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kunit: flatten kunit_suite*** to kunit_suite** in .kunit_test_suites
We currently store kunit suites in the .kunit_test_suites ELF section as a `struct kunit_suite***` (modulo some `const`s). For every test file, we store a struct kunit_suite** NULL-terminated array. This adds quite a bit of complexity to the test filtering code in the executor. Instead, let's just make the .kunit_test_suites section contain a single giant array of struct kunit_suite pointers, which can then be directly manipulated. This array is not NULL-terminated, and so none of the test filtering code needs to NULL-terminate anything. Tested-by: Maíra Canal <maira.canal@usp.br> Reviewed-by: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: Daniel Latypov <dlatypov@google.com> Co-developed-by: David Gow <davidgow@google.com> Signed-off-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Daniel Latypov
Shuah Khan
parent
3d6e446238
commit
e5857d396f
@ -237,9 +237,9 @@ size_t kunit_suite_num_test_cases(struct kunit_suite *suite);
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unsigned int kunit_test_case_num(struct kunit_suite *suite,
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struct kunit_case *test_case);
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int __kunit_test_suites_init(struct kunit_suite * const * const suites);
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int __kunit_test_suites_init(struct kunit_suite * const * const suites, int num_suites);
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void __kunit_test_suites_exit(struct kunit_suite **suites);
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void __kunit_test_suites_exit(struct kunit_suite **suites, int num_suites);
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#if IS_BUILTIN(CONFIG_KUNIT)
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int kunit_run_all_tests(void);
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@ -250,11 +250,11 @@ static inline int kunit_run_all_tests(void)
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}
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#endif /* IS_BUILTIN(CONFIG_KUNIT) */
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#define __kunit_test_suites(unique_array, unique_suites, ...) \
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#define __kunit_test_suites(unique_array, ...) \
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MODULE_INFO(test, "Y"); \
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static struct kunit_suite *unique_array[] = { __VA_ARGS__, NULL }; \
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static struct kunit_suite **unique_suites \
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__used __section(".kunit_test_suites") = unique_array
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static struct kunit_suite *unique_array[] \
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__aligned(sizeof(struct kunit_suite *)) \
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__used __section(".kunit_test_suites") = { __VA_ARGS__ }
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/**
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* kunit_test_suites() - used to register one or more &struct kunit_suite
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@ -272,7 +272,6 @@ static inline int kunit_run_all_tests(void)
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*/
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#define kunit_test_suites(__suites...) \
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__kunit_test_suites(__UNIQUE_ID(array), \
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__UNIQUE_ID(suites), \
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##__suites)
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#define kunit_test_suite(suite) kunit_test_suites(&suite)
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@ -507,7 +507,7 @@ struct module {
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#endif
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#if IS_ENABLED(CONFIG_KUNIT)
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int num_kunit_suites;
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struct kunit_suite ***kunit_suites;
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struct kunit_suite **kunit_suites;
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#endif
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@ -9,8 +9,8 @@
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* These symbols point to the .kunit_test_suites section and are defined in
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* include/asm-generic/vmlinux.lds.h, and consequently must be extern.
