mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-01-07 13:53:24 +00:00
linux_kselftest-kunit-6.7-rc1
This kunit update for Linux 6.7-rc1 consists of: -- string-stream testing enhancements -- several fixes memory leaks -- fix to reset status during parameter handling -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmVClgAACgkQCwJExA0N QxwXhA//Yn2nL5an6A9ZQire8S0HmxqdAwgROBVb7AaCkJ9L4cY+BYyt+VzTkaGO DJ3x5TwBi6BUkDSmAjppu+KhSQqbRvtmC5xIwH5zbSqKesftklJDhNC6SBd8ZFSC W5w+wwK8xxqFni2NAQu/ZMHrxgllUlR7ZbCE31U/IUYvW4NP4izz9oX3rqkvgjEU aZOQpe3GBVn3jkX+gYopoCqegbSiobjeE83cq8NwFX22rxA8FRDKeJF6/5fv3N1h vJF0KR14QIxc+Y50KHLNMpCXLIM8/IXEiPXd0bqzFVEB+/uyikM8BRPQRHaq9PfA VhaRSDAe9rYgAQYZcayAPLHlrsrFXS/gFs2x15QxzeLfrke7uJg1jEa8CoxV50f3 ImAOxbtxXcW0Oz0lU4J5iX6Kq1gwhv/GP/Rgr8Cf2xMo4dWy3k6/dt8Ep7FwuwWk +ReDNPBw+FMrRLN3hWTXr2Y7k4avOmCDmjj5L1YVVG9yug0WI4ZD3OelbcXtzAA6 XUAuB/EjCQYNB8XrOGd7+xX8eZraA/68xgf9gtNM3ycoIQ2UAfGnQnaZm3BXjvGk zjnvG8JpaCBObvonK22y1t60Ive1PbZgpdtU2Za1QTUjZWUPPudLHr7oU30crOaW +aqtCam6UGU6GlsiMWzbN8cv/q5fo/gCWkfKLGEry2NCz/71mwc= =Nn2t -----END PGP SIGNATURE----- Merge tag 'linux_kselftest-kunit-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kunit updates from Shuah Khan: - string-stream testing enhancements - several fixes memory leaks - fix to reset status during parameter handling * tag 'linux_kselftest-kunit-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: kunit: test: Fix the possible memory leak in executor_test kunit: Fix possible memory leak in kunit_filter_suites() kunit: Fix the wrong kfree of copy for kunit_filter_suites() kunit: Fix missed memory release in kunit_free_suite_set() kunit: Reset test status on each param iteration kunit: string-stream: Test performance of string_stream kunit: Use string_stream for test log kunit: string-stream: Add tests for freeing resource-managed string_stream kunit: string-stream: Decouple string_stream from kunit kunit: string-stream: Add kunit_alloc_string_stream() kunit: Don't use a managed alloc in is_literal() kunit: string-stream-test: Add cases for string_stream newline appending kunit: string-stream: Add option to make all lines end with newline kunit: string-stream: Improve testing of string_stream kunit: string-stream: Don't create a fragment for empty strings
This commit is contained in:
Linus Torvalds
commit
5eda8f2537
@ -33,9 +33,7 @@
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DECLARE_STATIC_KEY_FALSE(kunit_running);
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struct kunit;
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/* Size of log associated with test. */
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#define KUNIT_LOG_SIZE 2048
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struct string_stream;
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/* Maximum size of parameter description string. */
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#define KUNIT_PARAM_DESC_SIZE 128
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@ -133,7 +131,7 @@ struct kunit_case {
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/* private: internal use only. */
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enum kunit_status status;
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char *module_name;
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char *log;
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struct string_stream *log;
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};
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static inline char *kunit_status_to_ok_not_ok(enum kunit_status status)
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@ -253,7 +251,7 @@ struct kunit_suite {
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/* private: internal use only */
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char status_comment[KUNIT_STATUS_COMMENT_SIZE];
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struct dentry *debugfs;
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char *log;
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struct string_stream *log;
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int suite_init_err;
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};
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@ -279,7 +277,7 @@ struct kunit {
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/* private: internal use only. */
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const char *name; /* Read only after initialization! */
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char *log; /* Points at case log after initialization */
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struct string_stream *log; /* Points at case log after initialization */
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struct kunit_try_catch try_catch;
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/* param_value is the current parameter value for a test case. */
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const void *param_value;
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@ -315,7 +313,7 @@ const char *kunit_filter_glob(void);
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char *kunit_filter(void);
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char *kunit_filter_action(void);
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void kunit_init_test(struct kunit *test, const char *name, char *log);
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void kunit_init_test(struct kunit *test, const char *name, struct string_stream *log);
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int kunit_run_tests(struct kunit_suite *suite);
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@ -473,7 +471,7 @@ static inline void *kunit_kcalloc(struct kunit *test, size_t n, size_t size, gfp
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void kunit_cleanup(struct kunit *test);
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void __printf(2, 3) kunit_log_append(char *log, const char *fmt, ...);
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void __printf(2, 3) kunit_log_append(struct string_stream *log, const char *fmt, ...);
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/**
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* kunit_mark_skipped() - Marks @test_or_suite as skipped
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@ -89,8 +89,7 @@ void kunit_ptr_not_err_assert_format(const struct kunit_assert *assert,
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EXPORT_SYMBOL_GPL(kunit_ptr_not_err_assert_format);
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/* Checks if `text` is a literal representing `value`, e.g. "5" and 5 */
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static bool is_literal(struct kunit *test, const char *text, long long value,
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gfp_t gfp)
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static bool is_literal(const char *text, long long value)
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{
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char *buffer;
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int len;
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@ -100,14 +99,15 @@ static bool is_literal(struct kunit *test, const char *text, long long value,
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if (strlen(text) != len)
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return false;
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buffer = kunit_kmalloc(test, len+1, gfp);
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buffer = kmalloc(len+1, GFP_KERNEL);
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if (!buffer)
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return false;
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snprintf(buffer, len+1, "%lld", value);
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ret = strncmp(buffer, text, len) == 0;
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kunit_kfree(test, buffer);
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kfree(buffer);
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return ret;
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}
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@ -125,14 +125,12 @@ void kunit_binary_assert_format(const struct kunit_assert *assert,
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binary_assert->text->left_text,
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binary_assert->text->operation,
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binary_assert->text->right_text);
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if (!is_literal(stream->test, binary_assert->text->left_text,
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binary_assert->left_value, stream->gfp))
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if (!is_literal(binary_assert->text->left_text, binary_assert->left_value))
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string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s == %lld (0x%llx)\n",
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binary_assert->text->left_text,
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binary_assert->left_value,
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binary_assert->left_value);
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if (!is_literal(stream->test, binary_assert->text->right_text,
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binary_assert->right_value, stream->gfp))
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if (!is_literal(binary_assert->text->right_text, binary_assert->right_value))
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string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s == %lld (0x%llx)",
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binary_assert->text->right_text,
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binary_assert->right_value,
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@ -37,14 +37,21 @@ void kunit_debugfs_init(void)
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debugfs_rootdir = debugfs_create_dir(KUNIT_DEBUGFS_ROOT, NULL);
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}
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static void debugfs_print_result(struct seq_file *seq,
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struct kunit_suite *suite,
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struct kunit_case *test_case)
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static void debugfs_print_result(struct seq_file *seq, struct string_stream *log)
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{
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if (!test_case || !test_case->log)
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struct string_stream_fragment *frag_container;
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if (!log)
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return;
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seq_printf(seq, "%s", test_case->log);
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/*
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* Walk the fragments so we don't need to allocate a temporary
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* buffer to hold the entire string.
