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authorPeter Maydell <peter.maydell@linaro.org>2021-03-14 15:13:53 +0000
committerPeter Maydell <peter.maydell@linaro.org>2021-03-14 15:13:53 +0000
commit757acb9a8295e8be4a37b2cfc1cd947e357fd29c (patch)
tree881fdcb812a8b8d067d5cb59832b3bb31ce9bcf9 /tests/unit/test-bitmap.c
parent6f8a81fc296535f73c48cf9563862e088cc71c57 (diff)
parent33bf47291ed575847d7de26b503c50e72f5aa6c3 (diff)
downloadfocaccia-qemu-757acb9a8295e8be4a37b2cfc1cd947e357fd29c.tar.gz
focaccia-qemu-757acb9a8295e8be4a37b2cfc1cd947e357fd29c.zip
Merge remote-tracking branch 'remotes/thuth-gitlab/tags/pull-request-2021-03-12' into staging
* Move unit and bench tests into separate directories
* Clean-up and improve gitlab-ci jobs
* Drop the non-working "check-speed" makefile target
* Minor documentation updates

# gpg: Signature made Fri 12 Mar 2021 17:18:45 GMT
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/thuth-gitlab/tags/pull-request-2021-03-12:
  README: Add Documentation blurb
  MAINTAINERS: Merge the Gitlab-CI section into the generic CI section
  tests: remove "make check-speed" in favor of "make bench"
  gitlab-ci.yml: Merge check-crypto-old jobs into the build-crypto-old jobs
  gitlab-ci.yml: Merge one of the coroutine jobs with the tcg-disabled job
  gitlab-ci.yml: Add some missing dependencies to the jobs
  gitlab-ci.yml: Move build-tools-and-docs-debian to a better place
  tests: Move benchmarks into a separate folder
  tests: Move unit tests into a separate directory

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'tests/unit/test-bitmap.c')
-rw-r--r--tests/unit/test-bitmap.c138
1 files changed, 138 insertions, 0 deletions
diff --git a/tests/unit/test-bitmap.c b/tests/unit/test-bitmap.c
new file mode 100644
index 0000000000..8db4f67883
--- /dev/null
+++ b/tests/unit/test-bitmap.c
@@ -0,0 +1,138 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * Bitmap.c unit-tests.
+ *
+ * Copyright (C) 2019, Red Hat, Inc.
+ *
+ * Author: Peter Xu <peterx@redhat.com>
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/bitmap.h"
+
+#define BMAP_SIZE  1024
+
+static void check_bitmap_copy_with_offset(void)
+{
+    unsigned long *bmap1, *bmap2, *bmap3, total;
+
+    bmap1 = bitmap_new(BMAP_SIZE);
+    bmap2 = bitmap_new(BMAP_SIZE);
+    bmap3 = bitmap_new(BMAP_SIZE);
+
+    bmap1[0] = g_test_rand_int();
+    bmap1[1] = g_test_rand_int();
+    bmap1[2] = g_test_rand_int();
+    bmap1[3] = g_test_rand_int();
+    total = BITS_PER_LONG * 4;
+
+    /* Shift 115 bits into bmap2 */
+    bitmap_copy_with_dst_offset(bmap2, bmap1, 115, total);
+    /* Shift another 85 bits into bmap3 */
+    bitmap_copy_with_dst_offset(bmap3, bmap2, 85, total + 115);
+    /* Shift back 200 bits back */
+    bitmap_copy_with_src_offset(bmap2, bmap3, 200, total);
+
+    g_assert_cmpmem(bmap1, total / BITS_PER_LONG,
+                    bmap2, total / BITS_PER_LONG);
+
+    bitmap_clear(bmap1, 0, BMAP_SIZE);
+    /* Set bits in bmap1 are 100-245 */
+    bitmap_set(bmap1, 100, 145);
+
+    /* Set bits in bmap2 are 60-205 */
+    bitmap_copy_with_src_offset(bmap2, bmap1, 40, 250);
+    g_assert_cmpint(find_first_bit(bmap2, 60), ==, 60);
+    g_assert_cmpint(find_next_zero_bit(bmap2, 205, 60), ==, 205);
+    g_assert(test_bit(205, bmap2) == 0);
+
+    /* Set bits in bmap3 are 135-280 */