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*/
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extern struct kunit_suite * const * const __kunit_suites_start[];
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extern struct kunit_suite * const * const __kunit_suites_end[];
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extern struct kunit_suite * const __kunit_suites_start[];
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extern struct kunit_suite * const __kunit_suites_end[];
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#if IS_BUILTIN(CONFIG_KUNIT)
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@ -90,62 +90,18 @@ kunit_filter_tests(const struct kunit_suite *const suite, const char *test_glob)
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static char *kunit_shutdown;
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core_param(kunit_shutdown, kunit_shutdown, charp, 0644);
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static struct kunit_suite * const *
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kunit_filter_subsuite(struct kunit_suite * const * const subsuite,
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struct kunit_test_filter *filter)
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{
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int i, n = 0;
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struct kunit_suite **filtered, *filtered_suite;
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n = 0;
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for (i = 0; subsuite[i]; ++i) {
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if (glob_match(filter->suite_glob, subsuite[i]->name))
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++n;
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}
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if (n == 0)
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return NULL;
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filtered = kmalloc_array(n + 1, sizeof(*filtered), GFP_KERNEL);
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if (!filtered)
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return ERR_PTR(-ENOMEM);
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n = 0;
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for (i = 0; subsuite[i] != NULL; ++i) {
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if (!glob_match(filter->suite_glob, subsuite[i]->name))
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continue;
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filtered_suite = kunit_filter_tests(subsuite[i], filter->test_glob);
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if (IS_ERR(filtered_suite))
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return ERR_CAST(filtered_suite);
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else if (filtered_suite)
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filtered[n++] = filtered_suite;
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}
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filtered[n] = NULL;
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return filtered;
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}
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/* Stores an array of suites, end points one past the end */
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struct suite_set {
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struct kunit_suite * const * const *start;
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struct kunit_suite * const * const *end;
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struct kunit_suite * const *start;
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struct kunit_suite * const *end;
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};
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static void kunit_free_subsuite(struct kunit_suite * const *subsuite)
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{
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unsigned int i;
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for (i = 0; subsuite[i]; i++)
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kfree(subsuite[i]);
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kfree(subsuite);
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}
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static void kunit_free_suite_set(struct suite_set suite_set)
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{
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struct kunit_suite * const * const *suites;
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struct kunit_suite * const *suites;
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for (suites = suite_set.start; suites < suite_set.end; suites++)
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kunit_free_subsuite(*suites);
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kfree(*suites);
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kfree(suite_set.start);
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}
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@ -154,7 +110,7 @@ static struct suite_set kunit_filter_suites(const struct suite_set *suite_set,
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int *err)
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{
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int i;
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struct kunit_suite * const **copy, * const *filtered_subsuite;
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struct kunit_suite **copy, *filtered_suite;
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struct suite_set filtered;
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struct kunit_test_filter filter;
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@ -169,14 +125,19 @@ static struct suite_set kunit_filter_suites(const struct suite_set *suite_set,
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kunit_parse_filter_glob(&filter, filter_glob);
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for (i = 0; i < max; ++i) {
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filtered_subsuite = kunit_filter_subsuite(suite_set->start[i], &filter);
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if (IS_ERR(filtered_subsuite)) {
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*err = PTR_ERR(filtered_subsuite);
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for (i = 0; &suite_set->start[i] != suite_set->end; i++) {
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if (!glob_match(filter.suite_glob, suite_set->start[i]->name))
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continue;
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filtered_suite = kunit_filter_tests(suite_set->start[i], filter.test_glob);
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if (IS_ERR(filtered_suite)) {
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*err = PTR_ERR(filtered_suite);
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return filtered;
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}
