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/args.h> 16#include <linux/compiler.h> 17#include <linux/container_of.h> 18#include <linux/err.h> 19#include <linux/init.h> 20#include <linux/jump_label.h> 21#include <linux/kconfig.h> 22#include <linux/kref.h> 23#include <linux/list.h> 24#include <linux/module.h> 25#include <linux/slab.h> 26#include <linux/spinlock.h> 27#include <linux/string.h> 28#include <linux/types.h> 29 30#include <asm/rwonce.h> 31 32/* Static key: true if any KUnit tests are currently running */ 33DECLARE_STATIC_KEY_FALSE(kunit_running); 34 35struct kunit; 36 37/* Size of log associated with test. */ 38#define KUNIT_LOG_SIZE 2048 39 40/* Maximum size of parameter description string. */ 41#define KUNIT_PARAM_DESC_SIZE 128 42 43/* Maximum size of a status comment. */ 44#define KUNIT_STATUS_COMMENT_SIZE 256 45 46/* 47 * TAP specifies subtest stream indentation of 4 spaces, 8 spaces for a 48 * sub-subtest. See the "Subtests" section in 49 * https://node-tap.org/tap-protocol/ 50 */ 51#define KUNIT_INDENT_LEN 4 52#define KUNIT_SUBTEST_INDENT " " 53#define KUNIT_SUBSUBTEST_INDENT " " 54 55/** 56 * enum kunit_status - Type of result for a test or test suite 57 * @KUNIT_SUCCESS: Denotes the test suite has not failed nor been skipped 58 * @KUNIT_FAILURE: Denotes the test has failed. 59 * @KUNIT_SKIPPED: Denotes the test has been skipped. 60 */ 61enum kunit_status { 62 KUNIT_SUCCESS, 63 KUNIT_FAILURE, 64 KUNIT_SKIPPED, 65}; 66 67/* Attribute struct/enum definitions */ 68 69/* 70 * Speed Attribute is stored as an enum and separated into categories of 71 * speed: very_slowm, slow, and normal. These speeds are relative to 72 * other KUnit tests. 73 * 74 * Note: unset speed attribute acts as default of KUNIT_SPEED_NORMAL. 75 */ 76enum kunit_speed { 77 KUNIT_SPEED_UNSET, 78 KUNIT_SPEED_VERY_SLOW, 79 KUNIT_SPEED_SLOW, 80 KUNIT_SPEED_NORMAL, 81 KUNIT_SPEED_MAX = KUNIT_SPEED_NORMAL, 82}; 83 84/* Holds attributes for each test case and suite */ 85struct kunit_attributes { 86 enum kunit_speed speed; 87}; 88 89/** 90 * struct kunit_case - represents an individual test case. 91 * 92 * @run_case: the function representing the actual test case. 93 * @name: the name of the test case. 94 * @generate_params: the generator function for parameterized tests. 95 * @attr: the attributes associated with the test 96 * 97 * A test case is a function with the signature, 98 * ``void (*)(struct kunit *)`` 99 * that makes expectations and assertions (see KUNIT_EXPECT_TRUE() and 100 * KUNIT_ASSERT_TRUE()) about code under test. Each test case is associated 101 * with a &struct kunit_suite and will be run after the suite's init 102 * function and followed by the suite's exit function. 103 * 104 * A test case should be static and should only be created with the 105 * KUNIT_CASE() macro; additionally, every array of test cases should be 106 * terminated with an empty test case. 107 * 108 * Example: 109 * 110 * .. code-block:: c 111 * 112 * void add_test_basic(struct kunit *test) 113 * { 114 * KUNIT_EXPECT_EQ(test, 1, add(1, 0)); 115 * KUNIT_EXPECT_EQ(test, 2, add(1, 1)); 116 * KUNIT_EXPECT_EQ(test, 0, add(-1, 1)); 117 * KUNIT_EXPECT_EQ(test, INT_MAX, add(0, INT_MAX)); 118 * KUNIT_EXPECT_EQ(test, -1, add(INT_MAX, INT_MIN)); 119 * } 120 * 121 * static struct kunit_case example_test_cases[] = { 122 * KUNIT_CASE(add_test_basic), 123 * {} 124 * }; 125 * 126 */ 127struct kunit_case { 128 void (*run_case)(struct kunit *test); 129 const char *name; 130 const void* (*generate_params)(const void *prev, char *desc); 131 struct kunit_attributes attr; 132 133 /* private: internal use only. */ 134 enum kunit_status status; 135 char *module_name; 136 char *log; 137}; 138 139static inline char *kunit_status_to_ok_not_ok(enum kunit_status status) 140{ 141 switch (status) { 142 case KUNIT_SKIPPED: 143 case KUNIT_SUCCESS: 144 return "ok"; 145 case KUNIT_FAILURE: 146 return "not ok"; 147 } 148 return "invalid"; 149} 150 151/** 152 * KUNIT_CASE - A helper for creating a &struct kunit_case 153 * 154 * @test_name: a reference to a test case function. 155 * 156 * Takes a symbol for a function representing a test case and creates a 157 * &struct kunit_case object from it. See the documentation for 158 * &struct kunit_case for an example on how to use it. 159 */ 160#define KUNIT_CASE(test_name) \ 161 { .run_case = test_name, .name = #test_name, \ 162 .module_name = KBUILD_MODNAME} 163 164/** 165 * KUNIT_CASE_ATTR - A helper for creating a &struct kunit_case 166 * with attributes 167 * 168 * @test_name: a reference to a test case function. 169 * @attributes: a reference to a struct kunit_attributes object containing 170 * test attributes 171 */ 172#define KUNIT_CASE_ATTR(test_name, attributes) \ 173 { .run_case = test_name, .name = #test_name, \ 174 .attr = attributes, .module_name = KBUILD_MODNAME} 175 176/** 177 * KUNIT_CASE_SLOW - A helper for creating a &struct kunit_case 178 * with the slow attribute 179 * 180 * @test_name: a reference to a test case function. 181 */ 182 183#define KUNIT_CASE_SLOW(test_name) \ 184 { .run_case = test_name, .name = #test_name, \ 185 .attr.speed = KUNIT_SPEED_SLOW, .module_name = KBUILD_MODNAME} 186 187/** 188 * KUNIT_CASE_PARAM - A helper for creation a parameterized &struct kunit_case 189 * 190 * @test_name: a reference to a test case function. 191 * @gen_params: a reference to a parameter generator function. 192 * 193 * The generator function:: 194 * 195 * const void* gen_params(const void *prev, char *desc) 196 * 197 * is used to lazily generate a series of arbitrarily typed values that fit into 198 * a void*. The argument @prev is the previously returned value, which should be 199 * used to derive the next value; @prev is set to NULL on the initial generator 200 * call. When no more values are available, the generator must return NULL. 201 * Optionally write a string into @desc (size of KUNIT_PARAM_DESC_SIZE) 202 * describing the parameter. 203 */ 204#define KUNIT_CASE_PARAM(test_name, gen_params) \ 205 { .run_case = test_name, .name = #test_name, \ 206 .generate_params = gen_params, .module_name = KBUILD_MODNAME} 207 208/** 209 * KUNIT_CASE_PARAM_ATTR - A helper for creating a parameterized &struct 210 * kunit_case with attributes 211 * 212 * @test_name: a reference to a test case function. 213 * @gen_params: a reference to a parameter generator function. 214 * @attributes: a reference to a struct kunit_attributes object containing 215 * test attributes 216 */ 217#define KUNIT_CASE_PARAM_ATTR(test_name, gen_params, attributes) \ 218 { .run_case = test_name, .name = #test_name, \ 219 .generate_params = gen_params, \ 220 .attr = attributes, .module_name = KBUILD_MODNAME} 221 222/** 223 * struct kunit_suite - describes a related collection of &struct kunit_case 224 * 225 * @name: the name of the test. Purely informational. 