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*/
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spin_lock(&log->lock);
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list_for_each_entry(frag_container, &log->fragments, node)
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seq_printf(seq, "%s", frag_container->fragment);
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spin_unlock(&log->lock);
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}
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/*
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@ -69,10 +76,9 @@ static int debugfs_print_results(struct seq_file *seq, void *v)
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seq_printf(seq, KUNIT_SUBTEST_INDENT "1..%zd\n", kunit_suite_num_test_cases(suite));
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kunit_suite_for_each_test_case(suite, test_case)
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debugfs_print_result(seq, suite, test_case);
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debugfs_print_result(seq, test_case->log);
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if (suite->log)
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seq_printf(seq, "%s", suite->log);
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debugfs_print_result(seq, suite->log);
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seq_printf(seq, "%s %d %s\n",
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kunit_status_to_ok_not_ok(success), 1, suite->name);
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@ -105,9 +111,13 @@ void kunit_debugfs_create_suite(struct kunit_suite *suite)
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struct kunit_case *test_case;
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/* Allocate logs before creating debugfs representation. */
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suite->log = kzalloc(KUNIT_LOG_SIZE, GFP_KERNEL);
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kunit_suite_for_each_test_case(suite, test_case)
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test_case->log = kzalloc(KUNIT_LOG_SIZE, GFP_KERNEL);
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suite->log = alloc_string_stream(GFP_KERNEL);
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string_stream_set_append_newlines(suite->log, true);
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kunit_suite_for_each_test_case(suite, test_case) {
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test_case->log = alloc_string_stream(GFP_KERNEL);
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string_stream_set_append_newlines(test_case->log, true);
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}
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suite->debugfs = debugfs_create_dir(suite->name, debugfs_rootdir);
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@ -121,7 +131,7 @@ void kunit_debugfs_destroy_suite(struct kunit_suite *suite)
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struct kunit_case *test_case;
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debugfs_remove_recursive(suite->debugfs);
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kfree(suite->log);
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string_stream_destroy(suite->log);
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kunit_suite_for_each_test_case(suite, test_case)
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kfree(test_case->log);
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string_stream_destroy(test_case->log);
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}
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@ -137,8 +137,10 @@ void kunit_free_suite_set(struct kunit_suite_set suite_set)
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{
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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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for (suites = suite_set.start; suites < suite_set.end; suites++) {
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kfree((*suites)->test_cases);
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kfree(*suites);
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}
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kfree(suite_set.start);
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}
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@ -155,10 +157,11 @@ kunit_filter_suites(const struct kunit_suite_set *suite_set,
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struct kunit_suite_set filtered = {NULL, NULL};
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struct kunit_glob_filter parsed_glob;
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struct kunit_attr_filter *parsed_filters = NULL;
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struct kunit_suite * const *suites;
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const size_t max = suite_set->end - suite_set->start;
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copy = kmalloc_array(max, sizeof(*filtered.start), GFP_KERNEL);
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copy = kcalloc(max, sizeof(*filtered.start), GFP_KERNEL);
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if (!copy) { /* won't be able to run anything, return an empty set */
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return filtered;
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}
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@ -193,7 +196,7 @@ kunit_filter_suites(const struct kunit_suite_set *suite_set,
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parsed_glob.test_glob);
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if (IS_ERR(filtered_suite)) {
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*err = PTR_ERR(filtered_suite);
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goto free_parsed_filters;
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goto free_filtered_suite;
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}
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}
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if (filter_count > 0 && parsed_filters != NULL) {
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@ -210,11 +213,11 @@ kunit_filter_suites(const struct kunit_suite_set *suite_set,
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filtered_suite = new_filtered_suite;
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if (*err)
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goto free_parsed_filters;
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goto free_filtered_suite;
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if (IS_ERR(filtered_suite)) {
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*err = PTR_ERR(filtered_suite);
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goto free_parsed_filters;
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goto free_filtered_suite;
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}
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if (!filtered_suite)
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break;
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@ -229,6 +232,14 @@ kunit_filter_suites(const struct kunit_suite_set *suite_set,
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filtered.start = copy_start;
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filtered.end = copy;
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free_filtered_suite:
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if (*err) {
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for (suites = copy_start; suites < copy; suites++) {
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kfree((*suites)->test_cases);
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kfree(*suites);
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}
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}
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free_parsed_filters:
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if (filter_count)
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kfree(parsed_filters);
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@ -241,7 +252,7 @@ kunit_filter_suites(const struct kunit_suite_set *suite_set,
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free_copy:
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if (*err)
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kfree(copy);
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kfree(copy_start);
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return filtered;
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}
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@ -9,7 +9,7 @@
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#include <kunit/test.h>
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#include <kunit/attributes.h>
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static void kfree_at_end(struct kunit *test, const void *to_free);
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static void free_suite_set_at_end(struct kunit *test, const void *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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@ -56,7 +56,7 @@ static void filter_suites_test(struct kunit *test)
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got = kunit_filter_suites(&suite_set, "suite2", NULL, NULL, &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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free_suite_set_at_end(test, &got);
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/* Validate we just have suite2 */
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start[0]);
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@ -82,7 +82,7 @@ static void filter_suites_test_glob_test(struct kunit *test)
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got = kunit_filter_suites(&suite_set, "suite2.test2", NULL, NULL, &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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free_suite_set_at_end(test, &got);
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/* Validate we just have suite2 */
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start[0]);
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@ -109,7 +109,7 @@ static void filter_suites_to_empty_test(struct kunit *test)
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got = kunit_filter_suites(&suite_set, "not_found", NULL, NULL, &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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free_suite_set_at_end(test, &got); /* just in case */
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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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@ -172,7 +172,7 @@ static void filter_attr_test(struct kunit *test)
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got = kunit_filter_suites(&suite_set, NULL, filter, NULL, &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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free_suite_set_at_end(test, &got);
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/* Validate we just have normal_suite */
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start[0]);
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@ -200,7 +200,7 @@ static void filter_attr_empty_test(struct kunit *test)
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got = kunit_filter_suites(&suite_set, NULL, filter, NULL, &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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free_suite_set_at_end(test, &got); /* just in case */
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||||
|
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KUNIT_EXPECT_PTR_EQ_MSG(test, got.start, got.end,
|
||||
"should be empty to indicate no match");
|
||||
@ -222,7 +222,7 @@ static void filter_attr_skip_test(struct kunit *test)
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got = kunit_filter_suites(&suite_set, NULL, filter, "skip", &err);
|
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start);
|
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KUNIT_ASSERT_EQ(test, err, 0);
|
||||
kfree_at_end(test, got.start);
|
||||
free_suite_set_at_end(test, &got);
|
||||
|
||||
/* Validate we have both the slow and normal test */
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, got.start[0]->test_cases);
|
||||
@ -256,18 +256,26 @@ kunit_test_suites(&executor_test_suite);
|
||||
|
||||
/* Test helpers */
|
||||
|
||||
/* Use the resource API to register a call to kfree(to_free).
|
||||
static void free_suite_set(void *suite_set)
|
||||
{
|
||||
kunit_free_suite_set(*(struct kunit_suite_set *)suite_set);
|
||||
kfree(suite_set);
|
||||
}
|
||||
|
||||
/* Use the resource API to register a call to free_suite_set.
|
||||
* Since we never actually use the resource, it's safe to use on const data.
