[PATCH 5.12 612/700] kunit: Fix result propagation for parameterised tests

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From: David Gow <davidgow@xxxxxxxxxx>

[ Upstream commit 384426bd101cb3cd580b18de19d4891ec5ca5bf9 ]

When one parameter of a parameterised test failed, its failure would be
propagated to the overall test, but not to the suite result (unless it
was the last parameter).

This is because test_case->success was being reset to the test->success
result after each parameter was used, so a failing test's result would
be overwritten by a non-failing result. The overall test result was
handled in a third variable, test_result, but this was discarded after
the status line was printed.

Instead, just propagate the result after each parameter run.

Signed-off-by: David Gow <davidgow@xxxxxxxxxx>
Fixes: fadb08e7c750 ("kunit: Support for Parameterized Testing")
Reviewed-by: Marco Elver <elver@xxxxxxxxxx>
Reviewed-by: Brendan Higgins <brendanhiggins@xxxxxxxxxx>
Signed-off-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 lib/kunit/test.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/lib/kunit/test.c b/lib/kunit/test.c
index ec9494e914ef..c2b7248ebc9e 100644
--- a/lib/kunit/test.c
+++ b/lib/kunit/test.c
@@ -343,7 +343,7 @@ static void kunit_run_case_catch_errors(struct kunit_suite *suite,
 	context.test_case = test_case;
 	kunit_try_catch_run(try_catch, &context);
 
-	test_case->success = test->success;
+	test_case->success &= test->success;
 }
 
 int kunit_run_tests(struct kunit_suite *suite)
@@ -355,7 +355,7 @@ int kunit_run_tests(struct kunit_suite *suite)
 
 	kunit_suite_for_each_test_case(suite, test_case) {
 		struct kunit test = { .param_value = NULL, .param_index = 0 };
-		bool test_success = true;
+		test_case->success = true;
 
 		if (test_case->generate_params) {
 			/* Get initial param. */
@@ -365,7 +365,6 @@ int kunit_run_tests(struct kunit_suite *suite)
 
 		do {
 			kunit_run_case_catch_errors(suite, test_case, &test);
-			test_success &= test_case->success;
 
 			if (test_case->generate_params) {
 				if (param_desc[0] == '\0') {
@@ -387,7 +386,7 @@ int kunit_run_tests(struct kunit_suite *suite)
 			}
 		} while (test.param_value);
 
-		kunit_print_ok_not_ok(&test, true, test_success,
+		kunit_print_ok_not_ok(&test, true, test_case->success,
 				      kunit_test_case_num(suite, test_case),
 				      test_case->name);
 	}
-- 
2.30.2






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