226 * @suite_init: called once per test suite before the test cases. 227 * @suite_exit: called once per test suite after all test cases. 228 * @init: called before every test case. 229 * @exit: called after every test case. 230 * @test_cases: a null terminated array of test cases. 231 * @attr: the attributes associated with the test suite 232 * 233 * A kunit_suite is a collection of related &struct kunit_case s, such that 234 * @init is called before every test case and @exit is called after every 235 * test case, similar to the notion of a *test fixture* or a *test class* 236 * in other unit testing frameworks like JUnit or Googletest. 237 * 238 * Note that @exit and @suite_exit will run even if @init or @suite_init 239 * fail: make sure they can handle any inconsistent state which may result. 240 * 241 * Every &struct kunit_case must be associated with a kunit_suite for KUnit 242 * to run it. 243 */ 244struct kunit_suite { 245 const char name[256]; 246 int (*suite_init)(struct kunit_suite *suite); 247 void (*suite_exit)(struct kunit_suite *suite); 248 int (*init)(struct kunit *test); 249 void (*exit)(struct kunit *test); 250 struct kunit_case *test_cases; 251 struct kunit_attributes attr; 252 253 /* private: internal use only */ 254 char status_comment[KUNIT_STATUS_COMMENT_SIZE]; 255 struct dentry *debugfs; 256 char *log; 257 int suite_init_err; 258}; 259 260/* Stores an array of suites, end points one past the end */ 261struct kunit_suite_set { 262 struct kunit_suite * const *start; 263 struct kunit_suite * const *end; 264}; 265 266/** 267 * struct kunit - represents a running instance of a test. 268 * 269 * @priv: for user to store arbitrary data. Commonly used to pass data 270 * created in the init function (see &struct kunit_suite). 271 * 272 * Used to store information about the current context under which the test 273 * is running. Most of this data is private and should only be accessed 274 * indirectly via public functions; the one exception is @priv which can be 275 * used by the test writer to store arbitrary data. 276 */ 277struct kunit { 278 void *priv; 279 280 /* private: internal use only. */ 281 const char *name; /* Read only after initialization! */ 282 char *log; /* Points at case log after initialization */ 283 struct kunit_try_catch try_catch; 284 /* param_value is the current parameter value for a test case. */ 285 const void *param_value; 286 /* param_index stores the index of the parameter in parameterized tests. */ 287 int param_index; 288 /* 289 * success starts as true, and may only be set to false during a 290 * test case; thus, it is safe to update this across multiple 291 * threads using WRITE_ONCE; however, as a consequence, it may only 292 * be read after the test case finishes once all threads associated 293 * with the test case have terminated. 294 */ 295 spinlock_t lock; /* Guards all mutable test state. */ 296 enum kunit_status status; /* Read only after test_case finishes! */ 297 /* 298 * Because resources is a list that may be updated multiple times (with 299 * new resources) from any thread associated with a test case, we must 300 * protect it with some type of lock. 301 */ 302 struct list_head resources; /* Protected by lock. */ 303 304 char status_comment[KUNIT_STATUS_COMMENT_SIZE]; 305}; 306 307static inline void kunit_set_failure(struct kunit *test) 308{ 309 WRITE_ONCE(test->status, KUNIT_FAILURE); 310} 311 312bool kunit_enabled(void); 313const char *kunit_action(void); 314const char *kunit_filter_glob(void); 315char *kunit_filter(void); 316char *kunit_filter_action(void); 317 318void kunit_init_test(struct kunit *test, const char *name, char *log); 319 320int kunit_run_tests(struct kunit_suite *suite); 321 322size_t kunit_suite_num_test_cases(struct kunit_suite *suite); 323 324unsigned int kunit_test_case_num(struct kunit_suite *suite, 325 struct kunit_case *test_case); 326 327struct kunit_suite_set 328kunit_filter_suites(const struct kunit_suite_set *suite_set, 329 const char *filter_glob, 330 char *filters, 331 char *filter_action, 332 int *err); 333void kunit_free_suite_set(struct kunit_suite_set suite_set); 334 335int __kunit_test_suites_init(struct kunit_suite * const * const suites, int num_suites); 336 337void __kunit_test_suites_exit(struct kunit_suite **suites, int num_suites); 338 339void kunit_exec_run_tests(struct kunit_suite_set *suite_set, bool builtin); 340void kunit_exec_list_tests(struct kunit_suite_set *suite_set, bool include_attr); 341 342#if IS_BUILTIN(CONFIG_KUNIT) 343int kunit_run_all_tests(void); 344#else 345static inline int kunit_run_all_tests(void) 346{ 347 return 0; 348} 349#endif /* IS_BUILTIN(CONFIG_KUNIT) */ 350 351#define __kunit_test_suites(unique_array, ...) \ 352 static struct kunit_suite *unique_array[] \ 353 __aligned(sizeof(struct kunit_suite *)) \ 354 __used __section(".kunit_test_suites") = { __VA_ARGS__ } 355 356/** 357 * kunit_test_suites() - used to register one or more &struct kunit_suite 358 * with KUnit. 359 * 360 * @__suites: a statically allocated list of &struct kunit_suite. 361 * 362 * Registers @suites with the test framework. 363 * This is done by placing the array of struct kunit_suite * in the 364 * .kunit_test_suites ELF section. 365 * 366 * When builtin, KUnit tests are all run via the executor at boot, and when 367 * built as a module, they run on module load. 368 * 369 */ 370#define kunit_test_suites(__suites...) \ 371 __kunit_test_suites(__UNIQUE_ID(array), \ 372 ##__suites) 373 374#define kunit_test_suite(suite) kunit_test_suites(&suite) 375 376/** 377 * kunit_test_init_section_suites() - used to register one or more &struct 378 * kunit_suite containing init functions or 379 * init data. 380 * 381 * @__suites: a statically allocated list of &struct kunit_suite. 382 * 383 * This functions identically as kunit_test_suites() except that it suppresses 384 * modpost warnings for referencing functions marked __init or data marked 385 * __initdata; this is OK because currently KUnit only runs tests upon boot 386 * during the init phase or upon loading a module during the init phase. 387 * 388 * NOTE TO KUNIT DEVS: If we ever allow KUnit tests to be run after boot, these 389 * tests must be excluded. 390 * 391 * The only thing this macro does that's different from kunit_test_suites is 392 * that it suffixes the array and suite declarations it makes with _probe; 393 * modpost suppresses warnings about referencing init data for symbols named in 394 * this manner. 