include/kunit/test.h

   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 #include <linux/kernel.h>
  15 #include <linux/slab.h>
  16 #include <linux/types.h>
  17
  18 struct kunit_resource;
  19
  20 typedef int (*kunit_resource_init_t)(struct kunit_resource *, void *);
  21 typedef void (*kunit_resource_free_t)(struct kunit_resource *);
  22
  23 /**
  24  * struct kunit_resource - represents a *test managed resource*
  25  * @allocation: for the user to store arbitrary data.
  26  * @free: a user supplied function to free the resource. Populated by
  27  * kunit_alloc_resource().
  28  *
  29  * Represents a *test managed resource*, a resource which will automatically be
  30  * cleaned up at the end of a test case.
  31  *
  32  * Example:
  33  *
  34  * .. code-block:: c
  35  *
  36  *      struct kunit_kmalloc_params {
  37  *              size_t size;
  38  *              gfp_t gfp;
  39  *      };
  40  *
  41  *      static int kunit_kmalloc_init(struct kunit_resource *res, void *context)
  42  *      {
  43  *              struct kunit_kmalloc_params *params = context;
  44  *              res->allocation = kmalloc(params->size, params->gfp);
  45  *
  46  *              if (!res->allocation)
  47  *                      return -ENOMEM;
  48  *
  49  *              return 0;
  50  *      }
  51  *
  52  *      static void kunit_kmalloc_free(struct kunit_resource *res)
  53  *      {
  54  *              kfree(res->allocation);
  55  *      }
  56  *
  57  *      void *kunit_kmalloc(struct kunit *test, size_t size, gfp_t gfp)
  58  *      {
  59  *              struct kunit_kmalloc_params params;
  60  *              struct kunit_resource *res;
  61  *
  62  *              params.size = size;
  63  *              params.gfp = gfp;
  64  *
  65  *              res = kunit_alloc_resource(test, kunit_kmalloc_init,
  66  *                      kunit_kmalloc_free, &params);
  67  *              if (res)
  68  *                      return res->allocation;
  69  *
  70  *              return NULL;
  71  *      }
  72  */
  73 struct kunit_resource {
  74         void *allocation;
  75         kunit_resource_free_t free;
  76
  77         /* private: internal use only. */
  78         struct list_head node;
  79 };
  80
  81 struct kunit;
  82
  83 /**
  84  * struct kunit_case - represents an individual test case.
  85  *
  86  * @run_case: the function representing the actual test case.
  87  * @name:     the name of the test case.
  88  *
  89  * A test case is a function with the signature,
  90  * ``void (*)(struct kunit *)`` that makes expectations (see
  91  * KUNIT_EXPECT_TRUE()) about code under test. Each test case is associated
  92  * with a &struct kunit_suite and will be run after the suite's init
  93  * function and followed by the suite's exit function.
  94  *
  95  * A test case should be static and should only be created with the
  96  * KUNIT_CASE() macro; additionally, every array of test cases should be
  97  * terminated with an empty test case.
  98  *
  99  * Example:
 100  *
 101  * .. code-block:: c
 102  *
 103  *      void add_test_basic(struct kunit *test)
 104  *      {
 105  *              KUNIT_EXPECT_EQ(test, 1, add(1, 0));
 106  *              KUNIT_EXPECT_EQ(test, 2, add(1, 1));
 107  *              KUNIT_EXPECT_EQ(test, 0, add(-1, 1));
 108  *              KUNIT_EXPECT_EQ(test, INT_MAX, add(0, INT_MAX));
 109  *              KUNIT_EXPECT_EQ(test, -1, add(INT_MAX, INT_MIN));
 110  *      }
 111  *
 112  *      static struct kunit_case example_test_cases[] = {
 113  *              KUNIT_CASE(add_test_basic),
 114  *              {}
 115  *      };
 116  *
 117  */
 118 struct kunit_case {
 119         void (*run_case)(struct kunit *test);
 120         const char *name;
 121
 122         /* private: internal use only. */
 123         bool success;
 124 };
 125
 126 /**
 127  * KUNIT_CASE - A helper for creating a &struct kunit_case
 128  *
 129  * @test_name: a reference to a test case function.
 130  *
 131  * Takes a symbol for a function representing a test case and creates a
 132  * &struct kunit_case object from it. See the documentation for
 133  * &struct kunit_case for an example on how to use it.
 134  */
 135 #define KUNIT_CASE(test_name) { .run_case = test_name, .name = #test_name }
 136
 137 /**
 138  * struct kunit_suite - describes a related collection of &struct kunit_case
 139  *
 140  * @name:       the name of the test. Purely informational.
 141  * @init:       called before every test case.
 142  * @exit:       called after every test case.
 143  * @test_cases: a null terminated array of test cases.
 144  *
 145  * A kunit_suite is a collection of related &struct kunit_case s, such that
 146  * @init is called before every test case and @exit is called after every
 147  * test case, similar to the notion of a *test fixture* or a *test class*
 148  * in other unit testing frameworks like JUnit or Googletest.
 149  *
 150  * Every &struct kunit_case must be associated with a kunit_suite for KUnit
 151  * to run it.
 152  */
 153 struct kunit_suite {
 154         const char name[256];
 155         int (*init)(struct kunit *test);
 156         void (*exit)(struct kunit *test);
 157         struct kunit_case *test_cases;
 158 };
 159
 160 /**
 161  * struct kunit - represents a running instance of a test.
 162  *
 163  * @priv: for user to store arbitrary data. Commonly used to pass data
 164  *        created in the init function (see &struct kunit_suite).
 165  *
 166  * Used to store information about the current context under which the test
 167  * is running. Most of this data is private and should only be accessed
 168  * indirectly via public functions; the one exception is @priv which can be
 169  * used by the test writer to store arbitrary data.
 170  */
 171 struct kunit {
 172         void *priv;
 173
 174         /* private: internal use only. */
 175         const char *name; /* Read only after initialization! */
 176         struct kunit_try_catch try_catch;
 177         /*
 178          * success starts as true, and may only be set to false during a
 179          * test case; thus, it is safe to update this across multiple
 180          * threads using WRITE_ONCE; however, as a consequence, it may only
 181          * be read after the test case finishes once all threads associated
 182          * with the test case have terminated.
 183          */
 184         bool success; /* Read only after test_case finishes! */
 185         spinlock_t lock; /* Guards all mutable test state. */
 186         /*
 187          * Because resources is a list that may be updated multiple times (with
 188          * new resources) from any thread associated with a test case, we must
 189          * protect it with some type of lock.
 190          */
 191         struct list_head resources; /* Protected by lock. */
 192 };
 193
 194 void kunit_init_test(struct kunit *test, const char *name);
 195
 196 int kunit_run_tests(struct kunit_suite *suite);
 197
 198 /**
 199  * kunit_test_suite() - used to register a &struct kunit_suite with KUnit.
