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kunit: Don't crash if no parameters are generated 

It's possible that a parameterised test could end up with zero
parameters. At the moment, the test function will nevertheless be called
with NULL as the parameter. Instead, don't try to run the test code, and
just mark the test as SKIPped.

Reported-by: Daniel Latypov <dlatypov@google.com>
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
David Gow 2021-11-02 00:30:13 -07:00 committed by Shuah Khan
parent e56e482855
commit 37dbb4c7c7
1 changed files with 10 additions and 8 deletions
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18
lib/kunit/test.c
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@ -504,16 +504,18 @@ int kunit_run_tests(struct kunit_suite *suite)
struct kunit_result_stats param_stats = { 0 };
test_case->status = KUNIT_SKIPPED;
if (test_case->generate_params) {
if (!test_case->generate_params) {
/* Non-parameterised test. */
kunit_run_case_catch_errors(suite, test_case, &test);
kunit_update_stats(&param_stats, test.status);
} else {
/* Get initial param. */
param_desc[0] = '\0';
test.param_value = test_case->generate_params(NULL, param_desc);
}
do {
kunit_run_case_catch_errors(suite, test_case, &test);
while (test.param_value) {
kunit_run_case_catch_errors(suite, test_case, &test);
if (test_case->generate_params) {
if (param_desc[0] == '\0') {
snprintf(param_desc, sizeof(param_desc),
"param-%d", test.param_index);
@ -530,11 +532,11 @@ int kunit_run_tests(struct kunit_suite *suite)
param_desc[0] = '\0';
test.param_value = test_case->generate_params(test.param_value, param_desc);
test.param_index++;
kunit_update_stats(&param_stats, test.status);
}
}
kunit_update_stats(&param_stats, test.status);
} while (test.param_value);
kunit_print_test_stats(&test, param_stats);