395 */ 396#define kunit_test_init_section_suites(__suites...) \ 397 __kunit_test_suites(CONCATENATE(__UNIQUE_ID(array), _probe), \ 398 ##__suites) 399 400#define kunit_test_init_section_suite(suite) \ 401 kunit_test_init_section_suites(&suite) 402 403#define kunit_suite_for_each_test_case(suite, test_case) \ 404 for (test_case = suite->test_cases; test_case->run_case; test_case++) 405 406enum kunit_status kunit_suite_has_succeeded(struct kunit_suite *suite); 407 408/** 409 * kunit_kmalloc_array() - Like kmalloc_array() except the allocation is *test managed*. 410 * @test: The test context object. 411 * @n: number of elements. 412 * @size: The size in bytes of the desired memory. 413 * @gfp: flags passed to underlying kmalloc(). 414 * 415 * Just like `kmalloc_array(...)`, except the allocation is managed by the test case 416 * and is automatically cleaned up after the test case concludes. See kunit_add_action() 417 * for more information. 418 * 419 * Note that some internal context data is also allocated with GFP_KERNEL, 420 * regardless of the gfp passed in. 421 */ 422void *kunit_kmalloc_array(struct kunit *test, size_t n, size_t size, gfp_t gfp); 423 424/** 425 * kunit_kmalloc() - Like kmalloc() except the allocation is *test managed*. 426 * @test: The test context object. 427 * @size: The size in bytes of the desired memory. 428 * @gfp: flags passed to underlying kmalloc(). 429 * 430 * See kmalloc() and kunit_kmalloc_array() for more information. 431 * 432 * Note that some internal context data is also allocated with GFP_KERNEL, 433 * regardless of the gfp passed in. 434 */ 435static inline void *kunit_kmalloc(struct kunit *test, size_t size, gfp_t gfp) 436{ 437 return kunit_kmalloc_array(test, 1, size, gfp); 438} 439 440/** 441 * kunit_kfree() - Like kfree except for allocations managed by KUnit. 442 * @test: The test case to which the resource belongs. 443 * @ptr: The memory allocation to free. 444 */ 445void kunit_kfree(struct kunit *test, const void *ptr); 446 447/** 448 * kunit_kzalloc() - Just like kunit_kmalloc(), but zeroes the allocation. 449 * @test: The test context object. 450 * @size: The size in bytes of the desired memory. 451 * @gfp: flags passed to underlying kmalloc(). 452 * 453 * See kzalloc() and kunit_kmalloc_array() for more information. 454 */ 455static inline void *kunit_kzalloc(struct kunit *test, size_t size, gfp_t gfp) 456{ 457 return kunit_kmalloc(test, size, gfp | __GFP_ZERO); 458} 459 460/** 461 * kunit_kcalloc() - Just like kunit_kmalloc_array(), but zeroes the allocation. 462 * @test: The test context object. 463 * @n: number of elements. 464 * @size: The size in bytes of the desired memory. 465 * @gfp: flags passed to underlying kmalloc(). 466 * 467 * See kcalloc() and kunit_kmalloc_array() for more information. 468 */ 469static inline void *kunit_kcalloc(struct kunit *test, size_t n, size_t size, gfp_t gfp) 470{ 471 return kunit_kmalloc_array(test, n, size, gfp | __GFP_ZERO); 472} 473 474void kunit_cleanup(struct kunit *test); 475 476void __printf(2, 3) kunit_log_append(char *log, const char *fmt, ...); 477 478/** 479 * kunit_mark_skipped() - Marks @test_or_suite as skipped 480 * 481 * @test_or_suite: The test context object. 482 * @fmt: A printk() style format string. 483 * 484 * Marks the test as skipped. @fmt is given output as the test status 485 * comment, typically the reason the test was skipped. 486 * 487 * Test execution continues after kunit_mark_skipped() is called. 488 */ 489#define kunit_mark_skipped(test_or_suite, fmt, ...) \ 490 do { \ 491 WRITE_ONCE((test_or_suite)->status, KUNIT_SKIPPED); \ 492 scnprintf((test_or_suite)->status_comment, \ 493 KUNIT_STATUS_COMMENT_SIZE, \ 494 fmt, ##__VA_ARGS__); \ 495 } while (0) 496 497/** 498 * kunit_skip() - Marks @test_or_suite as skipped 499 * 500 * @test_or_suite: The test context object. 501 * @fmt: A printk() style format string. 502 * 503 * Skips the test. @fmt is given output as the test status 504 * comment, typically the reason the test was skipped. 505 * 506 * Test execution is halted after kunit_skip() is called. 507 */ 508#define kunit_skip(test_or_suite, fmt, ...) \ 509 do { \ 510 kunit_mark_skipped((test_or_suite), fmt, ##__VA_ARGS__);\ 511 kunit_try_catch_throw(&((test_or_suite)->try_catch)); \ 512 } while (0) 513 514/* 515 * printk and log to per-test or per-suite log buffer. Logging only done 516 * if CONFIG_KUNIT_DEBUGFS is 'y'; if it is 'n', no log is allocated/used. 517 */ 518#define kunit_log(lvl, test_or_suite, fmt, ...) \ 519 do { \ 520 printk(lvl fmt, ##__VA_ARGS__); \ 521 kunit_log_append((test_or_suite)->log, fmt, \ 522 ##__VA_ARGS__); \ 523 } while (0) 524 525#define kunit_printk(lvl, test, fmt, ...) \ 526 kunit_log(lvl, test, KUNIT_SUBTEST_INDENT "# %s: " fmt, \ 527 (test)->name, ##__VA_ARGS__) 528 529/** 530 * kunit_info() - Prints an INFO level message associated with @test. 531 * 532 * @test: The test context object. 533 * @fmt: A printk() style format string. 534 * 535 * Prints an info level message associated with the test suite being run. 536 * Takes a variable number of format parameters just like printk(). 537 */ 538#define kunit_info(test, fmt, ...) \ 539 kunit_printk(KERN_INFO, test, fmt, ##__VA_ARGS__) 540 541/** 542 * kunit_warn() - Prints a WARN level message associated with @test. 543 * 544 * @test: The test context object. 545 * @fmt: A printk() style format string. 546 * 547 * Prints a warning level message. 548 */ 549#define kunit_warn(test, fmt, ...) \ 550 kunit_printk(KERN_WARNING, test, fmt, ##__VA_ARGS__) 551 552/** 553 * kunit_err() - Prints an ERROR level message associated with @test. 554 * 555 * @test: The test context object. 556 * @fmt: A printk() style format string. 557 * 558 * Prints an error level message. 559 */ 560#define kunit_err(test, fmt, ...) \ 561 kunit_printk(KERN_ERR, test, fmt, ##__VA_ARGS__) 562 563/** 564 * KUNIT_SUCCEED() - A no-op expectation. Only exists for code clarity. 565 * @test: The test context object. 566 * 567 * The opposite of KUNIT_FAIL(), it is an expectation that cannot fail. In other 568 * words, it does nothing and only exists for code clarity. See 569 * KUNIT_EXPECT_TRUE() for more information. 570 */ 571#define KUNIT_SUCCEED(test) do {} while (0) 572 573void __noreturn __kunit_abort(struct kunit *test); 574 575void __kunit_do_failed_assertion(struct kunit *test, 576 const struct kunit_loc *loc, 577 enum kunit_assert_type type, 578 const struct kunit_assert *assert, 579 assert_format_t assert_format, 580 const char *fmt, ...); 581 582#define _KUNIT_FAILED(test, assert_type, assert_class, assert_format, INITIALIZER, fmt, ...) do { \ 583 static const struct kunit_loc __loc = KUNIT_CURRENT_LOC; \ 584 const struct assert_class __assertion = INITIALIZER; \ 585 __kunit_do_failed_assertion(test, \ 586 &__loc, \ 587 assert_type, \ 588 &__assertion.assert, \ 589 assert_format, \ 590 fmt, \ 591 ##__VA_ARGS__); \ 592 if (assert_type == KUNIT_ASSERTION) \ 593 __kunit_abort(test); \ 594} while (0) 595 596 597#define KUNIT_FAIL_ASSERTION(test, assert_type, fmt, ...) \ 598 _KUNIT_FAILED(test, \ 599 assert_type, \ 600 kunit_fail_assert, \ 601 kunit_fail_assert_format, \ 602 {}, \ 603 fmt, \ 604 ##__VA_ARGS__) 605 606/** 607 * KUNIT_FAIL() - Always causes a test to fail when evaluated. 