 200  *
 201  * @suite: a statically allocated &struct kunit_suite.
 202  *
 203  * Registers @suite with the test framework. See &struct kunit_suite for
 204  * more information.
 205  *
 206  * NOTE: Currently KUnit tests are all run as late_initcalls; this means
 207  * that they cannot test anything where tests must run at a different init
 208  * phase. One significant restriction resulting from this is that KUnit
 209  * cannot reliably test anything that is initialize in the late_init phase;
 210  * another is that KUnit is useless to test things that need to be run in
 211  * an earlier init phase.
 212  *
 213  * TODO(brendanhiggins@google.com): Don't run all KUnit tests as
 214  * late_initcalls.  I have some future work planned to dispatch all KUnit
 215  * tests from the same place, and at the very least to do so after
 216  * everything else is definitely initialized.
 217  */
 218 #define kunit_test_suite(suite)                                                \
 219         static int kunit_suite_init##suite(void)                               \
 220         {                                                                      \
 221                 return kunit_run_tests(&suite);                                \
 222         }                                                                      \
 223         late_initcall(kunit_suite_init##suite)
 224
 225 /*
 226  * Like kunit_alloc_resource() below, but returns the struct kunit_resource
 227  * object that contains the allocation. This is mostly for testing purposes.
 228  */
 229 struct kunit_resource *kunit_alloc_and_get_resource(struct kunit *test,
 230                                                     kunit_resource_init_t init,
 231                                                     kunit_resource_free_t free,
 232                                                     gfp_t internal_gfp,
 233                                                     void *context);
 234
 235 /**
 236  * kunit_alloc_resource() - Allocates a *test managed resource*.
 237  * @test: The test context object.
 238  * @init: a user supplied function to initialize the resource.
 239  * @free: a user supplied function to free the resource.
 240  * @internal_gfp: gfp to use for internal allocations, if unsure, use GFP_KERNEL
 241  * @context: for the user to pass in arbitrary data to the init function.
 242  *
 243  * Allocates a *test managed resource*, a resource which will automatically be
 244  * cleaned up at the end of a test case. See &struct kunit_resource for an
 245  * example.
 246  *
 247  * NOTE: KUnit needs to allocate memory for each kunit_resource object. You must
 248  * specify an @internal_gfp that is compatible with the use context of your
 249  * resource.
 250  */
 251 static inline void *kunit_alloc_resource(struct kunit *test,
 252                                          kunit_resource_init_t init,
 253                                          kunit_resource_free_t free,
 254                                          gfp_t internal_gfp,
 255                                          void *context)
 256 {
 257         struct kunit_resource *res;
 258
 259         res = kunit_alloc_and_get_resource(test, init, free, internal_gfp,
 260                                            context);
 261
 262         if (res)
 263                 return res->allocation;
 264
 265         return NULL;
 266 }
 267
 268 typedef bool (*kunit_resource_match_t)(struct kunit *test,
 269                                        const void *res,
 270                                        void *match_data);
 271
 272 /**
 273  * kunit_resource_instance_match() - Match a resource with the same instance.
 274  * @test: Test case to which the resource belongs.
 275  * @res: The data stored in kunit_resource->allocation.
 276  * @match_data: The resource pointer to match against.
 277  *
 278  * An instance of kunit_resource_match_t that matches a resource whose
 279  * allocation matches @match_data.
 280  */
 281 static inline bool kunit_resource_instance_match(struct kunit *test,
 282                                                  const void *res,
 283                                                  void *match_data)
 284 {
 285         return res == match_data;
 286 }
 287
 288 /**
 289  * kunit_resource_destroy() - Find a kunit_resource and destroy it.
 290  * @test: Test case to which the resource belongs.
 291  * @match: Match function. Returns whether a given resource matches @match_data.
 292  * @free: Must match free on the kunit_resource to free.
 293  * @match_data: Data passed into @match.
 294  *
 295  * Free the latest kunit_resource of @test for which @free matches the
 296  * kunit_resource_free_t associated with the resource and for which @match
 297  * returns true.
 298  *
 299  * RETURNS:
 300  * 0 if kunit_resource is found and freed, -ENOENT if not found.
 301  */
 302 int kunit_resource_destroy(struct kunit *test,
 303                            kunit_resource_match_t match,
 304                            kunit_resource_free_t free,
 305                            void *match_data);
 306
 307 /**
 308  * kunit_kmalloc() - Like kmalloc() except the allocation is *test managed*.
 309  * @test: The test context object.
 310  * @size: The size in bytes of the desired memory.
 311  * @gfp: flags passed to underlying kmalloc().
 312  *
 313  * Just like `kmalloc(...)`, except the allocation is managed by the test case
 314  * and is automatically cleaned up after the test case concludes. See &struct
 315  * kunit_resource for more information.
 316  */
 317 void *kunit_kmalloc(struct kunit *test, size_t size, gfp_t gfp);
 318
 319 /**
 320  * kunit_kfree() - Like kfree except for allocations managed by KUnit.
 321  * @test: The test case to which the resource belongs.
 322  * @ptr: The memory allocation to free.
 323  */
 324 void kunit_kfree(struct kunit *test, const void *ptr);
 325
 326 /**
 327  * kunit_kzalloc() - Just like kunit_kmalloc(), but zeroes the allocation.
 328  * @test: The test context object.
 329  * @size: The size in bytes of the desired memory.
 330  * @gfp: flags passed to underlying kmalloc().
 331  *
 332  * See kzalloc() and kunit_kmalloc() for more information.
 333  */
 334 static inline void *kunit_kzalloc(struct kunit *test, size_t size, gfp_t gfp)
 335 {
 336         return kunit_kmalloc(test, size, gfp | __GFP_ZERO);
 337 }
 338
 339 void kunit_cleanup(struct kunit *test);
 340
 341 void __printf(3, 4) kunit_printk(const char *level,
 342                                  const struct kunit *test,
 343                                  const char *fmt, ...);
 344
 345 /**
 346  * kunit_info() - Prints an INFO level message associated with @test.
 347  *
 348  * @test: The test context object.
 349  * @fmt:  A printk() style format string.
 350  *
 351  * Prints an info level message associated with the test suite being run.
 352  * Takes a variable number of format parameters just like printk().
 353  */
 354 #define kunit_info(test, fmt, ...) \
 355         kunit_printk(KERN_INFO, test, fmt, ##__VA_ARGS__)
 356
 357 /**
 358  * kunit_warn() - Prints a WARN level message associated with @test.
 359  *
 360  * @test: The test context object.
 361  * @fmt:  A printk() style format string.
 362  *
 363  * Prints a warning level message.
