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1 : /* SPDX-License-Identifier: GPL-2.0 */
2 : /*
3 : * Base unit test (KUnit) API.
4 : *
5 : * Copyright (C) 2019, Google LLC.
6 : * Author: Brendan Higgins <brendanhiggins@google.com>
7 : */
8 :
9 : #ifndef _KUNIT_TEST_H
10 : #define _KUNIT_TEST_H
11 :
12 : #include <kunit/assert.h>
13 : #include <kunit/try-catch.h>
14 :
15 : #include <linux/compiler.h>
16 : #include <linux/container_of.h>
17 : #include <linux/err.h>
18 : #include <linux/init.h>
19 : #include <linux/jump_label.h>
20 : #include <linux/kconfig.h>
21 : #include <linux/kref.h>
22 : #include <linux/list.h>
23 : #include <linux/module.h>
24 : #include <linux/slab.h>
25 : #include <linux/spinlock.h>
26 : #include <linux/string.h>
27 : #include <linux/types.h>
28 :
29 : #include <asm/rwonce.h>
30 :
31 : /* Static key: true if any KUnit tests are currently running */
32 : DECLARE_STATIC_KEY_FALSE(kunit_running);
33 :
34 : struct kunit;
35 :
36 : /* Size of log associated with test. */
37 : #define KUNIT_LOG_SIZE 512
38 :
39 : /* Maximum size of parameter description string. */
40 : #define KUNIT_PARAM_DESC_SIZE 128
41 :
42 : /* Maximum size of a status comment. */
43 : #define KUNIT_STATUS_COMMENT_SIZE 256
44 :
45 : /*
46 : * TAP specifies subtest stream indentation of 4 spaces, 8 spaces for a
47 : * sub-subtest. See the "Subtests" section in
48 : * https://node-tap.org/tap-protocol/
49 : */
50 : #define KUNIT_SUBTEST_INDENT " "
51 : #define KUNIT_SUBSUBTEST_INDENT " "
52 :
53 : /**
54 : * enum kunit_status - Type of result for a test or test suite
55 : * @KUNIT_SUCCESS: Denotes the test suite has not failed nor been skipped
56 : * @KUNIT_FAILURE: Denotes the test has failed.
57 : * @KUNIT_SKIPPED: Denotes the test has been skipped.
58 : */
59 : enum kunit_status {
60 : KUNIT_SUCCESS,
61 : KUNIT_FAILURE,
62 : KUNIT_SKIPPED,
63 : };
64 :
65 : /**
66 : * struct kunit_case - represents an individual test case.
67 : *
68 : * @run_case: the function representing the actual test case.
69 : * @name: the name of the test case.
70 : * @generate_params: the generator function for parameterized tests.
71 : *
72 : * A test case is a function with the signature,
73 : * ``void (*)(struct kunit *)``
74 : * that makes expectations and assertions (see KUNIT_EXPECT_TRUE() and
75 : * KUNIT_ASSERT_TRUE()) about code under test. Each test case is associated
76 : * with a &struct kunit_suite and will be run after the suite's init
77 : * function and followed by the suite's exit function.
78 : *
79 : * A test case should be static and should only be created with the
80 : * KUNIT_CASE() macro; additionally, every array of test cases should be
81 : * terminated with an empty test case.
82 : *
83 : * Example:
84 : *
85 : * .. code-block:: c
86 : *
87 : * void add_test_basic(struct kunit *test)
88 : * {
89 : * KUNIT_EXPECT_EQ(test, 1, add(1, 0));
90 : * KUNIT_EXPECT_EQ(test, 2, add(1, 1));
91 : * KUNIT_EXPECT_EQ(test, 0, add(-1, 1));
92 : * KUNIT_EXPECT_EQ(test, INT_MAX, add(0, INT_MAX));
93 : * KUNIT_EXPECT_EQ(test, -1, add(INT_MAX, INT_MIN));
94 : * }
95 : *
96 : * static struct kunit_case example_test_cases[] = {
97 : * KUNIT_CASE(add_test_basic),
98 : * {}
99 : * };
100 : *
101 : */
102 : struct kunit_case {
103 : void (*run_case)(struct kunit *test);
104 : const char *name;
105 : const void* (*generate_params)(const void *prev, char *desc);
106 :
107 : /* private: internal use only. */
108 : enum kunit_status status;
109 : char *log;
110 : };
111 :
112 : static inline char *kunit_status_to_ok_not_ok(enum kunit_status status)
113 : {
114 733 : switch (status) {
115 : case KUNIT_SKIPPED:
116 : case KUNIT_SUCCESS:
117 : return "ok";
118 : case KUNIT_FAILURE:
119 : return "not ok";
120 : }
121 : return "invalid";
122 : }
123 :
124 : /**
125 : * KUNIT_CASE - A helper for creating a &struct kunit_case
126 : *
127 : * @test_name: a reference to a test case function.
128 : *
129 : * Takes a symbol for a function representing a test case and creates a
130 : * &struct kunit_case object from it. See the documentation for
131 : * &struct kunit_case for an example on how to use it.
132 : */
133 : #define KUNIT_CASE(test_name) { .run_case = test_name, .name = #test_name }
134 :
135 : /**
136 : * KUNIT_CASE_PARAM - A helper for creation a parameterized &struct kunit_case
137 : *
138 : * @test_name: a reference to a test case function.
139 : * @gen_params: a reference to a parameter generator function.
140 : *
141 : * The generator function::
142 : *
143 : * const void* gen_params(const void *prev, char *desc)
144 : *
145 : * is used to lazily generate a series of arbitrarily typed values that fit into
146 : * a void*. The argument @prev is the previously returned value, which should be
147 : * used to derive the next value; @prev is set to NULL on the initial generator
148 : * call. When no more values are available, the generator must return NULL.
149 : * Optionally write a string into @desc (size of KUNIT_PARAM_DESC_SIZE)
150 : * describing the parameter.
151 : */
152 : #define KUNIT_CASE_PARAM(test_name, gen_params) \
153 : { .run_case = test_name, .name = #test_name, \
154 : .generate_params = gen_params }
155 :
156 : /**
157 : * struct kunit_suite - describes a related collection of &struct kunit_case
158 : *
159 : * @name: the name of the test. Purely informational.
160 : * @suite_init: called once per test suite before the test cases.
161 : * @suite_exit: called once per test suite after all test cases.
162 : * @init: called before every test case.
163 : * @exit: called after every test case.
164 : * @test_cases: a null terminated array of test cases.
165 : *
166 : * A kunit_suite is a collection of related &struct kunit_case s, such that
167 : * @init is called before every test case and @exit is called after every
168 : * test case, similar to the notion of a *test fixture* or a *test class*
169 : * in other unit testing frameworks like JUnit or Googletest.
170 : *
171 : * Every &struct kunit_case must be associated with a kunit_suite for KUnit
172 : * to run it.
173 : */
174 : struct kunit_suite {
175 : const char name[256];
176 : int (*suite_init)(struct kunit_suite *suite);
177 : void (*suite_exit)(struct kunit_suite *suite);
178 : int (*init)(struct kunit *test);
179 : void (*exit)(struct kunit *test);
180 : struct kunit_case *test_cases;
181 :
182 : /* private: internal use only */
183 : char status_comment[KUNIT_STATUS_COMMENT_SIZE];
184 : struct dentry *debugfs;
185 : char *log;
186 : int suite_init_err;
187 : };
188 :
189 : /**
190 : * struct kunit - represents a running instance of a test.
191 : *
192 : * @priv: for user to store arbitrary data. Commonly used to pass data
193 : * created in the init function (see &struct kunit_suite).
194 : *
195 : * Used to store information about the current context under which the test
196 : * is running. Most of this data is private and should only be accessed
197 : * indirectly via public functions; the one exception is @priv which can be
198 : * used by the test writer to store arbitrary data.