608 * @test: The test context object. 609 * @fmt: an informational message to be printed when the assertion is made. 610 * @...: string format arguments. 611 * 612 * The opposite of KUNIT_SUCCEED(), it is an expectation that always fails. In 613 * other words, it always results in a failed expectation, and consequently 614 * always causes the test case to fail when evaluated. See KUNIT_EXPECT_TRUE() 615 * for more information. 616 */ 617#define KUNIT_FAIL(test, fmt, ...) \ 618 KUNIT_FAIL_ASSERTION(test, \ 619 KUNIT_EXPECTATION, \ 620 fmt, \ 621 ##__VA_ARGS__) 622 623/* Helper to safely pass around an initializer list to other macros. */ 624#define KUNIT_INIT_ASSERT(initializers...) { initializers } 625 626#define KUNIT_UNARY_ASSERTION(test, \ 627 assert_type, \ 628 condition_, \ 629 expected_true_, \ 630 fmt, \ 631 ...) \ 632do { \ 633 if (likely(!!(condition_) == !!expected_true_)) \ 634 break; \ 635 \ 636 _KUNIT_FAILED(test, \ 637 assert_type, \ 638 kunit_unary_assert, \ 639 kunit_unary_assert_format, \ 640 KUNIT_INIT_ASSERT(.condition = #condition_, \ 641 .expected_true = expected_true_), \ 642 fmt, \ 643 ##__VA_ARGS__); \ 644} while (0) 645 646#define KUNIT_TRUE_MSG_ASSERTION(test, assert_type, condition, fmt, ...) \ 647 KUNIT_UNARY_ASSERTION(test, \ 648 assert_type, \ 649 condition, \ 650 true, \ 651 fmt, \ 652 ##__VA_ARGS__) 653 654#define KUNIT_FALSE_MSG_ASSERTION(test, assert_type, condition, fmt, ...) \ 655 KUNIT_UNARY_ASSERTION(test, \ 656 assert_type, \ 657 condition, \ 658 false, \ 659 fmt, \ 660 ##__VA_ARGS__) 661 662/* 663 * A factory macro for defining the assertions and expectations for the basic 664 * comparisons defined for the built in types. 665 * 666 * Unfortunately, there is no common type that all types can be promoted to for 667 * which all the binary operators behave the same way as for the actual types 668 * (for example, there is no type that long long and unsigned long long can 669 * both be cast to where the comparison result is preserved for all values). So 670 * the best we can do is do the comparison in the original types and then coerce 671 * everything to long long for printing; this way, the comparison behaves 672 * correctly and the printed out value usually makes sense without 673 * interpretation, but can always be interpreted to figure out the actual 674 * value. 675 */ 676#define KUNIT_BASE_BINARY_ASSERTION(test, \ 677 assert_class, \ 678 format_func, \ 679 assert_type, \ 680 left, \ 681 op, \ 682 right, \ 683 fmt, \ 684 ...) \ 685do { \ 686 const typeof(left) __left = (left); \ 687 const typeof(right) __right = (right); \ 688 static const struct kunit_binary_assert_text __text = { \ 689 .operation = #op, \ 690 .left_text = #left, \ 691 .right_text = #right, \ 692 }; \ 693 \ 694 if (likely(__left op __right)) \ 695 break; \ 696 \ 697 _KUNIT_FAILED(test, \ 698 assert_type, \ 699 assert_class, \ 700 format_func, \ 701 KUNIT_INIT_ASSERT(.text = &__text, \ 702 .left_value = __left, \ 703 .right_value = __right), \ 704 fmt, \ 705 ##__VA_ARGS__); \ 706} while (0) 707 708#define KUNIT_BINARY_INT_ASSERTION(test, \ 709 assert_type, \ 710 left, \ 711 op, \ 712 right, \ 713 fmt, \ 714 ...) \ 715 KUNIT_BASE_BINARY_ASSERTION(test, \ 716 kunit_binary_assert, \ 717 kunit_binary_assert_format, \ 718 assert_type, \ 719 left, op, right, \ 720 fmt, \ 721 ##__VA_ARGS__) 722 723#define KUNIT_BINARY_PTR_ASSERTION(test, \ 724 assert_type, \ 725 left, \ 726 op, \ 727 right, \ 728 fmt, \ 729 ...) \ 730 KUNIT_BASE_BINARY_ASSERTION(test, \ 731 kunit_binary_ptr_assert, \ 732 kunit_binary_ptr_assert_format, \ 733 assert_type, \ 734 left, op, right, \ 735 fmt, \ 736 ##__VA_ARGS__) 737 738#define KUNIT_BINARY_STR_ASSERTION(test, \ 739 assert_type, \ 740 left, \ 741 op, \ 742 right, \ 743 fmt, \ 744 ...) \ 745do { \ 746 const char *__left = (left); \ 747 const char *__right = (right); \ 748 static const struct kunit_binary_assert_text __text = { \ 749 .operation = #op, \ 750 .left_text = #left, \ 751 .right_text = #right, \ 752 }; \ 753 \ 754 if (likely(strcmp(__left, __right) op 0)) \ 755 break; \ 756 \ 757 \ 758 _KUNIT_FAILED(test, \ 759 assert_type, \ 760 kunit_binary_str_assert, \ 761 kunit_binary_str_assert_format, \ 762 KUNIT_INIT_ASSERT(.text = &__text, \ 763 .left_value = __left, \ 764 .right_value = __right), \ 765 fmt, \ 766 ##__VA_ARGS__); \ 767} while (0) 768 769#define KUNIT_MEM_ASSERTION(test, \ 770 assert_type, \ 771 left, \ 772 op, \ 773 right, \ 774 size_, \ 775 fmt, \ 776 ...) \ 777do { \ 778 const void *__left = (left); \ 779 const void *__right = (right); \ 780 const size_t __size = (size_); \ 781 static const struct kunit_binary_assert_text __text = { \ 782 .operation = #op, \ 783 .left_text = #left, \ 784 .right_text = #right, \ 785 }; \ 786 \ 787 if (likely(__left && __right)) \ 788 if (likely(memcmp(__left, __right, __size) op 0)) \ 789 break; \ 790 \ 791 _KUNIT_FAILED(test, \ 792 assert_type, \ 793 kunit_mem_assert, \ 794 kunit_mem_assert_format, \ 795 KUNIT_INIT_ASSERT(.text = &__text, \ 796 .left_value = __left, \ 797 .right_value = __right, \ 798 .size = __size), \ 799 fmt, \ 800 ##__VA_ARGS__); \ 801} while (0) 802 803#define KUNIT_PTR_NOT_ERR_OR_NULL_MSG_ASSERTION(test, \ 804 assert_type, \ 805 ptr, \ 806 fmt, \ 807 ...) \ 808do { \ 809 const typeof(ptr) __ptr = (ptr); \ 810 \ 811 if (!IS_ERR_OR_NULL(__ptr)) \ 812 break; \ 813 \ 814 _KUNIT_FAILED(test, \ 815 assert_type, \ 816 kunit_ptr_not_err_assert, \ 817 kunit_ptr_not_err_assert_format, \ 818 KUNIT_INIT_ASSERT(.text = #ptr, .value = __ptr), \ 819 fmt, \ 820 ##__VA_ARGS__); \ 821} while (0) 822 823/** 824 * KUNIT_EXPECT_TRUE() - Causes a test failure when the expression is not true. 825 * @test: The test context object. 826 * @condition: an arbitrary boolean expression. The test fails when this does 827 * not evaluate to true. 828 * 829 * This and expectations of the form `KUNIT_EXPECT_*` will cause the test case 830 * to fail when the specified condition is not met; however, it will not prevent 831 * the test case from continuing to run; this is otherwise known as an 832 * *expectation failure*. 