/* SPDX-License-Identifier: GPL-2.0 */ /* * Base unit test (KUnit) API. * * Copyright (C) 2019, Google LLC. * Author: Brendan Higgins */ #ifndef _KUNIT_TEST_H #define _KUNIT_TEST_H #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct kunit_resource; typedef int (*kunit_resource_init_t)(struct kunit_resource *, void *); typedef void (*kunit_resource_free_t)(struct kunit_resource *); /** * struct kunit_resource - represents a *test managed resource* * @data: for the user to store arbitrary data. * @name: optional name * @free: a user supplied function to free the resource. Populated by * kunit_resource_alloc(). * * Represents a *test managed resource*, a resource which will automatically be * cleaned up at the end of a test case. * * Resources are reference counted so if a resource is retrieved via * kunit_alloc_and_get_resource() or kunit_find_resource(), we need * to call kunit_put_resource() to reduce the resource reference count * when finished with it. Note that kunit_alloc_resource() does not require a * kunit_resource_put() because it does not retrieve the resource itself. * * Example: * * .. code-block:: c * * struct kunit_kmalloc_params { * size_t size; * gfp_t gfp; * }; * * static int kunit_kmalloc_init(struct kunit_resource *res, void *context) * { * struct kunit_kmalloc_params *params = context; * res->data = kmalloc(params->size, params->gfp); * * if (!res->data) * return -ENOMEM; * * return 0; * } * * static void kunit_kmalloc_free(struct kunit_resource *res) * { * kfree(res->data); * } * * void *kunit_kmalloc(struct kunit *test, size_t size, gfp_t gfp) * { * struct kunit_kmalloc_params params; * * params.size = size; * params.gfp = gfp; * * return kunit_alloc_resource(test, kunit_kmalloc_init, * kunit_kmalloc_free, ¶ms); * } * * Resources can also be named, with lookup/removal done on a name * basis also. kunit_add_named_resource(), kunit_find_named_resource() * and kunit_destroy_named_resource(). Resource names must be * unique within the test instance. */ struct kunit_resource { void *data; const char *name; kunit_resource_free_t free; /* private: internal use only. */ struct kref refcount; struct list_head node; }; struct kunit; /* Size of log associated with test. */ #define KUNIT_LOG_SIZE 512 /* Maximum size of parameter description string. */ #define KUNIT_PARAM_DESC_SIZE 128 /* Maximum size of a status comment. */ #define KUNIT_STATUS_COMMENT_SIZE 256 /* * TAP specifies subtest stream indentation of 4 spaces, 8 spaces for a * sub-subtest. See the "Subtests" section in * https://node-tap.org/tap-protocol/ */ #define KUNIT_SUBTEST_INDENT " " #define KUNIT_SUBSUBTEST_INDENT " " /** * enum kunit_status - Type of result for a test or test suite * @KUNIT_SUCCESS: Denotes the test suite has not failed nor been skipped * @KUNIT_FAILURE: Denotes the test has failed. * @KUNIT_SKIPPED: Denotes the test has been skipped. */ enum kunit_status { KUNIT_SUCCESS, KUNIT_FAILURE, KUNIT_SKIPPED, }; /** * struct kunit_case - represents an individual test case. * * @run_case: the function representing the actual test case. * @name: the name of the test case. * @generate_params: the generator function for parameterized tests. * * A test case is a function with the signature, * ``void (*)(struct kunit *)`` * that makes expectations and assertions (see KUNIT_EXPECT_TRUE() and * KUNIT_ASSERT_TRUE()) about code under test. Each test case is associated * with a &struct kunit_suite and will be run after the suite's init * function and followed by the suite's exit function. * * A test case should be static and should only be created with the * KUNIT_CASE() macro; additionally, every array of test cases should be * terminated with an empty test case. * * Example: * * .. code-block:: c * * void add_test_basic(struct kunit *test) * { * KUNIT_EXPECT_EQ(test, 1, add(1, 0)); * KUNIT_EXPECT_EQ(test, 2, add(1, 1)); * KUNIT_EXPECT_EQ(test, 0, add(-1, 1)); * KUNIT_EXPECT_EQ(test, INT_MAX, add(0, INT_MAX)); * KUNIT_EXPECT_EQ(test, -1, add(INT_MAX, INT_MIN)); * } * * static struct kunit_case example_test_cases[] = { * KUNIT_CASE(add_test_basic), * {} * }; * */ struct kunit_case { void (*run_case)(struct kunit *test); const char *name; const void* (*generate_params)(const void *prev, char *desc); /* private: internal use only. */ enum kunit_status status; char *log; }; static inline char *kunit_status_to_ok_not_ok(enum kunit_status status) { switch (status) { case KUNIT_SKIPPED: case KUNIT_SUCCESS: return "ok"; case KUNIT_FAILURE: return "not ok"; } return "invalid"; } /** * KUNIT_CASE - A helper for creating a &struct kunit_case * * @test_name: a reference to a test case function. * * Takes a symbol for a function representing a test case and creates a * &struct kunit_case object from it. See the documentation for * &struct kunit_case for an example on how to use it. */ #define KUNIT_CASE(test_name) { .run_case = test_name, .name = #test_name } /** * KUNIT_CASE_PARAM - A helper for creation a parameterized &struct kunit_case * * @test_name: a reference to a test case function. * @gen_params: a reference to a parameter generator function. * * The generator function:: * * const void* gen_params(const void *prev, char *desc) * * is used to lazily generate a series of arbitrarily typed values that fit into * a void*. The argument @prev is the previously returned value, which should be * used to derive the next value; @prev is set to NULL on the initial generator * call. When no more values are available, the generator must return NULL. * Optionally write a string into @desc (size of KUNIT_PARAM_DESC_SIZE) * describing the parameter. */ #define KUNIT_CASE_PARAM(test_name, gen_params) \ { .run_case = test_name, .name = #test_name, \ .generate_params = gen_params } /** * struct kunit_suite - describes a related collection of &struct kunit_case * * @name: the name of the test. Purely informational. * @init: called before every test case. * @exit: called after every test case. * @test_cases: a null terminated array of test cases. * * A kunit_suite is a collection of related &struct kunit_case s, such that * @init is called before every test case and @exit is called after every * test case, similar to the notion of a *test fixture* or a *test class* * in other unit testing frameworks like JUnit or Googletest. * * Every &struct kunit_case must be associated with a kunit_suite for KUnit * to run it. */ struct kunit_suite { const char name[256]; int (*init)(struct kunit *test); void (*exit)(struct kunit *test); struct kunit_case *test_cases; /* private: internal use only */ char status_comment[KUNIT_STATUS_COMMENT_SIZE]; struct dentry *debugfs; char *log; }; /** * struct kunit - represents a running instance of a test. * * @priv: for user to store arbitrary data. Commonly used to pass data * created in the init function (see &struct kunit_suite). * * Used to store information about the current context under which the test * is running. Most of this data is private and should only be accessed * indirectly via public functions; the one exception is @priv which can be * used by the test writer to store arbitrary data. */ struct kunit { void *priv; /* private: internal use only. */ const char *name; /* Read only after initialization! */ char *log; /* Points at case log after initialization */ struct kunit_try_catch try_catch; /* param_value is the current parameter value for a test case. */ const void *param_value; /* param_index stores the index of the parameter in parameterized tests. */ int param_index; /* * success starts as true, and may only be set to false during a * test case; thus, it is safe to update this across multiple * threads using WRITE_ONCE; however, as a consequence, it may only * be read after the test case finishes once all threads associated * with the test case have terminated. */ spinlock_t lock; /* Guards all mutable test state. */ enum kunit_status status; /* Read only after test_case finishes! */ /* * Because resources is a list that may be updated multiple times (with * new resources) from any thread associated with a test case, we must * protect it with some type of lock. */ struct list_head resources; /* Protected by lock. */ char status_comment[KUNIT_STATUS_COMMENT_SIZE]; }; static inline void kunit_set_failure(struct kunit *test) { WRITE_ONCE(test->status, KUNIT_FAILURE); } void kunit_init_test(struct kunit *test, const char *name, char *log); int kunit_run_tests(struct kunit_suite *suite); size_t kunit_suite_num_test_cases(struct kunit_suite *suite); unsigned int kunit_test_case_num(struct kunit_suite *suite, struct kunit_case *test_case); int __kunit_test_suites_init(struct kunit_suite * const * const suites); void __kunit_test_suites_exit(struct kunit_suite **suites); #if IS_BUILTIN(CONFIG_KUNIT) int kunit_run_all_tests(void); #else static inline int kunit_run_all_tests(void) { return 0; } #endif /* IS_BUILTIN(CONFIG_KUNIT) */ #ifdef MODULE /** * kunit_test_suites_for_module() - used to register one or more * &struct kunit_suite with KUnit. * * @__suites: a statically allocated list of &struct kunit_suite. * * Registers @__suites with the test framework. See &struct kunit_suite for * more information. * * If a test suite is built-in, module_init() gets translated into * an initcall which we don't want as the idea is that for builtins * the executor will manage execution. So ensure we do not define * module_{init|exit} functions for the builtin case when registering * suites via kunit_test_suites() below. */ #define kunit_test_suites_for_module(__suites) \ static int __init kunit_test_suites_init(void) \ { \ return __kunit_test_suites_init(__suites); \ } \ module_init(kunit_test_suites_init); \ \ static void __exit kunit_test_suites_exit(void) \ { \ return __kunit_test_suites_exit(__suites); \ } \ module_exit(kunit_test_suites_exit) #else #define kunit_test_suites_for_module(__suites) #endif /* MODULE */ #define __kunit_test_suites(unique_array, unique_suites, ...) \ static struct kunit_suite *unique_array[] = { __VA_ARGS__, NULL }; \ kunit_test_suites_for_module(unique_array); \ static struct kunit_suite **unique_suites \ __used __section(".kunit_test_suites") = unique_array /** * kunit_test_suites() - used to register one or more &struct kunit_suite * with KUnit. * * @__suites: a statically allocated list of &struct kunit_suite. * * Registers @suites with the test framework. See &struct kunit_suite for * more information. * * When builtin, KUnit tests are all run via executor; this is done * by placing the array of struct kunit_suite * in the .kunit_test_suites * ELF section. * * An alternative is to build the tests as a module. Because modules do not * support multiple initcall()s, we need to initialize an array of suites for a * module. * */ #define kunit_test_suites(__suites...) \ __kunit_test_suites(__UNIQUE_ID(array), \ __UNIQUE_ID(suites), \ ##__suites) #define kunit_test_suite(suite) kunit_test_suites(&suite) #define kunit_suite_for_each_test_case(suite, test_case) \ for (test_case = suite->test_cases; test_case->run_case; test_case++) enum kunit_status kunit_suite_has_succeeded(struct kunit_suite *suite); /* * Like kunit_alloc_resource() below, but returns the struct kunit_resource * object that contains the allocation. This is mostly for testing purposes. */ struct kunit_resource *kunit_alloc_and_get_resource(struct kunit *test, kunit_resource_init_t init, kunit_resource_free_t free, gfp_t internal_gfp, void *context); /** * kunit_get_resource() - Hold resource for use. Should not need to be used * by most users as we automatically get resources * retrieved by kunit_find_resource*(). * @res: resource */ static inline void kunit_get_resource(struct kunit_resource *res) { kref_get(&res->refcount); } /* * Called when refcount reaches zero via kunit_put_resources(); * should not be called directly. */ static inline void