 364  */
 365 #define kunit_warn(test, fmt, ...) \
 366         kunit_printk(KERN_WARNING, test, fmt, ##__VA_ARGS__)
 367
 368 /**
 369  * kunit_err() - Prints an ERROR level message associated with @test.
 370  *
 371  * @test: The test context object.
 372  * @fmt:  A printk() style format string.
 373  *
 374  * Prints an error level message.
 375  */
 376 #define kunit_err(test, fmt, ...) \
 377         kunit_printk(KERN_ERR, test, fmt, ##__VA_ARGS__)
 378
 379 /**
 380  * KUNIT_SUCCEED() - A no-op expectation. Only exists for code clarity.
 381  * @test: The test context object.
 382  *
 383  * The opposite of KUNIT_FAIL(), it is an expectation that cannot fail. In other
 384  * words, it does nothing and only exists for code clarity. See
 385  * KUNIT_EXPECT_TRUE() for more information.
 386  */
 387 #define KUNIT_SUCCEED(test) do {} while (0)
 388
 389 void kunit_do_assertion(struct kunit *test,
 390                         struct kunit_assert *assert,
 391                         bool pass,
 392                         const char *fmt, ...);
 393
 394 #define KUNIT_ASSERTION(test, pass, assert_class, INITIALIZER, fmt, ...) do {  \
 395         struct assert_class __assertion = INITIALIZER;                         \
 396         kunit_do_assertion(test,                                               \
 397                            &__assertion.assert,                                \
 398                            pass,                                               \
 399                            fmt,                                                \
 400                            ##__VA_ARGS__);                                     \
 401 } while (0)
 402
 403
 404 #define KUNIT_FAIL_ASSERTION(test, assert_type, fmt, ...)                      \
 405         KUNIT_ASSERTION(test,                                                  \
 406                         false,                                                 \
 407                         kunit_fail_assert,                                     \
 408                         KUNIT_INIT_FAIL_ASSERT_STRUCT(test, assert_type),      \
 409                         fmt,                                                   \
 410                         ##__VA_ARGS__)
 411
 412 /**
 413  * KUNIT_FAIL() - Always causes a test to fail when evaluated.
 414  * @test: The test context object.
 415  * @fmt: an informational message to be printed when the assertion is made.
 416  * @...: string format arguments.
 417  *
 418  * The opposite of KUNIT_SUCCEED(), it is an expectation that always fails. In
 419  * other words, it always results in a failed expectation, and consequently
 420  * always causes the test case to fail when evaluated. See KUNIT_EXPECT_TRUE()
 421  * for more information.
 422  */
 423 #define KUNIT_FAIL(test, fmt, ...)                                             \
 424         KUNIT_FAIL_ASSERTION(test,                                             \
 425                              KUNIT_EXPECTATION,                                \
 426                              fmt,                                              \
 427                              ##__VA_ARGS__)
 428
 429 #define KUNIT_UNARY_ASSERTION(test,                                            \
 430                               assert_type,                                     \
 431                               condition,                                       \
 432                               expected_true,                                   \
 433                               fmt,                                             \
 434                               ...)                                             \
 435         KUNIT_ASSERTION(test,                                                  \
 436                         !!(condition) == !!expected_true,                      \
 437                         kunit_unary_assert,                                    \
 438                         KUNIT_INIT_UNARY_ASSERT_STRUCT(test,                   \
 439                                                        assert_type,            \
 440                                                        #condition,             \
 441                                                        expected_true),         \
 442                         fmt,                                                   \
 443                         ##__VA_ARGS__)
 444
 445 #define KUNIT_TRUE_MSG_ASSERTION(test, assert_type, condition, fmt, ...)       \
 446         KUNIT_UNARY_ASSERTION(test,                                            \
 447                               assert_type,                                     \
 448                               condition,                                       \
 449                               true,                                            \
 450                               fmt,                                             \
 451                               ##__VA_ARGS__)
 452
 453 #define KUNIT_TRUE_ASSERTION(test, assert_type, condition) \
 454         KUNIT_TRUE_MSG_ASSERTION(test, assert_type, condition, NULL)
 455
 456 #define KUNIT_FALSE_MSG_ASSERTION(test, assert_type, condition, fmt, ...)      \
 457         KUNIT_UNARY_ASSERTION(test,                                            \
 458                               assert_type,                                     \
 459                               condition,                                       \
 460                               false,                                           \
 461                               fmt,                                             \
 462                               ##__VA_ARGS__)
 463
 464 #define KUNIT_FALSE_ASSERTION(test, assert_type, condition) \
 465         KUNIT_FALSE_MSG_ASSERTION(test, assert_type, condition, NULL)
 466
 467 /*
 468  * A factory macro for defining the assertions and expectations for the basic
 469  * comparisons defined for the built in types.
 470  *
 471  * Unfortunately, there is no common type that all types can be promoted to for
 472  * which all the binary operators behave the same way as for the actual types
 473  * (for example, there is no type that long long and unsigned long long can
 474  * both be cast to where the comparison result is preserved for all values). So
 475  * the best we can do is do the comparison in the original types and then coerce
 476  * everything to long long for printing; this way, the comparison behaves
 477  * correctly and the printed out value usually makes sense without
 478  * interpretation, but can always be interpreted to figure out the actual
 479  * value.
