selftests/bpf: Add ASSERT_STRNEQ() variant for test_progs

It will support strncmp()-style string comparisons. Suggested-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alan Maguire <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
ambv · Jul 16, 2021 · 1728333 · 1728333
1 parent 920d16a
commit 1728333
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/tools/testing/selftests/bpf/test_progs.h b/tools/testing/selftests/bpf/test_progs.h
@@ -221,6 +221,18 @@ extern int test__join_cgroup(const char *path);
 	___ok;								\
 })
 
+#define ASSERT_STRNEQ(actual, expected, len, name) ({			\
+	static int duration = 0;					\
+	const char *___act = actual;					\
+	const char *___exp = expected;					\
+	int ___len = len;						\
+	bool ___ok = strncmp(___act, ___exp, ___len) == 0;		\
+	CHECK(!___ok, (name),						\
+	      "unexpected %s: actual '%.*s' != expected '%.*s'\n",	\
+	      (name), ___len, ___act, ___len, ___exp);			\
+	___ok;								\
+})
+
 #define ASSERT_OK(res, name) ({						\
 	static int duration = 0;					\
 	long long ___res = (res);					\