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if (filtered_subsuite)
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*copy++ = filtered_subsuite;
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if (!filtered_suite)
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continue;
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*copy++ = filtered_suite;
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}
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filtered.end = copy;
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@ -199,52 +160,33 @@ static void kunit_handle_shutdown(void)
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}
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static void kunit_print_tap_header(struct suite_set *suite_set)
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{
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struct kunit_suite * const * const *suites, * const *subsuite;
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int num_of_suites = 0;
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for (suites = suite_set->start; suites < suite_set->end; suites++)
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for (subsuite = *suites; *subsuite != NULL; subsuite++)
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num_of_suites++;
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pr_info("TAP version 14\n");
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pr_info("1..%d\n", num_of_suites);
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}
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static void kunit_exec_run_tests(struct suite_set *suite_set)
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{
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struct kunit_suite * const * const *suites;
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size_t num_suites = suite_set->end - suite_set->start;
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kunit_print_tap_header(suite_set);
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pr_info("TAP version 14\n");
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pr_info("1..%zu\n", num_suites);
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for (suites = suite_set->start; suites < suite_set->end; suites++)
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__kunit_test_suites_init(*suites);
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__kunit_test_suites_init(suite_set->start, num_suites);
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}
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static void kunit_exec_list_tests(struct suite_set *suite_set)
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{
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unsigned int i;
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struct kunit_suite * const * const *suites;
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struct kunit_suite * const *suites;
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struct kunit_case *test_case;
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/* Hack: print a tap header so kunit.py can find the start of KUnit output. */
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pr_info("TAP version 14\n");
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for (suites = suite_set->start; suites < suite_set->end; suites++)
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for (i = 0; (*suites)[i] != NULL; i++) {
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kunit_suite_for_each_test_case((*suites)[i], test_case) {
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pr_info("%s.%s\n", (*suites)[i]->name, test_case->name);
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}
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kunit_suite_for_each_test_case((*suites), test_case) {
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pr_info("%s.%s\n", (*suites)->name, test_case->name);
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}
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}
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int kunit_run_all_tests(void)
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{
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struct suite_set suite_set = {
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.start = __kunit_suites_start,
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.end = __kunit_suites_end,
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};
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struct suite_set suite_set = {__kunit_suites_start, __kunit_suites_end};
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int err = 0;
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if (filter_glob_param) {
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@ -262,11 +204,10 @@ int kunit_run_all_tests(void)
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else
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pr_err("kunit executor: unknown action '%s'\n", action_param);
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if (filter_glob_param) { /* a copy was made of each array */
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if (filter_glob_param) { /* a copy was made of each suite */
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kunit_free_suite_set(suite_set);
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}
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out:
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kunit_handle_shutdown();
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return err;
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@ -9,8 +9,6 @@
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#include <kunit/test.h>
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static void kfree_at_end(struct kunit *test, const void *to_free);
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static void free_subsuite_at_end(struct kunit *test,
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struct kunit_suite *const *to_free);
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static struct kunit_suite *alloc_fake_suite(struct kunit *test,
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const char *suite_name,
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struct kunit_case *test_cases);
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@ -41,126 +39,80 @@ static void parse_filter_test(struct kunit *test)
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kfree(filter.test_glob);
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}
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static void filter_subsuite_test(struct kunit *test)
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static void filter_suites_test(struct kunit *test)
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{
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struct kunit_suite *subsuite[3] = {NULL, NULL, NULL};
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struct kunit_suite * const *filtered;
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struct kunit_test_filter filter = {
