dict);
 
-    QDECREF(tests_dict);
+    qobject_unref(tests_dict);
 }
 
 static void qdict_iterapi_test(void)
@@ -250,7 +250,7 @@ static void qdict_iterapi_test(void)
 
     g_assert(count == qdict_size(tests_dict));
 
-    QDECREF(tests_dict);
+    qobject_unref(tests_dict);
 }
 
 static void qdict_flatten_test(void)
@@ -325,7 +325,7 @@ static void qdict_flatten_test(void)
 
     g_assert(qdict_size(dict3) == 8);
 
-    QDECREF(dict3);
+    qobject_unref(dict3);
 }
 
 static void qdict_array_split_test(void)
@@ -390,31 +390,31 @@ static void qdict_array_split_test(void)
     g_assert(int1);
     g_assert(qlist_empty(test_list));
 
-    QDECREF(test_list);
+    qobject_unref(test_list);
 
     g_assert(qdict_get_int(dict1, "a") == 42);
     g_assert(qdict_get_int(dict1, "b") == 23);
 
     g_assert(qdict_size(dict1) == 2);
 
-    QDECREF(dict1);
+    qobject_unref(dict1);
 
     g_assert(qdict_get_int(dict2, "x") == 0);
 
     g_assert(qdict_size(dict2) == 1);
 
-    QDECREF(dict2);
+    qobject_unref(dict2);
 
     g_assert_cmpint(qnum_get_int(int1), ==, 66);
 
-    QDECREF(int1);
+    qobject_unref(int1);
 
     g_assert(qdict_get_int(test_dict, "4.y") == 1);
     g_assert(qdict_get_int(test_dict, "o.o") == 7);
 
     g_assert(qdict_size(test_dict) == 2);
 
-    QDECREF(test_dict);
+    qobject_unref(test_dict);
 
     /*
      * Test the split of
@@ -455,18 +455,18 @@ static void qdict_array_split_test(void)
     g_assert(int1);
     g_assert(qlist_empty(test_list));
 
-    QDECREF(test_list);
+    qobject_unref(test_list);
 
     g_assert_cmpint(qnum_get_int(int1), ==, 42);
 
-    QDECREF(int1);
+    qobject_unref(int1);
 
     g_assert(qdict_get_int(test_dict, "1") == 23);
     g_assert(qdict_get_int(test_dict, "1.x") == 84);
 
     g_assert(qdict_size(test_dict) == 2);
 
-    QDECREF(test_dict);
+    qobject_unref(test_dict);
 }
 
 static void qdict_array_entries_test(void)
@@ -493,7 +493,7 @@ static void qdict_array_entries_test(void)
     g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, 3);
     g_assert_cmpint(qdict_array_entries(dict, ""), ==, -EINVAL);
 
-    QDECREF(dict);
+    qobject_unref(dict);
 
     dict = qdict_new();
     qdict_put_int(dict, "1", 0);
@@ -509,7 +509,7 @@ static void qdict_array_entries_test(void)
     qdict_put_int(dict, "2.c", 0);
     g_assert_cmpint(qdict_array_entries(dict, ""), ==, 3);
 
-    QDECREF(dict);
+    qobject_unref(dict);
 }
 
 static void qdict_join_test(void)
@@ -587,8 +587,8 @@ static void qdict_join_test(void)
     }
     while (overwrite ^= true);
 
-    QDECREF(dict1);
-    QDECREF(dict2);
+    qobject_unref(dict1);
+    qobject_unref(dict2);
 }
 
 static void qdict_crumple_test_recursive(void)
@@ -634,21 +634,21 @@ static void qdict_crumple_test_recursive(void)
     g_assert_cmpint(qdict_size(rule), ==, 2);
     g_assert_cmpstr("fred", ==, qdict_get_str(rule, "match"));
     g_assert_cmpstr("allow", ==, qdict_get_str(rule, "policy"));
-    QDECREF(rule);
+    qobject_unref(rule);
 
     rule = qobject_to(QDict, qlist_pop(rules));
     g_assert(rule);
     g_assert_cmpint(qdict_size(rule), ==, 2);
     g_assert_cmpstr("bob", ==, qdict_get_str(rule, "match"));
     g_assert_cmpstr("deny", ==, qdict_get_str(rule, "policy"));
-    QDECREF(rule);
+    qobject_unref(rule);
 
     /* With recursive crumpling, we should see all names unescaped */
     g_assert_cmpstr("acl0", ==, qdict_get_str(vnc, "acl.name"));
     g_assert_cmpstr("acl0", ==, qdict_get_str(acl, "rule.name"));
 
-    QDECREF(src);
-    QDECREF(dst);
+    qobject_unref(src);
+    qobject_unref(dst);
 }
 
 static void qdict_crumple_test_empty(void)
@@ -661,8 +661,8 @@ static void qdict_crumple_test_empty(void)
 
     g_assert_cmpint(qdict_size(dst), ==, 0);
 
-    QDECREF(src);
-    QDECREF(dst);
+    qobject_unref(src);
+    qobject_unref(dst);
 }
 
 static int qdict_count_entries(QDict *dict)
@@ -704,7 +704,7 @@ static void qdict_rename_keys_test(void)
     g_assert(qobject_type(qdict_get(copy, "nothing")) == QTYPE_QNULL);
     g_assert_cmpint(qdict_count_entries(copy), ==, 5);
 
-    QDECREF(copy);
+    qobject_unref(copy);
 
     /* Simple rename of all entries */
     renames = (QDictRenames[]) {
@@ -731,7 +731,7 @@ static void qdict_rename_keys_test(void)
     g_assert(qobject_type(qdict_get(copy, "null")) == QTYPE_QNULL);
     g_assert_cmpint(qdict_count_entries(copy), ==, 5);
 
-    QDECREF(copy);
+    qobject_unref(copy);
 
     /* Renames are processed top to bottom */
     renames = (QDictRenames[]) {
@@ -754,7 +754,7 @@ static void qdict_rename_keys_test(void)
     g_assert(!qdict_haskey(copy, "tmp"));
     g_assert_cmpint(qdict_count_entries(copy), ==, 5);
 
-    QDECREF(copy);
+    qobject_unref(copy);
 
     /* Conflicting rename */
     renames = (QDictRenames[]) {
@@ -775,7 +775,7 @@ static void qdict_rename_keys_test(void)
     g_assert(qobject_type(qdict_get(copy, "nothing")) == QTYPE_QNULL);
     g_assert_cmpint(qdict_count_entries(copy), ==, 5);
 
-    QDECREF(copy);
+    qobject_unref(copy);
 
     /* Renames in an empty dict */
     renames = (QDictRenames[]) {
@@ -783,13 +783,13 @@ static void qdict_rename_keys_test(void)
         { NULL , NULL }
     };
 
-    QDECREF(dict);
+    qobject_unref(dict);
     dict = qdict_new();
 
     qdict_rename_keys(dict, renames, &error_abort);
     g_assert(qdict_first(dict) == NULL);
 
-    QDECREF(dict);
+    qobject_unref(dict);
 }
 
 static void qdict_crumple_test_bad_inputs(void)
@@ -806,7 +806,7 @@ static void qdict_crumple_test_bad_inputs(void)
     g_assert(error != NULL);
     error_free(error);
     error = NULL;
-    QDECREF(src);
+    qobject_unref(src);
 
     src = qdict_new();
     /* rule can't be both a list and a dict */
@@ -817,7 +817,7 @@ static void qdict_crumple_test_bad_inputs(void)
     g_assert(error != NULL);
     error_free(error);
     error = NULL;
-    QDECREF(src);
+    qobject_unref(src);
 
     src = qdict_new();
     /* The input should be flat, ie no dicts or lists */
@@ -828,7 +828,7 @@ static void qdict_crumple_test_bad_inputs(void)
     g_assert(error != NULL);
     error_free(error);
     error = NULL;
-    QDECREF(src);
+    qobject_unref(src);
 
     src = qdict_new();
     /* List indexes must not have gaps */
@@ -839,7 +839,7 @@ static void qdict_crumple_test_bad_inputs(void)
     g_assert(error != NULL);
     error_free(error);
     error = NULL;
-    QDECREF(src);
+    qobject_unref(src);
 
     src = qdict_new();
     /* List indexes must be in %zu format */
@@ -850,7 +850,7 @@ static void qdict_crumple_test_bad_inputs(void)
     g_assert(error != NULL);
     error_free(error);
     error = NULL;
-    QDECREF(src);
+    qobject_unref(src);
 }
 
 /*
@@ -871,7 +871,7 @@ static void qdict_put_exists_test(void)
 
     g_assert(qdict_size(tests_dict) == 1);
 
-    QDECREF(tests_dict);
+    qobject_unref(tests_dict);
 }
 
 static void qdict_get_not_exists_test(void)
@@ -879,7 +879,7 @@ static void qdict_get_not_exists_test(void)
     QDict *tests_dict = qdict_new();
     g_assert(qdict_get(tests_dict, "foo") == NULL);
 
-    QDECREF(tests_dict);
+    qobject_unref(tests_dict);
 }
 
 /*
@@ -951,7 +951,7 @@ static void qdict_stress_test(void)
 
         g_assert(strcmp(str1, str2) == 0);
 
-        QDECREF(value);
+        qobject_unref(value);
     }
 
     // Delete everything
@@ -962,14 +962,14 @@ static void qdict_stress_test(void)
             break;
 
         qdict_del(qdict, key);
-        QDECREF(value);
+        qobject_unref(value);
 
         g_assert(qdict_haskey(qdict, key) == 0);
     }
     fclose(test_file);
 
     g_assert(qdict_size(qdict) == 0);
-    QDECREF(qdict);
+    qobject_unref(qdict);
 }
 
 int main(int argc, char **argv)
diff --git a/tests/check-qjson.c b/tests/check-qjson.c
index 997f4d3d2c..da582df3e9 100644
--- a/tests/check-qjson.c
+++ b/tests/check-qjson.c
@@ -67,10 +67,10 @@ static void escaped_string(void)
         if (test_cases[i].skip == 0) {
             str = qobject_to_json(obj);
             g_assert_cmpstr(qstring_get_str(str), ==, test_cases[i].encoded);
-            qobject_decref(obj);
+            qobject_unref(obj);
         }
 
-        QDECREF(str);
+        qobject_unref(str);
     }
 }
 
@@ -99,9 +99,9 @@ static void simple_string(void)
         str = qobject_to_json(obj);
         g_assert(strcmp(qstring_get_str(str), test_cases[i].encoded) == 0);
 
-        qobject_decref(obj);
+        qobject_unref(obj);
         
-        QDECREF(str);
+        qobject_unref(str);
     }
 }
 
@@ -127,7 +127,7 @@ static void single_quote_string(void)
         g_assert(str);
         g_assert(strcmp(qstring_get_str(str), test_cases[i].decoded) == 0);
 
-        QDECREF(str);
+        qobject_unref(str);
     }
 }
 
@@ -823,7 +823,7 @@ static void utf8_string(void)
         } else {
             g_assert(!obj);
         }
-        qobject_decref(obj);
+        qobject_unref(obj);
 
         obj = QOBJECT(qstring_from_str(utf8_in));
         str = qobject_to_json(obj);
@@ -833,8 +833,8 @@ static void utf8_string(void)
         } else {
             g_assert(!str);
         }
-        QDECREF(str);
-        qobject_decref(obj);
+        qobject_unref(str);
+        qobject_unref(obj);
 
         /*
          * Disabled, because qobject_from_json() is buggy, and I can't
@@ -869,7 +869,7 @@ static void vararg_string(void)
         g_assert(str);
         g_assert(strcmp(qstring_get_str(str), test_cases[i].decoded) == 0);
 
-        QDECREF(str);
+        qobject_unref(str);
     }
 }
 
@@ -904,10 +904,10 @@ static void simple_number(void)
 
             str = qobject_to_json(QOBJECT(qnum));
             g_assert(strcmp(qstring_get_str(str), test_cases[i].encoded) == 0);
-            QDECREF(str);
+            qobject_unref(str);
         }
 
-        QDECREF(qnum);
+        qobject_unref(qnum);
     }
 }
 
@@ -928,8 +928,8 @@ static void large_number(void)
 
     str = qobject_to_json(QOBJECT(qnum));
     g_assert_cmpstr(qstring_get_str(str), ==, maxu64);
-    QDECREF(str);
-    QDECREF(qnum);
+    qobject_unref(str);
+    qobject_unref(qnum);
 
     qnum = qobject_to(QNum, qobject_from_json(gtu64, &error_abort));
     g_assert(qnum);
@@ -939,8 +939,8 @@ static void large_number(void)
 
     str = qobject_to_json(QOBJECT(qnum));
     g_assert_cmpstr(qstring_get_str(str), ==, gtu64);
-    QDECREF(str);
-    QDECREF(qnum);
+    qobject_unref(str);
+    qobject_unref(qnum);
 
     qnum = qobject_to(QNum, qobject_from_json(lti64, &error_abort));
     g_assert(qnum);
@@ -950,8 +950,8 @@ static void large_number(void)
 
     str = qobject_to_json(QOBJECT(qnum));
     g_assert_cmpstr(qstring_get_str(str), ==, "-9223372036854775808");
-    QDECREF(str);
-    QDECREF(qnum);
+    qobject_unref(str);
+    qobject_unref(qnum);
 }
 
 static void float_number(void)
@@ -983,10 +983,10 @@ static void float_number(void)
 
             str = qobject_to_json(obj);
             g_assert(strcmp(qstring_get_str(str), test_cases[i].encoded) == 0);
-            QDECREF(str);
+            qobject_unref(str);
         }
 
