Use size utils in arena tests

src/common/misc/misc_utils.h

@@ -3,6 +3,11 @@
 
 #include "aliases.h"
 
+#define KB(SIZE) (SIZE * 1024ull)
+#define MB(SIZE) (KB(SIZE) * 1024)
+#define GB(SIZE) (MB(SIZE) * 1024)
+#define TB(SIZE) (GB(SIZE) * 1024)
+
 #define wapp_misc_utils_padding_size(SIZE)                                     \
   u8 reserved_padding[sizeof(void *) - ((SIZE) % sizeof(void *))]
 

tests/arena/test_arena.c

@@ -1,6 +1,7 @@
 #include "test_arena.h"
 #include "aliases.h"
 #include "mem_arena.h"
+#include "misc_utils.h"
 #include "tester.h"
 #include <stdbool.h>
 #include <stdlib.h>
@@ -19,7 +20,7 @@ TestFuncResult test_arena_init(void) {
 
 TestFuncResult test_arena_init_succeeds_when_reserving_very_large_size(void) {
   Arena *large_arena = NULL;
-  u64 capacity = 512ull * 1024ull * 1024ull * 1024ull;
+  u64 capacity = GB(512);
   bool result = wapp_mem_arena_init(&large_arena, capacity,
                                     WAPP_MEM_ALLOC_RESERVE, false);
   if (result) {