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.suite_glob = "suite2",
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.test_glob = NULL,
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};
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struct kunit_suite *subsuite[3] = {NULL, NULL};
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struct suite_set suite_set = {.start = subsuite, .end = &subsuite[2]};
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struct suite_set got;
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int err = 0;
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subsuite[0] = alloc_fake_suite(test, "suite1", dummy_test_cases);
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subsuite[1] = alloc_fake_suite(test, "suite2", dummy_test_cases);
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/* Want: suite1, suite2, NULL -> suite2, NULL */
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filtered = kunit_filter_subsuite(subsuite, &filter);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered);
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free_subsuite_at_end(test, filtered);
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got = kunit_filter_suites(&suite_set, "suite2", &err);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start);
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KUNIT_ASSERT_EQ(test, err, 0);
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kfree_at_end(test, got.start);
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/* Validate we just have suite2 */
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered[0]);
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KUNIT_EXPECT_STREQ(test, (const char *)filtered[0]->name, "suite2");
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KUNIT_EXPECT_FALSE(test, filtered[1]);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start[0]);
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KUNIT_EXPECT_STREQ(test, (const char *)got.start[0]->name, "suite2");
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/* Contains one element (end is 1 past end) */
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KUNIT_ASSERT_EQ(test, got.end - got.start, 1);
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}
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static void filter_subsuite_test_glob_test(struct kunit *test)
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static void filter_suites_test_glob_test(struct kunit *test)
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{
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struct kunit_suite *subsuite[3] = {NULL, NULL, NULL};
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struct kunit_suite * const *filtered;
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struct kunit_test_filter filter = {
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.suite_glob = "suite2",
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.test_glob = "test2",
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};
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struct kunit_suite *subsuite[3] = {NULL, NULL};
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struct suite_set suite_set = {.start = subsuite, .end = &subsuite[2]};
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struct suite_set got;
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int err = 0;
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subsuite[0] = alloc_fake_suite(test, "suite1", dummy_test_cases);
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subsuite[1] = alloc_fake_suite(test, "suite2", dummy_test_cases);
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/* Want: suite1, suite2, NULL -> suite2 (just test1), NULL */
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filtered = kunit_filter_subsuite(subsuite, &filter);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered);
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free_subsuite_at_end(test, filtered);
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got = kunit_filter_suites(&suite_set, "suite2.test2", &err);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start);
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KUNIT_ASSERT_EQ(test, err, 0);
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kfree_at_end(test, got.start);
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/* Validate we just have suite2 */
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered[0]);
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KUNIT_EXPECT_STREQ(test, (const char *)filtered[0]->name, "suite2");
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KUNIT_EXPECT_FALSE(test, filtered[1]);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start[0]);
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KUNIT_EXPECT_STREQ(test, (const char *)got.start[0]->name, "suite2");
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KUNIT_ASSERT_EQ(test, got.end - got.start, 1);
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/* Now validate we just have test2 */
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered[0]->test_cases);
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KUNIT_EXPECT_STREQ(test, (const char *)filtered[0]->test_cases[0].name, "test2");
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KUNIT_EXPECT_FALSE(test, filtered[0]->test_cases[1].name);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start[0]->test_cases);
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KUNIT_EXPECT_STREQ(test, (const char *)got.start[0]->test_cases[0].name, "test2");
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KUNIT_EXPECT_FALSE(test, got.start[0]->test_cases[1].name);
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}
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static void filter_subsuite_to_empty_test(struct kunit *test)
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static void filter_suites_to_empty_test(struct kunit *test)
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{
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struct kunit_suite *subsuite[3] = {NULL, NULL, NULL};
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struct kunit_suite * const *filtered;
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struct kunit_test_filter filter = {
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.suite_glob = "not_found",
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.test_glob = NULL,
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};
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struct kunit_suite *subsuite[3] = {NULL, NULL};
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struct suite_set suite_set = {.start = subsuite, .end = &subsuite[2]};
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struct suite_set got;
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int err = 0;
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subsuite[0] = alloc_fake_suite(test, "suite1", dummy_test_cases);
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subsuite[1] = alloc_fake_suite(test, "suite2", dummy_test_cases);