-        QDECREF(qnum);
+        qobject_unref(qnum);
     }
 }
 
@@ -1001,16 +1001,16 @@ static void vararg_number(void)
     qnum = qobject_to(QNum, qobject_from_jsonf("%d", value));
     g_assert(qnum_get_try_int(qnum, &val));
     g_assert_cmpint(val, ==, value);
-    QDECREF(qnum);
+    qobject_unref(qnum);
 
     qnum = qobject_to(QNum, qobject_from_jsonf("%lld", value_ll));
     g_assert(qnum_get_try_int(qnum, &val));
     g_assert_cmpint(val, ==, value_ll);
-    QDECREF(qnum);
+    qobject_unref(qnum);
 
     qnum = qobject_to(QNum, qobject_from_jsonf("%f", valuef));
     g_assert(qnum_get_double(qnum) == valuef);
-    QDECREF(qnum);
+    qobject_unref(qnum);
 }
 
 static void keyword_literal(void)
@@ -1027,9 +1027,9 @@ static void keyword_literal(void)
 
     str = qobject_to_json(obj);
     g_assert(strcmp(qstring_get_str(str), "true") == 0);
-    QDECREF(str);
+    qobject_unref(str);
 
-    QDECREF(qbool);
+    qobject_unref(qbool);
 
     obj = qobject_from_json("false", &error_abort);
     qbool = qobject_to(QBool, obj);
@@ -1038,20 +1038,20 @@ static void keyword_literal(void)
 
     str = qobject_to_json(obj);
     g_assert(strcmp(qstring_get_str(str), "false") == 0);
-    QDECREF(str);
+    qobject_unref(str);
 
-    QDECREF(qbool);
+    qobject_unref(qbool);
 
     qbool = qobject_to(QBool, qobject_from_jsonf("%i", false));
     g_assert(qbool);
     g_assert(qbool_get_bool(qbool) == false);
-    QDECREF(qbool);
+    qobject_unref(qbool);
 
     /* Test that non-zero values other than 1 get collapsed to true */
     qbool = qobject_to(QBool, qobject_from_jsonf("%i", 2));
     g_assert(qbool);
     g_assert(qbool_get_bool(qbool) == true);
-    QDECREF(qbool);
+    qobject_unref(qbool);
 
     obj = qobject_from_json("null", &error_abort);
     g_assert(obj != NULL);
@@ -1060,8 +1060,8 @@ static void keyword_literal(void)
     null = qnull();
     g_assert(QOBJECT(null) == obj);
 
-    qobject_decref(obj);
-    QDECREF(null);
+    qobject_unref(obj);
+    qobject_unref(null);
 }
 
 static void simple_dict(void)
@@ -1101,12 +1101,12 @@ static void simple_dict(void)
         g_assert(qlit_equal_qobject(&test_cases[i].decoded, obj));
 
         str = qobject_to_json(obj);
-        qobject_decref(obj);
+        qobject_unref(obj);
 
         obj = qobject_from_json(qstring_get_str(str), &error_abort);
         g_assert(qlit_equal_qobject(&test_cases[i].decoded, obj));
-        qobject_decref(obj);
-        QDECREF(str);
+        qobject_unref(obj);
+        qobject_unref(str);
     }
 }
 
@@ -1158,7 +1158,7 @@ static void large_dict(void)
     obj = qobject_from_json(gstr->str, &error_abort);
     g_assert(obj != NULL);
 
-    qobject_decref(obj);
+    qobject_unref(obj);
     g_string_free(gstr, true);
 }
 
@@ -1210,12 +1210,12 @@ static void simple_list(void)
         g_assert(qlit_equal_qobject(&test_cases[i].decoded, obj));
 
         str = qobject_to_json(obj);
-        qobject_decref(obj);
+        qobject_unref(obj);
 
         obj = qobject_from_json(qstring_get_str(str), &error_abort);
         g_assert(qlit_equal_qobject(&test_cases[i].decoded, obj));
-        qobject_decref(obj);
-        QDECREF(str);
+        qobject_unref(obj);
+        qobject_unref(str);
     }
 }
 
@@ -1272,13 +1272,13 @@ static void simple_whitespace(void)
         g_assert(qlit_equal_qobject(&test_cases[i].decoded, obj));
 
         str = qobject_to_json(obj);
-        qobject_decref(obj);
+        qobject_unref(obj);
 
         obj = qobject_from_json(qstring_get_str(str), &error_abort);
         g_assert(qlit_equal_qobject(&test_cases[i].decoded, obj));
 
-        qobject_decref(obj);
-        QDECREF(str);
+        qobject_unref(obj);
+        qobject_unref(str);
     }
 }
 
@@ -1301,7 +1301,7 @@ static void simple_varargs(void)
     obj = qobject_from_jsonf("[%d, 2, %p]", 1, embedded_obj);
     g_assert(qlit_equal_qobject(&decoded, obj));
 
-    qobject_decref(obj);
+    qobject_unref(obj);
 }
 
 static void empty_input(void)
@@ -1410,7 +1410,7 @@ static void limits_nesting(void)
 
     obj = qobject_from_json(make_nest(buf, max_nesting), &error_abort);
     g_assert(obj != NULL);
-    qobject_decref(obj);
+    qobject_unref(obj);
 
     obj = qobject_from_json(make_nest(buf, max_nesting + 1), &err);
     error_free_or_abort(&err);
diff --git a/tests/check-qlist.c b/tests/check-qlist.c
index a1c69ed648..ece83e293d 100644
--- a/tests/check-qlist.c
+++ b/tests/check-qlist.c
@@ -29,7 +29,7 @@ static void qlist_new_test(void)
     g_assert(qlist->base.refcnt == 1);
     g_assert(qobject_type(QOBJECT(qlist)) == QTYPE_QLIST);
 
-    QDECREF(qlist);
+    qobject_unref(qlist);
 }
 
 static void qlist_append_test(void)
@@ -47,7 +47,7 @@ static void qlist_append_test(void)
     g_assert(entry != NULL);
     g_assert(entry->value == QOBJECT(qi));
 
-    QDECREF(qlist);
+    qobject_unref(qlist);
 }
 
 static void qobject_to_qlist_test(void)
@@ -58,7 +58,7 @@ static void qobject_to_qlist_test(void)
 
     g_assert(qobject_to(QList, QOBJECT(qlist)) == qlist);
 
-    QDECREF(qlist);
+    qobject_unref(qlist);
 }
 
 static int iter_called;
@@ -96,7 +96,7 @@ static void qlist_iter_test(void)
 
     g_assert(iter_called == iter_max);
 
-    QDECREF(qlist);
+    qobject_unref(qlist);
 }
 
 int main(int argc, char **argv)
diff --git a/tests/check-qlit.c b/tests/check-qlit.c
index 96bbb06f2c..bd6798d912 100644
--- a/tests/check-qlit.c
+++ b/tests/check-qlit.c
@@ -62,7 +62,7 @@ static void qlit_equal_qobject_test(void)
     qdict_put(qobject_to(QDict, qobj), "bee", qlist_new());
     g_assert(!qlit_equal_qobject(&qlit, qobj));
 
-    qobject_decref(qobj);
+    qobject_unref(qobj);
 }
 
 static void qobject_from_qlit_test(void)
@@ -79,15 +79,15 @@ static void qobject_from_qlit_test(void)
     bee = qdict_get_qlist(qdict, "bee");
     obj = qlist_pop(bee);
     g_assert_cmpint(qnum_get_int(qobject_to(QNum, obj)), ==, 43);
-    qobject_decref(obj);
+    qobject_unref(obj);
     obj = qlist_pop(bee);
     g_assert_cmpint(qnum_get_int(qobject_to(QNum, obj)), ==, 44);
-    qobject_decref(obj);
+    qobject_unref(obj);
     obj = qlist_pop(bee);
     g_assert(qbool_get_bool(qobject_to(QBool, obj)));
-    qobject_decref(obj);
+    qobject_unref(obj);
 
-    qobject_decref(qobj);
+    qobject_unref(qobj);
 }
 
 int main(int argc, char **argv)
diff --git a/tests/check-qnull.c b/tests/check-qnull.c
index afa4400da1..ebf21db83c 100644
--- a/tests/check-qnull.c
+++ b/tests/check-qnull.c
@@ -30,7 +30,7 @@ static void qnull_ref_test(void)
     g_assert(obj == QOBJECT(&qnull_));
     g_assert(qnull_.base.refcnt == 2);
     g_assert(qobject_type(obj) == QTYPE_QNULL);
-    qobject_decref(obj);
+    qobject_unref(obj);
     g_assert(qnull_.base.refcnt == 1);
 }
 
@@ -49,10 +49,10 @@ static void qnull_visit_test(void)
     g_assert(qnull_.base.refcnt == 1);
     obj = QOBJECT(qnull());
     v = qobject_input_visitor_new(obj);
-    qobject_decref(obj);
+    qobject_unref(obj);
     visit_type_null(v, NULL, &null, &error_abort);
     g_assert(obj == QOBJECT(&qnull_));
-    QDECREF(null);
+    qobject_unref(null);
     visit_free(v);
 
     null = NULL;
@@ -60,8 +60,8 @@ static void qnull_visit_test(void)
     visit_type_null(v, NULL, &null, &error_abort);
     visit_complete(v, &obj);
     g_assert(obj == QOBJECT(&qnull_));
-    QDECREF(null);
-    qobject_decref(obj);
+    qobject_unref(null);
+    qobject_unref(obj);
     visit_free(v);
 
     g_assert(qnull_.base.refcnt == 1);
diff --git a/tests/check-qnum.c b/tests/check-qnum.c
index 9187da734b..4105015872 100644
--- a/tests/check-qnum.c
+++ b/tests/check-qnum.c
@@ -35,7 +35,7 @@ static void qnum_from_int_test(void)
     g_assert_cmpint(qn->base.refcnt, ==, 1);
     g_assert_cmpint(qobject_type(QOBJECT(qn)), ==, QTYPE_QNUM);
 
-    QDECREF(qn);
+    qobject_unref(qn);
 }
 
 static void qnum_from_uint_test(void)
@@ -50,7 +50,7 @@ static void qnum_from_uint_test(void)
     g_assert(qn->base.refcnt == 1);
     g_assert(qobject_type(QOBJECT(qn)) == QTYPE_QNUM);
 
-    QDECREF(qn);
+    qobject_unref(qn);
 }
 
 static void qnum_from_double_test(void)
@@ -65,7 +65,7 @@ static void qnum_from_double_test(void)
     g_assert_cmpint(qn->base.refcnt, ==, 1);
     g_assert_cmpint(qobject_type(QOBJECT(qn)), ==, QTYPE_QNUM);
 
-    QDECREF(qn);
+    qobject_unref(qn);
 }
 
 static void qnum_from_int64_test(void)
@@ -76,7 +76,7 @@ static void qnum_from_int64_test(void)
     qn = qnum_from_int(value);
     g_assert_cmpint((int64_t) qn->u.i64, ==, value);
 
-    QDECREF(qn);
+    qobject_unref(qn);
 }
 
 static void qnum_get_int_test(void)
@@ -87,7 +87,7 @@ static void qnum_get_int_test(void)
     qn = qnum_from_int(value);
     g_assert_cmpint(qnum_get_int(qn), ==, value);
 
-    QDECREF(qn);
+    qobject_unref(qn);
 }
 
 static void qnum_get_uint_test(void)
@@ -100,25 +100,25 @@ static void qnum_get_uint_test(void)
     qn = qnum_from_uint(value);
     g_assert(qnum_get_try_uint(qn, &val));
     g_assert_cmpuint(val, ==, value);
-    QDECREF(qn);
+    qobject_unref(qn);
 
     qn = qnum_from_int(value);
     g_assert(qnum_get_try_uint(qn, &val));
     g_assert_cmpuint(val, ==, value);
-    QDECREF(qn);
+    qobject_unref(qn);
 
     /* invalid cases */
     qn = qnum_from_int(-1);
     g_assert(!qnum_get_try_uint(qn, &val));
-    QDECREF(qn);
+    qobject_unref(qn);
 
     qn = qnum_from_uint(-1ULL);
     g_assert(!qnum_get_try_int(qn, &ival));
-    QDECREF(qn);
+    qobject_unref(qn);
 
     qn = qnum_from_double(0.42);
     g_assert(!qnum_get_try_uint(qn, &val));
-    QDECREF(qn);
+    qobject_unref(qn);
 }
 
 static void qobject_to_qnum_test(void)
@@ -127,11 +127,11 @@ static void qobject_to_qnum_test(void)
 
     qn = qnum_from_int(0);
     g_assert(qobject_to(QNum, QOBJECT(qn)) == qn);
-    QDECREF(qn);
+    qobject_unref(qn);
 
     qn = qnum_from_double(0);
     g_assert(qobject_to(QNum, QOBJECT(qn)) == qn);
-    QDECREF(qn);
+    qobject_unref(qn);
 }
 
 static void qnum_to_string_test(void)
@@ -143,13 +143,13 @@ static void qnum_to_string_test(void)
     tmp = qnum_to_string(qn);
     g_assert_cmpstr(tmp, ==, "123456");
     g_free(tmp);
-    QDECREF(qn);
+    qobject_unref(qn);
 
     qn = qnum_from_double(0.42);
     tmp = qnum_to_string(qn);
     g_assert_cmpstr(tmp, ==, "0.42");
     g_free(tmp);
-    QDECREF(qn);
+    qobject_unref(qn);
 }
 
 int main(int argc, char **argv)
diff --git a/tests/check-qobject.c b/tests/check-qobject.c
index 7629b8071b..5cb08fcb63 100644
--- a/tests/check-qobject.c
+++ b/tests/check-qobject.c
@@ -80,7 +80,7 @@ static void do_free_all(int _, ...)
 