199 : */
200 : struct kunit {
201 : void *priv;
202 :
203 : /* private: internal use only. */
204 : const char *name; /* Read only after initialization! */
205 : char *log; /* Points at case log after initialization */
206 : struct kunit_try_catch try_catch;
207 : /* param_value is the current parameter value for a test case. */
208 : const void *param_value;
209 : /* param_index stores the index of the parameter in parameterized tests. */
210 : int param_index;
211 : /*
212 : * success starts as true, and may only be set to false during a
213 : * test case; thus, it is safe to update this across multiple
214 : * threads using WRITE_ONCE; however, as a consequence, it may only
215 : * be read after the test case finishes once all threads associated
216 : * with the test case have terminated.
217 : */
218 : spinlock_t lock; /* Guards all mutable test state. */
219 : enum kunit_status status; /* Read only after test_case finishes! */
220 : /*
221 : * Because resources is a list that may be updated multiple times (with
222 : * new resources) from any thread associated with a test case, we must
223 : * protect it with some type of lock.
224 : */
225 : struct list_head resources; /* Protected by lock. */
226 :
227 : char status_comment[KUNIT_STATUS_COMMENT_SIZE];
228 : };
229 :
230 : static inline void kunit_set_failure(struct kunit *test)
231 : {
232 0 : WRITE_ONCE(test->status, KUNIT_FAILURE);
233 : }
234 :
235 : bool kunit_enabled(void);
236 :
237 : void kunit_init_test(struct kunit *test, const char *name, char *log);
238 :
239 : int kunit_run_tests(struct kunit_suite *suite);
240 :
241 : size_t kunit_suite_num_test_cases(struct kunit_suite *suite);
242 :
243 : unsigned int kunit_test_case_num(struct kunit_suite *suite,
244 : struct kunit_case *test_case);
245 :
246 : int __kunit_test_suites_init(struct kunit_suite * const * const suites, int num_suites);
247 :
248 : void __kunit_test_suites_exit(struct kunit_suite **suites, int num_suites);
249 :
250 : #if IS_BUILTIN(CONFIG_KUNIT)
251 : int kunit_run_all_tests(void);
252 : #else
253 : static inline int kunit_run_all_tests(void)
254 : {
255 : return 0;
256 : }
257 : #endif /* IS_BUILTIN(CONFIG_KUNIT) */
258 :
259 : #define __kunit_test_suites(unique_array, ...) \
260 : static struct kunit_suite *unique_array[] \
261 : __aligned(sizeof(struct kunit_suite *)) \
262 : __used __section(".kunit_test_suites") = { __VA_ARGS__ }
263 :
264 : /**
265 : * kunit_test_suites() - used to register one or more &struct kunit_suite
266 : * with KUnit.
267 : *
268 : * @__suites: a statically allocated list of &struct kunit_suite.
269 : *
270 : * Registers @suites with the test framework.
271 : * This is done by placing the array of struct kunit_suite * in the
272 : * .kunit_test_suites ELF section.
273 : *
274 : * When builtin, KUnit tests are all run via the executor at boot, and when
275 : * built as a module, they run on module load.
276 : *
277 : */
278 : #define kunit_test_suites(__suites...) \
279 : __kunit_test_suites(__UNIQUE_ID(array), \
280 : ##__suites)
281 :
282 : #define kunit_test_suite(suite) kunit_test_suites(&suite)
283 :
284 : /**
285 : * kunit_test_init_section_suites() - used to register one or more &struct
286 : * kunit_suite containing init functions or
287 : * init data.
288 : *
289 : * @__suites: a statically allocated list of &struct kunit_suite.
290 : *
291 : * This functions identically as kunit_test_suites() except that it suppresses
292 : * modpost warnings for referencing functions marked __init or data marked
293 : * __initdata; this is OK because currently KUnit only runs tests upon boot
294 : * during the init phase or upon loading a module during the init phase.
295 : *
296 : * NOTE TO KUNIT DEVS: If we ever allow KUnit tests to be run after boot, these
297 : * tests must be excluded.
298 : *
299 : * The only thing this macro does that's different from kunit_test_suites is
300 : * that it suffixes the array and suite declarations it makes with _probe;
301 : * modpost suppresses warnings about referencing init data for symbols named in
302 : * this manner.
303 : */
304 : #define kunit_test_init_section_suites(__suites...) \
305 : __kunit_test_suites(CONCATENATE(__UNIQUE_ID(array), _probe), \
306 : ##__suites)
307 :
308 : #define kunit_test_init_section_suite(suite) \
309 : kunit_test_init_section_suites(&suite)
310 :
311 : #define kunit_suite_for_each_test_case(suite, test_case) \
312 : for (test_case = suite->test_cases; test_case->run_case; test_case++)
313 :
314 : enum kunit_status kunit_suite_has_succeeded(struct kunit_suite *suite);
315 :
316 : /**
317 : * kunit_kmalloc_array() - Like kmalloc_array() except the allocation is *test managed*.
318 : * @test: The test context object.
319 : * @n: number of elements.
320 : * @size: The size in bytes of the desired memory.
321 : * @gfp: flags passed to underlying kmalloc().
322 : *
323 : * Just like `kmalloc_array(...)`, except the allocation is managed by the test case
324 : * and is automatically cleaned up after the test case concludes. See &struct
325 : * kunit_resource for more information.
326 : */
327 : void *kunit_kmalloc_array(struct kunit *test, size_t n, size_t size, gfp_t gfp);
328 :
329 : /**
330 : * kunit_kmalloc() - Like kmalloc() except the allocation is *test managed*.
331 : * @test: The test context object.
332 : * @size: The size in bytes of the desired memory.
333 : * @gfp: flags passed to underlying kmalloc().
334 : *
335 : * See kmalloc() and kunit_kmalloc_array() for more information.
336 : */
337 : static inline void *kunit_kmalloc(struct kunit *test, size_t size, gfp_t gfp)
338 : {
339 312 : return kunit_kmalloc_array(test, 1, size, gfp);
340 : }
341 :
342 : /**
343 : * kunit_kfree() - Like kfree except for allocations managed by KUnit.
344 : * @test: The test case to which the resource belongs.
345 : * @ptr: The memory allocation to free.
346 : */
347 : void kunit_kfree(struct kunit *test, const void *ptr);
348 :
349 : /**
350 : * kunit_kzalloc() - Just like kunit_kmalloc(), but zeroes the allocation.
351 : * @test: The test context object.
352 : * @size: The size in bytes of the desired memory.
353 : * @gfp: flags passed to underlying kmalloc().
354 : *
355 : * See kzalloc() and kunit_kmalloc_array() for more information.
356 : */
357 : static inline void *kunit_kzalloc(struct kunit *test, size_t size, gfp_t gfp)
358 : {
359 624 : return kunit_kmalloc(test, size, gfp | __GFP_ZERO);
360 : }
361 :
362 : /**
363 : * kunit_kcalloc() - Just like kunit_kmalloc_array(), but zeroes the allocation.
364 : * @test: The test context object.
365 : * @n: number of elements.
366 : * @size: The size in bytes of the desired memory.
367 : * @gfp: flags passed to underlying kmalloc().
368 : *
369 : * See kcalloc() and kunit_kmalloc_array() for more information.
370 : */
371 : static inline void *kunit_kcalloc(struct kunit *test, size_t n, size_t size, gfp_t gfp)
372 : {
373 : return kunit_kmalloc_array(test, n, size, gfp | __GFP_ZERO);
374 : }
375 :
376 : void kunit_cleanup(struct kunit *test);
377 :
378 : void __printf(2, 3) kunit_log_append(char *log, const char *fmt, ...);
379 :
380 : /**
381 : * kunit_mark_skipped() - Marks @test_or_suite as skipped
382 : *
383 : * @test_or_suite: The test context object.
384 : * @fmt: A printk() style format string.
385 : *
386 : * Marks the test as skipped. @fmt is given output as the test status
387 : * comment, typically the reason the test was skipped.
388 : *
389 : * Test execution continues after kunit_mark_skipped() is called.