|
||||
*/
|
||||
static void kfree_at_end(struct kunit *test, const void *to_free)
|
||||
static void free_suite_set_at_end(struct kunit *test, const void *to_free)
|
||||
{
|
||||
/* kfree() handles NULL already, but avoid allocating a no-op cleanup. */
|
||||
if (IS_ERR_OR_NULL(to_free))
|
||||
struct kunit_suite_set *free;
|
||||
|
||||
if (!((struct kunit_suite_set *)to_free)->start)
|
||||
return;
|
||||
|
||||
kunit_add_action(test,
|
||||
(kunit_action_t *)kfree,
|
||||
(void *)to_free);
|
||||
free = kzalloc(sizeof(struct kunit_suite_set), GFP_KERNEL);
|
||||
*free = *(struct kunit_suite_set *)to_free;
|
||||
|
||||
kunit_add_action(test, free_suite_set, (void *)free);
|
||||
}
|
||||
|
||||
static struct kunit_suite *alloc_fake_suite(struct kunit *test,
|
||||
|
||||
@ -190,6 +190,7 @@ static void example_static_stub_test(struct kunit *test)
|
||||
static const struct example_param {
|
||||
int value;
|
||||
} example_params_array[] = {
|
||||
{ .value = 3, },
|
||||
{ .value = 2, },
|
||||
{ .value = 1, },
|
||||
{ .value = 0, },
|
||||
@ -213,8 +214,8 @@ static void example_params_test(struct kunit *test)
|
||||
KUNIT_ASSERT_NOT_NULL(test, param);
|
||||
|
||||
/* Test can be skipped on unsupported param values */
|
||||
if (!param->value)
|
||||
kunit_skip(test, "unsupported param value");
|
||||
if (!is_power_of_2(param->value))
|
||||
kunit_skip(test, "unsupported param value %d", param->value);
|
||||
|
||||
/* You can use param values for parameterized testing */
|
||||
KUNIT_EXPECT_EQ(test, param->value % param->value, 0);
|
||||
|
||||
@ -8,6 +8,7 @@
|
||||
#include <kunit/test.h>
|
||||
#include <kunit/test-bug.h>
|
||||
|
||||
#include "string-stream.h"
|
||||
#include "try-catch-impl.h"
|
||||
|
||||
struct kunit_try_catch_test_context {
|
||||
@ -530,12 +531,27 @@ static struct kunit_suite kunit_resource_test_suite = {
|
||||
.test_cases = kunit_resource_test_cases,
|
||||
};
|
||||
|
||||
/*
|
||||
* Log tests call string_stream functions, which aren't exported. So only
|
||||
* build this code if this test is built-in.
|
||||
*/
|
||||
#if IS_BUILTIN(CONFIG_KUNIT_TEST)
|
||||
|
||||
/* This avoids a cast warning if kfree() is passed direct to kunit_add_action(). */
|
||||
static void kfree_wrapper(void *p)
|
||||
{
|
||||
kfree(p);
|
||||
}
|
||||
|
||||
static void kunit_log_test(struct kunit *test)
|
||||
{
|
||||
struct kunit_suite suite;
|
||||
|
||||
suite.log = kunit_kzalloc(test, KUNIT_LOG_SIZE, GFP_KERNEL);
|
||||
#ifdef CONFIG_KUNIT_DEBUGFS
|
||||
char *full_log;
|
||||
#endif
|
||||
suite.log = kunit_alloc_string_stream(test, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, suite.log);
|
||||
string_stream_set_append_newlines(suite.log, true);
|
||||
|
||||
kunit_log(KERN_INFO, test, "put this in log.");
|
||||
kunit_log(KERN_INFO, test, "this too.");
|
||||
@ -543,14 +559,21 @@ static void kunit_log_test(struct kunit *test)
|
||||
kunit_log(KERN_INFO, &suite, "along with this.");
|
||||
|
||||
#ifdef CONFIG_KUNIT_DEBUGFS
|
||||
KUNIT_EXPECT_TRUE(test, test->log->append_newlines);
|
||||
|
||||
full_log = string_stream_get_string(test->log);
|
||||
kunit_add_action(test, (kunit_action_t *)kfree, full_log);
|
||||
KUNIT_EXPECT_NOT_ERR_OR_NULL(test,
|
||||
strstr(test->log, "put this in log."));
|
||||
strstr(full_log, "put this in log."));
|
||||
KUNIT_EXPECT_NOT_ERR_OR_NULL(test,
|
||||
strstr(test->log, "this too."));
|
||||
strstr(full_log, "this too."));
|
||||
|
||||
full_log = string_stream_get_string(suite.log);
|
||||
kunit_add_action(test, kfree_wrapper, full_log);
|
||||
KUNIT_EXPECT_NOT_ERR_OR_NULL(test,
|
||||
strstr(suite.log, "add to suite log."));
|
||||
strstr(full_log, "add to suite log."));
|
||||
KUNIT_EXPECT_NOT_ERR_OR_NULL(test,
|
||||
strstr(suite.log, "along with this."));
|
||||
strstr(full_log, "along with this."));
|
||||
#else
|
||||
KUNIT_EXPECT_NULL(test, test->log);
|
||||
#endif
|
||||
@ -558,15 +581,30 @@ static void kunit_log_test(struct kunit *test)
|
||||
|
||||
static void kunit_log_newline_test(struct kunit *test)
|
||||
{
|
||||
char *full_log;
|
||||
|
||||
kunit_info(test, "Add newline\n");
|
||||
if (test->log) {
|
||||
KUNIT_ASSERT_NOT_NULL_MSG(test, strstr(test->log, "Add newline\n"),
|
||||
"Missing log line, full log:\n%s", test->log);
|
||||
KUNIT_EXPECT_NULL(test, strstr(test->log, "Add newline\n\n"));
|
||||
full_log = string_stream_get_string(test->log);
|
||||
kunit_add_action(test, kfree_wrapper, full_log);
|
||||
KUNIT_ASSERT_NOT_NULL_MSG(test, strstr(full_log, "Add newline\n"),
|
||||
"Missing log line, full log:\n%s", full_log);
|
||||
KUNIT_EXPECT_NULL(test, strstr(full_log, "Add newline\n\n"));
|
||||
} else {
|
||||
kunit_skip(test, "only useful when debugfs is enabled");
|
||||
}
|
||||
}
|
||||
#else
|
||||
static void kunit_log_test(struct kunit *test)
|
||||
{
|
||||
kunit_skip(test, "Log tests only run when built-in");
|
||||
}
|
||||
|
||||
static void kunit_log_newline_test(struct kunit *test)
|
||||
{
|
||||
kunit_skip(test, "Log tests only run when built-in");
|
||||
}
|
||||
#endif /* IS_BUILTIN(CONFIG_KUNIT_TEST) */
|
||||
|
||||
static struct kunit_case kunit_log_test_cases[] = {
|
||||
KUNIT_CASE(kunit_log_test),
|
||||
|
||||
@ -6,48 +6,539 @@
|
||||
* Author: Brendan Higgins <brendanhiggins@google.com>
|
||||
*/
|
||||
|
||||
#include <kunit/static_stub.h>
|
||||
#include <kunit/test.h>
|
||||
#include <linux/ktime.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/timekeeping.h>
|
||||
|
||||
#include "string-stream.h"
|
||||
|
||||
static void string_stream_test_empty_on_creation(struct kunit *test)
|
||||
struct string_stream_test_priv {
|
||||
/* For testing resource-managed free. */
|
||||
struct string_stream *expected_free_stream;
|
||||
bool stream_was_freed;
|
||||
bool stream_free_again;
|
||||
};
|
||||
|
||||
/* Avoids a cast warning if kfree() is passed direct to kunit_add_action(). */
|
||||
static void kfree_wrapper(void *p)
|
||||
{
|
||||
struct string_stream *stream = alloc_string_stream(test, GFP_KERNEL);
|
||||
kfree(p);
|
||||
}
|
||||
|
||||
/* Avoids a cast warning if string_stream_destroy() is passed direct to kunit_add_action(). */
|
||||
static void cleanup_raw_stream(void *p)
|
||||
{
|
||||
struct string_stream *stream = p;
|
||||
|
||||
string_stream_destroy(stream);
|
||||
}
|
||||
|
||||
static char *get_concatenated_string(struct kunit *test, struct string_stream *stream)
|
||||
{
|
||||
char *str = string_stream_get_string(stream);
|
||||
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, str);