     va_start(ap, _);
     while ((obj = va_arg(ap, QObject *)) != NULL) {
-        qobject_decref(obj);
+        qobject_unref(obj);
     }
     va_end(ap);
 }
diff --git a/tests/check-qstring.c b/tests/check-qstring.c
index 9c4dd3f94f..f11a7a8605 100644
--- a/tests/check-qstring.c
+++ b/tests/check-qstring.c
@@ -31,7 +31,7 @@ static void qstring_from_str_test(void)
     g_assert(strcmp(str, qstring->string) == 0);
     g_assert(qobject_type(QOBJECT(qstring)) == QTYPE_QSTRING);
 
-    QDECREF(qstring);
+    qobject_unref(qstring);
 }
 
 static void qstring_get_str_test(void)
@@ -44,7 +44,7 @@ static void qstring_get_str_test(void)
     ret_str = qstring_get_str(qstring);
     g_assert(strcmp(ret_str, str) == 0);
 
-    QDECREF(qstring);
+    qobject_unref(qstring);
 }
 
 static void qstring_append_chr_test(void)
@@ -59,7 +59,7 @@ static void qstring_append_chr_test(void)
         qstring_append_chr(qstring, str[i]);
 
     g_assert(strcmp(str, qstring_get_str(qstring)) == 0);
-    QDECREF(qstring);
+    qobject_unref(qstring);
 }
 
 static void qstring_from_substr_test(void)
@@ -70,7 +70,7 @@ static void qstring_from_substr_test(void)
     g_assert(qs != NULL);
     g_assert(strcmp(qstring_get_str(qs), "tualiza") == 0);
 
-    QDECREF(qs);
+    qobject_unref(qs);
 }
 
 
@@ -81,7 +81,7 @@ static void qobject_to_qstring_test(void)
     qstring = qstring_from_str("foo");
     g_assert(qobject_to(QString, QOBJECT(qstring)) == qstring);
 
-    QDECREF(qstring);
+    qobject_unref(qstring);
 }
 
 int main(int argc, char **argv)
diff --git a/tests/cpu-plug-test.c b/tests/cpu-plug-test.c
index 8b5ab1fd02..5f39ba0df3 100644
--- a/tests/cpu-plug-test.c
+++ b/tests/cpu-plug-test.c
@@ -42,7 +42,7 @@ static void test_plug_with_cpu_add(gconstpointer data)
                        "  'arguments': { 'id': %d } }", i);
         g_assert(response);
         g_assert(!qdict_haskey(response, "error"));
-        QDECREF(response);
+        qobject_unref(response);
     }
 
     qtest_end();
@@ -66,7 +66,7 @@ static void test_plug_without_cpu_add(gconstpointer data)
                    s->sockets * s->cores * s->threads);
     g_assert(response);
     g_assert(qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 
     qtest_end();
     g_free(args);
diff --git a/tests/device-introspect-test.c b/tests/device-introspect-test.c
index a01321aced..0b4f221c29 100644
--- a/tests/device-introspect-test.c
+++ b/tests/device-introspect-test.c
@@ -40,8 +40,8 @@ static QList *qom_list_types(const char *implements, bool abstract)
                " 'arguments': %p }", args);
     g_assert(qdict_haskey(resp, "return"));
     ret = qdict_get_qlist(resp, "return");
-    QINCREF(ret);
-    QDECREF(resp);
+    qobject_ref(ret);
+    qobject_unref(resp);
     return ret;
 }
 
@@ -54,7 +54,7 @@ static QDict *qom_type_index(QList *types)
     QLIST_FOREACH_ENTRY(types, e) {
         QDict *d = qobject_to(QDict, qlist_entry_obj(e));
         const char *name = qdict_get_str(d, "name");
-        QINCREF(d);
+        qobject_ref(d);
         qdict_put(index, name, d);
     }
     return index;
@@ -108,7 +108,7 @@ static void test_one_device(const char *type)
     resp = qmp("{'execute': 'device-list-properties',"
                " 'arguments': {'typename': %s}}",
                type);
-    QDECREF(resp);
+    qobject_unref(resp);
 
     help = hmp("device_add \"%s,help\"", type);
     g_free(help);
@@ -129,7 +129,7 @@ static void test_device_intro_list(void)
     qtest_start(common_args);
 
     types = device_type_list(true);
-    QDECREF(types);
+    qobject_unref(types);
 
     help = hmp("device_add help");
     g_free(help);
@@ -157,8 +157,8 @@ static void test_qom_list_parents(const char *parent)
         g_assert(qom_has_parent(index, name, parent));
     }
 
-    QDECREF(types);
-    QDECREF(index);
+    qobject_unref(types);
+    qobject_unref(index);
 }
 
 static void test_qom_list_fields(void)
@@ -187,8 +187,8 @@ static void test_qom_list_fields(void)
     test_qom_list_parents("device");
     test_qom_list_parents("sys-bus-device");
 
-    QDECREF(all_types);
-    QDECREF(non_abstract);
+    qobject_unref(all_types);
+    qobject_unref(non_abstract);
     qtest_end();
 }
 
@@ -222,7 +222,7 @@ static void test_device_intro_concrete(void)
         test_one_device(type);
     }
 
-    QDECREF(types);
+    qobject_unref(types);
     qtest_end();
 }
 
@@ -255,8 +255,8 @@ static void test_abstract_interfaces(void)
         g_assert(qdict_haskey(d, "abstract") && qdict_get_bool(d, "abstract"));
     }
 
-    QDECREF(all_types);
-    QDECREF(index);
+    qobject_unref(all_types);
+    qobject_unref(index);
     qtest_end();
 }
 
diff --git a/tests/drive_del-test.c b/tests/drive_del-test.c
index 313030a14c..852fefc8f3 100644
--- a/tests/drive_del-test.c
+++ b/tests/drive_del-test.c
@@ -41,7 +41,7 @@ static void device_del(void)
     response = qmp_receive();
     g_assert(response);
     g_assert(qdict_haskey(response, "return"));
-    QDECREF(response);
+    qobject_unref(response);
 }
 
 static void test_drive_without_dev(void)
@@ -78,7 +78,7 @@ static void test_after_failed_device_add(void)
     g_assert(response);
     error = qdict_get_qdict(response, "error");
     g_assert_cmpstr(qdict_get_try_str(error, "class"), ==, "GenericError");
-    QDECREF(response);
+    qobject_unref(response);
 
     /* Delete the drive */
     drive_del();
diff --git a/tests/libqos/libqos.c b/tests/libqos/libqos.c
index 5124e982c1..013ca68581 100644
--- a/tests/libqos/libqos.c
+++ b/tests/libqos/libqos.c
@@ -100,14 +100,14 @@ void migrate(QOSState *from, QOSState *to, const char *uri)
     sub = qdict_get_qdict(rsp, "return");
     g_assert(qdict_haskey(sub, "running"));
     running = qdict_get_bool(sub, "running");
-    QDECREF(rsp);
+    qobject_unref(rsp);
 
     /* Issue the migrate command. */
     rsp = qtest_qmp(from->qts,
                     "{ 'execute': 'migrate', 'arguments': { 'uri': %s }}",
                     uri);
     g_assert(qdict_haskey(rsp, "return"));
-    QDECREF(rsp);
+    qobject_unref(rsp);
 
     /* Wait for STOP event, but only if we were running: */
     if (running) {
@@ -132,12 +132,12 @@ void migrate(QOSState *from, QOSState *to, const char *uri)
 
         /* "setup", "active", "completed", "failed", "cancelled" */
         if (strcmp(st, "completed") == 0) {
-            QDECREF(rsp);
+            qobject_unref(rsp);
             break;
         }
 
         if ((strcmp(st, "setup") == 0) || (strcmp(st, "active") == 0)) {
-            QDECREF(rsp);
+            qobject_unref(rsp);
             g_usleep(5000);
             continue;
         }
diff --git a/tests/libqos/pci-pc.c b/tests/libqos/pci-pc.c
index a2daf6103d..a7803308b7 100644
--- a/tests/libqos/pci-pc.c
+++ b/tests/libqos/pci-pc.c
@@ -170,7 +170,7 @@ void qpci_unplug_acpi_device_test(const char *id, uint8_t slot)
     g_free(cmd);
     g_assert(response);
     g_assert(!qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 
     outb(ACPI_PCIHP_ADDR + PCI_EJ_BASE, 1 << slot);
 
diff --git a/tests/libqtest.c b/tests/libqtest.c
index 6f33a37667..43fb97e035 100644
--- a/tests/libqtest.c
+++ b/tests/libqtest.c
@@ -517,8 +517,8 @@ void qmp_fd_sendv(int fd, const char *fmt, va_list ap)
         /* Send QMP request */
         socket_send(fd, str, qstring_get_length(qstr));
 
-        QDECREF(qstr);
-        qobject_decref(qobj);
+        qobject_unref(qstr);
+        qobject_unref(qobj);
     }
 }
 
@@ -585,7 +585,7 @@ void qtest_async_qmp(QTestState *s, const char *fmt, ...)
 void qtest_qmpv_discard_response(QTestState *s, const char *fmt, va_list ap)
 {
     QDict *response = qtest_qmpv(s, fmt, ap);
-    QDECREF(response);
+    qobject_unref(response);
 }
 
 void qtest_qmp_discard_response(QTestState *s, const char *fmt, ...)
@@ -596,7 +596,7 @@ void qtest_qmp_discard_response(QTestState *s, const char *fmt, ...)
     va_start(ap, fmt);
     response = qtest_qmpv(s, fmt, ap);
     va_end(ap);
-    QDECREF(response);
+    qobject_unref(response);
 }
 
 QDict *qtest_qmp_eventwait_ref(QTestState *s, const char *event)
@@ -609,7 +609,7 @@ QDict *qtest_qmp_eventwait_ref(QTestState *s, const char *event)
             (strcmp(qdict_get_str(response, "event"), event) == 0)) {
             return response;
         }
-        QDECREF(response);
+        qobject_unref(response);
     }
 }
 
@@ -618,7 +618,7 @@ void qtest_qmp_eventwait(QTestState *s, const char *event)
     QDict *response;
 
     response = qtest_qmp_eventwait_ref(s, event);
-    QDECREF(response);
+    qobject_unref(response);
 }
 
 char *qtest_hmpv(QTestState *s, const char *fmt, va_list ap)
@@ -634,12 +634,12 @@ char *qtest_hmpv(QTestState *s, const char *fmt, va_list ap)
     ret = g_strdup(qdict_get_try_str(resp, "return"));
     while (ret == NULL && qdict_get_try_str(resp, "event")) {
         /* Ignore asynchronous QMP events */
-        QDECREF(resp);
+        qobject_unref(resp);
         resp = qtest_qmp_receive(s);
         ret = g_strdup(qdict_get_try_str(resp, "return"));
     }
     g_assert(ret);
-    QDECREF(resp);
+    qobject_unref(resp);
     g_free(cmd);
     return ret;
 }
@@ -1021,7 +1021,7 @@ void qtest_cb_for_every_machine(void (*cb)(const char *machine))
     }
 
     qtest_end();
-    QDECREF(response);
+    qobject_unref(response);
 }
 
 /*
@@ -1050,7 +1050,7 @@ void qtest_qmp_device_add(const char *driver, const char *id, const char *fmt,
     g_assert(response);
     g_assert(!qdict_haskey(response, "event")); /* We don't expect any events */
     g_assert(!qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 }
 
 /*
@@ -1095,6 +1095,6 @@ void qtest_qmp_device_del(const char *id)
     g_assert(event);
     g_assert_cmpstr(qdict_get_str(event, "event"), ==, "DEVICE_DELETED");
 
-    QDECREF(response1);
-    QDECREF(response2);
+    qobject_unref(response1);
+    qobject_unref(response2);
 }
diff --git a/tests/machine-none-test.c b/tests/machine-none-test.c
index efdd4be986..f286557b3e 100644
--- a/tests/machine-none-test.c
+++ b/tests/machine-none-test.c
@@ -88,7 +88,7 @@ static void test_machine_cpu_cli(void)
 
     response = qmp("{ 'execute': 'quit' }");
     g_assert(qdict_haskey(response, "return"));
-    QDECREF(response);
+    qobject_unref(response);
 
     qtest_quit(global_qtest);
 }
diff --git a/tests/migration-test.c b/tests/migration-test.c
index dde7c464c3..b99661b773 100644
--- a/tests/migration-test.c
+++ b/tests/migration-test.c
@@ -195,7 +195,7 @@ static QDict *wait_command(QTestState *who, const char *command)
         if (!strcmp(event_string, "STOP")) {
             got_stop = true;
         }
-        QDECREF(response);
+        qobject_unref(response);
         response = qtest_qmp_receive(who);
     }
     return response;
@@ -221,7 +221,7 @@ static uint64_t get_migration_pass(QTestState *who)
         rsp_ram = qdict_get_qdict(rsp_return, "ram");
         result = qdict_get_try_int(rsp_ram, "dirty-sync-count", 0);
     }
-    QDECREF(rsp);
+    qobject_unref(rsp);
     return result;
 }
 