833 */ 834#define KUNIT_EXPECT_TRUE(test, condition) \ 835 KUNIT_EXPECT_TRUE_MSG(test, condition, NULL) 836 837#define KUNIT_EXPECT_TRUE_MSG(test, condition, fmt, ...) \ 838 KUNIT_TRUE_MSG_ASSERTION(test, \ 839 KUNIT_EXPECTATION, \ 840 condition, \ 841 fmt, \ 842 ##__VA_ARGS__) 843 844/** 845 * KUNIT_EXPECT_FALSE() - Makes a test failure when the expression is not false. 846 * @test: The test context object. 847 * @condition: an arbitrary boolean expression. The test fails when this does 848 * not evaluate to false. 849 * 850 * Sets an expectation that @condition evaluates to false. See 851 * KUNIT_EXPECT_TRUE() for more information. 852 */ 853#define KUNIT_EXPECT_FALSE(test, condition) \ 854 KUNIT_EXPECT_FALSE_MSG(test, condition, NULL) 855 856#define KUNIT_EXPECT_FALSE_MSG(test, condition, fmt, ...) \ 857 KUNIT_FALSE_MSG_ASSERTION(test, \ 858 KUNIT_EXPECTATION, \ 859 condition, \ 860 fmt, \ 861 ##__VA_ARGS__) 862 863/** 864 * KUNIT_EXPECT_EQ() - Sets an expectation that @left and @right are equal. 865 * @test: The test context object. 866 * @left: an arbitrary expression that evaluates to a primitive C type. 867 * @right: an arbitrary expression that evaluates to a primitive C type. 868 * 869 * Sets an expectation that the values that @left and @right evaluate to are 870 * equal. This is semantically equivalent to 871 * KUNIT_EXPECT_TRUE(@test, (@left) == (@right)). See KUNIT_EXPECT_TRUE() for 872 * more information. 873 */ 874#define KUNIT_EXPECT_EQ(test, left, right) \ 875 KUNIT_EXPECT_EQ_MSG(test, left, right, NULL) 876 877#define KUNIT_EXPECT_EQ_MSG(test, left, right, fmt, ...) \ 878 KUNIT_BINARY_INT_ASSERTION(test, \ 879 KUNIT_EXPECTATION, \ 880 left, ==, right, \ 881 fmt, \ 882 ##__VA_ARGS__) 883 884/** 885 * KUNIT_EXPECT_PTR_EQ() - Expects that pointers @left and @right are equal. 886 * @test: The test context object. 887 * @left: an arbitrary expression that evaluates to a pointer. 888 * @right: an arbitrary expression that evaluates to a pointer. 889 * 890 * Sets an expectation that the values that @left and @right evaluate to are 891 * equal. This is semantically equivalent to 892 * KUNIT_EXPECT_TRUE(@test, (@left) == (@right)). See KUNIT_EXPECT_TRUE() for 893 * more information. 894 */ 895#define KUNIT_EXPECT_PTR_EQ(test, left, right) \ 896 KUNIT_EXPECT_PTR_EQ_MSG(test, left, right, NULL) 897 898#define KUNIT_EXPECT_PTR_EQ_MSG(test, left, right, fmt, ...) \ 899 KUNIT_BINARY_PTR_ASSERTION(test, \ 900 KUNIT_EXPECTATION, \ 901 left, ==, right, \ 902 fmt, \ 903 ##__VA_ARGS__) 904 905/** 906 * KUNIT_EXPECT_NE() - An expectation that @left and @right are not equal. 907 * @test: The test context object. 908 * @left: an arbitrary expression that evaluates to a primitive C type. 909 * @right: an arbitrary expression that evaluates to a primitive C type. 910 * 911 * Sets an expectation that the values that @left and @right evaluate to are not 912 * equal. This is semantically equivalent to 913 * KUNIT_EXPECT_TRUE(@test, (@left) != (@right)). See KUNIT_EXPECT_TRUE() for 914 * more information. 915 */ 916#define KUNIT_EXPECT_NE(test, left, right) \ 917 KUNIT_EXPECT_NE_MSG(test, left, right, NULL) 918 919#define KUNIT_EXPECT_NE_MSG(test, left, right, fmt, ...) \ 920 KUNIT_BINARY_INT_ASSERTION(test, \ 921 KUNIT_EXPECTATION, \ 922 left, !=, right, \ 923 fmt, \ 924 ##__VA_ARGS__) 925 926/** 927 * KUNIT_EXPECT_PTR_NE() - Expects that pointers @left and @right are not equal. 928 * @test: The test context object. 929 * @left: an arbitrary expression that evaluates to a pointer. 930 * @right: an arbitrary expression that evaluates to a pointer. 931 * 932 * Sets an expectation that the values that @left and @right evaluate to are not 933 * equal. This is semantically equivalent to 934 * KUNIT_EXPECT_TRUE(@test, (@left) != (@right)). See KUNIT_EXPECT_TRUE() for 935 * more information. 936 */ 937#define KUNIT_EXPECT_PTR_NE(test, left, right) \ 938 KUNIT_EXPECT_PTR_NE_MSG(test, left, right, NULL) 939 940#define KUNIT_EXPECT_PTR_NE_MSG(test, left, right, fmt, ...) \ 941 KUNIT_BINARY_PTR_ASSERTION(test, \ 942 KUNIT_EXPECTATION, \ 943 left, !=, right, \ 944 fmt, \ 945 ##__VA_ARGS__) 946 947/** 948 * KUNIT_EXPECT_LT() - An expectation that @left is less than @right. 949 * @test: The test context object. 950 * @left: an arbitrary expression that evaluates to a primitive C type. 951 * @right: an arbitrary expression that evaluates to a primitive C type. 952 * 953 * Sets an expectation that the value that @left evaluates to is less than the 954 * value that @right evaluates to. This is semantically equivalent to 955 * KUNIT_EXPECT_TRUE(@test, (@left) < (@right)). See KUNIT_EXPECT_TRUE() for 956 * more information. 957 */ 958#define KUNIT_EXPECT_LT(test, left, right) \ 959 KUNIT_EXPECT_LT_MSG(test, left, right, NULL) 960 961#define KUNIT_EXPECT_LT_MSG(test, left, right, fmt, ...) \ 962 KUNIT_BINARY_INT_ASSERTION(test, \ 963 KUNIT_EXPECTATION, \ 964 left, <, right, \ 965 fmt, \ 966 ##__VA_ARGS__) 967 968/** 969 * KUNIT_EXPECT_LE() - Expects that @left is less than or equal to @right. 970 * @test: The test context object. 971 * @left: an arbitrary expression that evaluates to a primitive C type. 972 * @right: an arbitrary expression that evaluates to a primitive C type. 973 * 974 * Sets an expectation that the value that @left evaluates to is less than or 975 * equal to the value that @right evaluates to. Semantically this is equivalent 976 * to KUNIT_EXPECT_TRUE(@test, (@left) <= (@right)). See KUNIT_EXPECT_TRUE() for 977 * more information. 978 */ 979#define KUNIT_EXPECT_LE(test, left, right) \ 980 KUNIT_EXPECT_LE_MSG(test, left, right, NULL) 981 982#define KUNIT_EXPECT_LE_MSG(test, left, right, fmt, ...) \ 983 KUNIT_BINARY_INT_ASSERTION(test, \ 984 KUNIT_EXPECTATION, \ 985 left, <=, right, \ 986 fmt, \ 987 ##__VA_ARGS__) 988 989/** 990 * KUNIT_EXPECT_GT() - An expectation that @left is greater than @right. 991 * @test: The test context object. 992 * @left: an arbitrary expression that evaluates to a primitive C type. 993 * @right: an arbitrary expression that evaluates to a primitive C type. 994 * 995 * Sets an expectation that the value that @left evaluates to is greater than 996 * the value that @right evaluates to. This is semantically equivalent to 997 * KUNIT_EXPECT_TRUE(@test, (@left) > (@right)). See KUNIT_EXPECT_TRUE() for 998 * more information. 999 */ 1000#define KUNIT_EXPECT_GT(test, left, right) \ 1001 KUNIT_EXPECT_GT_MSG(test, left, right, NULL) 1002 1003#define KUNIT_EXPECT_GT_MSG(test, left, right, fmt, ...) \ 1004 KUNIT_BINARY_INT_ASSERTION(test, \ 1005 KUNIT_EXPECTATION, \ 1006 left, >, right, \ 1007 fmt, \ 1008 ##__VA_ARGS__) 1009 1010/** 1011 * KUNIT_EXPECT_GE() - Expects that @left is greater than or equal to @right. 