390 : */
391 : #define kunit_mark_skipped(test_or_suite, fmt, ...) \
392 : do { \
393 : WRITE_ONCE((test_or_suite)->status, KUNIT_SKIPPED); \
394 : scnprintf((test_or_suite)->status_comment, \
395 : KUNIT_STATUS_COMMENT_SIZE, \
396 : fmt, ##__VA_ARGS__); \
397 : } while (0)
398 :
399 : /**
400 : * kunit_skip() - Marks @test_or_suite as skipped
401 : *
402 : * @test_or_suite: The test context object.
403 : * @fmt: A printk() style format string.
404 : *
405 : * Skips the test. @fmt is given output as the test status
406 : * comment, typically the reason the test was skipped.
407 : *
408 : * Test execution is halted after kunit_skip() is called.
409 : */
410 : #define kunit_skip(test_or_suite, fmt, ...) \
411 : do { \
412 : kunit_mark_skipped((test_or_suite), fmt, ##__VA_ARGS__);\
413 : kunit_try_catch_throw(&((test_or_suite)->try_catch)); \
414 : } while (0)
415 :
416 : /*
417 : * printk and log to per-test or per-suite log buffer. Logging only done
418 : * if CONFIG_KUNIT_DEBUGFS is 'y'; if it is 'n', no log is allocated/used.
419 : */
420 : #define kunit_log(lvl, test_or_suite, fmt, ...) \
421 : do { \
422 : printk(lvl fmt, ##__VA_ARGS__); \
423 : kunit_log_append((test_or_suite)->log, fmt "\n", \
424 : ##__VA_ARGS__); \
425 : } while (0)
426 :
427 : #define kunit_printk(lvl, test, fmt, ...) \
428 : kunit_log(lvl, test, KUNIT_SUBTEST_INDENT "# %s: " fmt, \
429 : (test)->name, ##__VA_ARGS__)
430 :
431 : /**
432 : * kunit_info() - Prints an INFO level message associated with @test.
433 : *
434 : * @test: The test context object.
435 : * @fmt: A printk() style format string.
436 : *
437 : * Prints an info level message associated with the test suite being run.
438 : * Takes a variable number of format parameters just like printk().
439 : */
440 : #define kunit_info(test, fmt, ...) \
441 : kunit_printk(KERN_INFO, test, fmt, ##__VA_ARGS__)
442 :
443 : /**
444 : * kunit_warn() - Prints a WARN level message associated with @test.
445 : *
446 : * @test: The test context object.
447 : * @fmt: A printk() style format string.
448 : *
449 : * Prints a warning level message.
450 : */
451 : #define kunit_warn(test, fmt, ...) \
452 : kunit_printk(KERN_WARNING, test, fmt, ##__VA_ARGS__)
453 :
454 : /**
455 : * kunit_err() - Prints an ERROR level message associated with @test.
456 : *
457 : * @test: The test context object.
458 : * @fmt: A printk() style format string.
459 : *
460 : * Prints an error level message.
461 : */
462 : #define kunit_err(test, fmt, ...) \
463 : kunit_printk(KERN_ERR, test, fmt, ##__VA_ARGS__)
464 :
465 : /**
466 : * KUNIT_SUCCEED() - A no-op expectation. Only exists for code clarity.
467 : * @test: The test context object.
468 : *
469 : * The opposite of KUNIT_FAIL(), it is an expectation that cannot fail. In other
470 : * words, it does nothing and only exists for code clarity. See
471 : * KUNIT_EXPECT_TRUE() for more information.
472 : */
473 : #define KUNIT_SUCCEED(test) do {} while (0)
474 :
475 : void kunit_do_failed_assertion(struct kunit *test,
476 : const struct kunit_loc *loc,
477 : enum kunit_assert_type type,
478 : const struct kunit_assert *assert,
479 : assert_format_t assert_format,
480 : const char *fmt, ...);
481 :
482 : #define _KUNIT_FAILED(test, assert_type, assert_class, assert_format, INITIALIZER, fmt, ...) do { \
483 : static const struct kunit_loc __loc = KUNIT_CURRENT_LOC; \
484 : const struct assert_class __assertion = INITIALIZER; \
485 : kunit_do_failed_assertion(test, \
486 : &__loc, \
487 : assert_type, \
488 : &__assertion.assert, \
489 : assert_format, \
490 : fmt, \
491 : ##__VA_ARGS__); \
492 : } while (0)
493 :
494 :
495 : #define KUNIT_FAIL_ASSERTION(test, assert_type, fmt, ...) \
496 : _KUNIT_FAILED(test, \
497 : assert_type, \
498 : kunit_fail_assert, \
499 : kunit_fail_assert_format, \
500 : {}, \
501 : fmt, \
502 : ##__VA_ARGS__)
503 :
504 : /**
505 : * KUNIT_FAIL() - Always causes a test to fail when evaluated.
506 : * @test: The test context object.
507 : * @fmt: an informational message to be printed when the assertion is made.
508 : * @...: string format arguments.
509 : *
510 : * The opposite of KUNIT_SUCCEED(), it is an expectation that always fails. In
511 : * other words, it always results in a failed expectation, and consequently
512 : * always causes the test case to fail when evaluated. See KUNIT_EXPECT_TRUE()
513 : * for more information.
514 : */
515 : #define KUNIT_FAIL(test, fmt, ...) \
516 : KUNIT_FAIL_ASSERTION(test, \
517 : KUNIT_EXPECTATION, \
518 : fmt, \
519 : ##__VA_ARGS__)
520 :
521 : /* Helper to safely pass around an initializer list to other macros. */
522 : #define KUNIT_INIT_ASSERT(initializers...) { initializers }
523 :
524 : #define KUNIT_UNARY_ASSERTION(test, \
525 : assert_type, \
526 : condition_, \
527 : expected_true_, \
528 : fmt, \
529 : ...) \
530 : do { \
531 : if (likely(!!(condition_) == !!expected_true_)) \
532 : break; \
533 : \
534 : _KUNIT_FAILED(test, \
535 : assert_type, \
536 : kunit_unary_assert, \
537 : kunit_unary_assert_format, \
538 : KUNIT_INIT_ASSERT(.condition = #condition_, \
539 : .expected_true = expected_true_), \
540 : fmt, \
541 : ##__VA_ARGS__); \
542 : } while (0)
543 :
544 : #define KUNIT_TRUE_MSG_ASSERTION(test, assert_type, condition, fmt, ...) \
545 : KUNIT_UNARY_ASSERTION(test, \
546 : assert_type, \
547 : condition, \
548 : true, \
549 : fmt, \
550 : ##__VA_ARGS__)
551 :
552 : #define KUNIT_FALSE_MSG_ASSERTION(test, assert_type, condition, fmt, ...) \
553 : KUNIT_UNARY_ASSERTION(test, \
554 : assert_type, \
555 : condition, \
556 : false, \
557 : fmt, \
558 : ##__VA_ARGS__)
559 :
560 : /*
561 : * A factory macro for defining the assertions and expectations for the basic
562 : * comparisons defined for the built in types.
563 : *
564 : * Unfortunately, there is no common type that all types can be promoted to for
565 : * which all the binary operators behave the same way as for the actual types
566 : * (for example, there is no type that long long and unsigned long long can
567 : * both be cast to where the comparison result is preserved for all values). So
568 : * the best we can do is do the comparison in the original types and then coerce
569 : * everything to long long for printing; this way, the comparison behaves
570 : * correctly and the printed out value usually makes sense without
571 : * interpretation, but can always be interpreted to figure out the actual
572 : * value.