@@ -232,7 +232,7 @@ static void read_blocktime(QTestState *who)
     rsp = wait_command(who, "{ 'execute': 'query-migrate' }");
     rsp_return = qdict_get_qdict(rsp, "return");
     g_assert(qdict_haskey(rsp_return, "postcopy-blocktime"));
-    QDECREF(rsp);
+    qobject_unref(rsp);
 }
 
 static void wait_for_migration_complete(QTestState *who)
@@ -247,7 +247,7 @@ static void wait_for_migration_complete(QTestState *who)
         status = qdict_get_str(rsp_return, "status");
         completed = strcmp(status, "completed") == 0;
         g_assert_cmpstr(status, !=,  "failed");
-        QDECREF(rsp);
+        qobject_unref(rsp);
         if (completed) {
             return;
         }
@@ -334,7 +334,7 @@ static void migrate_check_parameter(QTestState *who, const char *parameter,
                              qdict_get_try_int(rsp_return,  parameter, -1));
     g_assert_cmpstr(result, ==, value);
     g_free(result);
-    QDECREF(rsp);
+    qobject_unref(rsp);
 }
 
 static void migrate_set_parameter(QTestState *who, const char *parameter,
@@ -349,7 +349,7 @@ static void migrate_set_parameter(QTestState *who, const char *parameter,
     rsp = qtest_qmp(who, cmd);
     g_free(cmd);
     g_assert(qdict_haskey(rsp, "return"));
-    QDECREF(rsp);
+    qobject_unref(rsp);
     migrate_check_parameter(who, parameter, value);
 }
 
@@ -367,7 +367,7 @@ static void migrate_set_capability(QTestState *who, const char *capability,
     rsp = qtest_qmp(who, cmd);
     g_free(cmd);
     g_assert(qdict_haskey(rsp, "return"));
-    QDECREF(rsp);
+    qobject_unref(rsp);
 }
 
 static void migrate(QTestState *who, const char *uri)
@@ -381,7 +381,7 @@ static void migrate(QTestState *who, const char *uri)
     rsp = qtest_qmp(who, cmd);
     g_free(cmd);
     g_assert(qdict_haskey(rsp, "return"));
-    QDECREF(rsp);
+    qobject_unref(rsp);
 }
 
 static void migrate_start_postcopy(QTestState *who)
@@ -390,7 +390,7 @@ static void migrate_start_postcopy(QTestState *who)
 
     rsp = wait_command(who, "{ 'execute': 'migrate-start-postcopy' }");
     g_assert(qdict_haskey(rsp, "return"));
-    QDECREF(rsp);
+    qobject_unref(rsp);
 }
 
 static void test_migrate_start(QTestState **from, QTestState **to,
@@ -503,7 +503,7 @@ static void deprecated_set_downtime(QTestState *who, const double value)
     rsp = qtest_qmp(who, cmd);
     g_free(cmd);
     g_assert(qdict_haskey(rsp, "return"));
-    QDECREF(rsp);
+    qobject_unref(rsp);
     result_int = value * 1000L;
     expected = g_strdup_printf("%" PRId64, result_int);
     migrate_check_parameter(who, "downtime-limit", expected);
@@ -520,7 +520,7 @@ static void deprecated_set_speed(QTestState *who, const char *value)
     rsp = qtest_qmp(who, cmd);
     g_free(cmd);
     g_assert(qdict_haskey(rsp, "return"));
-    QDECREF(rsp);
+    qobject_unref(rsp);
     migrate_check_parameter(who, "max-bandwidth", value);
 }
 
@@ -597,7 +597,7 @@ static void test_baddest(void)
 
         g_assert(!strcmp(status, "setup") || !(strcmp(status, "failed")));
         failed = !strcmp(status, "failed");
-        QDECREF(rsp);
+        qobject_unref(rsp);
     } while (!failed);
 
     /* Is the machine currently running? */
@@ -606,7 +606,7 @@ static void test_baddest(void)
     rsp_return = qdict_get_qdict(rsp, "return");
     g_assert(qdict_haskey(rsp_return, "running"));
     g_assert(qdict_get_bool(rsp_return, "running"));
-    QDECREF(rsp);
+    qobject_unref(rsp);
 
     test_migrate_end(from, to, false);
 }
diff --git a/tests/numa-test.c b/tests/numa-test.c
index 0f861d8176..169213fc1c 100644
--- a/tests/numa-test.c
+++ b/tests/numa-test.c
@@ -111,10 +111,10 @@ static void test_query_cpus(const void *data)
         } else {
             g_assert_cmpint(node, ==, 1);
         }
-        qobject_decref(e);
+        qobject_unref(e);
     }
 
-    QDECREF(resp);
+    qobject_unref(resp);
     qtest_end();
     g_free(cli);
 }
@@ -164,10 +164,10 @@ static void pc_numa_cpu(const void *data)
         } else {
             g_assert(false);
         }
-        qobject_decref(e);
+        qobject_unref(e);
     }
 
-    QDECREF(resp);
+    qobject_unref(resp);
     qtest_end();
     g_free(cli);
 }
@@ -209,10 +209,10 @@ static void spapr_numa_cpu(const void *data)
         } else {
             g_assert(false);
         }
-        qobject_decref(e);
+        qobject_unref(e);
     }
 
-    QDECREF(resp);
+    qobject_unref(resp);
     qtest_end();
     g_free(cli);
 }
@@ -252,10 +252,10 @@ static void aarch64_numa_cpu(const void *data)
         } else {
             g_assert(false);
         }
-        qobject_decref(e);
+        qobject_unref(e);
     }
 
-    QDECREF(resp);
+    qobject_unref(resp);
     qtest_end();
     g_free(cli);
 }
diff --git a/tests/pvpanic-test.c b/tests/pvpanic-test.c
index ebdf32c2e2..7461a7254f 100644
--- a/tests/pvpanic-test.c
+++ b/tests/pvpanic-test.c
@@ -28,7 +28,7 @@ static void test_panic(void)
     data = qdict_get_qdict(response, "data");
     g_assert(qdict_haskey(data, "action"));
     g_assert_cmpstr(qdict_get_str(data, "action"), ==, "pause");
-    QDECREF(response);
+    qobject_unref(response);
 }
 
 int main(int argc, char **argv)
diff --git a/tests/q35-test.c b/tests/q35-test.c
index 3eaedf4b24..7ea7acc9d8 100644
--- a/tests/q35-test.c
+++ b/tests/q35-test.c
@@ -109,7 +109,7 @@ static void test_smram_lock(void)
     response = qmp("{'execute': 'system_reset', 'arguments': {} }");
     g_assert(response);
     g_assert(!qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 
     /* check open is settable again */
     smram_set_bit(pcidev, MCH_HOST_BRIDGE_SMRAM_D_OPEN, false);
diff --git a/tests/qmp-test.c b/tests/qmp-test.c
index 772058fc4c..88f867f8c0 100644
--- a/tests/qmp-test.c
+++ b/tests/qmp-test.c
@@ -52,27 +52,27 @@ static void test_malformed(QTestState *qts)
     /* Not even a dictionary */
     resp = qtest_qmp(qts, "null");
     g_assert_cmpstr(get_error_class(resp), ==, "GenericError");
-    QDECREF(resp);
+    qobject_unref(resp);
 
     /* No "execute" key */
     resp = qtest_qmp(qts, "{}");
     g_assert_cmpstr(get_error_class(resp), ==, "GenericError");
-    QDECREF(resp);
+    qobject_unref(resp);
 
     /* "execute" isn't a string */
     resp = qtest_qmp(qts, "{ 'execute': true }");
     g_assert_cmpstr(get_error_class(resp), ==, "GenericError");
-    QDECREF(resp);
+    qobject_unref(resp);
 
     /* "arguments" isn't a dictionary */
     resp = qtest_qmp(qts, "{ 'execute': 'no-such-cmd', 'arguments': [] }");
     g_assert_cmpstr(get_error_class(resp), ==, "GenericError");
-    QDECREF(resp);
+    qobject_unref(resp);
 
     /* extra key */
     resp = qtest_qmp(qts, "{ 'execute': 'no-such-cmd', 'extra': true }");
     g_assert_cmpstr(get_error_class(resp), ==, "GenericError");
-    QDECREF(resp);
+    qobject_unref(resp);
 }
 
 static void test_qmp_protocol(void)
@@ -90,12 +90,12 @@ static void test_qmp_protocol(void)
     test_version(qdict_get(q, "version"));
     capabilities = qdict_get_qlist(q, "capabilities");
     g_assert(capabilities && qlist_empty(capabilities));
-    QDECREF(resp);
+    qobject_unref(resp);
 
     /* Test valid command before handshake */
     resp = qtest_qmp(qts, "{ 'execute': 'query-version' }");
     g_assert_cmpstr(get_error_class(resp), ==, "CommandNotFound");
-    QDECREF(resp);
+    qobject_unref(resp);
 
     /* Test malformed commands before handshake */
     test_malformed(qts);
@@ -104,17 +104,17 @@ static void test_qmp_protocol(void)
     resp = qtest_qmp(qts, "{ 'execute': 'qmp_capabilities' }");
     ret = qdict_get_qdict(resp, "return");
     g_assert(ret && !qdict_size(ret));
-    QDECREF(resp);
+    qobject_unref(resp);
 
     /* Test repeated handshake */
     resp = qtest_qmp(qts, "{ 'execute': 'qmp_capabilities' }");
     g_assert_cmpstr(get_error_class(resp), ==, "CommandNotFound");
-    QDECREF(resp);
+    qobject_unref(resp);
 
     /* Test valid command */
     resp = qtest_qmp(qts, "{ 'execute': 'query-version' }");
     test_version(qdict_get(resp, "return"));
-    QDECREF(resp);
+    qobject_unref(resp);
 
     /* Test malformed commands */
     test_malformed(qts);
@@ -124,13 +124,13 @@ static void test_qmp_protocol(void)
     ret = qdict_get_qdict(resp, "return");
     g_assert(ret);
     g_assert_cmpstr(qdict_get_try_str(resp, "id"), ==, "cookie#1");
-    QDECREF(resp);
+    qobject_unref(resp);
 
     /* Test command failure with 'id' */
     resp = qtest_qmp(qts, "{ 'execute': 'human-monitor-command', 'id': 2 }");
     g_assert_cmpstr(get_error_class(resp), ==, "GenericError");
     g_assert_cmpint(qdict_get_int(resp, "id"), ==, 2);
-    QDECREF(resp);
+    qobject_unref(resp);
 
     qtest_quit(qts);
 }
@@ -159,21 +159,21 @@ static void test_qmp_oob(void)
     qstr = qobject_to(QString, entry->value);
     g_assert(qstr);
     g_assert_cmpstr(qstring_get_str(qstr), ==, "oob");
-    QDECREF(resp);
+    qobject_unref(resp);
 
     /* Try a fake capability, it should fail. */
     resp = qtest_qmp(qts,
                      "{ 'execute': 'qmp_capabilities', "
                      "  'arguments': { 'enable': [ 'cap-does-not-exist' ] } }");
     g_assert(qdict_haskey(resp, "error"));
-    QDECREF(resp);
+    qobject_unref(resp);
 
     /* Now, enable OOB in current QMP session, it should succeed. */
     resp = qtest_qmp(qts,
                      "{ 'execute': 'qmp_capabilities', "
                      "  'arguments': { 'enable': [ 'oob' ] } }");
     g_assert(qdict_haskey(resp, "return"));
-    QDECREF(resp);
+    qobject_unref(resp);
 
     /*
      * Try any command that does not support OOB but with OOB flag. We
@@ -183,7 +183,7 @@ static void test_qmp_oob(void)
                      "{ 'execute': 'query-cpus',"
                      "  'control': { 'run-oob': true } }");
     g_assert(qdict_haskey(resp, "error"));
-    QDECREF(resp);
+    qobject_unref(resp);
 
     /*
      * First send the "x-oob-test" command with lock=true and
@@ -210,7 +210,7 @@ static void test_qmp_oob(void)
             !g_strcmp0(cmd_id, "unlock-cmd")) {
             acks++;
         }
-        QDECREF(resp);
+        qobject_unref(resp);
     }
 
     qtest_quit(qts);
@@ -271,7 +271,7 @@ static void test_query(const void *data)
                                         -1, &error_abort),
                         ==, expected_error_class);
     }
-    QDECREF(resp);
+    qobject_unref(resp);
 
     qtest_end();
 }
@@ -321,7 +321,7 @@ static void qmp_schema_init(QmpSchema *schema)
     visit_type_SchemaInfoList(qiv, NULL, &schema->list, &error_abort);
     visit_free(qiv);
 
-    QDECREF(resp);
+    qobject_unref(resp);
     qtest_end();
 
     schema->hash = g_hash_table_new(g_str_hash, g_str_equal);
diff --git a/tests/qom-test.c b/tests/qom-test.c
index a34ff6ba53..e6f712cbd3 100644
--- a/tests/qom-test.c
+++ b/tests/qom-test.c
@@ -57,7 +57,7 @@ static void test_properties(const char *path, bool recurse)
     g_assert(response);
 
     if (!recurse) {
-        QDECREF(response);
+        qobject_unref(response);
         return;
     }
 
@@ -82,10 +82,10 @@ static void test_properties(const char *path, bool recurse)
                       path, prop);
             /* qom-get may fail but should not, e.g., segfault. */
             g_assert(tmp);
-            QDECREF(tmp);
+            qobject_unref(tmp);
         }
     }
-    QDECREF(response);
+    qobject_unref(response);
 }
 
 static void test_machine(gconstpointer data)
@@ -101,7 +101,7 @@ static void test_machine(gconstpointer data)
 
     response = qmp("{ 'execute': 'quit' }");
     g_assert(qdict_haskey(response, "return"));
-    QDECREF(response);
+    qobject_unref(response);
 
     qtest_end();
     g_free(args);
diff --git a/tests/tco-test.c b/tests/tco-test.c
index aee17af3c1..9945fb8469 100644
--- a/tests/tco-test.c
+++ b/tests/tco-test.c
@@ -241,8 +241,8 @@ static QDict *get_watchdog_action(void)
     QDict *data;
 
     data = qdict_get_qdict(ev, "data");
-    QINCREF(data);
-    QDECREF(ev);
+    qobject_ref(data);
+    qobject_unref(ev);
     return data;
 }
 
