From 2071f26e2d67fa385c2baf061137b7482ace270c Mon Sep 17 00:00:00 2001 From: Fam Zheng Date: Thu, 13 Oct 2016 17:58:29 -0400 Subject: [PATCH] tests: Add test code for hbitmap serialization Signed-off-by: Fam Zheng [Fixed minor constant issue. --js] Signed-off-by: John Snow Signed-off-by: John Snow Message-id: 1476395910-8697-10-git-send-email-jsnow@redhat.com Reviewed-by: Max Reitz Signed-off-by: Max Reitz --- tests/test-hbitmap.c | 156 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 156 insertions(+) diff --git a/tests/test-hbitmap.c b/tests/test-hbitmap.c index e3abde1..9b7495c 100644 --- a/tests/test-hbitmap.c +++ b/tests/test-hbitmap.c @@ -11,6 +11,7 @@ #include "qemu/osdep.h" #include "qemu/hbitmap.h" +#include "qemu/bitmap.h" #include "block/block.h" #define LOG_BITS_PER_LONG (BITS_PER_LONG == 32 ? 5 : 6) @@ -737,6 +738,16 @@ static void test_hbitmap_meta_one(TestHBitmapData *data, const void *unused) } } +static void test_hbitmap_serialize_granularity(TestHBitmapData *data, + const void *unused) +{ + int r; + + hbitmap_test_init(data, L3 * 2, 3); + r = hbitmap_serialization_granularity(data->hb); + g_assert_cmpint(r, ==, 64 << 3); +} + static void test_hbitmap_meta_zero(TestHBitmapData *data, const void *unused) { hbitmap_test_init_meta(data, 0, 0, 1); @@ -744,6 +755,142 @@ static void test_hbitmap_meta_zero(TestHBitmapData *data, const void *unused) hbitmap_check_meta(data, 0, 0); } +static void hbitmap_test_serialize_range(TestHBitmapData *data, + uint8_t *buf, size_t buf_size, + uint64_t pos, uint64_t count) +{ + size_t i; + unsigned long *el = (unsigned long *)buf; + + assert(hbitmap_granularity(data->hb) == 0); + hbitmap_reset_all(data->hb); + memset(buf, 0, buf_size); + if (count) { + hbitmap_set(data->hb, pos, count); + } + hbitmap_serialize_part(data->hb, buf, 0, data->size); + + /* Serialized buffer is inherently LE, convert it back manually to test */ + for (i = 0; i < buf_size / sizeof(unsigned long); i++) { + el[i] = (BITS_PER_LONG == 32 ? le32_to_cpu(el[i]) : le64_to_cpu(el[i])); + } + + for (i = 0; i < data->size; i++) { + int is_set = test_bit(i, (unsigned long *)buf); + if (i >= pos && i < pos + count) { + g_assert(is_set); + } else { + g_assert(!is_set); + } + } + + /* Re-serialize for deserialization testing */ + memset(buf, 0, buf_size); + hbitmap_serialize_part(data->hb, buf, 0, data->size); + hbitmap_reset_all(data->hb); + hbitmap_deserialize_part(data->hb, buf, 0, data->size, true); + + for (i = 0; i < data->size; i++) { + int is_set = hbitmap_get(data->hb, i); + if (i >= pos && i < pos + count) { + g_assert(is_set); + } else { + g_assert(!is_set); + } + } +} + +static void test_hbitmap_serialize_basic(TestHBitmapData *data, + const void *unused) +{ + int i, j; + size_t buf_size; + uint8_t *buf; + uint64_t positions[] = { 0, 1, L1 - 1, L1, L2 - 1, L2, L2 + 1, L3 - 1 }; + int num_positions = sizeof(positions) / sizeof(positions[0]); + + hbitmap_test_init(data, L3, 0); + buf_size = hbitmap_serialization_size(data->hb, 0, data->size); + buf = g_malloc0(buf_size); + + for (i = 0; i < num_positions; i++) { + for (j = 0; j < num_positions; j++) { + hbitmap_test_serialize_range(data, buf, buf_size, + positions[i], + MIN(positions[j], L3 - positions[i])); + } + } + + g_free(buf); +} + +static void test_hbitmap_serialize_part(TestHBitmapData *data, + const void *unused) +{ + int i, j, k; + size_t buf_size; + uint8_t *buf; + uint64_t positions[] = { 0, 1, L1 - 1, L1, L2 - 1, L2, L2 + 1, L3 - 1 }; + int num_positions = sizeof(positions) / sizeof(positions[0]); + + hbitmap_test_init(data, L3, 0); + buf_size = L2; + buf = g_malloc0(buf_size); + + for (i = 0; i < num_positions; i++) { + hbitmap_set(data->hb, positions[i], 1); + } + + for (i = 0; i < data->size; i += buf_size) { + unsigned long *el = (unsigned long *)buf; + hbitmap_serialize_part(data->hb, buf, i, buf_size); + for (j = 0; j < buf_size / sizeof(unsigned long); j++) { + el[j] = (BITS_PER_LONG == 32 ? le32_to_cpu(el[j]) : le64_to_cpu(el[j])); + } + + for (j = 0; j < buf_size; j++) { + bool should_set = false; + for (k = 0; k < num_positions; k++) { + if (positions[k] == j + i) { + should_set = true; + break; + } + } + g_assert_cmpint(should_set, ==, test_bit(j, (unsigned long *)buf)); + } + } + + g_free(buf); +} + +static void test_hbitmap_serialize_zeroes(TestHBitmapData *data, + const void *unused) +{ + int i; + HBitmapIter iter; + int64_t next; + uint64_t min_l1 = MAX(L1, 64); + uint64_t positions[] = { 0, min_l1, L2, L3 - min_l1}; + int num_positions = sizeof(positions) / sizeof(positions[0]); + + hbitmap_test_init(data, L3, 0); + + for (i = 0; i < num_positions; i++) { + hbitmap_set(data->hb, positions[i], L1); + } + + for (i = 0; i < num_positions; i++) { + hbitmap_deserialize_zeroes(data->hb, positions[i], min_l1, true); + hbitmap_iter_init(&iter, data->hb, 0); + next = hbitmap_iter_next(&iter); + if (i == num_positions - 1) { + g_assert_cmpint(next, ==, -1); + } else { + g_assert_cmpint(next, ==, positions[i + 1]); + } + } +} + static void hbitmap_test_add(const char *testpath, void (*test_func)(TestHBitmapData *data, const void *user_data)) { @@ -799,6 +946,15 @@ int main(int argc, char **argv) hbitmap_test_add("/hbitmap/meta/byte", test_hbitmap_meta_byte); hbitmap_test_add("/hbitmap/meta/word", test_hbitmap_meta_word); hbitmap_test_add("/hbitmap/meta/sector", test_hbitmap_meta_sector); + + hbitmap_test_add("/hbitmap/serialize/granularity", + test_hbitmap_serialize_granularity); + hbitmap_test_add("/hbitmap/serialize/basic", + test_hbitmap_serialize_basic); + hbitmap_test_add("/hbitmap/serialize/part", + test_hbitmap_serialize_part); + hbitmap_test_add("/hbitmap/serialize/zeroes", + test_hbitmap_serialize_zeroes); g_test_run(); return 0; -- 2.7.4