573 : */
574 : #define KUNIT_BASE_BINARY_ASSERTION(test, \
575 : assert_class, \
576 : format_func, \
577 : assert_type, \
578 : left, \
579 : op, \
580 : right, \
581 : fmt, \
582 : ...) \
583 : do { \
584 : const typeof(left) __left = (left); \
585 : const typeof(right) __right = (right); \
586 : static const struct kunit_binary_assert_text __text = { \
587 : .operation = #op, \
588 : .left_text = #left, \
589 : .right_text = #right, \
590 : }; \
591 : \
592 : if (likely(__left op __right)) \
593 : break; \
594 : \
595 : _KUNIT_FAILED(test, \
596 : assert_type, \
597 : assert_class, \
598 : format_func, \
599 : KUNIT_INIT_ASSERT(.text = &__text, \
600 : .left_value = __left, \
601 : .right_value = __right), \
602 : fmt, \
603 : ##__VA_ARGS__); \
604 : } while (0)
605 :
606 : #define KUNIT_BINARY_INT_ASSERTION(test, \
607 : assert_type, \
608 : left, \
609 : op, \
610 : right, \
611 : fmt, \
612 : ...) \
613 : KUNIT_BASE_BINARY_ASSERTION(test, \
614 : kunit_binary_assert, \
615 : kunit_binary_assert_format, \
616 : assert_type, \
617 : left, op, right, \
618 : fmt, \
619 : ##__VA_ARGS__)
620 :
621 : #define KUNIT_BINARY_PTR_ASSERTION(test, \
622 : assert_type, \
623 : left, \
624 : op, \
625 : right, \
626 : fmt, \
627 : ...) \
628 : KUNIT_BASE_BINARY_ASSERTION(test, \
629 : kunit_binary_ptr_assert, \
630 : kunit_binary_ptr_assert_format, \
631 : assert_type, \
632 : left, op, right, \
633 : fmt, \
634 : ##__VA_ARGS__)
635 :
636 : #define KUNIT_BINARY_STR_ASSERTION(test, \
637 : assert_type, \
638 : left, \
639 : op, \
640 : right, \
641 : fmt, \
642 : ...) \
643 : do { \
644 : const char *__left = (left); \
645 : const char *__right = (right); \
646 : static const struct kunit_binary_assert_text __text = { \
647 : .operation = #op, \
648 : .left_text = #left, \
649 : .right_text = #right, \
650 : }; \
651 : \
652 : if (likely(strcmp(__left, __right) op 0)) \
653 : break; \
654 : \
655 : \
656 : _KUNIT_FAILED(test, \
657 : assert_type, \
658 : kunit_binary_str_assert, \
659 : kunit_binary_str_assert_format, \
660 : KUNIT_INIT_ASSERT(.text = &__text, \
661 : .left_value = __left, \
662 : .right_value = __right), \
663 : fmt, \
664 : ##__VA_ARGS__); \
665 : } while (0)
666 :
667 : #define KUNIT_MEM_ASSERTION(test, \
668 : assert_type, \
669 : left, \
670 : op, \
671 : right, \
672 : size_, \
673 : fmt, \
674 : ...) \
675 : do { \
676 : const void *__left = (left); \
677 : const void *__right = (right); \
678 : const size_t __size = (size_); \
679 : static const struct kunit_binary_assert_text __text = { \
680 : .operation = #op, \
681 : .left_text = #left, \
682 : .right_text = #right, \
683 : }; \
684 : \
685 : if (likely(__left && __right)) \
686 : if (likely(memcmp(__left, __right, __size) op 0)) \
687 : break; \
688 : \
689 : _KUNIT_FAILED(test, \
690 : assert_type, \
691 : kunit_mem_assert, \
692 : kunit_mem_assert_format, \
693 : KUNIT_INIT_ASSERT(.text = &__text, \
694 : .left_value = __left, \
695 : .right_value = __right, \
696 : .size = __size), \
697 : fmt, \
698 : ##__VA_ARGS__); \
699 : } while (0)
700 :
701 : #define KUNIT_PTR_NOT_ERR_OR_NULL_MSG_ASSERTION(test, \
702 : assert_type, \
703 : ptr, \
704 : fmt, \
705 : ...) \
706 : do { \
707 : const typeof(ptr) __ptr = (ptr); \
708 : \
709 : if (!IS_ERR_OR_NULL(__ptr)) \
710 : break; \
711 : \
712 : _KUNIT_FAILED(test, \
713 : assert_type, \
714 : kunit_ptr_not_err_assert, \
715 : kunit_ptr_not_err_assert_format, \
716 : KUNIT_INIT_ASSERT(.text = #ptr, .value = __ptr), \
717 : fmt, \
718 : ##__VA_ARGS__); \
719 : } while (0)
720 :
721 : /**
722 : * KUNIT_EXPECT_TRUE() - Causes a test failure when the expression is not true.
723 : * @test: The test context object.
724 : * @condition: an arbitrary boolean expression. The test fails when this does
725 : * not evaluate to true.
726 : *
727 : * This and expectations of the form `KUNIT_EXPECT_*` will cause the test case
728 : * to fail when the specified condition is not met; however, it will not prevent
729 : * the test case from continuing to run; this is otherwise known as an
730 : * *expectation failure*.
731 : */
732 : #define KUNIT_EXPECT_TRUE(test, condition) \
733 : KUNIT_EXPECT_TRUE_MSG(test, condition, NULL)
734 :
735 : #define KUNIT_EXPECT_TRUE_MSG(test, condition, fmt, ...) \
736 : KUNIT_TRUE_MSG_ASSERTION(test, \
737 : KUNIT_EXPECTATION, \
738 : condition, \
739 : fmt, \
740 : ##__VA_ARGS__)
741 :
742 : /**
743 : * KUNIT_EXPECT_FALSE() - Makes a test failure when the expression is not false.
744 : * @test: The test context object.
745 : * @condition: an arbitrary boolean expression. The test fails when this does
746 : * not evaluate to false.
747 : *
748 : * Sets an expectation that @condition evaluates to false. See
749 : * KUNIT_EXPECT_TRUE() for more information.
750 : */
751 : #define KUNIT_EXPECT_FALSE(test, condition) \
752 : KUNIT_EXPECT_FALSE_MSG(test, condition, NULL)
753 :
754 : #define KUNIT_EXPECT_FALSE_MSG(test, condition, fmt, ...) \
755 : KUNIT_FALSE_MSG_ASSERTION(test, \
756 : KUNIT_EXPECTATION, \
757 : condition, \
758 : fmt, \
759 : ##__VA_ARGS__)
760 :
761 : /**
762 : * KUNIT_EXPECT_EQ() - Sets an expectation that @left and @right are equal.
763 : * @test: The test context object.
764 : * @left: an arbitrary expression that evaluates to a primitive C type.
765 : * @right: an arbitrary expression that evaluates to a primitive C type.
766 : *
767 : * Sets an expectation that the values that @left and @right evaluate to are
768 : * equal. This is semantically equivalent to
769 : * KUNIT_EXPECT_TRUE(@test, (@left) == (@right)). See KUNIT_EXPECT_TRUE() for
770 : * more information.
771 : */
772 : #define KUNIT_EXPECT_EQ(test, left, right) \
773 : KUNIT_EXPECT_EQ_MSG(test, left, right, NULL)
774 :
775 : #define KUNIT_EXPECT_EQ_MSG(test, left, right, fmt, ...) \
776 : KUNIT_BINARY_INT_ASSERTION(test, \
777 : KUNIT_EXPECTATION, \
778 : left, ==, right, \
779 : fmt, \
780 : ##__VA_ARGS__)
781 :
782 : /**
783 : * KUNIT_EXPECT_PTR_EQ() - Expects that pointers @left and @right are equal.
784 : * @test: The test context object.
785 : * @left: an arbitrary expression that evaluates to a pointer.
786 : * @right: an arbitrary expression that evaluates to a pointer.
787 : *
788 : * Sets an expectation that the values that @left and @right evaluate to are
789 : * equal. This is semantically equivalent to
790 : * KUNIT_EXPECT_TRUE(@test, (@left) == (@right)). See KUNIT_EXPECT_TRUE() for
791 : * more information.
792 : */
793 : #define KUNIT_EXPECT_PTR_EQ(test, left, right) \
794 : KUNIT_EXPECT_PTR_EQ_MSG(test, left, right, NULL)
795 :
796 : #define KUNIT_EXPECT_PTR_EQ_MSG(test, left, right, fmt, ...) \
797 : KUNIT_BINARY_PTR_ASSERTION(test, \
798 : KUNIT_EXPECTATION, \
799 : left, ==, right, \
800 : fmt, \
801 : ##__VA_ARGS__)
802 :
803 : /**
804 : * KUNIT_EXPECT_NE() - An expectation that @left and @right are not equal.