@@ -265,7 +265,7 @@ static void test_tco_second_timeout_pause(void)
     clock_step(ticks * TCO_TICK_NSEC * 2);
     ad = get_watchdog_action();
     g_assert(!strcmp(qdict_get_str(ad, "action"), "pause"));
-    QDECREF(ad);
+    qobject_unref(ad);
 
     stop_tco(&td);
     test_end(&td);
@@ -290,7 +290,7 @@ static void test_tco_second_timeout_reset(void)
     clock_step(ticks * TCO_TICK_NSEC * 2);
     ad = get_watchdog_action();
     g_assert(!strcmp(qdict_get_str(ad, "action"), "reset"));
-    QDECREF(ad);
+    qobject_unref(ad);
 
     stop_tco(&td);
     test_end(&td);
@@ -315,7 +315,7 @@ static void test_tco_second_timeout_shutdown(void)
     clock_step(ticks * TCO_TICK_NSEC * 2);
     ad = get_watchdog_action();
     g_assert(!strcmp(qdict_get_str(ad, "action"), "shutdown"));
-    QDECREF(ad);
+    qobject_unref(ad);
 
     stop_tco(&td);
     test_end(&td);
@@ -340,7 +340,7 @@ static void test_tco_second_timeout_none(void)
     clock_step(ticks * TCO_TICK_NSEC * 2);
     ad = get_watchdog_action();
     g_assert(!strcmp(qdict_get_str(ad, "action"), "none"));
-    QDECREF(ad);
+    qobject_unref(ad);
 
     stop_tco(&td);
     test_end(&td);
diff --git a/tests/test-char.c b/tests/test-char.c
index 306c728335..1880d36783 100644
--- a/tests/test-char.c
+++ b/tests/test-char.c
@@ -322,7 +322,7 @@ static void char_socket_test_common(Chardev *chr)
     qdict = qobject_to(QDict, addr);
     port = qdict_get_str(qdict, "port");
     tmp = g_strdup_printf("tcp:127.0.0.1:%s", port);
-    QDECREF(qdict);
+    qobject_unref(qdict);
 
     qemu_chr_fe_init(&be, chr, &error_abort);
     qemu_chr_fe_set_handlers(&be, socket_can_read, socket_read,
diff --git a/tests/test-keyval.c b/tests/test-keyval.c
index 029f05202a..63cb14629b 100644
--- a/tests/test-keyval.c
+++ b/tests/test-keyval.c
@@ -30,7 +30,7 @@ static void test_keyval_parse(void)
     /* Nothing */
     qdict = keyval_parse("", NULL, &error_abort);
     g_assert_cmpuint(qdict_size(qdict), ==, 0);
-    QDECREF(qdict);
+    qobject_unref(qdict);
 
     /* Empty key (qemu_opts_parse() accepts this) */
     qdict = keyval_parse("=val", NULL, &err);
@@ -70,7 +70,7 @@ static void test_keyval_parse(void)
     qdict = keyval_parse(params + 2, NULL, &error_abort);
     g_assert_cmpuint(qdict_size(qdict), ==, 1);
     g_assert_cmpstr(qdict_get_try_str(qdict, long_key + 1), ==, "v");
-    QDECREF(qdict);
+    qobject_unref(qdict);
 
     /* Long key fragment */
     qdict = keyval_parse(params, NULL, &error_abort);
@@ -79,7 +79,7 @@ static void test_keyval_parse(void)
     g_assert(sub_qdict);
     g_assert_cmpuint(qdict_size(sub_qdict), ==, 1);
     g_assert_cmpstr(qdict_get_try_str(sub_qdict, long_key + 1), ==, "v");
-    QDECREF(qdict);
+    qobject_unref(qdict);
     g_free(params);
 
     /* Crap after valid key */
@@ -92,13 +92,13 @@ static void test_keyval_parse(void)
     g_assert_cmpuint(qdict_size(qdict), ==, 2);
     g_assert_cmpstr(qdict_get_try_str(qdict, "a"), ==, "3");
     g_assert_cmpstr(qdict_get_try_str(qdict, "b"), ==, "2,x");
-    QDECREF(qdict);
+    qobject_unref(qdict);
 
     /* Even when it doesn't in qemu_opts_parse() */
     qdict = keyval_parse("id=foo,id=bar", NULL, &error_abort);
     g_assert_cmpuint(qdict_size(qdict), ==, 1);
     g_assert_cmpstr(qdict_get_try_str(qdict, "id"), ==, "bar");
-    QDECREF(qdict);
+    qobject_unref(qdict);
 
     /* Dotted keys */
     qdict = keyval_parse("a.b.c=1,a.b.c=2,d=3", NULL, &error_abort);
@@ -111,7 +111,7 @@ static void test_keyval_parse(void)
     g_assert_cmpuint(qdict_size(sub_qdict), ==, 1);
     g_assert_cmpstr(qdict_get_try_str(sub_qdict, "c"), ==, "2");
     g_assert_cmpstr(qdict_get_try_str(qdict, "d"), ==, "3");
-    QDECREF(qdict);
+    qobject_unref(qdict);
 
     /* Inconsistent dotted keys */
     qdict = keyval_parse("a.b=1,a=2", NULL, &err);
@@ -125,7 +125,7 @@ static void test_keyval_parse(void)
     qdict = keyval_parse("x=y,", NULL, &error_abort);
     g_assert_cmpuint(qdict_size(qdict), ==, 1);
     g_assert_cmpstr(qdict_get_try_str(qdict, "x"), ==, "y");
-    QDECREF(qdict);
+    qobject_unref(qdict);
 
     /* Except when it isn't */
     qdict = keyval_parse(",", NULL, &err);
@@ -136,13 +136,13 @@ static void test_keyval_parse(void)
     qdict = keyval_parse("x=,,id=bar", NULL, &error_abort);
     g_assert_cmpuint(qdict_size(qdict), ==, 1);
     g_assert_cmpstr(qdict_get_try_str(qdict, "x"), ==, ",id=bar");
-    QDECREF(qdict);
+    qobject_unref(qdict);
 
     /* Anti-social ID is left to caller (qemu_opts_parse() rejects it) */
     qdict = keyval_parse("id=666", NULL, &error_abort);
     g_assert_cmpuint(qdict_size(qdict), ==, 1);
     g_assert_cmpstr(qdict_get_try_str(qdict, "id"), ==, "666");
-    QDECREF(qdict);
+    qobject_unref(qdict);
 
     /* Implied value not supported (unlike qemu_opts_parse()) */
     qdict = keyval_parse("an,noaus,noaus=", NULL, &err);
@@ -160,7 +160,7 @@ static void test_keyval_parse(void)
     g_assert_cmpstr(qdict_get_try_str(qdict, "implied"), ==, "an");
     g_assert_cmpstr(qdict_get_try_str(qdict, "aus"), ==, "off");
     g_assert_cmpstr(qdict_get_try_str(qdict, "noaus"), ==, "");
-    QDECREF(qdict);
+    qobject_unref(qdict);
 
     /* Implied dotted key */
     qdict = keyval_parse("val", "eins.zwei", &error_abort);
@@ -169,7 +169,7 @@ static void test_keyval_parse(void)
     g_assert(sub_qdict);
     g_assert_cmpuint(qdict_size(sub_qdict), ==, 1);
     g_assert_cmpstr(qdict_get_try_str(sub_qdict, "zwei"), ==, "val");
-    QDECREF(qdict);
+    qobject_unref(qdict);
 
     /* Implied key with empty value (qemu_opts_parse() accepts this) */
     qdict = keyval_parse(",", "implied", &err);
@@ -198,7 +198,7 @@ static void check_list012(QList *qlist)
         qstr = qobject_to(QString, qlist_pop(qlist));
         g_assert(qstr);
         g_assert_cmpstr(qstring_get_str(qstr), ==, expected[i]);
-        QDECREF(qstr);
+        qobject_unref(qstr);
     }
     g_assert(qlist_empty(qlist));
 }
@@ -218,14 +218,14 @@ static void test_keyval_parse_list(void)
                          NULL, &error_abort);
     g_assert_cmpint(qdict_size(qdict), ==, 1);
     check_list012(qdict_get_qlist(qdict, "list"));
-    QDECREF(qdict);
+    qobject_unref(qdict);
 
     /* Multiple indexes, last one wins */
     qdict = keyval_parse("list.1=goner,list.0=null,list.01=eins,list.2=zwei",
                          NULL, &error_abort);
     g_assert_cmpint(qdict_size(qdict), ==, 1);
     check_list012(qdict_get_qlist(qdict, "list"));
-    QDECREF(qdict);
+    qobject_unref(qdict);
 
     /* List at deeper nesting */
     qdict = keyval_parse("a.list.1=eins,a.list.00=null,a.list.2=zwei",
@@ -234,7 +234,7 @@ static void test_keyval_parse_list(void)
     sub_qdict = qdict_get_qdict(qdict, "a");
     g_assert_cmpint(qdict_size(sub_qdict), ==, 1);
     check_list012(qdict_get_qlist(sub_qdict, "list"));
-    QDECREF(qdict);
+    qobject_unref(qdict);
 
     /* Inconsistent dotted keys: both list and dictionary */
     qdict = keyval_parse("a.b.c=1,a.b.0=2", NULL, &err);
@@ -262,7 +262,7 @@ static void test_keyval_visit_bool(void)
 
     qdict = keyval_parse("bool1=on,bool2=off", NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_bool(v, "bool1", &b, &error_abort);
     g_assert(b);
@@ -274,7 +274,7 @@ static void test_keyval_visit_bool(void)
 
     qdict = keyval_parse("bool1=offer", NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_bool(v, "bool1", &b, &err);
     error_free_or_abort(&err);
@@ -292,7 +292,7 @@ static void test_keyval_visit_number(void)
     /* Lower limit zero */
     qdict = keyval_parse("number1=0", NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_uint64(v, "number1", &u, &error_abort);
     g_assert_cmpuint(u, ==, 0);
@@ -304,7 +304,7 @@ static void test_keyval_visit_number(void)
     qdict = keyval_parse("number1=18446744073709551615,number2=-1",
                          NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_uint64(v, "number1", &u, &error_abort);
     g_assert_cmphex(u, ==, UINT64_MAX);
@@ -318,7 +318,7 @@ static void test_keyval_visit_number(void)
     qdict = keyval_parse("number1=18446744073709551616",
                          NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_uint64(v, "number1", &u, &err);
     error_free_or_abort(&err);
@@ -329,7 +329,7 @@ static void test_keyval_visit_number(void)
     qdict = keyval_parse("number1=-18446744073709551616",
                          NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_uint64(v, "number1", &u, &err);
     error_free_or_abort(&err);
@@ -340,7 +340,7 @@ static void test_keyval_visit_number(void)
     qdict = keyval_parse("number1=0x2a,number2=052",
                          NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_uint64(v, "number1", &u, &error_abort);
     g_assert_cmpuint(u, ==, 42);
@@ -354,7 +354,7 @@ static void test_keyval_visit_number(void)
     qdict = keyval_parse("number1=3.14,number2=08",
                          NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_uint64(v, "number1", &u, &err);
     error_free_or_abort(&err);
@@ -374,7 +374,7 @@ static void test_keyval_visit_size(void)
     /* Lower limit zero */
     qdict = keyval_parse("sz1=0", NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_size(v, "sz1", &sz, &error_abort);
     g_assert_cmpuint(sz, ==, 0);
@@ -390,7 +390,7 @@ static void test_keyval_visit_size(void)
                          "sz3=9007199254740993",
                          NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_size(v, "sz1", &sz, &error_abort);
     g_assert_cmphex(sz, ==, 0x1fffffffffffff);
@@ -407,7 +407,7 @@ static void test_keyval_visit_size(void)
                          "sz2=9223372036854775295", /* 7ffffffffffffdff */
                          NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_size(v, "sz1", &sz, &error_abort);
     g_assert_cmphex(sz, ==, 0x7ffffffffffffc00);
@@ -422,7 +422,7 @@ static void test_keyval_visit_size(void)
                          "sz2=18446744073709550591", /* fffffffffffffbff */
                          NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_size(v, "sz1", &sz, &error_abort);
     g_assert_cmphex(sz, ==, 0xfffffffffffff800);
@@ -437,7 +437,7 @@ static void test_keyval_visit_size(void)
                          "sz2=18446744073709550592", /* fffffffffffffc00 */
                          NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_size(v, "sz1", &sz, &err);
     error_free_or_abort(&err);
@@ -450,7 +450,7 @@ static void test_keyval_visit_size(void)
     qdict = keyval_parse("sz1=8b,sz2=1.5k,sz3=2M,sz4=0.1G,sz5=16777215T",
                          NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_size(v, "sz1", &sz, &error_abort);
     g_assert_cmpuint(sz, ==, 8);
@@ -469,7 +469,7 @@ static void test_keyval_visit_size(void)
     /* Beyond limit with suffix */
     qdict = keyval_parse("sz1=16777216T", NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_size(v, "sz1", &sz, &err);
     error_free_or_abort(&err);
@@ -479,7 +479,7 @@ static void test_keyval_visit_size(void)
     /* Trailing crap */
     qdict = keyval_parse("sz1=16E,sz2=16Gi", NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_size(v, "sz1", &sz, &err);
     error_free_or_abort(&err);
@@ -498,7 +498,7 @@ static void test_keyval_visit_dict(void)
 
     qdict = keyval_parse("a.b.c=1,a.b.c=2,d=3", NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_start_struct(v, "a", NULL, 0, &error_abort);
     visit_start_struct(v, "b", NULL, 0, &error_abort);
@@ -516,7 +516,7 @@ static void test_keyval_visit_dict(void)
 