kunit_release_resource(struct kref *kref) { struct kunit_resource *res = container_of(kref, struct kunit_resource, refcount); /* If free function is defined, resource was dynamically allocated. */ if (res->free) { res->free(res); kfree(res); } } /** * kunit_put_resource() - When caller is done with retrieved resource, * kunit_put_resource() should be called to drop * reference count. The resource list maintains * a reference count on resources, so if no users * are utilizing a resource and it is removed from * the resource list, it will be freed via the * associated free function (if any). Only * needs to be used if we alloc_and_get() or * find() resource. * @res: resource */ static inline void kunit_put_resource(struct kunit_resource *res) { kref_put(&res->refcount, kunit_release_resource); } /** * kunit_add_resource() - Add a *test managed resource*. * @test: The test context object. * @init: a user-supplied function to initialize the result (if needed). If * none is supplied, the resource data value is simply set to @data. * If an init function is supplied, @data is passed to it instead. * @free: a user-supplied function to free the resource (if needed). * @res: The resource. * @data: value to pass to init function or set in resource data field. */ int kunit_add_resource(struct kunit *test, kunit_resource_init_t init, kunit_resource_free_t free, struct kunit_resource *res, void *data); /** * kunit_add_named_resource() - Add a named *test managed resource*. * @test: The test context object. * @init: a user-supplied function to initialize the resource data, if needed. * @free: a user-supplied function to free the resource data, if needed. * @res: The resource. * @name: name to be set for resource. * @data: value to pass to init function or set in resource data field. */ int kunit_add_named_resource(struct kunit *test, kunit_resource_init_t init, kunit_resource_free_t free, struct kunit_resource *res, const char *name, void *data); /** * kunit_alloc_resource() - Allocates a *test managed resource*. * @test: The test context object. * @init: a user supplied function to initialize the resource. * @free: a user supplied function to free the resource. * @internal_gfp: gfp to use for internal allocations, if unsure, use GFP_KERNEL * @context: for the user to pass in arbitrary data to the init function. * * Allocates a *test managed resource*, a resource which will automatically be * cleaned up at the end of a test case. See &struct kunit_resource for an * example. * * Note: KUnit needs to allocate memory for a kunit_resource object. You must * specify an @internal_gfp that is compatible with the use context of your * resource. */ static inline void *kunit_alloc_resource(struct kunit *test, kunit_resource_init_t init, kunit_resource_free_t free, gfp_t internal_gfp, void *context) { struct kunit_resource *res; res = kzalloc(sizeof(*res), internal_gfp); if (!res) return NULL; if (!kunit_add_resource(test, init, free, res, context)) return res->data; return NULL; } typedef bool (*kunit_resource_match_t)(struct kunit *test, struct kunit_resource *res, void *match_data); /** * kunit_resource_instance_match() - Match a resource with the same instance. * @test: Test case to which the resource belongs. * @res: The resource. * @match_data: The resource pointer to match against. * * An instance of kunit_resource_match_t that matches a resource whose * allocation matches @match_data. */ static inline bool kunit_resource_instance_match(struct kunit *test, struct kunit_resource *res, void *match_data) { return res->data == match_data; } /** * kunit_resource_name_match() - Match a resource with the same name. * @test: Test case to which the resource belongs. * @res: The resource. * @match_name: The name to match against. */ static inline bool kunit_resource_name_match(struct kunit *test, struct kunit_resource *res, void *match_name) { return res->name && strcmp(res->name, match_name) == 0; } /** * kunit_find_resource() - Find a resource using match function/data. * @test: Test case to which the resource belongs. * @match: match function to be applied to resources/match data. * @match_data: data to be used in matching. */ static inline struct kunit_resource * kunit_find_resource(struct kunit *test, kunit_resource_match_t match, void *match_data) { struct kunit_resource *res, *found = NULL; unsigned long flags; spin_lock_irqsave(&test->lock, flags); list_for_each_entry_reverse(res, &test->resources, node) { if (match(test, res, (void *)match_data)) { found = res; kunit_get_resource(found); break; } } spin_unlock_irqrestore(&test->lock, flags); return found; } /** * kunit_find_named_resource() - Find a resource using match name. * @test: Test case to which the resource belongs. * @name: match name. */ static inline struct kunit_resource * kunit_find_named_resource(struct kunit *test, const char *name) { return kunit_find_resource(test, kunit_resource_name_match, (void *)name); } /** * kunit_destroy_resource() - Find a kunit_resource and destroy it. * @test: Test case to which the resource belongs. * @match: Match function. Returns whether a given resource matches @match_data. * @match_data: Data passed into @match. * * RETURNS: * 0 if kunit_resource is found and freed, -ENOENT if not found. */ int kunit_destroy_resource(struct kunit *test, kunit_resource_match_t match, void *match_data); static inline int kunit_destroy_named_resource(struct kunit *test, const char *name) { return kunit_destroy_resource(test, kunit_resource_name_match, (void *)name); } /** * kunit_remove_resource() - remove resource from resource list associated with * test. * @test: The test context object. * @res: The resource to be removed. * * Note that the resource will not be immediately freed since it is likely * the caller has a reference to it via alloc_and_get() or find(); * in this case a final call to kunit_put_resource() is required. */ void kunit_remove_resource(struct kunit *test, struct kunit_resource *res); /** * kunit_kmalloc_array() - Like kmalloc_array() except the allocation is *test managed*. * @test: The test context object. * @n: number of elements. * @size: The size in bytes of the desired memory. * @gfp: flags passed to underlying kmalloc(). * * Just like `kmalloc_array(...)