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filtered = kunit_filter_subsuite(subsuite, &filter);
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free_subsuite_at_end(test, filtered); /* just in case */
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got = kunit_filter_suites(&suite_set, "not_found", &err);
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KUNIT_ASSERT_EQ(test, err, 0);
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kfree_at_end(test, got.start); /* just in case */
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KUNIT_EXPECT_FALSE_MSG(test, filtered,
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"should be NULL to indicate no match");
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}
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static void kfree_subsuites_at_end(struct kunit *test, struct suite_set *suite_set)
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{
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struct kunit_suite * const * const *suites;
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kfree_at_end(test, suite_set->start);
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for (suites = suite_set->start; suites < suite_set->end; suites++)
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free_subsuite_at_end(test, *suites);
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}
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static void filter_suites_test(struct kunit *test)
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{
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/* Suites per-file are stored as a NULL terminated array */
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struct kunit_suite *subsuites[2][2] = {
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{NULL, NULL},
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{NULL, NULL},
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};
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/* Match the memory layout of suite_set */
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struct kunit_suite * const * const suites[2] = {
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subsuites[0], subsuites[1],
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};
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const struct suite_set suite_set = {
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.start = suites,
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.end = suites + 2,
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};
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struct suite_set filtered = {.start = NULL, .end = NULL};
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int err = 0;
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/* Emulate two files, each having one suite */
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subsuites[0][0] = alloc_fake_suite(test, "suite0", dummy_test_cases);
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subsuites[1][0] = alloc_fake_suite(test, "suite1", dummy_test_cases);
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/* Filter out suite1 */
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filtered = kunit_filter_suites(&suite_set, "suite0", &err);
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kfree_subsuites_at_end(test, &filtered); /* let us use ASSERTs without leaking */
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KUNIT_EXPECT_EQ(test, err, 0);
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KUNIT_ASSERT_EQ(test, filtered.end - filtered.start, (ptrdiff_t)1);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered.start);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered.start[0]);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered.start[0][0]);
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KUNIT_EXPECT_STREQ(test, (const char *)filtered.start[0][0]->name, "suite0");
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KUNIT_EXPECT_PTR_EQ_MSG(test, got.start, got.end,
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"should be empty to indicate no match");
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}
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|
||||
static struct kunit_case executor_test_cases[] = {
|
||||
KUNIT_CASE(parse_filter_test),
|
||||
KUNIT_CASE(filter_subsuite_test),
|
||||
KUNIT_CASE(filter_subsuite_test_glob_test),
|
||||
KUNIT_CASE(filter_subsuite_to_empty_test),
|
||||
KUNIT_CASE(filter_suites_test),
|
||||
KUNIT_CASE(filter_suites_test_glob_test),
|
||||
KUNIT_CASE(filter_suites_to_empty_test),
|
||||
{}
|
||||
};
|
||||
|
||||
@ -190,20 +142,6 @@ static void kfree_at_end(struct kunit *test, const void *to_free)
|
||||
(void *)to_free);
|
||||
}
|
||||
|
||||
static void free_subsuite_res_free(struct kunit_resource *res)
|
||||
{
|
||||
kunit_free_subsuite(res->data);
|
||||
}
|
||||
|
||||
static void free_subsuite_at_end(struct kunit *test,
|
||||
struct kunit_suite *const *to_free)
|
||||
{
|
||||
if (IS_ERR_OR_NULL(to_free))
|
||||
return;
|
||||
kunit_alloc_resource(test, NULL, free_subsuite_res_free,
|
||||
GFP_KERNEL, (void *)to_free);
|
||||
}
|
||||
|
||||
static struct kunit_suite *alloc_fake_suite(struct kunit *test,
|
||||
const char *suite_name,
|
||||
struct kunit_case *test_cases)
|
||||
|
||||
@ -586,11 +586,11 @@ static void kunit_init_suite(struct kunit_suite *suite)
|
||||
suite->suite_init_err = 0;
|
||||
}
|
||||
|
||||
int __kunit_test_suites_init(struct kunit_suite * const * const suites)
|
||||
int __kunit_test_suites_init(struct kunit_suite * const * const suites, int num_suites)
|
||||
{
|
||||
unsigned int i;
|
||||
|
||||
for (i = 0; suites[i] != NULL; i++) {
|
||||
for (i = 0; i < num_suites; i++) {
|
||||
kunit_init_suite(suites[i]);
|
||||
kunit_run_tests(suites[i]);
|
||||
}
|
||||
@ -603,11 +603,11 @@ static void kunit_exit_suite(struct kunit_suite *suite)
|
||||
kunit_debugfs_destroy_suite(suite);
|
||||
}
|
||||
|
||||
void __kunit_test_suites_exit(struct kunit_suite **suites)
|
||||
void __kunit_test_suites_exit(struct kunit_suite **suites, int num_suites)
|
||||
{
|
||||
unsigned int i;
|
||||
|
||||
for (i = 0; suites[i] != NULL; i++)
|
||||
for (i = 0; i < num_suites; i++)
|
||||
kunit_exit_suite(suites[i]);
|
||||
|
||||
kunit_suite_counter = 1;
|
||||
@ -617,18 +617,12 @@ EXPORT_SYMBOL_GPL(__kunit_test_suites_exit);
|
||||
#ifdef CONFIG_MODULES
|
||||
static void kunit_module_init(struct module *mod)
|
||||
{
|
||||
unsigned int i;
|
||||
|
||||
for (i = 0; i < mod->num_kunit_suites; i++)
|
||||
__kunit_test_suites_init(mod->kunit_suites[i]);
|
||||
__kunit_test_suites_init(mod->kunit_suites, mod->num_kunit_suites);
|
||||
}
|
||||
|
||||
static void kunit_module_exit(struct module *mod)
|
||||
{
|
||||
unsigned int i;
|
||||
|
||||
for (i = 0; i < mod->num_kunit_suites; i++)
|
||||
__kunit_test_suites_exit(mod->kunit_suites[i]);
|
||||
__kunit_test_suites_exit(mod->kunit_suites, mod->num_kunit_suites);
|
||||
}
|
||||
|
||||
static int kunit_module_notify(struct notifier_block *nb, unsigned long val,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user