 480  */
 481 #define KUNIT_BASE_BINARY_ASSERTION(test,                                      \
 482                                     assert_class,                              \
 483                                     ASSERT_CLASS_INIT,                         \
 484                                     assert_type,                               \
 485                                     left,                                      \
 486                                     op,                                        \
 487                                     right,                                     \
 488                                     fmt,                                       \
 489                                     ...)                                       \
 490 do {                                                                           \
 491         typeof(left) __left = (left);                                          \
 492         typeof(right) __right = (right);                                       \
 493         ((void)__typecheck(__left, __right));                                  \
 494                                                                                \
 495         KUNIT_ASSERTION(test,                                                  \
 496                         __left op __right,                                     \
 497                         assert_class,                                          \
 498                         ASSERT_CLASS_INIT(test,                                \
 499                                           assert_type,                         \
 500                                           #op,                                 \
 501                                           #left,                               \
 502                                           __left,                              \
 503                                           #right,                              \
 504                                           __right),                            \
 505                         fmt,                                                   \
 506                         ##__VA_ARGS__);                                        \
 507 } while (0)
 508
 509 #define KUNIT_BASE_EQ_MSG_ASSERTION(test,                                      \
 510                                     assert_class,                              \
 511                                     ASSERT_CLASS_INIT,                         \
 512                                     assert_type,                               \
 513                                     left,                                      \
 514                                     right,                                     \
 515                                     fmt,                                       \
 516                                     ...)                                       \
 517         KUNIT_BASE_BINARY_ASSERTION(test,                                      \
 518                                     assert_class,                              \
 519                                     ASSERT_CLASS_INIT,                         \
 520                                     assert_type,                               \
 521                                     left, ==, right,                           \
 522                                     fmt,                                       \
 523                                     ##__VA_ARGS__)
 524
 525 #define KUNIT_BASE_NE_MSG_ASSERTION(test,                                      \
 526                                     assert_class,                              \
 527                                     ASSERT_CLASS_INIT,                         \
 528                                     assert_type,                               \
 529                                     left,                                      \
 530                                     right,                                     \
 531                                     fmt,                                       \
 532                                     ...)                                       \
 533         KUNIT_BASE_BINARY_ASSERTION(test,                                      \
 534                                     assert_class,                              \
 535                                     ASSERT_CLASS_INIT,                         \
 536                                     assert_type,                               \
 537                                     left, !=, right,                           \
 538                                     fmt,                                       \
 539                                     ##__VA_ARGS__)
 540
 541 #define KUNIT_BASE_LT_MSG_ASSERTION(test,                                      \
 542                                     assert_class,                              \
 543                                     ASSERT_CLASS_INIT,                         \
 544                                     assert_type,                               \
 545                                     left,                                      \
 546                                     right,                                     \
 547                                     fmt,                                       \
 548                                     ...)                                       \
 549         KUNIT_BASE_BINARY_ASSERTION(test,                                      \
 550                                     assert_class,                              \
 551                                     ASSERT_CLASS_INIT,                         \
 552                                     assert_type,                               \
 553                                     left, <, right,                            \
 554                                     fmt,                                       \
 555                                     ##__VA_ARGS__)
 556
 557 #define KUNIT_BASE_LE_MSG_ASSERTION(test,                                      \
 558                                     assert_class,                              \
 559                                     ASSERT_CLASS_INIT,                         \
 560                                     assert_type,                               \
 561                                     left,                                      \
 562                                     right,                                     \
 563                                     fmt,                                       \
 564                                     ...)                                       \
 565         KUNIT_BASE_BINARY_ASSERTION(test,                                      \
 566                                     assert_class,                              \
 567                                     ASSERT_CLASS_INIT,                         \
 568                                     assert_type,                               \
 569                                     left, <=, right,                           \
 570                                     fmt,                                       \
 571                                     ##__VA_ARGS__)
 572
 573 #define KUNIT_BASE_GT_MSG_ASSERTION(test,                                      \
 574                                     assert_class,                              \
 575                                     ASSERT_CLASS_INIT,                         \
 576                                     assert_type,                               \
 577                                     left,                                      \
 578                                     right,                                     \
 579                                     fmt,                                       \
 580                                     ...)                                       \
 581         KUNIT_BASE_BINARY_ASSERTION(test,                                      \
 582                                     assert_class,                              \
 583                                     ASSERT_CLASS_INIT,                         \
 584                                     assert_type,                               \
 585                                     left, >, right,                            \
 586                                     fmt,                                       \
 587                                     ##__VA_ARGS__)
 588
 589 #define KUNIT_BASE_GE_MSG_ASSERTION(test,                                      \
 590                                     assert_class,                              \
 591                                     ASSERT_CLASS_INIT,                         \
 592                                     assert_type,                               \
 593                                     left,                                      \
 594                                     right,                                     \
 595                                     fmt,                                       \
 596                                     ...)                                       \
 597         KUNIT_BASE_BINARY_ASSERTION(test,                                      \
 598                                     assert_class,                              \
 599                                     ASSERT_CLASS_INIT,                         \
 600                                     assert_type,                               \
 601                                     left, >=, right,                           \
 602                                     fmt,                                       \
 603                                     ##__VA_ARGS__)
 604
 605 #define KUNIT_BINARY_EQ_MSG_ASSERTION(test, assert_type, left, right, fmt, ...)\
 606         KUNIT_BASE_EQ_MSG_ASSERTION(test,                                      \
 607                                     kunit_binary_assert,                       \
 608                                     KUNIT_INIT_BINARY_ASSERT_STRUCT,           \
 609                                     assert_type,                               \
 610                                     left,                                      \
 611                                     right,                                     \
 612                                     fmt,                                       \
 613                                     ##__VA_ARGS__)
 614
 615 #define KUNIT_BINARY_EQ_ASSERTION(test, assert_type, left, right)              \
 616         KUNIT_BINARY_EQ_MSG_ASSERTION(test,                                    \
 617                                       assert_type,                             \
 618                                       left,                                    \
 619                                       right,                                   \
 620                                       NULL)
 621
 622 #define KUNIT_BINARY_PTR_EQ_MSG_ASSERTION(test,                                \
 623                                           assert_type,                         \
 624                                           left,                                \
 625                                           right,                               \
 626                                           fmt,                                 \
 627                                           ...)                                 \
 628         KUNIT_BASE_EQ_MSG_ASSERTION(test,                                      \
 629                                     kunit_binary_ptr_assert,                   \
 630                                     KUNIT_INIT_BINARY_PTR_ASSERT_STRUCT,       \
