[New] Migrate zmalloc.c unit tests to new test framework. (#493)

This is the actual PR which is created to migrate all tests related to
zmalloc into new test framework as part of the parent issue
https://github.com/valkey-io/valkey/issues/428.

Signed-off-by: Karthick Ariyaratnam <karthyuom@gmail.com>

src/server.c

@@ -6932,7 +6932,6 @@ struct serverTest {
     {"ziplist", ziplistTest},
     {"quicklist", quicklistTest},
     {"zipmap", zipmapTest},
-    {"zmalloc", zmalloc_test},
     {"dict", dictTest},
     {"listpack", listpackTest},
 };

src/unit/test_files.h

@@ -30,6 +30,9 @@ int test_ll2string(int argc, char **argv, int flags);
 int test_ld2string(int argc, char **argv, int flags);
 int test_fixedpoint_d2string(int argc, char **argv, int flags);
 int test_reclaimFilePageCache(int argc, char **argv, int flags);
+int test_zmallocInitialUsedMemory(int argc, char **argv, int flags);
+int test_zmallocAllocReallocCallocAndFree(int argc, char **argv, int flags);
+int test_zmallocAllocZeroByteAndFree(int argc, char **argv, int flags);
 
 unitTest __test_crc64_c[] = {{"test_crc64", test_crc64}, {NULL, NULL}};
 unitTest __test_crc64combine_c[] = {{"test_crc64combine", test_crc64combine}, {NULL, NULL}};
@@ -39,6 +42,7 @@ unitTest __test_kvstore_c[] = {{"test_kvstoreAdd16Keys", test_kvstoreAdd16Keys},
 unitTest __test_sds_c[] = {{"test_sds", test_sds}, {NULL, NULL}};
 unitTest __test_sha1_c[] = {{"test_sha1", test_sha1}, {NULL, NULL}};
 unitTest __test_util_c[] = {{"test_string2ll", test_string2ll}, {"test_string2l", test_string2l}, {"test_ll2string", test_ll2string}, {"test_ld2string", test_ld2string}, {"test_fixedpoint_d2string", test_fixedpoint_d2string}, {"test_reclaimFilePageCache", test_reclaimFilePageCache}, {NULL, NULL}};
+unitTest __test_zmalloc_c[] = {{"test_zmallocInitialUsedMemory", test_zmallocInitialUsedMemory}, {"test_zmallocAllocReallocCallocAndFree", test_zmallocAllocReallocCallocAndFree}, {"test_zmallocAllocZeroByteAndFree", test_zmallocAllocZeroByteAndFree}, {NULL, NULL}};
 
 struct unitTestSuite {
     char *filename;
@@ -52,4 +56,5 @@ struct unitTestSuite {
     {"test_sds.c", __test_sds_c},
     {"test_sha1.c", __test_sha1_c},
     {"test_util.c", __test_util_c},
+    {"test_zmalloc.c", __test_zmalloc_c},
 };

src/unit/test_zmalloc.c

@@ -0,0 +1,53 @@
+#include "../zmalloc.h"
+#include "test_help.h"
+
+int test_zmallocInitialUsedMemory(int argc, char **argv, int flags) {
+    UNUSED(argc);
+    UNUSED(argv);
+    UNUSED(flags);
+
+    TEST_ASSERT(zmalloc_used_memory() == 0);
+
+    return 0;
+}
+
+int test_zmallocAllocReallocCallocAndFree(int argc, char **argv, int flags) {
+    UNUSED(argc);
+    UNUSED(argv);
+    UNUSED(flags);
+
+    void *ptr, *ptr2;
+
+    ptr = zmalloc(123);
+    TEST_PRINT_INFO("Allocated 123 bytes; used: %zu\n", zmalloc_used_memory());
+
+    ptr = zrealloc(ptr, 456);
+    TEST_PRINT_INFO("Reallocated to 456 bytes; used: %zu\n", zmalloc_used_memory());
+
+    ptr2 = zcalloc(123);
+    TEST_PRINT_INFO("Callocated 123 bytes; used: %zu\n", zmalloc_used_memory());
+
+    zfree(ptr);
+    zfree(ptr2);
+    TEST_PRINT_INFO("Freed pointers; used: %zu\n", zmalloc_used_memory());
+
+    TEST_ASSERT(zmalloc_used_memory() == 0);
+
+    return 0;
+}
+
+int test_zmallocAllocZeroByteAndFree(int argc, char **argv, int flags) {
+    UNUSED(argc);
+    UNUSED(argv);
+    UNUSED(flags);
+
+    void *ptr;
+
+    ptr = zmalloc(0);
+    TEST_PRINT_INFO("Allocated 0 bytes; used: %zu\n", zmalloc_used_memory());
+    zfree(ptr);
+
+    TEST_ASSERT(zmalloc_used_memory() == 0);
+
+    return 0;
+}

src/zmalloc.c

@@ -907,57 +907,3 @@ size_t zmalloc_get_memory_size(void) {
     return 0L;          /* Unknown OS. */
 #endif
 }
-
-#ifdef SERVER_TEST
-#include "testhelp.h"
-#include "serverassert.h"
-
-#define TEST(name) printf("test — %s\n", name);
-
-int zmalloc_test(int argc, char **argv, int flags) {
-    void *ptr, *ptr2;
-
-    UNUSED(argc);
-    UNUSED(argv);
-    UNUSED(flags);
-
-    printf("Malloc prefix size: %d\n", (int) PREFIX_SIZE);
-
-    TEST("Initial used memory is 0") {
-        assert(zmalloc_used_memory() == 0);
-    }
-
-    TEST("Allocated 123 bytes") {
-        ptr = zmalloc(123);
-        printf("Allocated 123 bytes; used: %zu\n", zmalloc_used_memory());
-    }
-
-    TEST("Reallocated to 456 bytes") {
-        ptr = zrealloc(ptr, 456);
-        printf("Reallocated to 456 bytes; used: %zu\n", zmalloc_used_memory());
-    }
-
-    TEST("Callocated 123 bytes") {
-        ptr2 = zcalloc(123);
-        printf("Callocated 123 bytes; used: %zu\n", zmalloc_used_memory());
-    }
-
-    TEST("Freed pointers") {
-        zfree(ptr);
-        zfree(ptr2);
-        printf("Freed pointers; used: %zu\n", zmalloc_used_memory());
-    }
-
-    TEST("Allocated 0 bytes") {
-        ptr = zmalloc(0);
-        printf("Allocated 0 bytes; used: %zu\n", zmalloc_used_memory());
-        zfree(ptr);
-    }
-
-    TEST("At the end used memory is 0") {
-        assert(zmalloc_used_memory() == 0);
-    }
-
-    return 0;
-}
-#endif

src/zmalloc.h

@@ -168,8 +168,4 @@ __attribute__((alloc_size(2),noinline)) void *extend_to_usable(void *ptr, size_t
 
 int get_proc_stat_ll(int i, long long *res);
 
-#ifdef SERVER_TEST
-int zmalloc_test(int argc, char **argv, int flags);
-#endif
-
 #endif /* __ZMALLOC_H */