+    bitmap_copy_with_dst_offset(bmap3, bmap1, 35, 250);
+    g_assert_cmpint(find_first_bit(bmap3, 135), ==, 135);
+    g_assert_cmpint(find_next_zero_bit(bmap3, 280, 135), ==, 280);
+    g_assert(test_bit(280, bmap3) == 0);
+
+    g_free(bmap1);
+    g_free(bmap2);
+    g_free(bmap3);
+}
+
+typedef void (*bmap_set_func)(unsigned long *map, long i, long len);
+static void bitmap_set_case(bmap_set_func set_func)
+{
+    unsigned long *bmap;
+    int offset;
+
+    bmap = bitmap_new(BMAP_SIZE);
+
+    /* Set one bit at offset in second word */
+    for (offset = 0; offset <= BITS_PER_LONG; offset++) {
+        bitmap_clear(bmap, 0, BMAP_SIZE);
+        set_func(bmap, BITS_PER_LONG + offset, 1);
+        g_assert_cmpint(find_first_bit(bmap, 2 * BITS_PER_LONG),
+                        ==, BITS_PER_LONG + offset);
+        g_assert_cmpint(find_next_zero_bit(bmap,
+                                           3 * BITS_PER_LONG,
+                                           BITS_PER_LONG + offset),
+                        ==, BITS_PER_LONG + offset + 1);
+    }
+
+    /* Both Aligned, set bits [BITS_PER_LONG, 3*BITS_PER_LONG] */
+    set_func(bmap, BITS_PER_LONG, 2 * BITS_PER_LONG);
+    g_assert_cmpuint(bmap[1], ==, -1ul);
+    g_assert_cmpuint(bmap[2], ==, -1ul);
+    g_assert_cmpint(find_first_bit(bmap, BITS_PER_LONG), ==, BITS_PER_LONG);
+    g_assert_cmpint(find_next_zero_bit(bmap, 3 * BITS_PER_LONG, BITS_PER_LONG),
+                    ==, 3 * BITS_PER_LONG);
+
+    for (offset = 0; offset <= BITS_PER_LONG; offset++) {
+        bitmap_clear(bmap, 0, BMAP_SIZE);
+        /* End Aligned, set bits [BITS_PER_LONG - offset, 3*BITS_PER_LONG] */
+        set_func(bmap, BITS_PER_LONG - offset, 2 * BITS_PER_LONG + offset);
+        g_assert_cmpuint(bmap[1], ==, -1ul);
+        g_assert_cmpuint(bmap[2], ==, -1ul);
+        g_assert_cmpint(find_first_bit(bmap, BITS_PER_LONG),
+                        ==, BITS_PER_LONG - offset);
+        g_assert_cmpint(find_next_zero_bit(bmap,
+                                           3 * BITS_PER_LONG,
+                                           BITS_PER_LONG - offset),
+                        ==, 3 * BITS_PER_LONG);
+    }
+
+    for (offset = 0; offset <= BITS_PER_LONG; offset++) {
+        bitmap_clear(bmap, 0, BMAP_SIZE);
+        /* Start Aligned, set bits [BITS_PER_LONG, 3*BITS_PER_LONG + offset] */
+        set_func(bmap, BITS_PER_LONG, 2 * BITS_PER_LONG + offset);
+        g_assert_cmpuint(bmap[1], ==, -1ul);
+        g_assert_cmpuint(bmap[2], ==, -1ul);
+        g_assert_cmpint(find_first_bit(bmap, BITS_PER_LONG),
+                        ==, BITS_PER_LONG);
+        g_assert_cmpint(find_next_zero_bit(bmap,
+                                           3 * BITS_PER_LONG + offset,
+                                           BITS_PER_LONG),
+                        ==, 3 * BITS_PER_LONG + offset);
+    }
+
+    g_free(bmap);
+}
+
+static void check_bitmap_set(void)
+{
+    bitmap_set_case(bitmap_set);
+    bitmap_set_case(bitmap_set_atomic);
+}
+
+int main(int argc, char **argv)
+{
+    g_test_init(&argc, &argv, NULL);
+
+    g_test_add_func("/bitmap/bitmap_copy_with_offset",
+                    check_bitmap_copy_with_offset);
+    g_test_add_func("/bitmap/bitmap_set",
+                    check_bitmap_set);
+
+    g_test_run();
+
+    return 0;
+}