|
||||
kunit_add_action(test, kfree_wrapper, (void *)str);
|
||||
|
||||
return str;
|
||||
}
|
||||
|
||||
/* Managed string_stream object is initialized correctly. */
|
||||
static void string_stream_managed_init_test(struct kunit *test)
|
||||
{
|
||||
struct string_stream *stream;
|
||||
|
||||
/* Resource-managed initialization. */
|
||||
stream = kunit_alloc_string_stream(test, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream);
|
||||
|
||||
KUNIT_EXPECT_EQ(test, stream->length, 0);
|
||||
KUNIT_EXPECT_TRUE(test, list_empty(&stream->fragments));
|
||||
KUNIT_EXPECT_TRUE(test, (stream->gfp == GFP_KERNEL));
|
||||
KUNIT_EXPECT_FALSE(test, stream->append_newlines);
|
||||
KUNIT_EXPECT_TRUE(test, string_stream_is_empty(stream));
|
||||
}
|
||||
|
||||
/* Unmanaged string_stream object is initialized correctly. */
|
||||
static void string_stream_unmanaged_init_test(struct kunit *test)
|
||||
{
|
||||
struct string_stream *stream;
|
||||
|
||||
stream = alloc_string_stream(GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream);
|
||||
kunit_add_action(test, cleanup_raw_stream, stream);
|
||||
|
||||
KUNIT_EXPECT_EQ(test, stream->length, 0);
|
||||
KUNIT_EXPECT_TRUE(test, list_empty(&stream->fragments));
|
||||
KUNIT_EXPECT_EQ(test, stream->gfp, GFP_KERNEL);
|
||||
KUNIT_EXPECT_FALSE(test, stream->append_newlines);
|
||||
|
||||
KUNIT_EXPECT_TRUE(test, string_stream_is_empty(stream));
|
||||
}
|
||||
|
||||
static void string_stream_test_not_empty_after_add(struct kunit *test)
|
||||
static void string_stream_destroy_stub(struct string_stream *stream)
|
||||
{
|
||||
struct string_stream *stream = alloc_string_stream(test, GFP_KERNEL);
|
||||
struct kunit *fake_test = kunit_get_current_test();
|
||||
struct string_stream_test_priv *priv = fake_test->priv;
|
||||
|
||||
string_stream_add(stream, "Foo");
|
||||
/* The kunit could own string_streams other than the one we are testing. */
|
||||
if (stream == priv->expected_free_stream) {
|
||||
if (priv->stream_was_freed)
|
||||
priv->stream_free_again = true;
|
||||
else
|
||||
priv->stream_was_freed = true;
|
||||
}
|
||||
|
||||
KUNIT_EXPECT_FALSE(test, string_stream_is_empty(stream));
|
||||
/*
|
||||
* Calling string_stream_destroy() will only call this function again
|
||||
* because the redirection stub is still active.
|
||||
* Avoid calling deactivate_static_stub() or changing current->kunit_test
|
||||
* during cleanup.
|
||||
*/
|
||||
string_stream_clear(stream);
|
||||
kfree(stream);
|
||||
}
|
||||
|
||||
static void string_stream_test_get_string(struct kunit *test)
|
||||
/* kunit_free_string_stream() calls string_stream_desrtoy() */
|
||||
static void string_stream_managed_free_test(struct kunit *test)
|
||||
{
|
||||
struct string_stream *stream = alloc_string_stream(test, GFP_KERNEL);
|
||||
char *output;
|
||||
struct string_stream_test_priv *priv = test->priv;
|
||||
|
||||
string_stream_add(stream, "Foo");
|
||||
string_stream_add(stream, " %s", "bar");
|
||||
priv->expected_free_stream = NULL;
|
||||
priv->stream_was_freed = false;
|
||||
priv->stream_free_again = false;
|
||||
|
||||
output = string_stream_get_string(stream);
|
||||
KUNIT_ASSERT_STREQ(test, output, "Foo bar");
|
||||
kunit_activate_static_stub(test,
|
||||
string_stream_destroy,
|
||||
string_stream_destroy_stub);
|
||||
|
||||
priv->expected_free_stream = kunit_alloc_string_stream(test, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->expected_free_stream);
|
||||
|
||||
/* This should call the stub function. */
|
||||
kunit_free_string_stream(test, priv->expected_free_stream);
|
||||
|
||||
KUNIT_EXPECT_TRUE(test, priv->stream_was_freed);
|
||||
KUNIT_EXPECT_FALSE(test, priv->stream_free_again);
|
||||
}
|
||||
|
||||
/* string_stream object is freed when test is cleaned up. */
|
||||
static void string_stream_resource_free_test(struct kunit *test)
|
||||
{
|
||||
struct string_stream_test_priv *priv = test->priv;
|
||||
struct kunit *fake_test;
|
||||
|
||||
fake_test = kunit_kzalloc(test, sizeof(*fake_test), GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, fake_test);
|
||||
|
||||
kunit_init_test(fake_test, "string_stream_fake_test", NULL);
|
||||
fake_test->priv = priv;
|
||||
|
||||
/*
|
||||
* Activate stub before creating string_stream so the
|
||||
* string_stream will be cleaned up first.
|
||||
*/
|
||||
priv->expected_free_stream = NULL;
|
||||
priv->stream_was_freed = false;
|
||||
priv->stream_free_again = false;
|
||||
|
||||
kunit_activate_static_stub(fake_test,
|
||||
string_stream_destroy,
|
||||
string_stream_destroy_stub);
|
||||
|
||||
priv->expected_free_stream = kunit_alloc_string_stream(fake_test, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->expected_free_stream);
|
||||
|
||||
/* Set current->kunit_test to fake_test so the static stub will be called. */
|
||||
current->kunit_test = fake_test;
|
||||
|
||||
/* Cleanup test - the stub function should be called */
|
||||
kunit_cleanup(fake_test);
|
||||
|
||||
/* Set current->kunit_test back to current test. */
|
||||
current->kunit_test = test;
|
||||
|
||||
KUNIT_EXPECT_TRUE(test, priv->stream_was_freed);
|
||||
KUNIT_EXPECT_FALSE(test, priv->stream_free_again);
|
||||
}
|
||||
|
||||
/*
|
||||
* Add a series of lines to a string_stream. Check that all lines
|
||||
* appear in the correct order and no characters are dropped.
|
||||
*/
|
||||
static void string_stream_line_add_test(struct kunit *test)
|
||||
{
|
||||
struct string_stream *stream;
|
||||
char line[60];
|
||||
char *concat_string, *pos, *string_end;
|
||||
size_t len, total_len;
|
||||
int num_lines, i;
|
||||
|
||||
stream = kunit_alloc_string_stream(test, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream);
|
||||
|
||||
/* Add series of sequence numbered lines */
|
||||
total_len = 0;
|
||||
for (i = 0; i < 100; ++i) {
|
||||
len = snprintf(line, sizeof(line),
|
||||
"The quick brown fox jumps over the lazy penguin %d\n", i);
|
||||
|
||||
/* Sanity-check that our test string isn't truncated */
|
||||
KUNIT_ASSERT_LT(test, len, sizeof(line));
|
||||
|
||||
string_stream_add(stream, line);
|
||||
total_len += len;
|
||||
}
|
||||
num_lines = i;
|
||||
|
||||
concat_string = get_concatenated_string(test, stream);
|
||||
KUNIT_EXPECT_NOT_ERR_OR_NULL(test, concat_string);
|
||||
KUNIT_EXPECT_EQ(test, strlen(concat_string), total_len);
|
||||
|
||||
/*
|
||||
* Split the concatenated string at the newlines and check that
|
||||
* all the original added strings are present.