1012 * @test: The test context object. 1013 * @left: an arbitrary expression that evaluates to a primitive C type. 1014 * @right: an arbitrary expression that evaluates to a primitive C type. 1015 * 1016 * Sets an expectation that the value that @left evaluates to is greater than 1017 * the value that @right evaluates to. This is semantically equivalent to 1018 * KUNIT_EXPECT_TRUE(@test, (@left) >= (@right)). See KUNIT_EXPECT_TRUE() for 1019 * more information. 1020 */ 1021#define KUNIT_EXPECT_GE(test, left, right) \ 1022 KUNIT_EXPECT_GE_MSG(test, left, right, NULL) 1023 1024#define KUNIT_EXPECT_GE_MSG(test, left, right, fmt, ...) \ 1025 KUNIT_BINARY_INT_ASSERTION(test, \ 1026 KUNIT_EXPECTATION, \ 1027 left, >=, right, \ 1028 fmt, \ 1029 ##__VA_ARGS__) 1030 1031/** 1032 * KUNIT_EXPECT_STREQ() - Expects that strings @left and @right are equal. 1033 * @test: The test context object. 1034 * @left: an arbitrary expression that evaluates to a null terminated string. 1035 * @right: an arbitrary expression that evaluates to a null terminated string. 1036 * 1037 * Sets an expectation that the values that @left and @right evaluate to are 1038 * equal. This is semantically equivalent to 1039 * KUNIT_EXPECT_TRUE(@test, !strcmp((@left), (@right))). See KUNIT_EXPECT_TRUE() 1040 * for more information. 1041 */ 1042#define KUNIT_EXPECT_STREQ(test, left, right) \ 1043 KUNIT_EXPECT_STREQ_MSG(test, left, right, NULL) 1044 1045#define KUNIT_EXPECT_STREQ_MSG(test, left, right, fmt, ...) \ 1046 KUNIT_BINARY_STR_ASSERTION(test, \ 1047 KUNIT_EXPECTATION, \ 1048 left, ==, right, \ 1049 fmt, \ 1050 ##__VA_ARGS__) 1051 1052/** 1053 * KUNIT_EXPECT_STRNEQ() - Expects that strings @left and @right are not equal. 1054 * @test: The test context object. 1055 * @left: an arbitrary expression that evaluates to a null terminated string. 1056 * @right: an arbitrary expression that evaluates to a null terminated string. 1057 * 1058 * Sets an expectation that the values that @left and @right evaluate to are 1059 * not equal. This is semantically equivalent to 1060 * KUNIT_EXPECT_TRUE(@test, strcmp((@left), (@right))). See KUNIT_EXPECT_TRUE() 1061 * for more information. 1062 */ 1063#define KUNIT_EXPECT_STRNEQ(test, left, right) \ 1064 KUNIT_EXPECT_STRNEQ_MSG(test, left, right, NULL) 1065 1066#define KUNIT_EXPECT_STRNEQ_MSG(test, left, right, fmt, ...) \ 1067 KUNIT_BINARY_STR_ASSERTION(test, \ 1068 KUNIT_EXPECTATION, \ 1069 left, !=, right, \ 1070 fmt, \ 1071 ##__VA_ARGS__) 1072 1073/** 1074 * KUNIT_EXPECT_MEMEQ() - Expects that the first @size bytes of @left and @right are equal. 1075 * @test: The test context object. 1076 * @left: An arbitrary expression that evaluates to the specified size. 1077 * @right: An arbitrary expression that evaluates to the specified size. 1078 * @size: Number of bytes compared. 1079 * 1080 * Sets an expectation that the values that @left and @right evaluate to are 1081 * equal. This is semantically equivalent to 1082 * KUNIT_EXPECT_TRUE(@test, !memcmp((@left), (@right), (@size))). See 1083 * KUNIT_EXPECT_TRUE() for more information. 1084 * 1085 * Although this expectation works for any memory block, it is not recommended 1086 * for comparing more structured data, such as structs. This expectation is 1087 * recommended for comparing, for example, data arrays. 1088 */ 1089#define KUNIT_EXPECT_MEMEQ(test, left, right, size) \ 1090 KUNIT_EXPECT_MEMEQ_MSG(test, left, right, size, NULL) 1091 1092#define KUNIT_EXPECT_MEMEQ_MSG(test, left, right, size, fmt, ...) \ 1093 KUNIT_MEM_ASSERTION(test, \ 1094 KUNIT_EXPECTATION, \ 1095 left, ==, right, \ 1096 size, \ 1097 fmt, \ 1098 ##__VA_ARGS__) 1099 1100/** 1101 * KUNIT_EXPECT_MEMNEQ() - Expects that the first @size bytes of @left and @right are not equal. 1102 * @test: The test context object. 1103 * @left: An arbitrary expression that evaluates to the specified size. 1104 * @right: An arbitrary expression that evaluates to the specified size. 1105 * @size: Number of bytes compared. 1106 * 1107 * Sets an expectation that the values that @left and @right evaluate to are 1108 * not equal. This is semantically equivalent to 1109 * KUNIT_EXPECT_TRUE(@test, memcmp((@left), (@right), (@size))). See 1110 * KUNIT_EXPECT_TRUE() for more information. 1111 * 1112 * Although this expectation works for any memory block, it is not recommended 1113 * for comparing more structured data, such as structs. This expectation is 1114 * recommended for comparing, for example, data arrays. 1115 */ 1116#define KUNIT_EXPECT_MEMNEQ(test, left, right, size) \ 1117 KUNIT_EXPECT_MEMNEQ_MSG(test, left, right, size, NULL) 1118 1119#define KUNIT_EXPECT_MEMNEQ_MSG(test, left, right, size, fmt, ...) \ 1120 KUNIT_MEM_ASSERTION(test, \ 1121 KUNIT_EXPECTATION, \ 1122 left, !=, right, \ 1123 size, \ 1124 fmt, \ 1125 ##__VA_ARGS__) 1126 1127/** 1128 * KUNIT_EXPECT_NULL() - Expects that @ptr is null. 1129 * @test: The test context object. 1130 * @ptr: an arbitrary pointer. 1131 * 1132 * Sets an expectation that the value that @ptr evaluates to is null. This is 1133 * semantically equivalent to KUNIT_EXPECT_PTR_EQ(@test, ptr, NULL). 1134 * See KUNIT_EXPECT_TRUE() for more information. 1135 */ 1136#define KUNIT_EXPECT_NULL(test, ptr) \ 1137 KUNIT_EXPECT_NULL_MSG(test, \ 1138 ptr, \ 1139 NULL) 1140 1141#define KUNIT_EXPECT_NULL_MSG(test, ptr, fmt, ...) \ 1142 KUNIT_BINARY_PTR_ASSERTION(test, \ 1143 KUNIT_EXPECTATION, \ 1144 ptr, ==, NULL, \ 1145 fmt, \ 1146 ##__VA_ARGS__) 1147 1148/** 1149 * KUNIT_EXPECT_NOT_NULL() - Expects that @ptr is not null. 1150 * @test: The test context object. 1151 * @ptr: an arbitrary pointer. 1152 * 1153 * Sets an expectation that the value that @ptr evaluates to is not null. This 1154 * is semantically equivalent to KUNIT_EXPECT_PTR_NE(@test, ptr, NULL). 1155 * See KUNIT_EXPECT_TRUE() for more information. 1156 */ 1157#define KUNIT_EXPECT_NOT_NULL(test, ptr) \ 1158 KUNIT_EXPECT_NOT_NULL_MSG(test, \ 1159 ptr, \ 1160 NULL) 1161 1162#define KUNIT_EXPECT_NOT_NULL_MSG(test, ptr, fmt, ...) \ 1163 KUNIT_BINARY_PTR_ASSERTION(test, \ 1164 KUNIT_EXPECTATION, \ 1165 ptr, !=, NULL, \ 1166 fmt, \ 1167 ##__VA_ARGS__) 1168 1169/** 1170 * KUNIT_EXPECT_NOT_ERR_OR_NULL() - Expects that @ptr is not null and not err. 1171 * @test: The test context object. 1172 * @ptr: an arbitrary pointer. 1173 * 1174 * Sets an expectation that the value that @ptr evaluates to is not null and not 1175 * an errno stored in a pointer. This is semantically equivalent to 1176 * KUNIT_EXPECT_TRUE(@test, !IS_ERR_OR_NULL(@ptr)). See KUNIT_EXPECT_TRUE() for 1177 * more information. 