test.h: silence must_use warnings

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
yshui · Jun 30, 2024 · ac4a806 · ac4a806
1 parent 3a49a16
commit ac4a806
Showing 1 changed file with 29 additions and 13 deletions.
diff --git a/subprojects/test.h/test.h b/subprojects/test.h/test.h
@@ -222,22 +222,38 @@ static inline void __attribute__((constructor(102))) run_tests(void) {
 
 #define TEST_CASE(name) static void __attribute__((unused)) __test_h_##name(void)
 
+#define TEST__DISCARD(v)                                                                 \
+	__auto_type test_h_unused_##__COUNTER__ __attribute__((unused)) = (v)
+
 #define TEST_EQUAL(a, b)                                                                 \
-	(void)(a);                                                                       \
-	(void)(b)
+	do {                                                                             \
+		TEST__DISCARD(a);                                                        \
+		TEST__DISCARD(b);                                                        \
+	} while (0)
 #define TEST_NOTEQUAL(a, b)                                                              \
-	(void)(a);                                                                       \
-	(void)(b)
-#define TEST_TRUE(a) (void)(a)
+	do {                                                                             \
+		TEST__DISCARD(a);                                                        \
+		TEST__DISCARD(b);                                                        \
+	} while (0)
+#define TEST_TRUE(a)                                                                     \
+	do {                                                                             \
+		TEST__DISCARD(a);                                                        \
+	} while (0)
 #define TEST_STREQUAL(a, b)                                                              \
-	(void)(a);                                                                       \
-	(void)(b)
+	do {                                                                             \
+		TEST__DISCARD(a);                                                        \
+		TEST__DISCARD(b);                                                        \
+	} while (0)
 #define TEST_STRNEQUAL(a, b, len)                                                        \
-	(void)(a);                                                                       \
-	(void)(b);                                                                       \
-	(void)(len)
+	do {                                                                             \
+		TEST__DISCARD(a);                                                        \
+		TEST__DISCARD(b);                                                        \
+		TEST__DISCARD(len);                                                      \
+	} while (0)
 #define TEST_STREQUAL3(str, expected, len)                                               \
-	(void)(str);                                                                     \
-	(void)(expected);                                                                \
-	(void)(len)
+	do {                                                                             \
+		TEST__DISCARD(str);                                                      \
+		TEST__DISCARD(expected);                                                 \
+		TEST__DISCARD(len);                                                      \
+	} while (0)
 #endif