|
||||
*/
|
||||
pos = concat_string;
|
||||
for (i = 0; i < num_lines; ++i) {
|
||||
string_end = strchr(pos, '\n');
|
||||
KUNIT_EXPECT_NOT_NULL(test, string_end);
|
||||
|
||||
/* Convert to NULL-terminated string */
|
||||
*string_end = '\0';
|
||||
|
||||
snprintf(line, sizeof(line),
|
||||
"The quick brown fox jumps over the lazy penguin %d", i);
|
||||
KUNIT_EXPECT_STREQ(test, pos, line);
|
||||
|
||||
pos = string_end + 1;
|
||||
}
|
||||
|
||||
/* There shouldn't be any more data after this */
|
||||
KUNIT_EXPECT_EQ(test, strlen(pos), 0);
|
||||
}
|
||||
|
||||
/* Add a series of lines of variable length to a string_stream. */
|
||||
static void string_stream_variable_length_line_test(struct kunit *test)
|
||||
{
|
||||
static const char line[] =
|
||||
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
||||
" 0123456789!$%^&*()_-+={}[]:;@'~#<>,.?/|";
|
||||
struct string_stream *stream;
|
||||
struct rnd_state rnd;
|
||||
char *concat_string, *pos, *string_end;
|
||||
size_t offset, total_len;
|
||||
int num_lines, i;
|
||||
|
||||
stream = kunit_alloc_string_stream(test, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream);
|
||||
|
||||
/*
|
||||
* Log many lines of varying lengths until we have created
|
||||
* many fragments.
|
||||
* The "randomness" must be repeatable.
|
||||
*/
|
||||
prandom_seed_state(&rnd, 3141592653589793238ULL);
|
||||
total_len = 0;
|
||||
for (i = 0; i < 100; ++i) {
|
||||
offset = prandom_u32_state(&rnd) % (sizeof(line) - 1);
|
||||
string_stream_add(stream, "%s\n", &line[offset]);
|
||||
total_len += sizeof(line) - offset;
|
||||
}
|
||||
num_lines = i;
|
||||
|
||||
concat_string = get_concatenated_string(test, stream);
|
||||
KUNIT_EXPECT_NOT_ERR_OR_NULL(test, concat_string);
|
||||
KUNIT_EXPECT_EQ(test, strlen(concat_string), total_len);
|
||||
|
||||
/*
|
||||
* Split the concatenated string at the newlines and check that
|
||||
* all the original added strings are present.
|
||||
*/
|
||||
prandom_seed_state(&rnd, 3141592653589793238ULL);
|
||||
pos = concat_string;
|
||||
for (i = 0; i < num_lines; ++i) {
|
||||
string_end = strchr(pos, '\n');
|
||||
KUNIT_EXPECT_NOT_NULL(test, string_end);
|
||||
|
||||
/* Convert to NULL-terminated string */
|
||||
*string_end = '\0';
|
||||
|
||||
offset = prandom_u32_state(&rnd) % (sizeof(line) - 1);
|
||||
KUNIT_EXPECT_STREQ(test, pos, &line[offset]);
|
||||
|
||||
pos = string_end + 1;
|
||||
}
|
||||
|
||||
/* There shouldn't be any more data after this */
|
||||
KUNIT_EXPECT_EQ(test, strlen(pos), 0);
|
||||
}
|
||||
|
||||
/* Appending the content of one string stream to another. */
|
||||
static void string_stream_append_test(struct kunit *test)
|
||||
{
|
||||
static const char * const strings_1[] = {
|
||||
"one", "two", "three", "four", "five", "six",
|
||||
"seven", "eight", "nine", "ten",
|
||||
};
|
||||
static const char * const strings_2[] = {
|
||||
"Apple", "Pear", "Orange", "Banana", "Grape", "Apricot",
|
||||
};
|
||||
struct string_stream *stream_1, *stream_2;
|
||||
const char *stream1_content_before_append, *stream_2_content;
|
||||
char *combined_content;
|
||||
size_t combined_length;
|
||||
int i;
|
||||
|
||||
stream_1 = kunit_alloc_string_stream(test, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream_1);
|
||||
|
||||
stream_2 = kunit_alloc_string_stream(test, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream_2);
|
||||
|
||||
/* Append content of empty stream to empty stream */
|
||||
string_stream_append(stream_1, stream_2);
|
||||
KUNIT_EXPECT_EQ(test, strlen(get_concatenated_string(test, stream_1)), 0);
|
||||
|
||||
/* Add some data to stream_1 */
|
||||
for (i = 0; i < ARRAY_SIZE(strings_1); ++i)
|
||||
string_stream_add(stream_1, "%s\n", strings_1[i]);
|
||||
|
||||
stream1_content_before_append = get_concatenated_string(test, stream_1);
|
||||
|
||||
/* Append content of empty stream to non-empty stream */
|
||||
string_stream_append(stream_1, stream_2);
|
||||
KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream_1),
|
||||
stream1_content_before_append);
|
||||
|
||||
/* Add some data to stream_2 */
|
||||
for (i = 0; i < ARRAY_SIZE(strings_2); ++i)
|
||||
string_stream_add(stream_2, "%s\n", strings_2[i]);
|
||||
|
||||
/* Append content of non-empty stream to non-empty stream */
|
||||
string_stream_append(stream_1, stream_2);
|
||||
|
||||
/*
|
||||
* End result should be the original content of stream_1 plus
|
||||
* the content of stream_2.
|
||||
*/
|
||||
stream_2_content = get_concatenated_string(test, stream_2);
|
||||
combined_length = strlen(stream1_content_before_append) + strlen(stream_2_content);
|
||||
combined_length++; /* for terminating \0 */
|
||||
combined_content = kunit_kmalloc(test, combined_length, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, combined_content);
|
||||
snprintf(combined_content, combined_length, "%s%s",
|
||||
stream1_content_before_append, stream_2_content);
|
||||
|
||||
KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream_1), combined_content);
|
||||
|
||||
/* Append content of non-empty stream to empty stream */
|
||||
kunit_free_string_stream(test, stream_1);
|
||||
|
||||
stream_1 = kunit_alloc_string_stream(test, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream_1);
|
||||
|
||||
string_stream_append(stream_1, stream_2);
|
||||
KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream_1), stream_2_content);
|
||||
}
|
||||
|
||||
/* Appending the content of one string stream to one with auto-newlining. */
|
||||
static void string_stream_append_auto_newline_test(struct kunit *test)
|
||||
{
|
||||
struct string_stream *stream_1, *stream_2;
|
||||
|
||||
/* Stream 1 has newline appending enabled */
|
||||
stream_1 = kunit_alloc_string_stream(test, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream_1);
|
||||
string_stream_set_append_newlines(stream_1, true);
|
||||
KUNIT_EXPECT_TRUE(test, stream_1->append_newlines);
|
||||
|
||||
/* Stream 2 does not append newlines */
|
||||
stream_2 = kunit_alloc_string_stream(test, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream_2);
|
||||
|
||||
/* Appending a stream with a newline should not add another newline */
|
||||
string_stream_add(stream_1, "Original string\n");
|
||||
string_stream_add(stream_2, "Appended content\n");
|
||||
string_stream_add(stream_2, "More stuff\n");
|
||||
string_stream_append(stream_1, stream_2);
|
||||
KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream_1),
|
||||
"Original string\nAppended content\nMore stuff\n");
|
||||
|
||||
kunit_free_string_stream(test, stream_2);
|
||||
stream_2 = kunit_alloc_string_stream(test, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream_2);
|
||||
|
||||
/*
|
||||
* Appending a stream without newline should add a final newline.