805 : * @test: The test context object.
806 : * @left: an arbitrary expression that evaluates to a primitive C type.
807 : * @right: an arbitrary expression that evaluates to a primitive C type.
808 : *
809 : * Sets an expectation that the values that @left and @right evaluate to are not
810 : * equal. This is semantically equivalent to
811 : * KUNIT_EXPECT_TRUE(@test, (@left) != (@right)). See KUNIT_EXPECT_TRUE() for
812 : * more information.
813 : */
814 : #define KUNIT_EXPECT_NE(test, left, right) \
815 : KUNIT_EXPECT_NE_MSG(test, left, right, NULL)
816 :
817 : #define KUNIT_EXPECT_NE_MSG(test, left, right, fmt, ...) \
818 : KUNIT_BINARY_INT_ASSERTION(test, \
819 : KUNIT_EXPECTATION, \
820 : left, !=, right, \
821 : fmt, \
822 : ##__VA_ARGS__)
823 :
824 : /**
825 : * KUNIT_EXPECT_PTR_NE() - Expects that pointers @left and @right are not equal.
826 : * @test: The test context object.
827 : * @left: an arbitrary expression that evaluates to a pointer.
828 : * @right: an arbitrary expression that evaluates to a pointer.
829 : *
830 : * Sets an expectation that the values that @left and @right evaluate to are not
831 : * equal. This is semantically equivalent to
832 : * KUNIT_EXPECT_TRUE(@test, (@left) != (@right)). See KUNIT_EXPECT_TRUE() for
833 : * more information.
834 : */
835 : #define KUNIT_EXPECT_PTR_NE(test, left, right) \
836 : KUNIT_EXPECT_PTR_NE_MSG(test, left, right, NULL)
837 :
838 : #define KUNIT_EXPECT_PTR_NE_MSG(test, left, right, fmt, ...) \
839 : KUNIT_BINARY_PTR_ASSERTION(test, \
840 : KUNIT_EXPECTATION, \
841 : left, !=, right, \
842 : fmt, \
843 : ##__VA_ARGS__)
844 :
845 : /**
846 : * KUNIT_EXPECT_LT() - An expectation that @left is less than @right.
847 : * @test: The test context object.
848 : * @left: an arbitrary expression that evaluates to a primitive C type.
849 : * @right: an arbitrary expression that evaluates to a primitive C type.
850 : *
851 : * Sets an expectation that the value that @left evaluates to is less than the
852 : * value that @right evaluates to. This is semantically equivalent to
853 : * KUNIT_EXPECT_TRUE(@test, (@left) < (@right)). See KUNIT_EXPECT_TRUE() for
854 : * more information.
855 : */
856 : #define KUNIT_EXPECT_LT(test, left, right) \
857 : KUNIT_EXPECT_LT_MSG(test, left, right, NULL)
858 :
859 : #define KUNIT_EXPECT_LT_MSG(test, left, right, fmt, ...) \
860 : KUNIT_BINARY_INT_ASSERTION(test, \
861 : KUNIT_EXPECTATION, \
862 : left, <, right, \
863 : fmt, \
864 : ##__VA_ARGS__)
865 :
866 : /**
867 : * KUNIT_EXPECT_LE() - Expects that @left is less than or equal to @right.
868 : * @test: The test context object.
869 : * @left: an arbitrary expression that evaluates to a primitive C type.
870 : * @right: an arbitrary expression that evaluates to a primitive C type.
871 : *
872 : * Sets an expectation that the value that @left evaluates to is less than or
873 : * equal to the value that @right evaluates to. Semantically this is equivalent
874 : * to KUNIT_EXPECT_TRUE(@test, (@left) <= (@right)). See KUNIT_EXPECT_TRUE() for
875 : * more information.
876 : */
877 : #define KUNIT_EXPECT_LE(test, left, right) \
878 : KUNIT_EXPECT_LE_MSG(test, left, right, NULL)
879 :
880 : #define KUNIT_EXPECT_LE_MSG(test, left, right, fmt, ...) \
881 : KUNIT_BINARY_INT_ASSERTION(test, \
882 : KUNIT_EXPECTATION, \
883 : left, <=, right, \
884 : fmt, \
885 : ##__VA_ARGS__)
886 :
887 : /**
888 : * KUNIT_EXPECT_GT() - An expectation that @left is greater than @right.
889 : * @test: The test context object.
890 : * @left: an arbitrary expression that evaluates to a primitive C type.
891 : * @right: an arbitrary expression that evaluates to a primitive C type.
892 : *
893 : * Sets an expectation that the value that @left evaluates to is greater than
894 : * the value that @right evaluates to. This is semantically equivalent to
895 : * KUNIT_EXPECT_TRUE(@test, (@left) > (@right)). See KUNIT_EXPECT_TRUE() for
896 : * more information.
897 : */
898 : #define KUNIT_EXPECT_GT(test, left, right) \
899 : KUNIT_EXPECT_GT_MSG(test, left, right, NULL)
900 :
901 : #define KUNIT_EXPECT_GT_MSG(test, left, right, fmt, ...) \
902 : KUNIT_BINARY_INT_ASSERTION(test, \
903 : KUNIT_EXPECTATION, \
904 : left, >, right, \
905 : fmt, \
906 : ##__VA_ARGS__)
907 :
908 : /**
909 : * KUNIT_EXPECT_GE() - Expects that @left is greater than or equal to @right.
910 : * @test: The test context object.
911 : * @left: an arbitrary expression that evaluates to a primitive C type.
912 : * @right: an arbitrary expression that evaluates to a primitive C type.
913 : *
914 : * Sets an expectation that the value that @left evaluates to is greater than
915 : * the value that @right evaluates to. This is semantically equivalent to
916 : * KUNIT_EXPECT_TRUE(@test, (@left) >= (@right)). See KUNIT_EXPECT_TRUE() for
917 : * more information.
918 : */
919 : #define KUNIT_EXPECT_GE(test, left, right) \
920 : KUNIT_EXPECT_GE_MSG(test, left, right, NULL)
921 :
922 : #define KUNIT_EXPECT_GE_MSG(test, left, right, fmt, ...) \
923 : KUNIT_BINARY_INT_ASSERTION(test, \
924 : KUNIT_EXPECTATION, \
925 : left, >=, right, \
926 : fmt, \
927 : ##__VA_ARGS__)
928 :
929 : /**
930 : * KUNIT_EXPECT_STREQ() - Expects that strings @left and @right are equal.
931 : * @test: The test context object.
932 : * @left: an arbitrary expression that evaluates to a null terminated string.
933 : * @right: an arbitrary expression that evaluates to a null terminated string.
934 : *
935 : * Sets an expectation that the values that @left and @right evaluate to are
936 : * equal. This is semantically equivalent to
937 : * KUNIT_EXPECT_TRUE(@test, !strcmp((@left), (@right))). See KUNIT_EXPECT_TRUE()
938 : * for more information.
939 : */
940 : #define KUNIT_EXPECT_STREQ(test, left, right) \
941 : KUNIT_EXPECT_STREQ_MSG(test, left, right, NULL)
942 :
943 : #define KUNIT_EXPECT_STREQ_MSG(test, left, right, fmt, ...) \
944 : KUNIT_BINARY_STR_ASSERTION(test, \
945 : KUNIT_EXPECTATION, \
946 : left, ==, right, \
947 : fmt, \
948 : ##__VA_ARGS__)
949 :
950 : /**
951 : * KUNIT_EXPECT_STRNEQ() - Expects that strings @left and @right are not equal.
952 : * @test: The test context object.
953 : * @left: an arbitrary expression that evaluates to a null terminated string.
954 : * @right: an arbitrary expression that evaluates to a null terminated string.
955 : *
956 : * Sets an expectation that the values that @left and @right evaluate to are
957 : * not equal. This is semantically equivalent to
958 : * KUNIT_EXPECT_TRUE(@test, strcmp((@left), (@right))). See KUNIT_EXPECT_TRUE()
959 : * for more information.