     qdict = keyval_parse("a.b=", NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_start_struct(v, "a", NULL, 0, &error_abort);
     visit_type_int(v, "c", &i, &err);   /* a.c missing */
@@ -539,7 +539,7 @@ static void test_keyval_visit_list(void)
     qdict = keyval_parse("a.0=,a.1=I,a.2.0=II", NULL, &error_abort);
     /* TODO empty list */
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_start_list(v, "a", NULL, 0, &error_abort);
     visit_type_str(v, NULL, &s, &error_abort);
@@ -562,7 +562,7 @@ static void test_keyval_visit_list(void)
 
     qdict = keyval_parse("a.0=,b.0.0=head", NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_start_list(v, "a", NULL, 0, &error_abort);
     visit_check_list(v, &err);  /* a[0] unexpected */
@@ -591,7 +591,7 @@ static void test_keyval_visit_optional(void)
 
     qdict = keyval_parse("a.b=1", NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_optional(v, "b", &present);
     g_assert(!present);         /* b missing */
@@ -627,7 +627,7 @@ static void test_keyval_visit_alternate(void)
      */
     qdict = keyval_parse("a=1,b=2,c=on", NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_AltStrObj(v, "a", &aso, &error_abort);
     g_assert_cmpint(aso->type, ==, QTYPE_QSTRING);
@@ -651,19 +651,19 @@ static void test_keyval_visit_any(void)
 
     qdict = keyval_parse("a.0=null,a.1=1", NULL, &error_abort);
     v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
-    QDECREF(qdict);
+    qobject_unref(qdict);
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_any(v, "a", &any, &error_abort);
     qlist = qobject_to(QList, any);
     g_assert(qlist);
     qstr = qobject_to(QString, qlist_pop(qlist));
     g_assert_cmpstr(qstring_get_str(qstr), ==, "null");
-    QDECREF(qstr);
+    qobject_unref(qstr);
     qstr = qobject_to(QString, qlist_pop(qlist));
     g_assert_cmpstr(qstring_get_str(qstr), ==, "1");
     g_assert(qlist_empty(qlist));
-    QDECREF(qstr);
-    qobject_decref(any);
+    qobject_unref(qstr);
+    qobject_unref(any);
     visit_check_struct(v, &error_abort);
     visit_end_struct(v, NULL);
     visit_free(v);
diff --git a/tests/test-netfilter.c b/tests/test-netfilter.c
index 95f7839aef..e47075dd06 100644
--- a/tests/test-netfilter.c
+++ b/tests/test-netfilter.c
@@ -29,7 +29,7 @@ static void add_one_netfilter(void)
 
     g_assert(response);
     g_assert(!qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 
     response = qmp("{'execute': 'object-del',"
                    " 'arguments': {"
@@ -37,7 +37,7 @@ static void add_one_netfilter(void)
                    "}}");
     g_assert(response);
     g_assert(!qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 }
 
 /* add a netfilter to a netdev and then remove the netdev */
@@ -57,7 +57,7 @@ static void remove_netdev_with_one_netfilter(void)
 
     g_assert(response);
     g_assert(!qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 
     response = qmp("{'execute': 'netdev_del',"
                    " 'arguments': {"
@@ -65,7 +65,7 @@ static void remove_netdev_with_one_netfilter(void)
                    "}}");
     g_assert(response);
     g_assert(!qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 
     /* add back the netdev */
     response = qmp("{'execute': 'netdev_add',"
@@ -75,7 +75,7 @@ static void remove_netdev_with_one_netfilter(void)
                    "}}");
     g_assert(response);
     g_assert(!qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 }
 
 /* add multi(2) netfilters to a netdev and then remove them */
@@ -95,7 +95,7 @@ static void add_multi_netfilter(void)
 
     g_assert(response);
     g_assert(!qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 
     response = qmp("{'execute': 'object-add',"
                    " 'arguments': {"
@@ -109,7 +109,7 @@ static void add_multi_netfilter(void)
 
     g_assert(response);
     g_assert(!qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 
     response = qmp("{'execute': 'object-del',"
                    " 'arguments': {"
@@ -117,7 +117,7 @@ static void add_multi_netfilter(void)
                    "}}");
     g_assert(response);
     g_assert(!qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 
     response = qmp("{'execute': 'object-del',"
                    " 'arguments': {"
@@ -125,7 +125,7 @@ static void add_multi_netfilter(void)
                    "}}");
     g_assert(response);
     g_assert(!qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 }
 
 /* add multi(2) netfilters to a netdev and then remove the netdev */
@@ -145,7 +145,7 @@ static void remove_netdev_with_multi_netfilter(void)
 
     g_assert(response);
     g_assert(!qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 
     response = qmp("{'execute': 'object-add',"
                    " 'arguments': {"
@@ -159,7 +159,7 @@ static void remove_netdev_with_multi_netfilter(void)
 
     g_assert(response);
     g_assert(!qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 
     response = qmp("{'execute': 'netdev_del',"
                    " 'arguments': {"
@@ -167,7 +167,7 @@ static void remove_netdev_with_multi_netfilter(void)
                    "}}");
     g_assert(response);
     g_assert(!qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 
     /* add back the netdev */
     response = qmp("{'execute': 'netdev_add',"
@@ -177,7 +177,7 @@ static void remove_netdev_with_multi_netfilter(void)
                    "}}");
     g_assert(response);
     g_assert(!qdict_haskey(response, "error"));
-    QDECREF(response);
+    qobject_unref(response);
 }
 
 int main(int argc, char **argv)
diff --git a/tests/test-qemu-opts.c b/tests/test-qemu-opts.c
index 2c422abcd4..77dd72b403 100644
--- a/tests/test-qemu-opts.c
+++ b/tests/test-qemu-opts.c
@@ -887,7 +887,7 @@ static void test_opts_to_qdict_basic(void)
     g_assert_cmpstr(qdict_get_str(dict, "number1"), ==, "42");
     g_assert_false(qdict_haskey(dict, "number2"));
 
-    QDECREF(dict);
+    qobject_unref(dict);
     qemu_opts_del(opts);
 }
 
@@ -914,7 +914,7 @@ static void test_opts_to_qdict_filtered(void)
     g_assert_cmpstr(qdict_get_str(dict, "number1"), ==, "42");
     g_assert_false(qdict_haskey(dict, "number2"));
     g_assert_false(qdict_haskey(dict, "bool1"));
-    QDECREF(dict);
+    qobject_unref(dict);
 
     dict = qemu_opts_to_qdict_filtered(opts, NULL, &opts_list_02, false);
     g_assert(dict != NULL);
@@ -924,7 +924,7 @@ static void test_opts_to_qdict_filtered(void)
     g_assert_false(qdict_haskey(dict, "str3"));
     g_assert_false(qdict_haskey(dict, "number1"));
     g_assert_false(qdict_haskey(dict, "number2"));
-    QDECREF(dict);
+    qobject_unref(dict);
 
     /* Now delete converted options from opts */
     dict = qemu_opts_to_qdict_filtered(opts, NULL, &opts_list_01, true);
@@ -935,7 +935,7 @@ static void test_opts_to_qdict_filtered(void)
     g_assert_cmpstr(qdict_get_str(dict, "number1"), ==, "42");
     g_assert_false(qdict_haskey(dict, "number2"));
     g_assert_false(qdict_haskey(dict, "bool1"));
-    QDECREF(dict);
+    qobject_unref(dict);
 
     dict = qemu_opts_to_qdict_filtered(opts, NULL, &opts_list_02, true);
     g_assert(dict != NULL);
@@ -945,7 +945,7 @@ static void test_opts_to_qdict_filtered(void)
     g_assert_false(qdict_haskey(dict, "str3"));
     g_assert_false(qdict_haskey(dict, "number1"));
     g_assert_false(qdict_haskey(dict, "number2"));
-    QDECREF(dict);
+    qobject_unref(dict);
 
     g_assert_true(QTAILQ_EMPTY(&opts->head));
 
@@ -978,13 +978,13 @@ static void test_opts_to_qdict_duplicates(void)
     dict = qemu_opts_to_qdict(opts, NULL);
     g_assert(dict != NULL);
     g_assert_cmpstr(qdict_get_str(dict, "foo"), ==, "b");
-    QDECREF(dict);
+    qobject_unref(dict);
 
     /* The last one still wins if entries are deleted, and both are deleted */
     dict = qemu_opts_to_qdict_filtered(opts, NULL, NULL, true);
     g_assert(dict != NULL);
     g_assert_cmpstr(qdict_get_str(dict, "foo"), ==, "b");
-    QDECREF(dict);
+    qobject_unref(dict);
 
     g_assert_true(QTAILQ_EMPTY(&opts->head));
 
diff --git a/tests/test-qga.c b/tests/test-qga.c
index e6ab788f31..18e63cb533 100644
--- a/tests/test-qga.c
+++ b/tests/test-qga.c
@@ -180,7 +180,7 @@ static void test_qga_sync_delimited(gconstpointer fix)
     v = qdict_get_int(ret, "return");
     g_assert_cmpint(r, ==, v);
 
-    QDECREF(ret);
+    qobject_unref(ret);
 }
 
 static void test_qga_sync(gconstpointer fix)
@@ -212,7 +212,7 @@ static void test_qga_sync(gconstpointer fix)
     v = qdict_get_int(ret, "return");
     g_assert_cmpint(r, ==, v);
 
-    QDECREF(ret);
+    qobject_unref(ret);
 }
 
 static void test_qga_ping(gconstpointer fix)
@@ -224,7 +224,7 @@ static void test_qga_ping(gconstpointer fix)
     g_assert_nonnull(ret);
     qmp_assert_no_error(ret);
 
-    QDECREF(ret);
+    qobject_unref(ret);
 }
 
 static void test_qga_invalid_args(gconstpointer fix)
@@ -244,7 +244,7 @@ static void test_qga_invalid_args(gconstpointer fix)
     g_assert_cmpstr(class, ==, "GenericError");
     g_assert_cmpstr(desc, ==, "Parameter 'foo' is unexpected");
 
-    QDECREF(ret);
+    qobject_unref(ret);
 }
 
 static void test_qga_invalid_cmd(gconstpointer fix)
@@ -263,7 +263,7 @@ static void test_qga_invalid_cmd(gconstpointer fix)
     g_assert_cmpstr(class, ==, "CommandNotFound");
     g_assert_cmpint(strlen(desc), >, 0);
 
-    QDECREF(ret);
+    qobject_unref(ret);
 }
 
 static void test_qga_info(gconstpointer fix)
@@ -280,7 +280,7 @@ static void test_qga_info(gconstpointer fix)
     version = qdict_get_try_str(val, "version");
     g_assert_cmpstr(version, ==, QEMU_VERSION);
 
-    QDECREF(ret);
+    qobject_unref(ret);
 }
 
 static void test_qga_get_vcpus(gconstpointer fix)
@@ -300,7 +300,7 @@ static void test_qga_get_vcpus(gconstpointer fix)
     g_assert(qdict_haskey(qobject_to(QDict, entry->value), "online"));
     g_assert(qdict_haskey(qobject_to(QDict, entry->value), "logical-id"));
 
-    QDECREF(ret);
+    qobject_unref(ret);
 }
 
 static void test_qga_get_fsinfo(gconstpointer fix)
@@ -324,7 +324,7 @@ static void test_qga_get_fsinfo(gconstpointer fix)
         g_assert(qdict_haskey(qobject_to(QDict, entry->value), "disk"));
     }
 
-    QDECREF(ret);
+    qobject_unref(ret);
 }
 
 static void test_qga_get_memory_block_info(gconstpointer fix)
@@ -344,7 +344,7 @@ static void test_qga_get_memory_block_info(gconstpointer fix)
         g_assert_cmpint(size, >, 0);
     }
 
-    QDECREF(ret);
+    qobject_unref(ret);
 }
 
 static void test_qga_get_memory_blocks(gconstpointer fix)
@@ -369,7 +369,7 @@ static void test_qga_get_memory_blocks(gconstpointer fix)
         }
     }
 
-    QDECREF(ret);
+    qobject_unref(ret);
 }
 
 static void test_qga_network_get_interfaces(gconstpointer fix)
@@ -388,7 +388,7 @@ static void test_qga_network_get_interfaces(gconstpointer fix)
     entry = qlist_first(list);
     g_assert(qdict_haskey(qobject_to(QDict, entry->value), "name"));
 
-    QDECREF(ret);
+    qobject_unref(ret);
 }
 
 static void test_qga_file_ops(gconstpointer fix)
@@ -410,7 +410,7 @@ static void test_qga_file_ops(gconstpointer fix)
     g_assert_nonnull(ret);
     qmp_assert_no_error(ret);
     id = qdict_get_int(ret, "return");
-    QDECREF(ret);
+    qobject_unref(ret);
 
     enc = g_base64_encode(helloworld, sizeof(helloworld));
     /* write */
@@ -426,7 +426,7 @@ static void test_qga_file_ops(gconstpointer fix)
     eof = qdict_get_bool(val, "eof");
     g_assert_cmpint(count, ==, sizeof(helloworld));
     g_assert_cmpint(eof, ==, 0);
-    QDECREF(ret);
+    qobject_unref(ret);
     g_free(cmd);
 
     /* flush */
@@ -434,7 +434,7 @@ static void test_qga_file_ops(gconstpointer fix)
                           " 'arguments': {'handle': %" PRId64 "} }",
                           id);
     ret = qmp_fd(fixture->fd, cmd);
-    QDECREF(ret);
+    qobject_unref(ret);
     g_free(cmd);
 
     /* close */
@@ -442,7 +442,7 @@ static void test_qga_file_ops(gconstpointer fix)
                           " 'arguments': {'handle': %" PRId64 "} }",
                           id);
     ret = qmp_fd(fixture->fd, cmd);
-    QDECREF(ret);
+    qobject_unref(ret);
     g_free(cmd);
 