|
||||
* The appended string_stream is treated as a single string so newlines
|
||||
* should not be inserted between fragments.
|
||||
*/
|
||||
string_stream_add(stream_2, "Another");
|
||||
string_stream_add(stream_2, "And again");
|
||||
string_stream_append(stream_1, stream_2);
|
||||
KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream_1),
|
||||
"Original string\nAppended content\nMore stuff\nAnotherAnd again\n");
|
||||
}
|
||||
|
||||
/* Adding an empty string should not create a fragment. */
|
||||
static void string_stream_append_empty_string_test(struct kunit *test)
|
||||
{
|
||||
struct string_stream *stream;
|
||||
int original_frag_count;
|
||||
|
||||
stream = kunit_alloc_string_stream(test, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream);
|
||||
|
||||
/* Formatted empty string */
|
||||
string_stream_add(stream, "%s", "");
|
||||
KUNIT_EXPECT_TRUE(test, string_stream_is_empty(stream));
|
||||
KUNIT_EXPECT_TRUE(test, list_empty(&stream->fragments));
|
||||
|
||||
/* Adding an empty string to a non-empty stream */
|
||||
string_stream_add(stream, "Add this line");
|
||||
original_frag_count = list_count_nodes(&stream->fragments);
|
||||
|
||||
string_stream_add(stream, "%s", "");
|
||||
KUNIT_EXPECT_EQ(test, list_count_nodes(&stream->fragments), original_frag_count);
|
||||
KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream), "Add this line");
|
||||
}
|
||||
|
||||
/* Adding strings without automatic newline appending */
|
||||
static void string_stream_no_auto_newline_test(struct kunit *test)
|
||||
{
|
||||
struct string_stream *stream;
|
||||
|
||||
stream = kunit_alloc_string_stream(test, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream);
|
||||
|
||||
/*
|
||||
* Add some strings with and without newlines. All formatted newlines
|
||||
* should be preserved. It should not add any extra newlines.
|
||||
*/
|
||||
string_stream_add(stream, "One");
|
||||
string_stream_add(stream, "Two\n");
|
||||
string_stream_add(stream, "%s\n", "Three");
|
||||
string_stream_add(stream, "%s", "Four\n");
|
||||
string_stream_add(stream, "Five\n%s", "Six");
|
||||
string_stream_add(stream, "Seven\n\n");
|
||||
string_stream_add(stream, "Eight");
|
||||
KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream),
|
||||
"OneTwo\nThree\nFour\nFive\nSixSeven\n\nEight");
|
||||
}
|
||||
|
||||
/* Adding strings with automatic newline appending */
|
||||
static void string_stream_auto_newline_test(struct kunit *test)
|
||||
{
|
||||
struct string_stream *stream;
|
||||
|
||||
stream = kunit_alloc_string_stream(test, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream);
|
||||
|
||||
string_stream_set_append_newlines(stream, true);
|
||||
KUNIT_EXPECT_TRUE(test, stream->append_newlines);
|
||||
|
||||
/*
|
||||
* Add some strings with and without newlines. Newlines should
|
||||
* be appended to lines that do not end with \n, but newlines
|
||||
* resulting from the formatting should not be changed.
|
||||
*/
|
||||
string_stream_add(stream, "One");
|
||||
string_stream_add(stream, "Two\n");
|
||||
string_stream_add(stream, "%s\n", "Three");
|
||||
string_stream_add(stream, "%s", "Four\n");
|
||||
string_stream_add(stream, "Five\n%s", "Six");
|
||||
string_stream_add(stream, "Seven\n\n");
|
||||
string_stream_add(stream, "Eight");
|
||||
KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream),
|
||||
"One\nTwo\nThree\nFour\nFive\nSix\nSeven\n\nEight\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* This doesn't actually "test" anything. It reports time taken
|
||||
* and memory used for logging a large number of lines.
|
||||
*/
|
||||
static void string_stream_performance_test(struct kunit *test)
|
||||
{
|
||||
struct string_stream_fragment *frag_container;
|
||||
struct string_stream *stream;
|
||||
char test_line[101];
|
||||
ktime_t start_time, end_time;
|
||||
size_t len, bytes_requested, actual_bytes_used, total_string_length;
|
||||
int offset, i;
|
||||
|
||||
stream = kunit_alloc_string_stream(test, GFP_KERNEL);
|
||||
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream);
|
||||
|
||||
memset(test_line, 'x', sizeof(test_line) - 1);
|
||||
test_line[sizeof(test_line) - 1] = '\0';
|
||||
|
||||
start_time = ktime_get();
|
||||
for (i = 0; i < 10000; i++) {
|
||||
offset = i % (sizeof(test_line) - 1);
|
||||
string_stream_add(stream, "%s: %d\n", &test_line[offset], i);
|
||||
}
|
||||
end_time = ktime_get();
|
||||
|
||||
/*
|
||||
* Calculate memory used. This doesn't include invisible
|
||||
* overhead due to kernel allocator fragment size rounding.
|
||||
*/
|
||||
bytes_requested = sizeof(*stream);
|
||||
actual_bytes_used = ksize(stream);
|
||||
total_string_length = 0;
|
||||
|
||||
list_for_each_entry(frag_container, &stream->fragments, node) {
|
||||
bytes_requested += sizeof(*frag_container);
|
||||
actual_bytes_used += ksize(frag_container);
|
||||
|
||||
len = strlen(frag_container->fragment);
|
||||
total_string_length += len;
|
||||
bytes_requested += len + 1; /* +1 for '\0' */
|
||||
actual_bytes_used += ksize(frag_container->fragment);
|
||||
}
|
||||
|
||||
kunit_info(test, "Time elapsed: %lld us\n",
|
||||
ktime_us_delta(end_time, start_time));
|
||||
kunit_info(test, "Total string length: %zu\n", total_string_length);
|
||||
kunit_info(test, "Bytes requested: %zu\n", bytes_requested);
|
||||
kunit_info(test, "Actual bytes allocated: %zu\n", actual_bytes_used);
|
||||
}
|
||||
|
||||
static int string_stream_test_init(struct kunit *test)
|
||||
{
|
||||
struct string_stream_test_priv *priv;
|
||||
|
||||
priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL);
|
||||
if (!priv)
|
||||
return -ENOMEM;
|
||||
|
||||
test->priv = priv;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct kunit_case string_stream_test_cases[] = {
|
||||
KUNIT_CASE(string_stream_test_empty_on_creation),
|
||||
KUNIT_CASE(string_stream_test_not_empty_after_add),
|
||||
KUNIT_CASE(string_stream_test_get_string),
|
||||
KUNIT_CASE(string_stream_managed_init_test),
|
||||
KUNIT_CASE(string_stream_unmanaged_init_test),
|
||||
KUNIT_CASE(string_stream_managed_free_test),
|
||||
KUNIT_CASE(string_stream_resource_free_test),
|
||||
KUNIT_CASE(string_stream_line_add_test),
|
||||
KUNIT_CASE(string_stream_variable_length_line_test),
|
||||
KUNIT_CASE(string_stream_append_test),