960 : */
961 : #define KUNIT_EXPECT_STRNEQ(test, left, right) \
962 : KUNIT_EXPECT_STRNEQ_MSG(test, left, right, NULL)
963 :
964 : #define KUNIT_EXPECT_STRNEQ_MSG(test, left, right, fmt, ...) \
965 : KUNIT_BINARY_STR_ASSERTION(test, \
966 : KUNIT_EXPECTATION, \
967 : left, !=, right, \
968 : fmt, \
969 : ##__VA_ARGS__)
970 :
971 : /**
972 : * KUNIT_EXPECT_MEMEQ() - Expects that the first @size bytes of @left and @right are equal.
973 : * @test: The test context object.
974 : * @left: An arbitrary expression that evaluates to the specified size.
975 : * @right: An arbitrary expression that evaluates to the specified size.
976 : * @size: Number of bytes compared.
977 : *
978 : * Sets an expectation that the values that @left and @right evaluate to are
979 : * equal. This is semantically equivalent to
980 : * KUNIT_EXPECT_TRUE(@test, !memcmp((@left), (@right), (@size))). See
981 : * KUNIT_EXPECT_TRUE() for more information.
982 : *
983 : * Although this expectation works for any memory block, it is not recommended
984 : * for comparing more structured data, such as structs. This expectation is
985 : * recommended for comparing, for example, data arrays.
986 : */
987 : #define KUNIT_EXPECT_MEMEQ(test, left, right, size) \
988 : KUNIT_EXPECT_MEMEQ_MSG(test, left, right, size, NULL)
989 :
990 : #define KUNIT_EXPECT_MEMEQ_MSG(test, left, right, size, fmt, ...) \
991 : KUNIT_MEM_ASSERTION(test, \
992 : KUNIT_EXPECTATION, \
993 : left, ==, right, \
994 : size, \
995 : fmt, \
996 : ##__VA_ARGS__)
997 :
998 : /**
999 : * KUNIT_EXPECT_MEMNEQ() - Expects that the first @size bytes of @left and @right are not equal.
1000 : * @test: The test context object.
1001 : * @left: An arbitrary expression that evaluates to the specified size.
1002 : * @right: An arbitrary expression that evaluates to the specified size.
1003 : * @size: Number of bytes compared.
1004 : *
1005 : * Sets an expectation that the values that @left and @right evaluate to are
1006 : * not equal. This is semantically equivalent to
1007 : * KUNIT_EXPECT_TRUE(@test, memcmp((@left), (@right), (@size))). See
1008 : * KUNIT_EXPECT_TRUE() for more information.
1009 : *
1010 : * Although this expectation works for any memory block, it is not recommended
1011 : * for comparing more structured data, such as structs. This expectation is
1012 : * recommended for comparing, for example, data arrays.
1013 : */
1014 : #define KUNIT_EXPECT_MEMNEQ(test, left, right, size) \
1015 : KUNIT_EXPECT_MEMNEQ_MSG(test, left, right, size, NULL)
1016 :
1017 : #define KUNIT_EXPECT_MEMNEQ_MSG(test, left, right, size, fmt, ...) \
1018 : KUNIT_MEM_ASSERTION(test, \
1019 : KUNIT_EXPECTATION, \
1020 : left, !=, right, \
1021 : size, \
1022 : fmt, \
1023 : ##__VA_ARGS__)
1024 :
1025 : /**
1026 : * KUNIT_EXPECT_NULL() - Expects that @ptr is null.
1027 : * @test: The test context object.
1028 : * @ptr: an arbitrary pointer.
1029 : *
1030 : * Sets an expectation that the value that @ptr evaluates to is null. This is
1031 : * semantically equivalent to KUNIT_EXPECT_PTR_EQ(@test, ptr, NULL).
1032 : * See KUNIT_EXPECT_TRUE() for more information.
1033 : */
1034 : #define KUNIT_EXPECT_NULL(test, ptr) \
1035 : KUNIT_EXPECT_NULL_MSG(test, \
1036 : ptr, \
1037 : NULL)
1038 :
1039 : #define KUNIT_EXPECT_NULL_MSG(test, ptr, fmt, ...) \
1040 : KUNIT_BINARY_PTR_ASSERTION(test, \
1041 : KUNIT_EXPECTATION, \
1042 : ptr, ==, NULL, \
1043 : fmt, \
1044 : ##__VA_ARGS__)
1045 :
1046 : /**
1047 : * KUNIT_EXPECT_NOT_NULL() - Expects that @ptr is not null.
1048 : * @test: The test context object.
1049 : * @ptr: an arbitrary pointer.
1050 : *
1051 : * Sets an expectation that the value that @ptr evaluates to is not null. This
1052 : * is semantically equivalent to KUNIT_EXPECT_PTR_NE(@test, ptr, NULL).
1053 : * See KUNIT_EXPECT_TRUE() for more information.
1054 : */
1055 : #define KUNIT_EXPECT_NOT_NULL(test, ptr) \
1056 : KUNIT_EXPECT_NOT_NULL_MSG(test, \
1057 : ptr, \
1058 : NULL)
1059 :
1060 : #define KUNIT_EXPECT_NOT_NULL_MSG(test, ptr, fmt, ...) \
1061 : KUNIT_BINARY_PTR_ASSERTION(test, \
1062 : KUNIT_EXPECTATION, \
1063 : ptr, !=, NULL, \
1064 : fmt, \
1065 : ##__VA_ARGS__)
1066 :
1067 : /**
1068 : * KUNIT_EXPECT_NOT_ERR_OR_NULL() - Expects that @ptr is not null and not err.
1069 : * @test: The test context object.
1070 : * @ptr: an arbitrary pointer.
1071 : *
1072 : * Sets an expectation that the value that @ptr evaluates to is not null and not
1073 : * an errno stored in a pointer. This is semantically equivalent to
1074 : * KUNIT_EXPECT_TRUE(@test, !IS_ERR_OR_NULL(@ptr)). See KUNIT_EXPECT_TRUE() for
1075 : * more information.
1076 : */
1077 : #define KUNIT_EXPECT_NOT_ERR_OR_NULL(test, ptr) \
1078 : KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, ptr, NULL)
1079 :
1080 : #define KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, ptr, fmt, ...) \
1081 : KUNIT_PTR_NOT_ERR_OR_NULL_MSG_ASSERTION(test, \
1082 : KUNIT_EXPECTATION, \
1083 : ptr, \
1084 : fmt, \
1085 : ##__VA_ARGS__)
1086 :
1087 : #define KUNIT_ASSERT_FAILURE(test, fmt, ...) \
1088 : KUNIT_FAIL_ASSERTION(test, KUNIT_ASSERTION, fmt, ##__VA_ARGS__)
1089 :
1090 : /**
1091 : * KUNIT_ASSERT_TRUE() - Sets an assertion that @condition is true.
1092 : * @test: The test context object.
1093 : * @condition: an arbitrary boolean expression. The test fails and aborts when
1094 : * this does not evaluate to true.
1095 : *
1096 : * This and assertions of the form `KUNIT_ASSERT_*` will cause the test case to
1097 : * fail *and immediately abort* when the specified condition is not met. Unlike
1098 : * an expectation failure, it will prevent the test case from continuing to run;
1099 : * this is otherwise known as an *assertion failure*.
1100 : */
1101 : #define KUNIT_ASSERT_TRUE(test, condition) \
1102 : KUNIT_ASSERT_TRUE_MSG(test, condition, NULL)
1103 :
1104 : #define KUNIT_ASSERT_TRUE_MSG(test, condition, fmt, ...) \
1105 : KUNIT_TRUE_MSG_ASSERTION(test, \
1106 : KUNIT_ASSERTION, \
1107 : condition, \
1108 : fmt, \
1109 : ##__VA_ARGS__)
1110 :
1111 : /**
1112 : * KUNIT_ASSERT_FALSE() - Sets an assertion that @condition is false.
1113 : * @test: The test context object.