 631                                     assert_type,                               \
 632                                     left,                                      \
 633                                     right,                                     \
 634                                     fmt,                                       \
 635                                     ##__VA_ARGS__)
 636
 637 #define KUNIT_BINARY_PTR_EQ_ASSERTION(test, assert_type, left, right)          \
 638         KUNIT_BINARY_PTR_EQ_MSG_ASSERTION(test,                                \
 639                                           assert_type,                         \
 640                                           left,                                \
 641                                           right,                               \
 642                                           NULL)
 643
 644 #define KUNIT_BINARY_NE_MSG_ASSERTION(test, assert_type, left, right, fmt, ...)\
 645         KUNIT_BASE_NE_MSG_ASSERTION(test,                                      \
 646                                     kunit_binary_assert,                       \
 647                                     KUNIT_INIT_BINARY_ASSERT_STRUCT,           \
 648                                     assert_type,                               \
 649                                     left,                                      \
 650                                     right,                                     \
 651                                     fmt,                                       \
 652                                     ##__VA_ARGS__)
 653
 654 #define KUNIT_BINARY_NE_ASSERTION(test, assert_type, left, right)              \
 655         KUNIT_BINARY_NE_MSG_ASSERTION(test,                                    \
 656                                       assert_type,                             \
 657                                       left,                                    \
 658                                       right,                                   \
 659                                       NULL)
 660
 661 #define KUNIT_BINARY_PTR_NE_MSG_ASSERTION(test,                                \
 662                                           assert_type,                         \
 663                                           left,                                \
 664                                           right,                               \
 665                                           fmt,                                 \
 666                                           ...)                                 \
 667         KUNIT_BASE_NE_MSG_ASSERTION(test,                                      \
 668                                     kunit_binary_ptr_assert,                   \
 669                                     KUNIT_INIT_BINARY_PTR_ASSERT_STRUCT,       \
 670                                     assert_type,                               \
 671                                     left,                                      \
 672                                     right,                                     \
 673                                     fmt,                                       \
 674                                     ##__VA_ARGS__)
 675
 676 #define KUNIT_BINARY_PTR_NE_ASSERTION(test, assert_type, left, right)          \
 677         KUNIT_BINARY_PTR_NE_MSG_ASSERTION(test,                                \
 678                                           assert_type,                         \
 679                                           left,                                \
 680                                           right,                               \
 681                                           NULL)
 682
 683 #define KUNIT_BINARY_LT_MSG_ASSERTION(test, assert_type, left, right, fmt, ...)\
 684         KUNIT_BASE_LT_MSG_ASSERTION(test,                                      \
 685                                     kunit_binary_assert,                       \
 686                                     KUNIT_INIT_BINARY_ASSERT_STRUCT,           \
 687                                     assert_type,                               \
 688                                     left,                                      \
 689                                     right,                                     \
 690                                     fmt,                                       \
 691                                     ##__VA_ARGS__)
 692
 693 #define KUNIT_BINARY_LT_ASSERTION(test, assert_type, left, right)              \
 694         KUNIT_BINARY_LT_MSG_ASSERTION(test,                                    \
 695                                       assert_type,                             \
 696                                       left,                                    \
 697                                       right,                                   \
 698                                       NULL)
 699
 700 #define KUNIT_BINARY_PTR_LT_MSG_ASSERTION(test,                                \
 701                                           assert_type,                         \
 702                                           left,                                \
 703                                           right,                               \
 704                                           fmt,                                 \
 705                                           ...)                                 \
 706         KUNIT_BASE_LT_MSG_ASSERTION(test,                                      \
 707                                     kunit_binary_ptr_assert,                   \
 708                                     KUNIT_INIT_BINARY_PTR_ASSERT_STRUCT,       \
 709                                     assert_type,                               \
 710                                     left,                                      \
 711                                     right,                                     \
 712                                     fmt,                                       \
 713                                     ##__VA_ARGS__)
 714
 715 #define KUNIT_BINARY_PTR_LT_ASSERTION(test, assert_type, left, right)          \
 716         KUNIT_BINARY_PTR_LT_MSG_ASSERTION(test,                                \
 717                                           assert_type,                         \
 718                                           left,                                \
 719                                           right,                               \
 720                                           NULL)
 721
 722 #define KUNIT_BINARY_LE_MSG_ASSERTION(test, assert_type, left, right, fmt, ...)\
 723         KUNIT_BASE_LE_MSG_ASSERTION(test,                                      \
 724                                     kunit_binary_assert,                       \
 725                                     KUNIT_INIT_BINARY_ASSERT_STRUCT,           \
 726                                     assert_type,                               \
 727                                     left,                                      \
 728                                     right,                                     \
 729                                     fmt,                                       \
 730                                     ##__VA_ARGS__)
 731
 732 #define KUNIT_BINARY_LE_ASSERTION(test, assert_type, left, right)              \
 733         KUNIT_BINARY_LE_MSG_ASSERTION(test,                                    \
 734                                       assert_type,                             \
 735                                       left,                                    \
 736                                       right,                                   \
 737                                       NULL)
 738
 739 #define KUNIT_BINARY_PTR_LE_MSG_ASSERTION(test,                                \
 740                                           assert_type,                         \
 741                                           left,                                \
 742                                           right,                               \
 743                                           fmt,                                 \
 744                                           ...)                                 \
 745         KUNIT_BASE_LE_MSG_ASSERTION(test,                                      \
 746                                     kunit_binary_ptr_assert,                   \
 747                                     KUNIT_INIT_BINARY_PTR_ASSERT_STRUCT,       \
 748                                     assert_type,                               \
 749                                     left,                                      \
 750                                     right,                                     \
 751                                     fmt,                                       \
 752                                     ##__VA_ARGS__)
 753
 754 #define KUNIT_BINARY_PTR_LE_ASSERTION(test, assert_type, left, right)          \
 755         KUNIT_BINARY_PTR_LE_MSG_ASSERTION(test,                                \
 756                                           assert_type,                         \
 757                                           left,                                \
 758                                           right,                               \
 759                                           NULL)
 760
 761 #define KUNIT_BINARY_GT_MSG_ASSERTION(test, assert_type, left, right, fmt, ...)\
 762         KUNIT_BASE_GT_MSG_ASSERTION(test,                                      \
 763                                     kunit_binary_assert,                       \
 764                                     KUNIT_INIT_BINARY_ASSERT_STRUCT,           \
 765                                     assert_type,                               \
 766                                     left,                                      \
 767                                     right,                                     \
 768                                     fmt,                                       \
 769                                     ##__VA_ARGS__)
 770
 771 #define KUNIT_BINARY_GT_ASSERTION(test, assert_type, left, right)              \
 772         KUNIT_BINARY_GT_MSG_ASSERTION(test,                                    \
 773                                       assert_type,                             \
 774                                       left,                                    \
 775                                       right,                                   \
 776                                       NULL)
 777
 778 #define KUNIT_BINARY_PTR_GT_MSG_ASSERTION(test,                                \
 779                                           assert_type,                         \
 780                                           left,                                \
 781                                           right,                               \
 782                                           fmt,                                 \
 783                                           ...)                                 \
 784         KUNIT_BASE_GT_MSG_ASSERTION(test,                                      \
 785                                     kunit_binary_ptr_assert,                   \
 786                                     KUNIT_INIT_BINARY_PTR_ASSERT_STRUCT,       \
 787                                     assert_type,                               \
 788                                     left,                                      \
