[LTP] [PATCH v2] tst_test_macros.h: Add TST_EXP_VAL macro

[zhanglianjie]

Add TST_EXP_VAL to determine whether the return value
is equal to the given value.

Signed-off-by: zhanglianjie <zhanglianjie@uniontech.com>

diff --git a/include/tst_test_macros.h b/include/tst_test_macros.h
index 50598aa15..0ccc01f49 100644
--- a/include/tst_test_macros.h
+++ b/include/tst_test_macros.h
@@ -132,6 +132,34 @@ extern void *TST_RET_PTR;
 			TST_MSG_(TPASS, " passed", #SCALL, ##__VA_ARGS__);     \
 	} while (0)                                                            \

+
+#define TST_EXP_VAL_SILENT_(SCALL, SSCALL, VAL, ...)                           \
+	do {                                                                   \
+		TEST(SCALL);                                                   \
+		                                                               \
+		TST_PASS = 0;                                                  \
+		                                                               \
+		if (TST_RET != VAL) {                                          \
+			TST_MSGP_(TFAIL | TTERRNO, " retval not %ld",          \
+			          (long )VAL, SSCALL, ##__VA_ARGS__);          \
+			break;                                                 \
+		}                                                              \
+		                                                               \
+		TST_PASS = 1;                                                  \
+		                                                               \
+	} while (0)
+
+#define TST_EXP_VAL_SILENT(SCALL, VAL, ...) TST_EXP_VAL_SILENT_(SCALL, #SCALL, VAL, ##__VA_ARGS__)
+
+#define TST_EXP_VAL(SCALL, VAL, ...)                                           \
+	do {                                                                   \
+		TST_EXP_VAL_SILENT(SCALL, VAL, ##__VA_ARGS__);                 \
+		                                                               \
+		if (TST_PASS)                                                  \
+			TST_MSG_(TPASS, " passed", #SCALL, ##__VA_ARGS__);     \
+			                                                       \
+	} while(0)
+
 #define TST_EXP_FAIL_(PASS_COND, SCALL, SSCALL, ERRNO, ...)                    \
 	do {                                                                   \
 		TEST(SCALL);                                                   \
--
2.20.1