1114 : * @condition: an arbitrary boolean expression.
1115 : *
1116 : * Sets an assertion that the value that @condition evaluates to is false. This
1117 : * is the same as KUNIT_EXPECT_FALSE(), except it causes an assertion failure
1118 : * (see KUNIT_ASSERT_TRUE()) when the assertion is not met.
1119 : */
1120 : #define KUNIT_ASSERT_FALSE(test, condition) \
1121 : KUNIT_ASSERT_FALSE_MSG(test, condition, NULL)
1122 :
1123 : #define KUNIT_ASSERT_FALSE_MSG(test, condition, fmt, ...) \
1124 : KUNIT_FALSE_MSG_ASSERTION(test, \
1125 : KUNIT_ASSERTION, \
1126 : condition, \
1127 : fmt, \
1128 : ##__VA_ARGS__)
1129 :
1130 : /**
1131 : * KUNIT_ASSERT_EQ() - Sets an assertion that @left and @right are equal.
1132 : * @test: The test context object.
1133 : * @left: an arbitrary expression that evaluates to a primitive C type.
1134 : * @right: an arbitrary expression that evaluates to a primitive C type.
1135 : *
1136 : * Sets an assertion that the values that @left and @right evaluate to are
1137 : * equal. This is the same as KUNIT_EXPECT_EQ(), except it causes an assertion
1138 : * failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met.
1139 : */
1140 : #define KUNIT_ASSERT_EQ(test, left, right) \
1141 : KUNIT_ASSERT_EQ_MSG(test, left, right, NULL)
1142 :
1143 : #define KUNIT_ASSERT_EQ_MSG(test, left, right, fmt, ...) \
1144 : KUNIT_BINARY_INT_ASSERTION(test, \
1145 : KUNIT_ASSERTION, \
1146 : left, ==, right, \
1147 : fmt, \
1148 : ##__VA_ARGS__)
1149 :
1150 : /**
1151 : * KUNIT_ASSERT_PTR_EQ() - Asserts that pointers @left and @right are equal.
1152 : * @test: The test context object.
1153 : * @left: an arbitrary expression that evaluates to a pointer.
1154 : * @right: an arbitrary expression that evaluates to a pointer.
1155 : *
1156 : * Sets an assertion that the values that @left and @right evaluate to are
1157 : * equal. This is the same as KUNIT_EXPECT_EQ(), except it causes an assertion
1158 : * failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met.
1159 : */
1160 : #define KUNIT_ASSERT_PTR_EQ(test, left, right) \
1161 : KUNIT_ASSERT_PTR_EQ_MSG(test, left, right, NULL)
1162 :
1163 : #define KUNIT_ASSERT_PTR_EQ_MSG(test, left, right, fmt, ...) \
1164 : KUNIT_BINARY_PTR_ASSERTION(test, \
1165 : KUNIT_ASSERTION, \
1166 : left, ==, right, \
1167 : fmt, \
1168 : ##__VA_ARGS__)
1169 :
1170 : /**
1171 : * KUNIT_ASSERT_NE() - An assertion that @left and @right are not equal.
1172 : * @test: The test context object.
1173 : * @left: an arbitrary expression that evaluates to a primitive C type.
1174 : * @right: an arbitrary expression that evaluates to a primitive C type.
1175 : *
1176 : * Sets an assertion that the values that @left and @right evaluate to are not
1177 : * equal. This is the same as KUNIT_EXPECT_NE(), except it causes an assertion
1178 : * failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met.
1179 : */
1180 : #define KUNIT_ASSERT_NE(test, left, right) \
1181 : KUNIT_ASSERT_NE_MSG(test, left, right, NULL)
1182 :
1183 : #define KUNIT_ASSERT_NE_MSG(test, left, right, fmt, ...) \
1184 : KUNIT_BINARY_INT_ASSERTION(test, \
1185 : KUNIT_ASSERTION, \
1186 : left, !=, right, \
1187 : fmt, \
1188 : ##__VA_ARGS__)
1189 :
1190 : /**
1191 : * KUNIT_ASSERT_PTR_NE() - Asserts that pointers @left and @right are not equal.
1192 : * KUNIT_ASSERT_PTR_EQ() - Asserts that pointers @left and @right are equal.
1193 : * @test: The test context object.
1194 : * @left: an arbitrary expression that evaluates to a pointer.
1195 : * @right: an arbitrary expression that evaluates to a pointer.
1196 : *
1197 : * Sets an assertion that the values that @left and @right evaluate to are not
1198 : * equal. This is the same as KUNIT_EXPECT_NE(), except it causes an assertion
1199 : * failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met.
1200 : */
1201 : #define KUNIT_ASSERT_PTR_NE(test, left, right) \
1202 : KUNIT_ASSERT_PTR_NE_MSG(test, left, right, NULL)
1203 :
1204 : #define KUNIT_ASSERT_PTR_NE_MSG(test, left, right, fmt, ...) \
1205 : KUNIT_BINARY_PTR_ASSERTION(test, \
1206 : KUNIT_ASSERTION, \
1207 : left, !=, right, \
1208 : fmt, \
1209 : ##__VA_ARGS__)
1210 : /**
1211 : * KUNIT_ASSERT_LT() - An assertion that @left is less than @right.
1212 : * @test: The test context object.
1213 : * @left: an arbitrary expression that evaluates to a primitive C type.
1214 : * @right: an arbitrary expression that evaluates to a primitive C type.
1215 : *
1216 : * Sets an assertion that the value that @left evaluates to is less than the
1217 : * value that @right evaluates to. This is the same as KUNIT_EXPECT_LT(), except
1218 : * it causes an assertion failure (see KUNIT_ASSERT_TRUE()) when the assertion
1219 : * is not met.
1220 : */
1221 : #define KUNIT_ASSERT_LT(test, left, right) \
1222 : KUNIT_ASSERT_LT_MSG(test, left, right, NULL)
1223 :
1224 : #define KUNIT_ASSERT_LT_MSG(test, left, right, fmt, ...) \
1225 : KUNIT_BINARY_INT_ASSERTION(test, \
1226 : KUNIT_ASSERTION, \
1227 : left, <, right, \
1228 : fmt, \
1229 : ##__VA_ARGS__)
1230 : /**
1231 : * KUNIT_ASSERT_LE() - An assertion that @left is less than or equal to @right.
1232 : * @test: The test context object.
1233 : * @left: an arbitrary expression that evaluates to a primitive C type.
1234 : * @right: an arbitrary expression that evaluates to a primitive C type.
1235 : *
1236 : * Sets an assertion that the value that @left evaluates to is less than or
1237 : * equal to the value that @right evaluates to. This is the same as
1238 : * KUNIT_EXPECT_LE(), except it causes an assertion failure (see
1239 : * KUNIT_ASSERT_TRUE()) when the assertion is not met.
1240 : */
1241 : #define KUNIT_ASSERT_LE(test, left, right) \
1242 : KUNIT_ASSERT_LE_MSG(test, left, right, NULL)
1243 :
1244 : #define KUNIT_ASSERT_LE_MSG(test, left, right, fmt, ...) \
1245 : KUNIT_BINARY_INT_ASSERTION(test, \
1246 : KUNIT_ASSERTION, \
1247 : left, <=, right, \
1248 : fmt, \
1249 : ##__VA_ARGS__)
1250 :
1251 : /**
1252 : * KUNIT_ASSERT_GT() - An assertion that @left is greater than @right.
1253 : * @test: The test context object.
1254 : * @left: an arbitrary expression that evaluates to a primitive C type.
1255 : * @right: an arbitrary expression that evaluates to a primitive C type.
1256 : *
1257 : * Sets an assertion that the value that @left evaluates to is greater than the
1258 : * value that @right evaluates to. This is the same as KUNIT_EXPECT_GT(), except
1259 : * it causes an assertion failure (see KUNIT_ASSERT_TRUE()) when the assertion
1260 : * is not met.