1178 */ 1179#define KUNIT_EXPECT_NOT_ERR_OR_NULL(test, ptr) \ 1180 KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, ptr, NULL) 1181 1182#define KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, ptr, fmt, ...) \ 1183 KUNIT_PTR_NOT_ERR_OR_NULL_MSG_ASSERTION(test, \ 1184 KUNIT_EXPECTATION, \ 1185 ptr, \ 1186 fmt, \ 1187 ##__VA_ARGS__) 1188 1189#define KUNIT_ASSERT_FAILURE(test, fmt, ...) \ 1190 KUNIT_FAIL_ASSERTION(test, KUNIT_ASSERTION, fmt, ##__VA_ARGS__) 1191 1192/** 1193 * KUNIT_ASSERT_TRUE() - Sets an assertion that @condition is true. 1194 * @test: The test context object. 1195 * @condition: an arbitrary boolean expression. The test fails and aborts when 1196 * this does not evaluate to true. 1197 * 1198 * This and assertions of the form `KUNIT_ASSERT_*` will cause the test case to 1199 * fail *and immediately abort* when the specified condition is not met. Unlike 1200 * an expectation failure, it will prevent the test case from continuing to run; 1201 * this is otherwise known as an *assertion failure*. 1202 */ 1203#define KUNIT_ASSERT_TRUE(test, condition) \ 1204 KUNIT_ASSERT_TRUE_MSG(test, condition, NULL) 1205 1206#define KUNIT_ASSERT_TRUE_MSG(test, condition, fmt, ...) \ 1207 KUNIT_TRUE_MSG_ASSERTION(test, \ 1208 KUNIT_ASSERTION, \ 1209 condition, \ 1210 fmt, \ 1211 ##__VA_ARGS__) 1212 1213/** 1214 * KUNIT_ASSERT_FALSE() - Sets an assertion that @condition is false. 1215 * @test: The test context object. 1216 * @condition: an arbitrary boolean expression. 1217 * 1218 * Sets an assertion that the value that @condition evaluates to is false. This 1219 * is the same as KUNIT_EXPECT_FALSE(), except it causes an assertion failure 1220 * (see KUNIT_ASSERT_TRUE()) when the assertion is not met. 1221 */ 1222#define KUNIT_ASSERT_FALSE(test, condition) \ 1223 KUNIT_ASSERT_FALSE_MSG(test, condition, NULL) 1224 1225#define KUNIT_ASSERT_FALSE_MSG(test, condition, fmt, ...) \ 1226 KUNIT_FALSE_MSG_ASSERTION(test, \ 1227 KUNIT_ASSERTION, \ 1228 condition, \ 1229 fmt, \ 1230 ##__VA_ARGS__) 1231 1232/** 1233 * KUNIT_ASSERT_EQ() - Sets an assertion that @left and @right are equal. 1234 * @test: The test context object. 1235 * @left: an arbitrary expression that evaluates to a primitive C type. 1236 * @right: an arbitrary expression that evaluates to a primitive C type. 1237 * 1238 * Sets an assertion that the values that @left and @right evaluate to are 1239 * equal. This is the same as KUNIT_EXPECT_EQ(), except it causes an assertion 1240 * failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met. 1241 */ 1242#define KUNIT_ASSERT_EQ(test, left, right) \ 1243 KUNIT_ASSERT_EQ_MSG(test, left, right, NULL) 1244 1245#define KUNIT_ASSERT_EQ_MSG(test, left, right, fmt, ...) \ 1246 KUNIT_BINARY_INT_ASSERTION(test, \ 1247 KUNIT_ASSERTION, \ 1248 left, ==, right, \ 1249 fmt, \ 1250 ##__VA_ARGS__) 1251 1252/** 1253 * KUNIT_ASSERT_PTR_EQ() - Asserts that pointers @left and @right are equal. 1254 * @test: The test context object. 1255 * @left: an arbitrary expression that evaluates to a pointer. 1256 * @right: an arbitrary expression that evaluates to a pointer. 1257 * 1258 * Sets an assertion that the values that @left and @right evaluate to are 1259 * equal. This is the same as KUNIT_EXPECT_EQ(), except it causes an assertion 1260 * failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met. 1261 */ 1262#define KUNIT_ASSERT_PTR_EQ(test, left, right) \ 1263 KUNIT_ASSERT_PTR_EQ_MSG(test, left, right, NULL) 1264 1265#define KUNIT_ASSERT_PTR_EQ_MSG(test, left, right, fmt, ...) \ 1266 KUNIT_BINARY_PTR_ASSERTION(test, \ 1267 KUNIT_ASSERTION, \ 1268 left, ==, right, \ 1269 fmt, \ 1270 ##__VA_ARGS__) 1271 1272/** 1273 * KUNIT_ASSERT_NE() - An assertion that @left and @right are not equal. 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 values that @left and @right evaluate to are not 1279 * equal. This is the same as KUNIT_EXPECT_NE(), except it causes an assertion 1280 * failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met. 1281 */ 1282#define KUNIT_ASSERT_NE(test, left, right) \ 1283 KUNIT_ASSERT_NE_MSG(test, left, right, NULL) 1284 1285#define KUNIT_ASSERT_NE_MSG(test, left, right, fmt, ...) \ 1286 KUNIT_BINARY_INT_ASSERTION(test, \ 1287 KUNIT_ASSERTION, \ 1288 left, !=, right, \ 1289 fmt, \ 1290 ##__VA_ARGS__) 1291 1292/** 1293 * KUNIT_ASSERT_PTR_NE() - Asserts that pointers @left and @right are not equal. 1294 * KUNIT_ASSERT_PTR_EQ() - Asserts that pointers @left and @right are equal. 1295 * @test: The test context object. 1296 * @left: an arbitrary expression that evaluates to a pointer. 1297 * @right: an arbitrary expression that evaluates to a pointer. 1298 * 1299 * Sets an assertion that the values that @left and @right evaluate to are not 1300 * equal. This is the same as KUNIT_EXPECT_NE(), except it causes an assertion 1301 * failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met. 1302 */ 1303#define KUNIT_ASSERT_PTR_NE(test, left, right) \ 1304 KUNIT_ASSERT_PTR_NE_MSG(test, left, right, NULL) 1305 1306#define KUNIT_ASSERT_PTR_NE_MSG(test, left, right, fmt, ...) \ 1307 KUNIT_BINARY_PTR_ASSERTION(test, \ 1308 KUNIT_ASSERTION, \ 1309 left, !=, right, \ 1310 fmt, \ 1311 ##__VA_ARGS__) 1312/** 1313 * KUNIT_ASSERT_LT() - An assertion that @left is less than @right. 1314 * @test: The test context object. 1315 * @left: an arbitrary expression that evaluates to a primitive C type. 1316 * @right: an arbitrary expression that evaluates to a primitive C type. 1317 * 1318 * Sets an assertion that the value that @left evaluates to is less than the 1319 * value that @right evaluates to. This is the same as KUNIT_EXPECT_LT(), except 1320 * it causes an assertion failure (see KUNIT_ASSERT_TRUE()) when the assertion 1321 * is not met. 1322 */ 1323#define KUNIT_ASSERT_LT(test, left, right) \ 1324 KUNIT_ASSERT_LT_MSG(test, left, right, NULL) 1325 1326#define KUNIT_ASSERT_LT_MSG(test, left, right, fmt, ...) \ 1327 KUNIT_BINARY_INT_ASSERTION(test, \ 1328 KUNIT_ASSERTION, \ 1329 left, <, right, \ 1330 fmt, \ 1331 ##__VA_ARGS__) 1332/** 1333 * KUNIT_ASSERT_LE() - An assertion that @left is less than or equal to @right. 1334 * @test: The test context object. 1335 * @left: an arbitrary expression that evaluates to a primitive C type. 1336 * @right: an arbitrary expression that evaluates to a primitive C type. 1337 * 1338 * Sets an assertion that the value that @left evaluates to is less than or 1339 * equal to the value that @right evaluates to. This is the same as 1340 * KUNIT_EXPECT_LE(), except it causes an assertion failure (see 1341 * KUNIT_ASSERT_TRUE()) when the assertion is not met. 1342 */ 1343#define KUNIT_ASSERT_LE(test, left, right) \ 1344 KUNIT_ASSERT_LE_MSG(test, left, right, NULL) 1345 1346#define KUNIT_ASSERT_LE_MSG(test, left, right, fmt, ...) \ 1347 KUNIT_BINARY_INT_ASSERTION(test, \ 1348 KUNIT_ASSERTION, \ 1349 left, <=, right, \ 1350 fmt, \ 1351 ##__VA_ARGS__) 1352 1353/** 1354 * KUNIT_ASSERT_GT() - An assertion that @left is greater than @right. 