|
||||
KUNIT_CASE(string_stream_append_auto_newline_test),
|
||||
KUNIT_CASE(string_stream_append_empty_string_test),
|
||||
KUNIT_CASE(string_stream_no_auto_newline_test),
|
||||
KUNIT_CASE(string_stream_auto_newline_test),
|
||||
KUNIT_CASE(string_stream_performance_test),
|
||||
{}
|
||||
};
|
||||
|
||||
static struct kunit_suite string_stream_test_suite = {
|
||||
.name = "string-stream-test",
|
||||
.test_cases = string_stream_test_cases
|
||||
.test_cases = string_stream_test_cases,
|
||||
.init = string_stream_test_init,
|
||||
};
|
||||
kunit_test_suites(&string_stream_test_suite);
|
||||
|
||||
@ -6,6 +6,7 @@
|
||||
* Author: Brendan Higgins <brendanhiggins@google.com>
|
||||
*/
|
||||
|
||||
#include <kunit/static_stub.h>
|
||||
#include <kunit/test.h>
|
||||
#include <linux/list.h>
|
||||
#include <linux/slab.h>
|
||||
@ -13,30 +14,28 @@
|
||||
#include "string-stream.h"
|
||||
|
||||
|
||||
static struct string_stream_fragment *alloc_string_stream_fragment(
|
||||
struct kunit *test, int len, gfp_t gfp)
|
||||
static struct string_stream_fragment *alloc_string_stream_fragment(int len, gfp_t gfp)
|
||||
{
|
||||
struct string_stream_fragment *frag;
|
||||
|
||||
frag = kunit_kzalloc(test, sizeof(*frag), gfp);
|
||||
frag = kzalloc(sizeof(*frag), gfp);
|
||||
if (!frag)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
frag->fragment = kunit_kmalloc(test, len, gfp);
|
||||
frag->fragment = kmalloc(len, gfp);
|
||||
if (!frag->fragment) {
|
||||
kunit_kfree(test, frag);
|
||||
kfree(frag);
|
||||
return ERR_PTR(-ENOMEM);
|
||||
}
|
||||
|
||||
return frag;
|
||||
}
|
||||
|
||||
static void string_stream_fragment_destroy(struct kunit *test,
|
||||
struct string_stream_fragment *frag)
|
||||
static void string_stream_fragment_destroy(struct string_stream_fragment *frag)
|
||||
{
|
||||
list_del(&frag->node);
|
||||
kunit_kfree(test, frag->fragment);
|
||||
kunit_kfree(test, frag);
|
||||
kfree(frag->fragment);
|
||||
kfree(frag);
|
||||
}
|
||||
|
||||
int string_stream_vadd(struct string_stream *stream,
|
||||
@ -44,26 +43,44 @@ int string_stream_vadd(struct string_stream *stream,
|
||||
va_list args)
|
||||
{
|
||||
struct string_stream_fragment *frag_container;
|
||||
int len;
|
||||
int buf_len, result_len;
|
||||
va_list args_for_counting;
|
||||
|
||||
/* Make a copy because `vsnprintf` could change it */
|
||||
va_copy(args_for_counting, args);
|
||||
|
||||
/* Need space for null byte. */
|
||||
len = vsnprintf(NULL, 0, fmt, args_for_counting) + 1;
|
||||
/* Evaluate length of formatted string */
|
||||
buf_len = vsnprintf(NULL, 0, fmt, args_for_counting);
|
||||
|
||||
va_end(args_for_counting);
|
||||
|
||||
frag_container = alloc_string_stream_fragment(stream->test,
|
||||
len,
|
||||
stream->gfp);
|
||||
if (buf_len == 0)
|
||||
return 0;
|
||||
|
||||
/* Reserve one extra for possible appended newline. */
|
||||
if (stream->append_newlines)
|
||||
buf_len++;
|
||||
|
||||
/* Need space for null byte. */
|
||||
buf_len++;
|
||||
|
||||
frag_container = alloc_string_stream_fragment(buf_len, stream->gfp);
|
||||
if (IS_ERR(frag_container))
|
||||
return PTR_ERR(frag_container);
|
||||
|
||||
len = vsnprintf(frag_container->fragment, len, fmt, args);
|
||||
if (stream->append_newlines) {
|
||||
/* Don't include reserved newline byte in writeable length. */
|
||||
result_len = vsnprintf(frag_container->fragment, buf_len - 1, fmt, args);
|
||||
|
||||
/* Append newline if necessary. */
|
||||
if (frag_container->fragment[result_len - 1] != '\n')
|
||||
result_len = strlcat(frag_container->fragment, "\n", buf_len);
|
||||
} else {
|
||||
result_len = vsnprintf(frag_container->fragment, buf_len, fmt, args);
|
||||
}
|
||||
|
||||
spin_lock(&stream->lock);
|
||||
stream->length += len;
|
||||
stream->length += result_len;
|
||||
list_add_tail(&frag_container->node, &stream->fragments);
|
||||
spin_unlock(&stream->lock);
|
||||
|
||||
@ -82,7 +99,7 @@ int string_stream_add(struct string_stream *stream, const char *fmt, ...)
|
||||
return result;
|
||||
}
|
||||
|
||||
static void string_stream_clear(struct string_stream *stream)
|
||||
void string_stream_clear(struct string_stream *stream)
|
||||
{
|
||||
struct string_stream_fragment *frag_container, *frag_container_safe;
|
||||
|
||||
@ -91,7 +108,7 @@ static void string_stream_clear(struct string_stream *stream)
|
||||
frag_container_safe,
|
||||
&stream->fragments,
|
||||
node) {
|
||||
string_stream_fragment_destroy(stream->test, frag_container);
|
||||
string_stream_fragment_destroy(frag_container);
|
||||
}
|
||||
stream->length = 0;
|
||||
spin_unlock(&stream->lock);
|
||||
@ -103,7 +120,7 @@ char *string_stream_get_string(struct string_stream *stream)
|
||||
size_t buf_len = stream->length + 1; /* +1 for null byte. */
|
||||
char *buf;
|
||||
|
||||
buf = kunit_kzalloc(stream->test, buf_len, stream->gfp);
|
||||
buf = kzalloc(buf_len, stream->gfp);
|
||||
if (!buf)
|
||||
return NULL;
|
||||
|
||||
@ -119,13 +136,17 @@ int string_stream_append(struct string_stream *stream,
|
||||
struct string_stream *other)
|
||||
{
|
||||
const char *other_content;
|
||||
int ret;
|
||||
|
||||
other_content = string_stream_get_string(other);
|
||||
|
||||
if (!other_content)
|
||||
return -ENOMEM;
|
||||
|
||||
return string_stream_add(stream, other_content);
|
||||
ret = string_stream_add(stream, other_content);
|
||||
kfree(other_content);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
bool string_stream_is_empty(struct string_stream *stream)
|
||||
@ -133,16 +154,15 @@ bool string_stream_is_empty(struct string_stream *stream)
|
||||
return list_empty(&stream->fragments);
|
||||
}
|
||||
|
||||
struct string_stream *alloc_string_stream(struct kunit *test, gfp_t gfp)
|
||||
struct string_stream *alloc_string_stream(gfp_t gfp)
|
||||
{
|
||||
struct string_stream *stream;
|
||||
|
||||
stream = kunit_kzalloc(test, sizeof(*stream), gfp);
|
||||
stream = kzalloc(sizeof(*stream), gfp);
|
||||
if (!stream)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
stream->gfp = gfp;
|
||||
stream->test = test;
|
||||
INIT_LIST_HEAD(&stream->fragments);
|
||||
spin_lock_init(&stream->lock);
|
||||
|
||||
@ -151,5 +171,37 @@ struct string_stream *alloc_string_stream(struct kunit *test, gfp_t gfp)
|
||||
|
||||
void string_stream_destroy(struct string_stream *stream)