1261 : */
1262 : #define KUNIT_ASSERT_GT(test, left, right) \
1263 : KUNIT_ASSERT_GT_MSG(test, left, right, NULL)
1264 :
1265 : #define KUNIT_ASSERT_GT_MSG(test, left, right, fmt, ...) \
1266 : KUNIT_BINARY_INT_ASSERTION(test, \
1267 : KUNIT_ASSERTION, \
1268 : left, >, right, \
1269 : fmt, \
1270 : ##__VA_ARGS__)
1271 :
1272 : /**
1273 : * KUNIT_ASSERT_GE() - Assertion that @left is greater than or equal to @right.
1274 : * @test: The test context object.
1275 : * @left: an arbitrary expression that evaluates to a primitive C type.
1276 : * @right: an arbitrary expression that evaluates to a primitive C type.
1277 : *
1278 : * Sets an assertion that the value that @left evaluates to is greater than the
1279 : * value that @right evaluates to. This is the same as KUNIT_EXPECT_GE(), except
1280 : * it causes an assertion failure (see KUNIT_ASSERT_TRUE()) when the assertion
1281 : * is not met.
1282 : */
1283 : #define KUNIT_ASSERT_GE(test, left, right) \
1284 : KUNIT_ASSERT_GE_MSG(test, left, right, NULL)
1285 :
1286 : #define KUNIT_ASSERT_GE_MSG(test, left, right, fmt, ...) \
1287 : KUNIT_BINARY_INT_ASSERTION(test, \
1288 : KUNIT_ASSERTION, \
1289 : left, >=, right, \
1290 : fmt, \
1291 : ##__VA_ARGS__)
1292 :
1293 : /**
1294 : * KUNIT_ASSERT_STREQ() - An assertion that strings @left and @right are equal.
1295 : * @test: The test context object.
1296 : * @left: an arbitrary expression that evaluates to a null terminated string.
1297 : * @right: an arbitrary expression that evaluates to a null terminated string.
1298 : *
1299 : * Sets an assertion that the values that @left and @right evaluate to are
1300 : * equal. This is the same as KUNIT_EXPECT_STREQ(), except it causes an
1301 : * assertion failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met.
1302 : */
1303 : #define KUNIT_ASSERT_STREQ(test, left, right) \
1304 : KUNIT_ASSERT_STREQ_MSG(test, left, right, NULL)
1305 :
1306 : #define KUNIT_ASSERT_STREQ_MSG(test, left, right, fmt, ...) \
1307 : KUNIT_BINARY_STR_ASSERTION(test, \
1308 : KUNIT_ASSERTION, \
1309 : left, ==, right, \
1310 : fmt, \
1311 : ##__VA_ARGS__)
1312 :
1313 : /**
1314 : * KUNIT_ASSERT_STRNEQ() - Expects that strings @left and @right are not equal.
1315 : * @test: The test context object.
1316 : * @left: an arbitrary expression that evaluates to a null terminated string.
1317 : * @right: an arbitrary expression that evaluates to a null terminated string.
1318 : *
1319 : * Sets an expectation that the values that @left and @right evaluate to are
1320 : * not equal. This is semantically equivalent to
1321 : * KUNIT_ASSERT_TRUE(@test, strcmp((@left), (@right))). See KUNIT_ASSERT_TRUE()
1322 : * for more information.
1323 : */
1324 : #define KUNIT_ASSERT_STRNEQ(test, left, right) \
1325 : KUNIT_ASSERT_STRNEQ_MSG(test, left, right, NULL)
1326 :
1327 : #define KUNIT_ASSERT_STRNEQ_MSG(test, left, right, fmt, ...) \
1328 : KUNIT_BINARY_STR_ASSERTION(test, \
1329 : KUNIT_ASSERTION, \
1330 : left, !=, right, \
1331 : fmt, \
1332 : ##__VA_ARGS__)
1333 :
1334 : /**
1335 : * KUNIT_ASSERT_NULL() - Asserts that pointers @ptr is null.
1336 : * @test: The test context object.
1337 : * @ptr: an arbitrary pointer.
1338 : *
1339 : * Sets an assertion that the values that @ptr evaluates to is null. This is
1340 : * the same as KUNIT_EXPECT_NULL(), except it causes an assertion
1341 : * failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met.
1342 : */
1343 : #define KUNIT_ASSERT_NULL(test, ptr) \
1344 : KUNIT_ASSERT_NULL_MSG(test, \
1345 : ptr, \
1346 : NULL)
1347 :
1348 : #define KUNIT_ASSERT_NULL_MSG(test, ptr, fmt, ...) \
1349 : KUNIT_BINARY_PTR_ASSERTION(test, \
1350 : KUNIT_ASSERTION, \
1351 : ptr, ==, NULL, \
1352 : fmt, \
1353 : ##__VA_ARGS__)
1354 :
1355 : /**
1356 : * KUNIT_ASSERT_NOT_NULL() - Asserts that pointers @ptr is not null.
1357 : * @test: The test context object.
1358 : * @ptr: an arbitrary pointer.
1359 : *
1360 : * Sets an assertion that the values that @ptr evaluates to is not null. This
1361 : * is the same as KUNIT_EXPECT_NOT_NULL(), except it causes an assertion
1362 : * failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met.
1363 : */
1364 : #define KUNIT_ASSERT_NOT_NULL(test, ptr) \
1365 : KUNIT_ASSERT_NOT_NULL_MSG(test, \
1366 : ptr, \
1367 : NULL)
1368 :
1369 : #define KUNIT_ASSERT_NOT_NULL_MSG(test, ptr, fmt, ...) \
1370 : KUNIT_BINARY_PTR_ASSERTION(test, \
1371 : KUNIT_ASSERTION, \
1372 : ptr, !=, NULL, \
1373 : fmt, \
1374 : ##__VA_ARGS__)
1375 :
1376 : /**
1377 : * KUNIT_ASSERT_NOT_ERR_OR_NULL() - Assertion that @ptr is not null and not err.
1378 : * @test: The test context object.
1379 : * @ptr: an arbitrary pointer.
1380 : *
1381 : * Sets an assertion that the value that @ptr evaluates to is not null and not
1382 : * an errno stored in a pointer. This is the same as
1383 : * KUNIT_EXPECT_NOT_ERR_OR_NULL(), except it causes an assertion failure (see
1384 : * KUNIT_ASSERT_TRUE()) when the assertion is not met.
1385 : */
1386 : #define KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr) \
1387 : KUNIT_ASSERT_NOT_ERR_OR_NULL_MSG(test, ptr, NULL)
1388 :
1389 : #define KUNIT_ASSERT_NOT_ERR_OR_NULL_MSG(test, ptr, fmt, ...) \
1390 : KUNIT_PTR_NOT_ERR_OR_NULL_MSG_ASSERTION(test, \
1391 : KUNIT_ASSERTION, \
1392 : ptr, \
1393 : fmt, \
1394 : ##__VA_ARGS__)
1395 :
1396 : /**
1397 : * KUNIT_ARRAY_PARAM() - Define test parameter generator from an array.
1398 : * @name: prefix for the test parameter generator function.
1399 : * @array: array of test parameters.
1400 : * @get_desc: function to convert param to description; NULL to use default
1401 : *
1402 : * Define function @name_gen_params which uses @array to generate parameters.
1403 : */
1404 : #define KUNIT_ARRAY_PARAM(name, array, get_desc) \
1405 : static const void *name##_gen_params(const void *prev, char *desc) \
1406 : { \
1407 : typeof((array)[0]) *__next = prev ? ((typeof(__next)) prev) + 1 : (array); \
1408 : if (__next - (array) < ARRAY_SIZE((array))) { \
1409 : void (*__get_desc)(typeof(__next), char *) = get_desc; \
1410 : if (__get_desc) \
1411 : __get_desc(__next, desc); \
1412 : return __next; \
1413 : } \
1414 : return NULL; \
1415 : }
1416 :
1417 : // TODO(dlatypov@google.com): consider eventually migrating users to explicitly
1418 : // include resource.h themselves if they need it.
1419 : #include <kunit/resource.h>
1420 :
1421 : #endif /* _KUNIT_TEST_H */
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