`, except the allocation is managed by the test case * and is automatically cleaned up after the test case concludes. See &struct * kunit_resource for more information. */ void *kunit_kmalloc_array(struct kunit *test, size_t n, size_t size, gfp_t gfp); /** * kunit_kmalloc() - Like kmalloc() except the allocation is *test managed*. * @test: The test context object. * @size: The size in bytes of the desired memory. * @gfp: flags passed to underlying kmalloc(). * * See kmalloc() and kunit_kmalloc_array() for more information. */ static inline void *kunit_kmalloc(struct kunit *test, size_t size, gfp_t gfp) { return kunit_kmalloc_array(test, 1, size, gfp); } /** * kunit_kfree() - Like kfree except for allocations managed by KUnit. * @test: The test case to which the resource belongs. * @ptr: The memory allocation to free. */ void kunit_kfree(struct kunit *test, const void *ptr); /** * kunit_kzalloc() - Just like kunit_kmalloc(), but zeroes the allocation. * @test: The test context object. * @size: The size in bytes of the desired memory. * @gfp: flags passed to underlying kmalloc(). * * See kzalloc() and kunit_kmalloc_array() for more information. */ static inline void *kunit_kzalloc(struct kunit *test, size_t size, gfp_t gfp) { return kunit_kmalloc(test, size, gfp | __GFP_ZERO); } /** * kunit_kcalloc() - Just like kunit_kmalloc_array(), but zeroes the allocation. * @test: The test context object. * @n: number of elements. * @size: The size in bytes of the desired memory. * @gfp: flags passed to underlying kmalloc(). * * See kcalloc() and kunit_kmalloc_array() for more information. */ static inline void *kunit_kcalloc(struct kunit *test, size_t n, size_t size, gfp_t gfp) { return kunit_kmalloc_array(test, n, size, gfp | __GFP_ZERO); } void kunit_cleanup(struct kunit *test); void __printf(2, 3) kunit_log_append(char *log, const char *fmt, ...); /** * kunit_mark_skipped() - Marks @test_or_suite as skipped * * @test_or_suite: The test context object. * @fmt: A printk() style format string. * * Marks the test as skipped. @fmt is given output as the test status * comment, typically the reason the test was skipped. * * Test execution continues after kunit_mark_skipped() is called. */ #define kunit_mark_skipped(test_or_suite, fmt, ...) \ do { \ WRITE_ONCE((test_or_suite)->status, KUNIT_SKIPPED); \ scnprintf((test_or_suite)->status_comment, \ KUNIT_STATUS_COMMENT_SIZE, \ fmt, ##__VA_ARGS__); \ } while (0) /** * kunit_skip() - Marks @test_or_suite as skipped * * @test_or_suite: The test context object. * @fmt: A printk() style format string. * * Skips the test. @fmt is given output as the test status * comment, typically the reason the test was skipped. * * Test execution is halted after kunit_skip() is called. */ #define kunit_skip(test_or_suite, fmt, ...) \ do { \ kunit_mark_skipped((test_or_suite), fmt, ##__VA_ARGS__);\ kunit_try_catch_throw(&((test_or_suite)->try_catch)); \ } while (0) /* * printk and log to per-test or per-suite log buffer. Logging only done * if CONFIG_KUNIT_DEBUGFS is 'y'; if it is 'n', no log is allocated/used. */ #define kunit_log(lvl, test_or_suite, fmt, ...) \ do { \ printk(lvl fmt, ##__VA_ARGS__); \ kunit_log_append((test_or_suite)->log, fmt "\n", \ ##__VA_ARGS__); \ } while (0) #define kunit_printk(lvl, test, fmt, ...) \ kunit_log(lvl, test, KUNIT_SUBTEST_INDENT "# %s: " fmt, \ (test)->name, ##__VA_ARGS__) /** * kunit_info() - Prints an INFO level message associated with @test. * * @test: The test context object. * @fmt: A printk() style format string. * * Prints an info level message associated with the test suite being run. * Takes a variable number of format parameters just like printk(). */ #define kunit_info(test, fmt, ...) \ kunit_printk(KERN_INFO, test, fmt, ##__VA_ARGS__) /** * kunit_warn() - Prints a WARN level message associated with @test. * * @test: The test context object. * @fmt: A printk() style format string. * * Prints a warning level message. */ #define kunit_warn(test, fmt, ...) \ kunit_printk(KERN_WARNING, test, fmt, ##__VA_ARGS__) /** * kunit_err() - Prints an ERROR level message associated with @test. * * @test: The test context object. * @fmt: A printk() style format string. * * Prints an error level message. */ #define kunit_err(test, fmt, ...) \ kunit_printk(KERN_ERR, test, fmt, ##__VA_ARGS__) /** * KUNIT_SUCCEED() - A no-op expectation. Only exists for code clarity. * @test: The test context object. * * The opposite of KUNIT_FAIL(), it is an expectation that cannot fail. In other * words, it does nothing and only exists for code clarity. See * KUNIT_EXPECT_TRUE() for more information. */ #define KUNIT_SUCCEED(test) do {} while (0) void kunit_do_failed_assertion(struct kunit *test, const struct kunit_loc *loc, enum kunit_assert_type type, struct kunit_assert *assert, const char *fmt, ...); #define KUNIT_ASSERTION(test, assert_type, pass, assert_class, INITIALIZER, fmt, ...) do { \ if (unlikely(!(pass))) { \ static const struct kunit_loc loc = KUNIT_CURRENT_LOC; \ struct assert_class __assertion = INITIALIZER; \ kunit_do_failed_assertion(test, \ &loc, \ assert_type, \ &__assertion.assert, \ fmt, \ ##__VA_ARGS__); \ } \ } while (0) #define KUNIT_FAIL_ASSERTION(test, assert_type, fmt, ...) \ KUNIT_ASSERTION(test, \ assert_type, \ false, \ kunit_fail_assert, \ KUNIT_INIT_FAIL_ASSERT_STRUCT, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_FAIL() - Always causes a test to fail when evaluated. * @test: The test context object. * @fmt: an informational message to be printed when the assertion is made. * @...: string format arguments. * * The opposite of KUNIT_SUCCEED(), it is an expectation that always fails. In * other words, it always results in a failed expectation, and consequently * always causes the test case to fail when evaluated. See KUNIT_EXPECT_TRUE() * for more information. */ #define KUNIT_FAIL(test, fmt, ...) \ KUNIT_FAIL_ASSERTION(test, \ KUNIT_EXPECTATION, \ fmt, \ ##__VA_ARGS__) #define KUNIT_UNARY_ASSERTION(test, \ assert_type, \ condition, \ expected_true, \ fmt, \ ...) \ KUNIT_ASSERTION(test, \ assert_type, \ !!