1355 * @test: The test context object. 1356 * @left: an arbitrary expression that evaluates to a primitive C type. 1357 * @right: an arbitrary expression that evaluates to a primitive C type. 1358 * 1359 * Sets an assertion that the value that @left evaluates to is greater than the 1360 * value that @right evaluates to. This is the same as KUNIT_EXPECT_GT(), except 1361 * it causes an assertion failure (see KUNIT_ASSERT_TRUE()) when the assertion 1362 * is not met. 1363 */ 1364#define KUNIT_ASSERT_GT(test, left, right) \ 1365 KUNIT_ASSERT_GT_MSG(test, left, right, NULL) 1366 1367#define KUNIT_ASSERT_GT_MSG(test, left, right, fmt, ...) \ 1368 KUNIT_BINARY_INT_ASSERTION(test, \ 1369 KUNIT_ASSERTION, \ 1370 left, >, right, \ 1371 fmt, \ 1372 ##__VA_ARGS__) 1373 1374/** 1375 * KUNIT_ASSERT_GE() - Assertion that @left is greater than or equal to @right. 1376 * @test: The test context object. 1377 * @left: an arbitrary expression that evaluates to a primitive C type. 1378 * @right: an arbitrary expression that evaluates to a primitive C type. 1379 * 1380 * Sets an assertion that the value that @left evaluates to is greater than the 1381 * value that @right evaluates to. This is the same as KUNIT_EXPECT_GE(), except 1382 * it causes an assertion failure (see KUNIT_ASSERT_TRUE()) when the assertion 1383 * is not met. 1384 */ 1385#define KUNIT_ASSERT_GE(test, left, right) \ 1386 KUNIT_ASSERT_GE_MSG(test, left, right, NULL) 1387 1388#define KUNIT_ASSERT_GE_MSG(test, left, right, fmt, ...) \ 1389 KUNIT_BINARY_INT_ASSERTION(test, \ 1390 KUNIT_ASSERTION, \ 1391 left, >=, right, \ 1392 fmt, \ 1393 ##__VA_ARGS__) 1394 1395/** 1396 * KUNIT_ASSERT_STREQ() - An assertion that strings @left and @right are equal. 1397 * @test: The test context object. 1398 * @left: an arbitrary expression that evaluates to a null terminated string. 1399 * @right: an arbitrary expression that evaluates to a null terminated string. 1400 * 1401 * Sets an assertion that the values that @left and @right evaluate to are 1402 * equal. This is the same as KUNIT_EXPECT_STREQ(), except it causes an 1403 * assertion failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met. 1404 */ 1405#define KUNIT_ASSERT_STREQ(test, left, right) \ 1406 KUNIT_ASSERT_STREQ_MSG(test, left, right, NULL) 1407 1408#define KUNIT_ASSERT_STREQ_MSG(test, left, right, fmt, ...) \ 1409 KUNIT_BINARY_STR_ASSERTION(test, \ 1410 KUNIT_ASSERTION, \ 1411 left, ==, right, \ 1412 fmt, \ 1413 ##__VA_ARGS__) 1414 1415/** 1416 * KUNIT_ASSERT_STRNEQ() - Expects that strings @left and @right are not equal. 1417 * @test: The test context object. 1418 * @left: an arbitrary expression that evaluates to a null terminated string. 1419 * @right: an arbitrary expression that evaluates to a null terminated string. 1420 * 1421 * Sets an expectation that the values that @left and @right evaluate to are 1422 * not equal. This is semantically equivalent to 1423 * KUNIT_ASSERT_TRUE(@test, strcmp((@left), (@right))). See KUNIT_ASSERT_TRUE() 1424 * for more information. 1425 */ 1426#define KUNIT_ASSERT_STRNEQ(test, left, right) \ 1427 KUNIT_ASSERT_STRNEQ_MSG(test, left, right, NULL) 1428 1429#define KUNIT_ASSERT_STRNEQ_MSG(test, left, right, fmt, ...) \ 1430 KUNIT_BINARY_STR_ASSERTION(test, \ 1431 KUNIT_ASSERTION, \ 1432 left, !=, right, \ 1433 fmt, \ 1434 ##__VA_ARGS__) 1435 1436/** 1437 * KUNIT_ASSERT_NULL() - Asserts that pointers @ptr is null. 1438 * @test: The test context object. 1439 * @ptr: an arbitrary pointer. 1440 * 1441 * Sets an assertion that the values that @ptr evaluates to is null. This is 1442 * the same as KUNIT_EXPECT_NULL(), except it causes an assertion 1443 * failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met. 1444 */ 1445#define KUNIT_ASSERT_NULL(test, ptr) \ 1446 KUNIT_ASSERT_NULL_MSG(test, \ 1447 ptr, \ 1448 NULL) 1449 1450#define KUNIT_ASSERT_NULL_MSG(test, ptr, fmt, ...) \ 1451 KUNIT_BINARY_PTR_ASSERTION(test, \ 1452 KUNIT_ASSERTION, \ 1453 ptr, ==, NULL, \ 1454 fmt, \ 1455 ##__VA_ARGS__) 1456 1457/** 1458 * KUNIT_ASSERT_NOT_NULL() - Asserts that pointers @ptr is not null. 1459 * @test: The test context object. 1460 * @ptr: an arbitrary pointer. 1461 * 1462 * Sets an assertion that the values that @ptr evaluates to is not null. This 1463 * is the same as KUNIT_EXPECT_NOT_NULL(), except it causes an assertion 1464 * failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met. 1465 */ 1466#define KUNIT_ASSERT_NOT_NULL(test, ptr) \ 1467 KUNIT_ASSERT_NOT_NULL_MSG(test, \ 1468 ptr, \ 1469 NULL) 1470 1471#define KUNIT_ASSERT_NOT_NULL_MSG(test, ptr, fmt, ...) \ 1472 KUNIT_BINARY_PTR_ASSERTION(test, \ 1473 KUNIT_ASSERTION, \ 1474 ptr, !=, NULL, \ 1475 fmt, \ 1476 ##__VA_ARGS__) 1477 1478/** 1479 * KUNIT_ASSERT_NOT_ERR_OR_NULL() - Assertion that @ptr is not null and not err. 1480 * @test: The test context object. 1481 * @ptr: an arbitrary pointer. 1482 * 1483 * Sets an assertion that the value that @ptr evaluates to is not null and not 1484 * an errno stored in a pointer. This is the same as 1485 * KUNIT_EXPECT_NOT_ERR_OR_NULL(), except it causes an assertion failure (see 1486 * KUNIT_ASSERT_TRUE()) when the assertion is not met. 1487 */ 1488#define KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr) \ 1489 KUNIT_ASSERT_NOT_ERR_OR_NULL_MSG(test, ptr, NULL) 1490 1491#define KUNIT_ASSERT_NOT_ERR_OR_NULL_MSG(test, ptr, fmt, ...) \ 1492 KUNIT_PTR_NOT_ERR_OR_NULL_MSG_ASSERTION(test, \ 1493 KUNIT_ASSERTION, \ 1494 ptr, \ 1495 fmt, \ 1496 ##__VA_ARGS__) 1497 1498/** 1499 * KUNIT_ARRAY_PARAM() - Define test parameter generator from an array. 1500 * @name: prefix for the test parameter generator function. 1501 * @array: array of test parameters. 1502 * @get_desc: function to convert param to description; NULL to use default 1503 * 1504 * Define function @name_gen_params which uses @array to generate parameters. 1505 */ 1506#define KUNIT_ARRAY_PARAM(name, array, get_desc) \ 1507 static const void *name##_gen_params(const void *prev, char *desc) \ 1508 { \ 1509 typeof((array)[0]) *__next = prev ? ((typeof(__next)) prev) + 1 : (array); \ 1510 if (__next - (array) < ARRAY_SIZE((array))) { \ 1511 void (*__get_desc)(typeof(__next), char *) = get_desc; \ 1512 if (__get_desc) \ 1513 __get_desc(__next, desc); \ 1514 return __next; \ 1515 } \ 1516 return NULL; \ 1517 } 1518 1519// TODO(dlatypov@google.com): consider eventually migrating users to explicitly 1520// include resource.h themselves if they need it. 1521#include <kunit/resource.h> 1522 1523#endif /* _KUNIT_TEST_H */ 1524