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Subject[PATCH] kunit: Fix result propagation for parameterised tests
From
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 disacarded after
the status line was printed.

Instead, just propagate the result after each parameter run.

Signed-off-by: David Gow <davidgow@google.com>
Fixes: fadb08e7c750 ("kunit: Support for Parameterized Testing")
---

This is fixing quite a serious bug where some test suites would appear
to succeed even if some of their component tests failed. It'd be nice to
get this into kunit-fixes ASAP.

(This will require a rework of some of the skip tests work, for which
I'll send out a new version soon.)

Cheers,
-- David

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 2f6cc0123232..17973a4a44c2 100644
--- a/lib/kunit/test.c
+++ b/lib/kunit/test.c
@@ -376,7 +376,7 @@ 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)
@@ -388,7 +388,7 @@ 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. */
@@ -398,7 +398,6 @@ 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') {
@@ -420,7 +419,7 @@ 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);
}
--
2.32.0.272.g935e593368-goog
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