(condition) == !!expected_true, \ kunit_unary_assert, \ KUNIT_INIT_UNARY_ASSERT_STRUCT(#condition, \ expected_true), \ fmt, \ ##__VA_ARGS__) #define KUNIT_TRUE_MSG_ASSERTION(test, assert_type, condition, fmt, ...) \ KUNIT_UNARY_ASSERTION(test, \ assert_type, \ condition, \ true, \ fmt, \ ##__VA_ARGS__) #define KUNIT_FALSE_MSG_ASSERTION(test, assert_type, condition, fmt, ...) \ KUNIT_UNARY_ASSERTION(test, \ assert_type, \ condition, \ false, \ fmt, \ ##__VA_ARGS__) /* * A factory macro for defining the assertions and expectations for the basic * comparisons defined for the built in types. * * Unfortunately, there is no common type that all types can be promoted to for * which all the binary operators behave the same way as for the actual types * (for example, there is no type that long long and unsigned long long can * both be cast to where the comparison result is preserved for all values). So * the best we can do is do the comparison in the original types and then coerce * everything to long long for printing; this way, the comparison behaves * correctly and the printed out value usually makes sense without * interpretation, but can always be interpreted to figure out the actual * value. */ #define KUNIT_BASE_BINARY_ASSERTION(test, \ assert_class, \ format_func, \ assert_type, \ left, \ op, \ right, \ fmt, \ ...) \ do { \ typeof(left) __left = (left); \ typeof(right) __right = (right); \ static const struct kunit_binary_assert_text __text = { \ .operation = #op, \ .left_text = #left, \ .right_text = #right, \ }; \ \ KUNIT_ASSERTION(test, \ assert_type, \ __left op __right, \ assert_class, \ KUNIT_INIT_BINARY_ASSERT_STRUCT(format_func, \ &__text, \ __left, \ __right), \ fmt, \ ##__VA_ARGS__); \ } while (0) #define KUNIT_BINARY_INT_ASSERTION(test, \ assert_type, \ left, \ op, \ right, \ fmt, \ ...) \ KUNIT_BASE_BINARY_ASSERTION(test, \ kunit_binary_assert, \ kunit_binary_assert_format, \ assert_type, \ left, op, right, \ fmt, \ ##__VA_ARGS__) #define KUNIT_BINARY_PTR_ASSERTION(test, \ assert_type, \ left, \ op, \ right, \ fmt, \ ...) \ KUNIT_BASE_BINARY_ASSERTION(test, \ kunit_binary_ptr_assert, \ kunit_binary_ptr_assert_format, \ assert_type, \ left, op, right, \ fmt, \ ##__VA_ARGS__) #define KUNIT_BINARY_STR_ASSERTION(test, \ assert_type, \ left, \ op, \ right, \ fmt, \ ...) \ do { \ const char *__left = (left); \ const char *__right = (right); \ static const struct kunit_binary_assert_text __text = { \ .operation = #op, \ .left_text = #left, \ .right_text = #right, \ }; \ \ KUNIT_ASSERTION(test, \ assert_type, \ strcmp(__left, __right) op 0, \ kunit_binary_str_assert, \ KUNIT_INIT_BINARY_ASSERT_STRUCT(kunit_binary_str_assert_format,\ &__text, \ __left, \ __right), \ fmt, \ ##__VA_ARGS__); \ } while (0) #define KUNIT_PTR_NOT_ERR_OR_NULL_MSG_ASSERTION(test, \ assert_type, \ ptr, \ fmt, \ ...) \ do { \ typeof(ptr) __ptr = (ptr); \ \ KUNIT_ASSERTION(test, \ assert_type, \ !IS_ERR_OR_NULL(__ptr), \ kunit_ptr_not_err_assert, \ KUNIT_INIT_PTR_NOT_ERR_STRUCT(#ptr, \ __ptr), \ fmt, \ ##__VA_ARGS__); \ } while (0) /** * KUNIT_EXPECT_TRUE() - Causes a test failure when the expression is not true. * @test: The test context object. * @condition: an arbitrary boolean expression. The test fails when this does * not evaluate to true. * * This and expectations of the form `KUNIT_EXPECT_*` will cause the test case * to fail when the specified condition is not met; however, it will not prevent * the test case from continuing to run; this is otherwise known as an * *expectation failure*. */ #define KUNIT_EXPECT_TRUE(test, condition) \ KUNIT_EXPECT_TRUE_MSG(test, condition, NULL) #define KUNIT_EXPECT_TRUE_MSG(test, condition, fmt, ...) \ KUNIT_TRUE_MSG_ASSERTION(test, \ KUNIT_EXPECTATION, \ condition, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_EXPECT_FALSE() - Makes a test failure when the expression is not false. * @test: The test context object. * @condition: an arbitrary boolean expression. The test fails when this does * not evaluate to false. * * Sets an expectation that @condition evaluates to false. See * KUNIT_EXPECT_TRUE() for more information. */ #define KUNIT_EXPECT_FALSE(test, condition) \ KUNIT_EXPECT_FALSE_MSG(test, condition, NULL) #define KUNIT_EXPECT_FALSE_MSG(test, condition, fmt, ...) \ KUNIT_FALSE_MSG_ASSERTION(test, \ KUNIT_EXPECTATION, \ condition, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_EXPECT_EQ() - Sets an expectation that @left and @right are equal. * @test: The test context object. * @left: an arbitrary expression that evaluates to a primitive C type. * @right: an arbitrary expression that evaluates to a primitive C type. * * Sets an expectation that the values that @left and @right evaluate to are * equal. This is semantically equivalent to * KUNIT_EXPECT_TRUE(@test, (@left) == (@right)). See KUNIT_EXPECT_TRUE() for * more information. */ #define KUNIT_EXPECT_EQ(test, left, right) \ KUNIT_EXPECT_EQ_MSG(test, left, right, NULL) #define KUNIT_EXPECT_EQ_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_INT_ASSERTION(test, \ KUNIT_EXPECTATION, \ left, ==, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_EXPECT_PTR_EQ() - Expects that pointers @left and @right are equal. * @test: The test context object. * @left: an arbitrary expression that evaluates to a pointer. * @right: an arbitrary expression that evaluates to a pointer. * * Sets an expectation that the values that @left and @right evaluate to are * equal. This is