     /* check content */
@@ -462,7 +462,7 @@ static void test_qga_file_ops(gconstpointer fix)
     g_assert_nonnull(ret);
     qmp_assert_no_error(ret);
     id = qdict_get_int(ret, "return");
-    QDECREF(ret);
+    qobject_unref(ret);
 
     /* read */
     cmd = g_strdup_printf("{'execute': 'guest-file-read',"
@@ -477,7 +477,7 @@ static void test_qga_file_ops(gconstpointer fix)
     g_assert(eof);
     g_assert_cmpstr(b64, ==, enc);
 
-    QDECREF(ret);
+    qobject_unref(ret);
     g_free(cmd);
     g_free(enc);
 
@@ -493,7 +493,7 @@ static void test_qga_file_ops(gconstpointer fix)
     g_assert_cmpint(count, ==, 0);
     g_assert(eof);
     g_assert_cmpstr(b64, ==, "");
-    QDECREF(ret);
+    qobject_unref(ret);
     g_free(cmd);
 
     /* seek */
@@ -508,7 +508,7 @@ static void test_qga_file_ops(gconstpointer fix)
     eof = qdict_get_bool(val, "eof");
     g_assert_cmpint(count, ==, 6);
     g_assert(!eof);
-    QDECREF(ret);
+    qobject_unref(ret);
     g_free(cmd);
 
     /* partial read */
@@ -527,7 +527,7 @@ static void test_qga_file_ops(gconstpointer fix)
     g_assert_cmpmem(dec, count, helloworld + 6, sizeof(helloworld) - 6);
     g_free(dec);
 
-    QDECREF(ret);
+    qobject_unref(ret);
     g_free(cmd);
 
     /* close */
@@ -535,7 +535,7 @@ static void test_qga_file_ops(gconstpointer fix)
                           " 'arguments': {'handle': %" PRId64 "} }",
                           id);
     ret = qmp_fd(fixture->fd, cmd);
-    QDECREF(ret);
+    qobject_unref(ret);
     g_free(cmd);
 }
 
@@ -555,7 +555,7 @@ static void test_qga_file_write_read(gconstpointer fix)
     g_assert_nonnull(ret);
     qmp_assert_no_error(ret);
     id = qdict_get_int(ret, "return");
-    QDECREF(ret);
+    qobject_unref(ret);
 
     enc = g_base64_encode(helloworld, sizeof(helloworld));
     /* write */
@@ -571,7 +571,7 @@ static void test_qga_file_write_read(gconstpointer fix)
     eof = qdict_get_bool(val, "eof");
     g_assert_cmpint(count, ==, sizeof(helloworld));
     g_assert_cmpint(eof, ==, 0);
-    QDECREF(ret);
+    qobject_unref(ret);
     g_free(cmd);
 
     /* read (check implicit flush) */
@@ -586,7 +586,7 @@ static void test_qga_file_write_read(gconstpointer fix)
     g_assert_cmpint(count, ==, 0);
     g_assert(eof);
     g_assert_cmpstr(b64, ==, "");
-    QDECREF(ret);
+    qobject_unref(ret);
     g_free(cmd);
 
     /* seek to 0 */
@@ -601,7 +601,7 @@ static void test_qga_file_write_read(gconstpointer fix)
     eof = qdict_get_bool(val, "eof");
     g_assert_cmpint(count, ==, 0);
     g_assert(!eof);
-    QDECREF(ret);
+    qobject_unref(ret);
     g_free(cmd);
 
     /* read */
@@ -616,7 +616,7 @@ static void test_qga_file_write_read(gconstpointer fix)
     g_assert_cmpint(count, ==, sizeof(helloworld));
     g_assert(eof);
     g_assert_cmpstr(b64, ==, enc);
-    QDECREF(ret);
+    qobject_unref(ret);
     g_free(cmd);
     g_free(enc);
 
@@ -625,7 +625,7 @@ static void test_qga_file_write_read(gconstpointer fix)
                           " 'arguments': {'handle': %" PRId64 "} }",
                           id);
     ret = qmp_fd(fixture->fd, cmd);
-    QDECREF(ret);
+    qobject_unref(ret);
     g_free(cmd);
 }
 
@@ -642,7 +642,7 @@ static void test_qga_get_time(gconstpointer fix)
     time = qdict_get_int(ret, "return");
     g_assert_cmpint(time, >, 0);
 
-    QDECREF(ret);
+    qobject_unref(ret);
 }
 
 static void test_qga_blacklist(gconstpointer data)
@@ -661,7 +661,7 @@ static void test_qga_blacklist(gconstpointer data)
     desc = qdict_get_try_str(error, "desc");
     g_assert_cmpstr(class, ==, "GenericError");
     g_assert_nonnull(g_strstr_len(desc, -1, "has been disabled"));
-    QDECREF(ret);
+    qobject_unref(ret);
 
     ret = qmp_fd(fix.fd, "{'execute': 'guest-get-time'}");
     g_assert_nonnull(ret);
@@ -670,12 +670,12 @@ static void test_qga_blacklist(gconstpointer data)
     desc = qdict_get_try_str(error, "desc");
     g_assert_cmpstr(class, ==, "GenericError");
     g_assert_nonnull(g_strstr_len(desc, -1, "has been disabled"));
-    QDECREF(ret);
+    qobject_unref(ret);
 
     /* check something work */
     ret = qmp_fd(fix.fd, "{'execute': 'guest-get-fsinfo'}");
     qmp_assert_no_error(ret);
-    QDECREF(ret);
+    qobject_unref(ret);
 
     fixture_tear_down(&fix, NULL);
 }
@@ -772,7 +772,7 @@ static void test_qga_fsfreeze_status(gconstpointer fix)
     status = qdict_get_try_str(ret, "return");
     g_assert_cmpstr(status, ==, "thawed");
 
-    QDECREF(ret);
+    qobject_unref(ret);
 }
 
 static void test_qga_guest_exec(gconstpointer fix)
@@ -795,7 +795,7 @@ static void test_qga_guest_exec(gconstpointer fix)
     val = qdict_get_qdict(ret, "return");
     pid = qdict_get_int(val, "pid");
     g_assert_cmpint(pid, >, 0);
-    QDECREF(ret);
+    qobject_unref(ret);
 
     /* wait for completion */
     now = g_get_monotonic_time();
@@ -807,7 +807,7 @@ static void test_qga_guest_exec(gconstpointer fix)
         val = qdict_get_qdict(ret, "return");
         exited = qdict_get_bool(val, "exited");
         if (!exited) {
-            QDECREF(ret);
+            qobject_unref(ret);
         }
     } while (!exited &&
              g_get_monotonic_time() < now + 5 * G_TIME_SPAN_SECOND);
@@ -822,7 +822,7 @@ static void test_qga_guest_exec(gconstpointer fix)
     g_assert_cmpint(len, ==, 12);
     g_assert_cmpstr((char *)decoded, ==, "\" test_str \"");
     g_free(decoded);
-    QDECREF(ret);
+    qobject_unref(ret);
 }
 
 static void test_qga_guest_exec_invalid(gconstpointer fix)
@@ -841,7 +841,7 @@ static void test_qga_guest_exec_invalid(gconstpointer fix)
     desc = qdict_get_str(error, "desc");
     g_assert_cmpstr(class, ==, "GenericError");
     g_assert_cmpint(strlen(desc), >, 0);
-    QDECREF(ret);
+    qobject_unref(ret);
 
     /* invalid pid */
     ret = qmp_fd(fixture->fd, "{'execute': 'guest-exec-status',"
@@ -853,7 +853,7 @@ static void test_qga_guest_exec_invalid(gconstpointer fix)
     desc = qdict_get_str(error, "desc");
     g_assert_cmpstr(class, ==, "GenericError");
     g_assert_cmpint(strlen(desc), >, 0);
-    QDECREF(ret);
+    qobject_unref(ret);
 }
 
 static void test_qga_guest_get_osinfo(gconstpointer data)
@@ -905,7 +905,7 @@ static void test_qga_guest_get_osinfo(gconstpointer data)
     g_assert_nonnull(str);
     g_assert_cmpstr(str, ==, "unit-test");
 
-    QDECREF(ret);
+    qobject_unref(ret);
     g_free(env[0]);
     fixture_tear_down(&fixture, NULL);
 }
diff --git a/tests/test-qmp-cmds.c b/tests/test-qmp-cmds.c
index db690cc5ae..e0ed461f58 100644
--- a/tests/test-qmp-cmds.c
+++ b/tests/test-qmp-cmds.c
@@ -106,8 +106,8 @@ static void test_dispatch_cmd(void)
     assert(resp != NULL);
     assert(!qdict_haskey(qobject_to(QDict, resp), "error"));
 
-    qobject_decref(resp);
-    QDECREF(req);
+    qobject_unref(resp);
+    qobject_unref(req);
 }
 
 /* test commands that return an error due to invalid parameters */
@@ -123,8 +123,8 @@ static void test_dispatch_cmd_failure(void)
     assert(resp != NULL);
     assert(qdict_haskey(qobject_to(QDict, resp), "error"));
 
-    qobject_decref(resp);
-    QDECREF(req);
+    qobject_unref(resp);
+    qobject_unref(req);
 
     /* check that with extra arguments it throws an error */
     req = qdict_new();
@@ -137,8 +137,8 @@ static void test_dispatch_cmd_failure(void)
     assert(resp != NULL);
     assert(qdict_haskey(qobject_to(QDict, resp), "error"));
 
-    qobject_decref(resp);
-    QDECREF(req);
+    qobject_unref(resp);
+    qobject_unref(req);
 }
 
 static QObject *test_qmp_dispatch(QDict *req)
@@ -153,8 +153,8 @@ static QObject *test_qmp_dispatch(QDict *req)
     assert(resp && !qdict_haskey(resp, "error"));
     ret = qdict_get(resp, "return");
     assert(ret);
-    qobject_incref(ret);
-    qobject_decref(resp_obj);
+    qobject_ref(ret);
+    qobject_unref(resp_obj);
     return ret;
 }
 
@@ -195,7 +195,7 @@ static void test_dispatch_cmd_io(void)
     assert(qdict_get_int(ret_dict_dict2_userdef, "integer") == 422);
     assert(!strcmp(qdict_get_str(ret_dict_dict2_userdef, "string"), "hello2"));
     assert(!strcmp(qdict_get_str(ret_dict_dict2, "string"), "blah4"));
-    QDECREF(ret);
+    qobject_unref(ret);
 
     qdict_put_int(args3, "a", 66);
     qdict_put(req, "arguments", args3);
@@ -204,9 +204,9 @@ static void test_dispatch_cmd_io(void)
     ret3 = qobject_to(QNum, test_qmp_dispatch(req));
     g_assert(qnum_get_try_int(ret3, &val));
     g_assert_cmpint(val, ==, 66);
-    QDECREF(ret3);
+    qobject_unref(ret3);
 
-    QDECREF(req);
+    qobject_unref(req);
 }
 
 /* test generated dealloc functions for generated types */
@@ -257,7 +257,7 @@ static void test_dealloc_partial(void)
         v = qobject_input_visitor_new(QOBJECT(ud2_dict));
         visit_type_UserDefTwo(v, NULL, &ud2, &err);
         visit_free(v);
-        QDECREF(ud2_dict);
+        qobject_unref(ud2_dict);
     }
 
     /* verify that visit_type_XXX() cleans up properly on error */
diff --git a/tests/test-qmp-event.c b/tests/test-qmp-event.c
index bb1036615f..3a7c227a1d 100644
--- a/tests/test-qmp-event.c
+++ b/tests/test-qmp-event.c
@@ -133,7 +133,7 @@ static void event_prepare(TestEventData *data,
 static void event_teardown(TestEventData *data,
                            const void *unused)
 {
-    QDECREF(data->expect);
+    qobject_unref(data->expect);
     test_event_data = NULL;
 
     g_mutex_unlock(&test_event_lock);
diff --git a/tests/test-qobject-input-visitor.c b/tests/test-qobject-input-visitor.c
index 6dc59c6211..0f4d234c3f 100644
--- a/tests/test-qobject-input-visitor.c
+++ b/tests/test-qobject-input-visitor.c
@@ -35,7 +35,7 @@ typedef struct TestInputVisitorData {
 static void visitor_input_teardown(TestInputVisitorData *data,
                                    const void *unused)
 {
-    qobject_decref(data->obj);
+    qobject_unref(data->obj);
     data->obj = NULL;
 
     if (data->qiv) {
@@ -483,7 +483,7 @@ static void test_visitor_in_any(TestInputVisitorData *data,
     g_assert(qnum);
     g_assert(qnum_get_try_int(qnum, &val));
     g_assert_cmpint(val, ==, -42);
-    qobject_decref(res);
+    qobject_unref(res);
 
     v = visitor_input_test_init(data, "{ 'integer': -42, 'boolean': true, 'string': 'foo' }");
     visit_type_any(v, NULL, &res, &error_abort);
@@ -505,7 +505,7 @@ static void test_visitor_in_any(TestInputVisitorData *data,
     qstring = qobject_to(QString, qobj);
     g_assert(qstring);
     g_assert_cmpstr(qstring_get_str(qstring), ==, "foo");
-    qobject_decref(res);
+    qobject_unref(res);
 }
 
 static void test_visitor_in_null(TestInputVisitorData *data,
@@ -530,7 +530,7 @@ static void test_visitor_in_null(TestInputVisitorData *data,
     visit_start_struct(v, NULL, NULL, 0, &error_abort);
     visit_type_null(v, "a", &null, &error_abort);
     g_assert(qobject_type(QOBJECT(null)) == QTYPE_QNULL);
-    QDECREF(null);
+    qobject_unref(null);
     visit_type_null(v, "b", &null, &err);
     error_free_or_abort(&err);
     g_assert(!null);
@@ -1262,7 +1262,7 @@ static void do_test_visitor_in_qmp_introspect(TestInputVisitorData *data,
     g_assert(schema);
 
     qapi_free_SchemaInfoList(schema);
-    qobject_decref(obj);
+    qobject_unref(obj);
     visit_free(v);
 }
 
diff --git a/tests/test-qobject-output-visitor.c b/tests/test-qobject-output-visitor.c
index ecf21c0f31..be635854b4 100644
--- a/tests/test-qobject-output-visitor.c
+++ b/tests/test-qobject-output-visitor.c
@@ -40,7 +40,7 @@ static void visitor_output_teardown(TestOutputVisitorData *data,
 {
     visit_free(data->ov);
     data->ov = NULL;
-    qobject_decref(data->obj);
+    qobject_unref(data->obj);
     data->obj = NULL;
 }
 