 789                                     right,                                     \
 790                                     fmt,                                       \
 791                                     ##__VA_ARGS__)
 792
 793 #define KUNIT_BINARY_PTR_GT_ASSERTION(test, assert_type, left, right)          \
 794         KUNIT_BINARY_PTR_GT_MSG_ASSERTION(test,                                \
 795                                           assert_type,                         \
 796                                           left,                                \
 797                                           right,                               \
 798                                           NULL)
 799
 800 #define KUNIT_BINARY_GE_MSG_ASSERTION(test, assert_type, left, right, fmt, ...)\
 801         KUNIT_BASE_GE_MSG_ASSERTION(test,                                      \
 802                                     kunit_binary_assert,                       \
 803                                     KUNIT_INIT_BINARY_ASSERT_STRUCT,           \
 804                                     assert_type,                               \
 805                                     left,                                      \
 806                                     right,                                     \
 807                                     fmt,                                       \
 808                                     ##__VA_ARGS__)
 809
 810 #define KUNIT_BINARY_GE_ASSERTION(test, assert_type, left, right)              \
 811         KUNIT_BINARY_GE_MSG_ASSERTION(test,                                    \
 812                                       assert_type,                             \
 813                                       left,                                    \
 814                                       right,                                   \
 815                                       NULL)
 816
 817 #define KUNIT_BINARY_PTR_GE_MSG_ASSERTION(test,                                \
 818                                           assert_type,                         \
 819                                           left,                                \
 820                                           right,                               \
 821                                           fmt,                                 \
 822                                           ...)                                 \
 823         KUNIT_BASE_GE_MSG_ASSERTION(test,                                      \
 824                                     kunit_binary_ptr_assert,                   \
 825                                     KUNIT_INIT_BINARY_PTR_ASSERT_STRUCT,       \
 826                                     assert_type,                               \
 827                                     left,                                      \
 828                                     right,                                     \
 829                                     fmt,                                       \
 830                                     ##__VA_ARGS__)
 831
 832 #define KUNIT_BINARY_PTR_GE_ASSERTION(test, assert_type, left, right)          \
 833         KUNIT_BINARY_PTR_GE_MSG_ASSERTION(test,                                \
 834                                           assert_type,                         \
 835                                           left,                                \
 836                                           right,                               \
 837                                           NULL)
 838
 839 #define KUNIT_BINARY_STR_ASSERTION(test,                                       \
 840                                    assert_type,                                \
 841                                    left,                                       \
 842                                    op,                                         \
 843                                    right,                                      \
 844                                    fmt,                                        \
 845                                    ...)                                        \
 846 do {                                                                           \
 847         typeof(left) __left = (left);                                          \
 848         typeof(right) __right = (right);                                       \
 849                                                                                \
 850         KUNIT_ASSERTION(test,                                                  \
 851                         strcmp(__left, __right) op 0,                          \
 852                         kunit_binary_str_assert,                               \
 853                         KUNIT_INIT_BINARY_ASSERT_STRUCT(test,                  \
 854                                                         assert_type,           \
 855                                                         #op,                   \
 856                                                         #left,                 \
 857                                                         __left,                \
 858                                                         #right,                \
 859                                                         __right),              \
 860                         fmt,                                                   \
 861                         ##__VA_ARGS__);                                        \
 862 } while (0)
 863
 864 #define KUNIT_BINARY_STR_EQ_MSG_ASSERTION(test,                                \
 865                                           assert_type,                         \
 866                                           left,                                \
 867                                           right,                               \
 868                                           fmt,                                 \
 869                                           ...)                                 \
 870         KUNIT_BINARY_STR_ASSERTION(test,                                       \
 871                                    assert_type,                                \
 872                                    left, ==, right,                            \
 873                                    fmt,                                        \
 874                                    ##__VA_ARGS__)
 875
 876 #define KUNIT_BINARY_STR_EQ_ASSERTION(test, assert_type, left, right)          \
 877         KUNIT_BINARY_STR_EQ_MSG_ASSERTION(test,                                \
 878                                           assert_type,                         \
 879                                           left,                                \
 880                                           right,                               \
 881                                           NULL)
 882
 883 #define KUNIT_BINARY_STR_NE_MSG_ASSERTION(test,                                \
 884                                           assert_type,                         \
 885                                           left,                                \
 886                                           right,                               \
 887                                           fmt,                                 \
 888                                           ...)                                 \
 889         KUNIT_BINARY_STR_ASSERTION(test,                                       \
 890                                    assert_type,                                \
 891                                    left, !=, right,                            \
 892                                    fmt,                                        \
 893                                    ##__VA_ARGS__)
 894
 895 #define KUNIT_BINARY_STR_NE_ASSERTION(test, assert_type, left, right)          \
 896         KUNIT_BINARY_STR_NE_MSG_ASSERTION(test,                                \
 897                                           assert_type,                         \
 898                                           left,                                \
 899                                           right,                               \
 900                                           NULL)
 901
 902 #define KUNIT_PTR_NOT_ERR_OR_NULL_MSG_ASSERTION(test,                          \
 903                                                 assert_type,                   \
 904                                                 ptr,                           \
 905                                                 fmt,                           \
 906                                                 ...)                           \
 907 do {                                                                           \
 908         typeof(ptr) __ptr = (ptr);                                             \
 909                                                                                \
 910         KUNIT_ASSERTION(test,                                                  \
 911                         !IS_ERR_OR_NULL(__ptr),                                \
 912                         kunit_ptr_not_err_assert,                              \
 913                         KUNIT_INIT_PTR_NOT_ERR_STRUCT(test,                    \
 914                                                       assert_type,             \
 915                                                       #ptr,                    \
 916                                                       __ptr),                  \
 917                         fmt,                                                   \
 918                         ##__VA_ARGS__);                                        \
 919 } while (0)
 920
 921 #define KUNIT_PTR_NOT_ERR_OR_NULL_ASSERTION(test, assert_type, ptr)            \
 922         KUNIT_PTR_NOT_ERR_OR_NULL_MSG_ASSERTION(test,                          \
 923                                                 assert_type,                   \
 924                                                 ptr,                           \
 925                                                 NULL)
 926
 927 /**
 928  * KUNIT_EXPECT_TRUE() - Causes a test failure when the expression is not true.
 929  * @test: The test context object.
 930  * @condition: an arbitrary boolean expression. The test fails when this does
 931  * not evaluate to true.
 932  *
 933  * This and expectations of the form `KUNIT_EXPECT_*` will cause the test case
 934  * to fail when the specified condition is not met; however, it will not prevent
 935  * the test case from continuing to run; this is otherwise known as an
 936  * *expectation failure*.
 937  */
 938 #define KUNIT_EXPECT_TRUE(test, condition) \
 939         KUNIT_TRUE_ASSERTION(test, KUNIT_EXPECTATION, condition)
 940
 941 #define KUNIT_EXPECT_TRUE_MSG(test, condition, fmt, ...)                       \
 942         KUNIT_TRUE_MSG_ASSERTION(test,                                         \
 943                                  KUNIT_EXPECTATION,                            \
 944                                  condition,                                    \
 945                                  fmt,                                          \
 946                                  ##__VA_ARGS__)
 947
 948 /**
 949  * KUNIT_EXPECT_FALSE() - Makes a test failure when the expression is not false.
 950  * @test: The test context object.
 951  * @condition: an arbitrary boolean expression. The test fails when this does
 952  * not evaluate to false.
 953  *
 954  * Sets an expectation that @condition evaluates to false. See
 955  * KUNIT_EXPECT_TRUE() for more information.