semantically equivalent to * KUNIT_EXPECT_TRUE(@test, (@left) == (@right)). See KUNIT_EXPECT_TRUE() for * more information. */ #define KUNIT_EXPECT_PTR_EQ(test, left, right) \ KUNIT_EXPECT_PTR_EQ_MSG(test, left, right, NULL) #define KUNIT_EXPECT_PTR_EQ_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_PTR_ASSERTION(test, \ KUNIT_EXPECTATION, \ left, ==, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_EXPECT_NE() - An expectation that @left and @right are not equal. * @test: The test context object. * @left: an arbitrary expression that evaluates to a primitive C type. * @right: an arbitrary expression that evaluates to a primitive C type. * * Sets an expectation that the values that @left and @right evaluate to are not * equal. This is semantically equivalent to * KUNIT_EXPECT_TRUE(@test, (@left) != (@right)). See KUNIT_EXPECT_TRUE() for * more information. */ #define KUNIT_EXPECT_NE(test, left, right) \ KUNIT_EXPECT_NE_MSG(test, left, right, NULL) #define KUNIT_EXPECT_NE_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_INT_ASSERTION(test, \ KUNIT_EXPECTATION, \ left, !=, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_EXPECT_PTR_NE() - Expects that pointers @left and @right are not equal. * @test: The test context object. * @left: an arbitrary expression that evaluates to a pointer. * @right: an arbitrary expression that evaluates to a pointer. * * Sets an expectation that the values that @left and @right evaluate to are not * equal. This is semantically equivalent to * KUNIT_EXPECT_TRUE(@test, (@left) != (@right)). See KUNIT_EXPECT_TRUE() for * more information. */ #define KUNIT_EXPECT_PTR_NE(test, left, right) \ KUNIT_EXPECT_PTR_NE_MSG(test, left, right, NULL) #define KUNIT_EXPECT_PTR_NE_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_PTR_ASSERTION(test, \ KUNIT_EXPECTATION, \ left, !=, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_EXPECT_LT() - An expectation that @left is less than @right. * @test: The test context object. * @left: an arbitrary expression that evaluates to a primitive C type. * @right: an arbitrary expression that evaluates to a primitive C type. * * Sets an expectation that the value that @left evaluates to is less than the * value that @right evaluates to. This is semantically equivalent to * KUNIT_EXPECT_TRUE(@test, (@left) < (@right)). See KUNIT_EXPECT_TRUE() for * more information. */ #define KUNIT_EXPECT_LT(test, left, right) \ KUNIT_EXPECT_LT_MSG(test, left, right, NULL) #define KUNIT_EXPECT_LT_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_INT_ASSERTION(test, \ KUNIT_EXPECTATION, \ left, <, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_EXPECT_LE() - Expects that @left is less than or equal to @right. * @test: The test context object. * @left: an arbitrary expression that evaluates to a primitive C type. * @right: an arbitrary expression that evaluates to a primitive C type. * * Sets an expectation that the value that @left evaluates to is less than or * equal to the value that @right evaluates to. Semantically this is equivalent * to KUNIT_EXPECT_TRUE(@test, (@left) <= (@right)). See KUNIT_EXPECT_TRUE() for * more information. */ #define KUNIT_EXPECT_LE(test, left, right) \ KUNIT_EXPECT_LE_MSG(test, left, right, NULL) #define KUNIT_EXPECT_LE_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_INT_ASSERTION(test, \ KUNIT_ASSERTION, \ left, <=, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_EXPECT_GT() - An expectation that @left is greater than @right. * @test: The test context object. * @left: an arbitrary expression that evaluates to a primitive C type. * @right: an arbitrary expression that evaluates to a primitive C type. * * Sets an expectation that the value that @left evaluates to is greater than * the value that @right evaluates to. This is semantically equivalent to * KUNIT_EXPECT_TRUE(@test, (@left) > (@right)). See KUNIT_EXPECT_TRUE() for * more information. */ #define KUNIT_EXPECT_GT(test, left, right) \ KUNIT_EXPECT_GT_MSG(test, left, right, NULL) #define KUNIT_EXPECT_GT_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_INT_ASSERTION(test, \ KUNIT_EXPECTATION, \ left, >, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_EXPECT_GE() - Expects that @left is greater than or equal to @right. * @test: The test context object. * @left: an arbitrary expression that evaluates to a primitive C type. * @right: an arbitrary expression that evaluates to a primitive C type. * * Sets an expectation that the value that @left evaluates to is greater than * the value that @right evaluates to. This is semantically equivalent to * KUNIT_EXPECT_TRUE(@test, (@left) >= (@right)). See KUNIT_EXPECT_TRUE() for * more information. */ #define KUNIT_EXPECT_GE(test, left, right) \ KUNIT_EXPECT_GE_MSG(test, left, right, NULL) #define KUNIT_EXPECT_GE_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_INT_ASSERTION(test, \ KUNIT_EXPECTATION, \ left, >=, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_EXPECT_STREQ() - Expects that strings @left and @right are equal. * @test: The test context object. * @left: an arbitrary expression that evaluates to a null terminated string. * @right: an arbitrary expression that evaluates to a null terminated string. * * Sets an expectation that the values that @left and @right evaluate to are * equal. This is semantically equivalent to * KUNIT_EXPECT_TRUE(@test, !strcmp((@left), (@right))). See KUNIT_EXPECT_TRUE() * for more information. */ #define KUNIT_EXPECT_STREQ(test, left, right) \ KUNIT_EXPECT_STREQ_MSG(test, left, right, NULL) #define KUNIT_EXPECT_STREQ_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_STR_ASSERTION(test, \ KUNIT_EXPECTATION, \ left, ==, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_EXPECT_STRNEQ() - Expects that strings @left and @right are not equal. * @test: The test context object. * @left: an arbitrary expression that evaluates to a null terminated string. * @right: an arbitrary expression that evaluates to a null terminated string. * * Sets an expectation that the values that @left and @right evaluate to are * not equal. This is semantically equivalent to * KUNIT_EXPECT_TRUE(@test, strcmp((@left), (@right))). See KUNIT_EXPECT_TRUE() * for more information. */ #define KUNIT_EXPECT_STRNEQ(test, left, right) \ KUNIT_EXPECT_STRNEQ_MSG(test, left, right, NULL) #define KUNIT_EXPECT_STRNEQ_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_STR_ASSERTION(test, \ KUNIT_EXPECTATION, \ left, !=, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_EXPECT_NOT_ERR_OR_NULL() - Expects that @ptr is not null and not err. * @test: The test context object. * @ptr: an arbitrary pointer. * * Sets an expectation that the value that @ptr evaluates to is not null and not * an errno stored in a pointer. This is semantically equivalent to * KUNIT_EXPECT_TRUE(@test, !IS_ERR_OR_NULL(@ptr)). See KUNIT_EXPECT_TRUE() for * more information. */ #define KUNIT_EXPECT_NOT_ERR_OR_NULL(test, ptr) \ KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, ptr, NULL) #define KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, ptr, fmt, ...) \ KUNIT_PTR_NOT_ERR_OR_NULL_MSG_ASSERTION(test, \ KUNIT_EXPECTATION, \ ptr, \ fmt, \ ##__VA_ARGS__) #define KUNIT_ASSERT_FAILURE(test, fmt, ...) \ KUNIT_FAIL_ASSERTION(test, KUNIT_ASSERTION, fmt, ##__VA_ARGS__) /** * KUNIT_ASSERT_TRUE() - Sets an assertion that @condition is true. * @test: The test context object. * @condition: an arbitrary boolean expression. The test fails and aborts when * this does not evaluate to true. * * This and assertions of the form `KUNIT_ASSERT_*` will cause the test case to * fail *and immediately abort* when the specified condition is not met. Unlike * an expectation failure, it will prevent the test case from continuing to run; * this is otherwise known as an *assertion failure*. */ #define KUNIT_ASSERT_TRUE(test, condition) \ KUNIT_ASSERT_TRUE_MSG(test, condition, NULL) #define KUNIT_ASSERT_TRUE_MSG(test, condition, fmt, ...) \ KUNIT_TRUE_MSG_ASSERTION(test, \ KUNIT_ASSERTION, \ condition, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_ASSERT_FALSE() - Sets an assertion that @condition is false. * @test: The test context object. * @condition: an arbitrary boolean expression. * * Sets an assertion that the value that @condition evaluates to is false. This * is the same as KUNIT_EXPECT_FALSE(), except it causes an assertion failure * (see KUNIT_ASSERT_TRUE()) when the assertion is not met. */ #define KUNIT_ASSERT_FALSE(test, condition) \ KUNIT_ASSERT_FALSE_MSG(test, condition, NULL) #define KUNIT_ASSERT_FALSE_MSG(test, condition, fmt, ...) \ KUNIT_FALSE_MSG_ASSERTION(test, \ KUNIT_ASSERTION, \ condition, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_ASSERT_EQ() - Sets an assertion that @left and @right are equal. * @test: The test context object. * @left: an arbitrary expression that evaluates to a primitive C type. * @right: an arbitrary expression that evaluates to a primitive C type. * * Sets an assertion that the values that @left and @right evaluate to are * equal. This is the same as KUNIT_EXPECT_EQ(), except it causes an assertion * failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met. */ #define KUNIT_ASSERT_EQ(test, left, right) \ KUNIT_ASSERT_EQ_MSG(test, left, right, NULL) #define KUNIT_ASSERT_EQ_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_INT_ASSERTION(test, \ KUNIT_ASSERTION, \ left, ==, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_ASSERT_PTR_EQ() - Asserts that pointers @left and @right are equal. * @test: The test context object. * @left: an arbitrary expression that evaluates to a pointer. * @right: an arbitrary expression that evaluates to a pointer. * * Sets an assertion that the values that @left and @right evaluate to are * equal. This is the same as KUNIT_EXPECT_EQ(), except it causes an assertion * failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met. */ #define KUNIT_ASSERT_PTR_EQ(test, left, right) \ KUNIT_ASSERT_PTR_EQ_MSG(test, left, right, NULL) #define KUNIT_ASSERT_PTR_EQ_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_PTR_ASSERTION(test, \ KUNIT_ASSERTION, \ left, ==, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_ASSERT_NE() - An assertion that @left and @right are not equal. * @test: The test context object. * @left: an arbitrary expression that evaluates to a primitive C type. * @right: an arbitrary expression that evaluates to a primitive C type. * * Sets an assertion that the values that @left and @right evaluate to are not * equal. This is the same as KUNIT_EXPECT_NE(), except it causes an assertion * failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met. */ #define KUNIT_ASSERT_NE(test, left, right) \ KUNIT_ASSERT_NE_MSG(test, left, right, NULL) #define KUNIT_ASSERT_NE_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_INT_ASSERTION(test, \ KUNIT_ASSERTION, \ left, !=, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_ASSERT_PTR_NE() - Asserts that pointers @left and @right are not equal. * KUNIT_ASSERT_PTR_EQ() - Asserts that pointers @left and @right are equal. * @test: The test context object. * @left: an arbitrary expression that evaluates to a pointer. * @right: an arbitrary expression that evaluates to a pointer. * * Sets an assertion that the values that @left and @right evaluate to are not * equal. This is the same as KUNIT_EXPECT_NE(), except it causes an assertion * failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met. */ #define KUNIT_ASSERT_PTR_NE(test, left, right) \ KUNIT_ASSERT_PTR_NE_MSG(test, left, right, NULL) #define KUNIT_ASSERT_PTR_NE_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_PTR_ASSERTION(test, \ KUNIT_ASSERTION, \ left, !=, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_ASSERT_LT() - An assertion that @left is less than @right. * @test: The test context object. * @left: an arbitrary expression that evaluates to a primitive C type. * @right: an arbitrary expression that evaluates to a primitive C type. * * Sets an assertion that the value that @left evaluates to is less than the * value that @right evaluates to. This is the same as KUNIT_EXPECT_LT(), except * it causes an assertion failure (see KUNIT_ASSERT_TRUE()) when the assertion * is not met. */ #define KUNIT_ASSERT_LT(test, left, right) \ KUNIT_ASSERT_LT_MSG(test, left, right, NULL) #define KUNIT_ASSERT_LT_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_INT_ASSERTION(test, \ KUNIT_EXPECTATION, \ left, <, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_ASSERT_LE() - An assertion that @left is less than or equal to @right. * @test: The test context object. * @left: an arbitrary expression that evaluates to a primitive C type. * @right: an arbitrary expression that evaluates to a primitive C type. * * Sets an assertion that the value that @left evaluates to is less than or * equal to the value that @right evaluates to. This is the same as * KUNIT_EXPECT_LE(), except it causes an assertion failure (see * KUNIT_ASSERT_TRUE()) when the assertion is not met. */ #define KUNIT_ASSERT_LE(test, left, right) \ KUNIT_ASSERT_LE_MSG(test, left, right, NULL) #define KUNIT_ASSERT_LE_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_INT_ASSERTION(test, \ KUNIT_ASSERTION, \ left, <=, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_ASSERT_GT() - An assertion that @left is greater than @right. * @test: The test context object. * @left: an arbitrary expression that evaluates to a primitive C type. * @right: an arbitrary expression that evaluates to a primitive C type. * * Sets an assertion that the value that @left evaluates to is greater than the * value that @right evaluates to. This is the same as KUNIT_EXPECT_GT(), except * it causes an assertion failure (see KUNIT_ASSERT_TRUE()) when the assertion * is not met. */ #define KUNIT_ASSERT_GT(test, left, right) \ KUNIT_ASSERT_GT_MSG(test, left, right, NULL) #define KUNIT_ASSERT_GT_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_INT_ASSERTION(test, \ KUNIT_EXPECTATION, \ left, >, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_ASSERT_GE() - Assertion that @left is greater than or equal to @right. * @test: The test context object. * @left: an arbitrary expression that evaluates to a primitive C type. * @right: an arbitrary expression that evaluates to a primitive C type. * * Sets an assertion that the value that @left evaluates to is greater than the * value that @right evaluates to. This is the same as KUNIT_EXPECT_GE(), except * it causes an assertion failure (see KUNIT_ASSERT_TRUE()) when the assertion * is not met. */ #define KUNIT_ASSERT_GE(test, left, right) \ KUNIT_ASSERT_GE_MSG(test, left, right, NULL) #define KUNIT_ASSERT_GE_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_INT_ASSERTION(test, \ KUNIT_ASSERTION, \ left, >=, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_ASSERT_STREQ() - An assertion that strings @left and @right are equal. * @test: The test context object. * @left: an arbitrary expression that evaluates to a null terminated string. * @right: an arbitrary expression that evaluates to a null terminated string. * * Sets an assertion that the values that @left and @right evaluate to are * equal. This is the same as KUNIT_EXPECT_STREQ(), except it causes an * assertion failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met. */ #define KUNIT_ASSERT_STREQ(test, left, right) \ KUNIT_ASSERT_STREQ_MSG(test, left, right, NULL) #define KUNIT_ASSERT_STREQ_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_STR_ASSERTION(test, \ KUNIT_ASSERTION, \ left, ==, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_ASSERT_STRNEQ() - Expects that strings @left and @right are not equal. * @test: The test context object. * @left: an arbitrary expression that evaluates to a null terminated string. * @right: an arbitrary expression that evaluates to a null terminated string. * * Sets an expectation that the values that @left and @right evaluate to are * not equal. This is semantically equivalent to * KUNIT_ASSERT_TRUE(@test, strcmp((@left), (@right))). See KUNIT_ASSERT_TRUE() * for more information. */ #define KUNIT_ASSERT_STRNEQ(test, left, right) \ KUNIT_ASSERT_STRNEQ_MSG(test, left, right, NULL) #define KUNIT_ASSERT_STRNEQ_MSG(test, left, right, fmt, ...) \ KUNIT_BINARY_STR_ASSERTION(test, \ KUNIT_ASSERTION, \ left, !=, right, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_ASSERT_NOT_ERR_OR_NULL() - Assertion that @ptr is not null and not err. * @test: The test context object. * @ptr: an arbitrary pointer. * * Sets an assertion that the value that @ptr evaluates to is not null and not * an errno stored in a pointer. This is the same as * KUNIT_EXPECT_NOT_ERR_OR_NULL(), except it causes an assertion failure (see * KUNIT_ASSERT_TRUE()) when the assertion is not met. */ #define KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr) \ KUNIT_ASSERT_NOT_ERR_OR_NULL_MSG(test, ptr, NULL) #define KUNIT_ASSERT_NOT_ERR_OR_NULL_MSG(test, ptr, fmt, ...) \ KUNIT_PTR_NOT_ERR_OR_NULL_MSG_ASSERTION(test, \ KUNIT_ASSERTION, \ ptr, \ fmt, \ ##__VA_ARGS__) /** * KUNIT_ARRAY_PARAM() - Define test parameter generator from an array. * @name: prefix for the test parameter generator function. * @array: array of test parameters. * @get_desc: function to convert param to description; NULL to use default * * Define function @name_gen_params which uses @array to generate parameters. */ #define KUNIT_ARRAY_PARAM(name, array, get_desc) \ static const void *name##_gen_params(const void *prev, char *desc) \ { \ typeof((array)[0]) *__next = prev ? ((typeof(__next)) prev) + 1 : (array); \ if (__next - (array) < ARRAY_SIZE((array))) { \ void (*__get_desc)(typeof(__next), char *) = get_desc; \ if (__get_desc) \ __get_desc(__next, desc); \ return __next; \ } \ return NULL; \ } #endif /* _KUNIT_TEST_H */