|
||||
{
|
||||
KUNIT_STATIC_STUB_REDIRECT(string_stream_destroy, stream);
|
||||
|
||||
if (!stream)
|
||||
return;
|
||||
|
||||
string_stream_clear(stream);
|
||||
kfree(stream);
|
||||
}
|
||||
|
||||
static void resource_free_string_stream(void *p)
|
||||
{
|
||||
struct string_stream *stream = p;
|
||||
|
||||
string_stream_destroy(stream);
|
||||
}
|
||||
|
||||
struct string_stream *kunit_alloc_string_stream(struct kunit *test, gfp_t gfp)
|
||||
{
|
||||
struct string_stream *stream;
|
||||
|
||||
stream = alloc_string_stream(gfp);
|
||||
if (IS_ERR(stream))
|
||||
return stream;
|
||||
|
||||
if (kunit_add_action_or_reset(test, resource_free_string_stream, stream) != 0)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
return stream;
|
||||
}
|
||||
|
||||
void kunit_free_string_stream(struct kunit *test, struct string_stream *stream)
|
||||
{
|
||||
kunit_release_action(test, resource_free_string_stream, (void *)stream);
|
||||
}
|
||||
|
||||
@ -23,13 +23,17 @@ struct string_stream {
|
||||
struct list_head fragments;
|
||||
/* length and fragments are protected by this lock */
|
||||
spinlock_t lock;
|
||||
struct kunit *test;
|
||||
gfp_t gfp;
|
||||
bool append_newlines;
|
||||
};
|
||||
|
||||
struct kunit;
|
||||
|
||||
struct string_stream *alloc_string_stream(struct kunit *test, gfp_t gfp);
|
||||
struct string_stream *kunit_alloc_string_stream(struct kunit *test, gfp_t gfp);
|
||||
void kunit_free_string_stream(struct kunit *test, struct string_stream *stream);
|
||||
|
||||
struct string_stream *alloc_string_stream(gfp_t gfp);
|
||||
void free_string_stream(struct string_stream *stream);
|
||||
|
||||
int __printf(2, 3) string_stream_add(struct string_stream *stream,
|
||||
const char *fmt, ...);
|
||||
@ -38,6 +42,8 @@ int __printf(2, 0) string_stream_vadd(struct string_stream *stream,
|
||||
const char *fmt,
|
||||
va_list args);
|
||||
|
||||
void string_stream_clear(struct string_stream *stream);
|
||||
|
||||
char *string_stream_get_string(struct string_stream *stream);
|
||||
|
||||
int string_stream_append(struct string_stream *stream,
|
||||
@ -47,4 +53,10 @@ bool string_stream_is_empty(struct string_stream *stream);
|
||||
|
||||
void string_stream_destroy(struct string_stream *stream);
|
||||
|
||||
static inline void string_stream_set_append_newlines(struct string_stream *stream,
|
||||
bool append_newlines)
|
||||
{
|
||||
stream->append_newlines = append_newlines;
|
||||
}
|
||||
|
||||
#endif /* _KUNIT_STRING_STREAM_H */
|
||||
|
||||
@ -109,51 +109,17 @@ static void kunit_print_test_stats(struct kunit *test,
|
||||
stats.total);
|
||||
}
|
||||
|
||||
/**
|
||||
* kunit_log_newline() - Add newline to the end of log if one is not
|
||||
* already present.
|
||||
* @log: The log to add the newline to.
|
||||
*/
|
||||
static void kunit_log_newline(char *log)
|
||||
{
|
||||
int log_len, len_left;
|
||||
|
||||
log_len = strlen(log);
|
||||
len_left = KUNIT_LOG_SIZE - log_len - 1;
|
||||
|
||||
if (log_len > 0 && log[log_len - 1] != '\n')
|
||||
strncat(log, "\n", len_left);
|
||||
}
|
||||
|
||||
/*
|
||||
* Append formatted message to log, size of which is limited to
|
||||
* KUNIT_LOG_SIZE bytes (including null terminating byte).
|
||||
*/
|
||||
void kunit_log_append(char *log, const char *fmt, ...)
|
||||
/* Append formatted message to log. */
|
||||
void kunit_log_append(struct string_stream *log, const char *fmt, ...)
|
||||
{
|
||||
va_list args;
|
||||
int len, log_len, len_left;
|
||||
|
||||
if (!log)
|
||||
return;
|
||||
|
||||
log_len = strlen(log);
|
||||
len_left = KUNIT_LOG_SIZE - log_len - 1;
|
||||
if (len_left <= 0)
|
||||
return;
|
||||
|
||||
/* Evaluate length of line to add to log */
|
||||
va_start(args, fmt);
|
||||
len = vsnprintf(NULL, 0, fmt, args) + 1;
|
||||
string_stream_vadd(log, fmt, args);
|
||||
va_end(args);
|
||||
|
||||
/* Print formatted line to the log */
|
||||
va_start(args, fmt);
|
||||
vsnprintf(log + log_len, min(len, len_left), fmt, args);
|
||||
va_end(args);
|
||||
|
||||
/* Add newline to end of log if not already present. */
|
||||
kunit_log_newline(log);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(kunit_log_append);
|
||||
|
||||
@ -296,7 +262,7 @@ static void kunit_print_string_stream(struct kunit *test,
|
||||
kunit_err(test, "\n");
|
||||
} else {
|
||||
kunit_err(test, "%s", buf);
|
||||
kunit_kfree(test, buf);
|
||||
kfree(buf);
|
||||
}
|
||||
}
|
||||
|
||||
@ -308,7 +274,7 @@ static void kunit_fail(struct kunit *test, const struct kunit_loc *loc,
|
||||
|
||||
kunit_set_failure(test);
|
||||
|
||||
stream = alloc_string_stream(test, GFP_KERNEL);
|
||||
stream = kunit_alloc_string_stream(test, GFP_KERNEL);
|
||||
if (IS_ERR(stream)) {
|
||||
WARN(true,
|
||||
"Could not allocate stream to print failed assertion in %s:%d\n",
|
||||
@ -322,7 +288,7 @@ static void kunit_fail(struct kunit *test, const struct kunit_loc *loc,
|
||||
|
||||
kunit_print_string_stream(test, stream);
|
||||
|
||||
string_stream_destroy(stream);
|
||||
kunit_free_string_stream(test, stream);
|
||||
}
|
||||
|
||||
void __noreturn __kunit_abort(struct kunit *test)
|
||||
@ -359,14 +325,14 @@ void __kunit_do_failed_assertion(struct kunit *test,
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(__kunit_do_failed_assertion);
|
||||
|
||||
void kunit_init_test(struct kunit *test, const char *name, char *log)
|
||||
void kunit_init_test(struct kunit *test, const char *name, struct string_stream *log)
|
||||
{
|
||||
spin_lock_init(&test->lock);
|
||||
INIT_LIST_HEAD(&test->resources);
|
||||
test->name = name;
|
||||
test->log = log;
|
||||
if (test->log)
|
||||
test->log[0] = '\0';
|
||||
string_stream_clear(log);
|
||||
test->status = KUNIT_SUCCESS;
|
||||
test->status_comment[0] = '\0';
|
||||
}
|
||||
@ -648,12 +614,14 @@ int kunit_run_tests(struct kunit_suite *suite)
|
||||
param_desc,
|
||||
test.status_comment);
|
||||
|
||||
kunit_update_stats(¶m_stats, test.status);
|
||||
|
||||
/* Get next param. */
|
||||
param_desc[0] = '\0';
|
||||
test.param_value = test_case->generate_params(test.param_value, param_desc);
|
||||
test.param_index++;
|
||||
|
||||
kunit_update_stats(¶m_stats, test.status);
|
||||
test.status = KUNIT_SUCCESS;
|
||||
test.status_comment[0] = '\0';
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user