@@ -346,7 +346,7 @@ static void test_visitor_out_any(TestOutputVisitorData *data,
     g_assert(qnum);
     g_assert(qnum_get_try_int(qnum, &val));
     g_assert_cmpint(val, ==, -42);
-    qobject_decref(qobj);
+    qobject_unref(qobj);
 
     visitor_reset(data);
     qdict = qdict_new();
@@ -355,7 +355,7 @@ static void test_visitor_out_any(TestOutputVisitorData *data,
     qdict_put_str(qdict, "string", "foo");
     qobj = QOBJECT(qdict);
     visit_type_any(data->ov, NULL, &qobj, &error_abort);
-    qobject_decref(qobj);
+    qobject_unref(qobj);
     qdict = qobject_to(QDict, visitor_get(data));
     g_assert(qdict);
     qnum = qobject_to(QNum, qdict_get(qdict, "integer"));
@@ -630,7 +630,7 @@ static void check_native_list(QObject *qobj,
             qvalue = qobject_to(QNum, tmp);
             g_assert(qnum_get_try_uint(qvalue, &val));
             g_assert_cmpint(val, ==, i);
-            qobject_decref(qlist_pop(qlist));
+            qobject_unref(qlist_pop(qlist));
         }
         break;
 
@@ -654,7 +654,7 @@ static void check_native_list(QObject *qobj,
             qvalue = qobject_to(QNum, tmp);
             g_assert(qnum_get_try_int(qvalue, &val));
             g_assert_cmpint(val, ==, i);
-            qobject_decref(qlist_pop(qlist));
+            qobject_unref(qlist_pop(qlist));
         }
         break;
     case USER_DEF_NATIVE_LIST_UNION_KIND_BOOLEAN:
@@ -665,7 +665,7 @@ static void check_native_list(QObject *qobj,
             g_assert(tmp);
             qvalue = qobject_to(QBool, tmp);
             g_assert_cmpint(qbool_get_bool(qvalue), ==, i % 3 == 0);
-            qobject_decref(qlist_pop(qlist));
+            qobject_unref(qlist_pop(qlist));
         }
         break;
     case USER_DEF_NATIVE_LIST_UNION_KIND_STRING:
@@ -678,7 +678,7 @@ static void check_native_list(QObject *qobj,
             qvalue = qobject_to(QString, tmp);
             sprintf(str, "%d", i);
             g_assert_cmpstr(qstring_get_str(qvalue), ==, str);
-            qobject_decref(qlist_pop(qlist));
+            qobject_unref(qlist_pop(qlist));
         }
         break;
     case USER_DEF_NATIVE_LIST_UNION_KIND_NUMBER:
@@ -695,7 +695,7 @@ static void check_native_list(QObject *qobj,
             g_string_printf(double_actual, "%.6f", qnum_get_double(qvalue));
             g_assert_cmpstr(double_actual->str, ==, double_expected->str);
 
-            qobject_decref(qlist_pop(qlist));
+            qobject_unref(qlist_pop(qlist));
             g_string_free(double_expected, true);
             g_string_free(double_actual, true);
         }
@@ -703,7 +703,7 @@ static void check_native_list(QObject *qobj,
     default:
         g_assert_not_reached();
     }
-    QDECREF(qlist);
+    qobject_unref(qlist);
 }
 
 static void test_native_list(TestOutputVisitorData *data,
diff --git a/tests/test-visitor-serialization.c b/tests/test-visitor-serialization.c
index d18d90db2c..1c5a8b94ea 100644
--- a/tests/test-visitor-serialization.c
+++ b/tests/test-visitor-serialization.c
@@ -1036,10 +1036,10 @@ static void qmp_deserialize(void **native_out, void *datap,
     output_json = qobject_to_json(obj_orig);
     obj = qobject_from_json(qstring_get_str(output_json), &error_abort);
 
-    QDECREF(output_json);
+    qobject_unref(output_json);
     d->qiv = qobject_input_visitor_new(obj);
-    qobject_decref(obj_orig);
-    qobject_decref(obj);
+    qobject_unref(obj_orig);
+    qobject_unref(obj);
     visit(d->qiv, native_out, errp);
 }
 
diff --git a/tests/test-x86-cpuid-compat.c b/tests/test-x86-cpuid-compat.c
index 02e41843fc..84ce9c71ae 100644
--- a/tests/test-x86-cpuid-compat.c
+++ b/tests/test-x86-cpuid-compat.c
@@ -19,7 +19,7 @@ static char *get_cpu0_qom_path(void)
 
     cpu0 = qobject_to(QDict, qlist_peek(ret));
     path = g_strdup(qdict_get_str(cpu0, "qom_path"));
-    QDECREF(resp);
+    qobject_unref(resp);
     return path;
 }
 
@@ -30,8 +30,8 @@ static QObject *qom_get(const char *path, const char *prop)
                       "                 'property': %s } }",
                       path, prop);
     QObject *ret = qdict_get(resp, "return");
-    qobject_incref(ret);
-    QDECREF(resp);
+    qobject_ref(ret);
+    qobject_unref(resp);
     return ret;
 }
 
@@ -41,7 +41,7 @@ static bool qom_get_bool(const char *path, const char *prop)
     QBool *value = qobject_to(QBool, qom_get(path, prop));
     bool b = qbool_get_bool(value);
 
-    QDECREF(value);
+    qobject_unref(value);
     return b;
 }
 #endif
@@ -66,7 +66,7 @@ static void test_cpuid_prop(const void *data)
     g_assert_cmpint(val, ==, args->expected_value);
     qtest_end();
 
-    QDECREF(value);
+    qobject_unref(value);
     g_free(path);
 }
 
@@ -142,8 +142,8 @@ static void test_feature_flag(const void *data)
 
     g_assert(!!(value & (1U << args->bitnr)) == args->expected_value);
 
-    QDECREF(present);
-    QDECREF(filtered);
+    qobject_unref(present);
+    qobject_unref(filtered);
     g_free(path);
 }
 
diff --git a/tests/tmp105-test.c b/tests/tmp105-test.c
index 66c7a0147f..d093cffe1e 100644
--- a/tests/tmp105-test.c
+++ b/tests/tmp105-test.c
@@ -74,7 +74,7 @@ static int qmp_tmp105_get_temperature(const char *id)
                    "'property': 'temperature' } }", id);
     g_assert(qdict_haskey(response, "return"));
     ret = qdict_get_int(response, "return");
-    QDECREF(response);
+    qobject_unref(response);
     return ret;
 }
 
@@ -85,7 +85,7 @@ static void qmp_tmp105_set_temperature(const char *id, int value)
     response = qmp("{ 'execute': 'qom-set', 'arguments': { 'path': %s, "
                    "'property': 'temperature', 'value': %d } }", id, value);
     g_assert(qdict_haskey(response, "return"));
-    QDECREF(response);
+    qobject_unref(response);
 }
 
 #define TMP105_PRECISION (1000/16)
diff --git a/tests/vhost-user-test.c b/tests/vhost-user-test.c
index 61d997253c..bbc8091286 100644
--- a/tests/vhost-user-test.c
+++ b/tests/vhost-user-test.c
@@ -727,7 +727,7 @@ static void test_migrate(void)
     rsp = qmp("{ 'execute': 'migrate_set_speed',"
               "'arguments': { 'value': 10 } }");
     g_assert(qdict_haskey(rsp, "return"));
-    QDECREF(rsp);
+    qobject_unref(rsp);
 
     cmd = g_strdup_printf("{ 'execute': 'migrate',"
                           "'arguments': { 'uri': '%s' } }",
@@ -735,7 +735,7 @@ static void test_migrate(void)
     rsp = qmp(cmd);
     g_free(cmd);
     g_assert(qdict_haskey(rsp, "return"));
-    QDECREF(rsp);
+    qobject_unref(rsp);
 
     wait_for_log_fd(s);
 
@@ -751,7 +751,7 @@ static void test_migrate(void)
     rsp = qmp("{ 'execute': 'migrate_set_speed',"
               "'arguments': { 'value': 0 } }");
     g_assert(qdict_haskey(rsp, "return"));
-    QDECREF(rsp);
+    qobject_unref(rsp);
 
     qmp_eventwait("STOP");
 
diff --git a/tests/virtio-net-test.c b/tests/virtio-net-test.c
index 0a3c5dd257..b285a262e9 100644
--- a/tests/virtio-net-test.c
+++ b/tests/virtio-net-test.c
@@ -173,7 +173,7 @@ static void rx_stop_cont_test(QVirtioDevice *dev,
     qvirtqueue_kick(dev, vq, free_head);
 
     rsp = qmp("{ 'execute' : 'stop'}");
-    QDECREF(rsp);
+    qobject_unref(rsp);
 
     ret = iov_send(socket, iov, 2, 0, sizeof(len) + sizeof(test));
     g_assert_cmpint(ret, ==, sizeof(test) + sizeof(len));
@@ -182,9 +182,9 @@ static void rx_stop_cont_test(QVirtioDevice *dev,
      * ensure the packet data gets queued in QEMU, before we do 'cont'.
      */
     rsp = qmp("{ 'execute' : 'query-status'}");
-    QDECREF(rsp);
+    qobject_unref(rsp);
     rsp = qmp("{ 'execute' : 'cont'}");
-    QDECREF(rsp);
+    qobject_unref(rsp);
 
     qvirtio_wait_used_elem(dev, vq, free_head, NULL, QVIRTIO_NET_TIMEOUT_US);
     memread(req_addr + VNET_HDR_SIZE, buffer, sizeof(test));
diff --git a/tests/vmgenid-test.c b/tests/vmgenid-test.c
index 2ec274e37c..8d915c610c 100644
--- a/tests/vmgenid-test.c
+++ b/tests/vmgenid-test.c
@@ -125,7 +125,7 @@ static void read_guid_from_monitor(QemuUUID *guid)
         guid_str = qdict_get_str(rsp_ret, "guid");
         g_assert(qemu_uuid_parse(guid_str, guid) == 0);
     }
-    QDECREF(rsp);
+    qobject_unref(rsp);
 }
 
 static char disk[] = "tests/vmgenid-test-disk-XXXXXX";
diff --git a/tests/wdt_ib700-test.c b/tests/wdt_ib700-test.c
index 3b5bbcf007..797288d939 100644
--- a/tests/wdt_ib700-test.c
+++ b/tests/wdt_ib700-test.c
@@ -16,7 +16,7 @@ static void qmp_check_no_event(QTestState *s)
 {
     QDict *resp = qtest_qmp(s, "{'execute':'query-status'}");
     g_assert(qdict_haskey(resp, "return"));
-    QDECREF(resp);
+    qobject_unref(resp);
 }
 
 static QDict *ib700_program_and_wait(QTestState *s)
@@ -48,8 +48,8 @@ static QDict *ib700_program_and_wait(QTestState *s)
     qtest_clock_step(s, 2 * NANOSECONDS_PER_SECOND);
     event = qtest_qmp_eventwait_ref(s, "WATCHDOG");
     data = qdict_get_qdict(event, "data");
-    QINCREF(data);
-    QDECREF(event);
+    qobject_ref(data);
+    qobject_unref(event);
     return data;
 }
 
@@ -62,7 +62,7 @@ static void ib700_pause(void)
     qtest_irq_intercept_in(s, "ioapic");
     d = ib700_program_and_wait(s);
     g_assert(!strcmp(qdict_get_str(d, "action"), "pause"));
-    QDECREF(d);
+    qobject_unref(d);
     qtest_qmp_eventwait(s, "STOP");
     qtest_quit(s);
 }
@@ -75,7 +75,7 @@ static void ib700_reset(void)
     qtest_irq_intercept_in(s, "ioapic");
     d = ib700_program_and_wait(s);
     g_assert(!strcmp(qdict_get_str(d, "action"), "reset"));
-    QDECREF(d);
+    qobject_unref(d);
     qtest_qmp_eventwait(s, "RESET");
     qtest_quit(s);
 }
@@ -89,7 +89,7 @@ static void ib700_shutdown(void)
     qtest_irq_intercept_in(s, "ioapic");
     d = ib700_program_and_wait(s);
     g_assert(!strcmp(qdict_get_str(d, "action"), "reset"));
-    QDECREF(d);
+    qobject_unref(d);
     qtest_qmp_eventwait(s, "SHUTDOWN");
     qtest_quit(s);
 }
@@ -102,7 +102,7 @@ static void ib700_none(void)
     qtest_irq_intercept_in(s, "ioapic");
     d = ib700_program_and_wait(s);
     g_assert(!strcmp(qdict_get_str(d, "action"), "none"));
-    QDECREF(d);
+    qobject_unref(d);
     qtest_quit(s);
 }