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-rw-r--r--tests/test-char.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/tests/test-char.c b/tests/test-char.c
index 1880d36783..5905d31441 100644
--- a/tests/test-char.c
+++ b/tests/test-char.c
@@ -214,6 +214,10 @@ static void char_mux_test(void)
     g_assert_cmpint(h2.last_event, ==, -1);
 
     /* switch focus */
+    qemu_chr_be_write(base, (void *)"\1b", 2);
+    g_assert_cmpint(h1.last_event, ==, 42);
+    g_assert_cmpint(h2.last_event, ==, CHR_EVENT_BREAK);
+
     qemu_chr_be_write(base, (void *)"\1c", 2);
     g_assert_cmpint(h1.last_event, ==, CHR_EVENT_MUX_IN);
     g_assert_cmpint(h2.last_event, ==, CHR_EVENT_MUX_OUT);
@@ -227,6 +231,10 @@ static void char_mux_test(void)
     g_assert_cmpstr(h1.read_buf, ==, "hello");
     h1.read_count = 0;
 
+    qemu_chr_be_write(base, (void *)"\1b", 2);
+    g_assert_cmpint(h1.last_event, ==, CHR_EVENT_BREAK);
+    g_assert_cmpint(h2.last_event, ==, CHR_EVENT_MUX_OUT);
+
     /* remove first handler */
     qemu_chr_fe_set_handlers(&chr_be1, NULL, NULL, NULL, NULL,
                              NULL, NULL, true);