 956  */
 957 #define KUNIT_EXPECT_FALSE(test, condition) \
 958         KUNIT_FALSE_ASSERTION(test, KUNIT_EXPECTATION, condition)
 959
 960 #define KUNIT_EXPECT_FALSE_MSG(test, condition, fmt, ...)                      \
 961         KUNIT_FALSE_MSG_ASSERTION(test,                                        \
 962                                   KUNIT_EXPECTATION,                           \
 963                                   condition,                                   \
 964                                   fmt,                                         \
 965                                   ##__VA_ARGS__)
 966
 967 /**
 968  * KUNIT_EXPECT_EQ() - Sets an expectation that @left and @right are equal.
 969  * @test: The test context object.
 970  * @left: an arbitrary expression that evaluates to a primitive C type.
 971  * @right: an arbitrary expression that evaluates to a primitive C type.
 972  *
 973  * Sets an expectation that the values that @left and @right evaluate to are
 974  * equal. This is semantically equivalent to
 975  * KUNIT_EXPECT_TRUE(@test, (@left) == (@right)). See KUNIT_EXPECT_TRUE() for
 976  * more information.
 977  */
 978 #define KUNIT_EXPECT_EQ(test, left, right) \
 979         KUNIT_BINARY_EQ_ASSERTION(test, KUNIT_EXPECTATION, left, right)
 980
 981 #define KUNIT_EXPECT_EQ_MSG(test, left, right, fmt, ...)                       \
 982         KUNIT_BINARY_EQ_MSG_ASSERTION(test,                                    \
 983                                       KUNIT_EXPECTATION,                       \
 984                                       left,                                    \
 985                                       right,                                   \
 986                                       fmt,                                     \
 987                                       ##__VA_ARGS__)
 988
 989 /**
 990  * KUNIT_EXPECT_PTR_EQ() - Expects that pointers @left and @right are equal.
 991  * @test: The test context object.
 992  * @left: an arbitrary expression that evaluates to a pointer.
 993  * @right: an arbitrary expression that evaluates to a pointer.
 994  *
 995  * Sets an expectation that the values that @left and @right evaluate to are
 996  * equal. 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_PTR_EQ(test, left, right)                                 \
1001         KUNIT_BINARY_PTR_EQ_ASSERTION(test,                                    \
1002                                       KUNIT_EXPECTATION,                       \
1003                                       left,                                    \
1004                                       right)
1005
1006 #define KUNIT_EXPECT_PTR_EQ_MSG(test, left, right, fmt, ...)                   \
1007         KUNIT_BINARY_PTR_EQ_MSG_ASSERTION(test,                                \
1008                                           KUNIT_EXPECTATION,                   \
1009                                           left,                                \
1010                                           right,                               \
1011                                           fmt,                                 \
1012                                           ##__VA_ARGS__)
1013
1014 /**
1015  * KUNIT_EXPECT_NE() - An expectation that @left and @right are not equal.
1016  * @test: The test context object.
1017  * @left: an arbitrary expression that evaluates to a primitive C type.
1018  * @right: an arbitrary expression that evaluates to a primitive C type.
1019  *
1020  * Sets an expectation that the values that @left and @right evaluate to are not
1021  * equal. This is semantically equivalent to
1022  * KUNIT_EXPECT_TRUE(@test, (@left) != (@right)). See KUNIT_EXPECT_TRUE() for
1023  * more information.
1024  */
1025 #define KUNIT_EXPECT_NE(test, left, right) \
1026         KUNIT_BINARY_NE_ASSERTION(test, KUNIT_EXPECTATION, left, right)
1027
1028 #define KUNIT_EXPECT_NE_MSG(test, left, right, fmt, ...)                       \
1029         KUNIT_BINARY_NE_MSG_ASSERTION(test,                                    \
1030                                       KUNIT_EXPECTATION,                       \
1031                                       left,                                    \
1032                                       right,                                   \
1033                                       fmt,                                     \
1034                                       ##__VA_ARGS__)
1035
1036 /**
1037  * KUNIT_EXPECT_PTR_NE() - Expects that pointers @left and @right are not equal.
1038  * @test: The test context object.
1039  * @left: an arbitrary expression that evaluates to a pointer.
1040  * @right: an arbitrary expression that evaluates to a pointer.
1041  *
1042  * Sets an expectation that the values that @left and @right evaluate to are not
1043  * equal. This is semantically equivalent to
1044  * KUNIT_EXPECT_TRUE(@test, (@left) != (@right)). See KUNIT_EXPECT_TRUE() for
1045  * more information.
1046  */
1047 #define KUNIT_EXPECT_PTR_NE(test, left, right)                                 \
1048         KUNIT_BINARY_PTR_NE_ASSERTION(test,                                    \
1049                                       KUNIT_EXPECTATION,                       \
1050                                       left,                                    \
1051                                       right)
1052
1053 #define KUNIT_EXPECT_PTR_NE_MSG(test, left, right, fmt, ...)                   \
1054         KUNIT_BINARY_PTR_NE_MSG_ASSERTION(test,                                \
1055                                           KUNIT_EXPECTATION,                   \
1056                                           left,                                \
1057                                           right,                               \
1058                                           fmt,                                 \
1059                                           ##__VA_ARGS__)
1060
1061 /**
1062  * KUNIT_EXPECT_LT() - An expectation that @left is less than @right.
1063  * @test: The test context object.
1064  * @left: an arbitrary expression that evaluates to a primitive C type.
1065  * @right: an arbitrary expression that evaluates to a primitive C type.
1066  *
1067  * Sets an expectation that the value that @left evaluates to is less than the
1068  * value that @right evaluates to. This is semantically equivalent to
1069  * KUNIT_EXPECT_TRUE(@test, (@left) < (@right)). See KUNIT_EXPECT_TRUE() for
1070  * more information.
1071  */
1072 #define KUNIT_EXPECT_LT(test, left, right) \
1073         KUNIT_BINARY_LT_ASSERTION(test, KUNIT_EXPECTATION, left, right)
1074
1075 #define KUNIT_EXPECT_LT_MSG(test, left, right, fmt, ...)                       \
1076         KUNIT_BINARY_LT_MSG_ASSERTION(test,                                    \
1077                                       KUNIT_EXPECTATION,                       \
1078                                       left,                                    \
1079                                       right,                                   \
1080                                       fmt,                                     \
1081                                       ##__VA_ARGS__)
1082
1083 /**
1084  * KUNIT_EXPECT_LE() - Expects that @left is less than or equal to @right.
1085  * @test: The test context object.
1086  * @left: an arbitrary expression that evaluates to a primitive C type.
1087  * @right: an arbitrary expression that evaluates to a primitive C type.
1088  *
1089  * Sets an expectation that the value that @left evaluates to is less than or
1090  * equal to the value that @right evaluates to. Semantically this is equivalent
1091  * to KUNIT_EXPECT_TRUE(@test, (@left) <= (@right)). See KUNIT_EXPECT_TRUE() for
1092  * more information.
1093  */
1094 #define KUNIT_EXPECT_LE(test, left, right) \
1095         KUNIT_BINARY_LE_ASSERTION(test, KUNIT_EXPECTATION, left, right)
1096
1097 #define KUNIT_EXPECT_LE_MSG(test, left, right, fmt, ...)                       \
1098         KUNIT_BINARY_LE_MSG_ASSERTION(test,                                    \
1099                                       KUNIT_EXPECTATION,                       \
1100                                       left,                                    \
1101                                       right,                                   \
1102                                       fmt,                                     \
1103                                       ##__VA_ARGS__)
1104
1105 /**
1106  * KUNIT_EXPECT_GT() - An expectation that @left is greater than @right.
1107  * @test: The test context object.
1108  * @left: an arbitrary expression that evaluates to a primitive C type.
1109  * @right: an arbitrary expression that evaluates to a primitive C type.
1110  *
1111  * Sets an expectation that the value that @left evaluates to is greater than
1112  * the value that @right evaluates to. This is semantically equivalent to
1113  * KUNIT_EXPECT_TRUE(@test, (@left) > (@right)). See KUNIT_EXPECT_TRUE() for
1114  * more information.
1115  */
1116 #define KUNIT_EXPECT_GT(test, left, right) \
1117         KUNIT_BINARY_GT_ASSERTION(test, KUNIT_EXPECTATION, left, right)
1118
1119 #define KUNIT_EXPECT_GT_MSG(test, left, right, fmt, ...)                       \
1120         KUNIT_BINARY_GT_MSG_ASSERTION(test,                                    \
1121                                       KUNIT_EXPECTATION,                       \
1122                                       left,                                    \
1123                                       right,                                   \
1124                                       fmt,                                     \
1125                                       ##__VA_ARGS__)
1126
1127 /**
1128  * KUNIT_EXPECT_GE() - Expects that @left is greater than or equal to @right.
1129  * @test: The test context object.
1130  * @left: an arbitrary expression that evaluates to a primitive C type.
1131  * @right: an arbitrary expression that evaluates to a primitive C type.
1132  *
1133  * Sets an expectation that the value that @left evaluates to is greater than
1134  * the value that @right evaluates to. This is semantically equivalent to
1135  * KUNIT_EXPECT_TRUE(@test, (@left) >= (@right)). See KUNIT_EXPECT_TRUE() for
1136  * more information.
1137  */
1138 #define KUNIT_EXPECT_GE(test, left, right) \
1139         KUNIT_BINARY_GE_ASSERTION(test, KUNIT_EXPECTATION, left, right)
1140
1141 #define KUNIT_EXPECT_GE_MSG(test, left, right, fmt, ...)                       \
1142         KUNIT_BINARY_GE_MSG_ASSERTION(test,                                    \
1143                                       KUNIT_EXPECTATION,                       \
1144                                       left,                                    \
1145                                       right,                                   \
1146                                       fmt,                                     \
1147                                       ##__VA_ARGS__)
1148
1149 /**
1150  * KUNIT_EXPECT_STREQ() - Expects that strings @left and @right are equal.
1151  * @test: The test context object.
1152  * @left: an arbitrary expression that evaluates to a null terminated string.
1153  * @right: an arbitrary expression that evaluates to a null terminated string.
1154  *
1155  * Sets an expectation that the values that @left and @right evaluate to are
1156  * equal. This is semantically equivalent to
1157  * KUNIT_EXPECT_TRUE(@test, !strcmp((@left), (@right))). See KUNIT_EXPECT_TRUE()
1158  * for more information.
1159  */
1160 #define KUNIT_EXPECT_STREQ(test, left, right) \
1161         KUNIT_BINARY_STR_EQ_ASSERTION(test, KUNIT_EXPECTATION, left, right)
1162
1163 #define KUNIT_EXPECT_STREQ_MSG(test, left, right, fmt, ...)                    \
1164         KUNIT_BINARY_STR_EQ_MSG_ASSERTION(test,                                \
1165                                           KUNIT_EXPECTATION,                   \
1166                                           left,                                \
1167                                           right,                               \
1168                                           fmt,                                 \
1169                                           ##__VA_ARGS__)
1170
1171 /**
1172  * KUNIT_EXPECT_STRNEQ() - Expects that strings @left and @right are not equal.
1173  * @test: The test context object.
1174  * @left: an arbitrary expression that evaluates to a null terminated string.
1175  * @right: an arbitrary expression that evaluates to a null terminated string.
1176  *
1177  * Sets an expectation that the values that @left and @right evaluate to are
1178  * not equal. This is semantically equivalent to
1179  * KUNIT_EXPECT_TRUE(@test, strcmp((@left), (@right))). See KUNIT_EXPECT_TRUE()
1180  * for more information.
1181  */
1182 #define KUNIT_EXPECT_STRNEQ(test, left, right) \
1183         KUNIT_BINARY_STR_NE_ASSERTION(test, KUNIT_EXPECTATION, left, right)
1184
1185 #define KUNIT_EXPECT_STRNEQ_MSG(test, left, right, fmt, ...)                   \
1186         KUNIT_BINARY_STR_NE_MSG_ASSERTION(test,                                \
1187                                           KUNIT_EXPECTATION,                   \
1188                                           left,                                \
1189                                           right,                               \
1190                                           fmt,                                 \
1191                                           ##__VA_ARGS__)
1192
1193 /**
1194  * KUNIT_EXPECT_NOT_ERR_OR_NULL() - Expects that @ptr is not null and not err.
1195  * @test: The test context object.
1196  * @ptr: an arbitrary pointer.
1197  *
1198  * Sets an expectation that the value that @ptr evaluates to is not null and not
1199  * an errno stored in a pointer. This is semantically equivalent to
1200  * KUNIT_EXPECT_TRUE(@test, !IS_ERR_OR_NULL(@ptr)). See KUNIT_EXPECT_TRUE() for
1201  * more information.
1202  */
1203 #define KUNIT_EXPECT_NOT_ERR_OR_NULL(test, ptr) \
1204         KUNIT_PTR_NOT_ERR_OR_NULL_ASSERTION(test, KUNIT_EXPECTATION, ptr)
1205
1206 #define KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, ptr, fmt, ...)                  \
1207         KUNIT_PTR_NOT_ERR_OR_NULL_MSG_ASSERTION(test,                          \
1208                                                 KUNIT_EXPECTATION,             \
1209                                                 ptr,                           \
1210                                                 fmt,                           \
1211                                                 ##__VA_ARGS__)
1212
1213 #endif /* _KUNIT_TEST_H */