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linux/include/kunit/test.h
David Gow 12cb32a52e kunit: Fix missing kerneldoc comment 
Add a missing kerneldoc comment for the 'test' test context parameter,
fixing the following warning:

include/kunit/test.h:492: warning: Function parameter or struct member 'test' not described in 'kunit_kfree_const'

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/lkml/20240827160631.67e121ed@canb.auug.org.au/
Fixes: f2c6dbd220 ("kunit: Device wrappers should also manage driver name")
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Kees Cook <kees@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-09-05 14:29:10 -06:00

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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Base unit test (KUnit) API.
*
* Copyright (C) 2019, Google LLC.
* Author: Brendan Higgins <brendanhiggins@google.com>
*/
#ifndef _KUNIT_TEST_H
#define _KUNIT_TEST_H
#include <kunit/assert.h>
#include <kunit/try-catch.h>
#include <linux/args.h>
#include <linux/compiler.h>
#include <linux/container_of.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/jump_label.h>
#include <linux/kconfig.h>
#include <linux/kref.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/string.h>
#include <linux/types.h>
#include <asm/rwonce.h>
#include <asm/sections.h>
/* Static key: true if any KUnit tests are currently running */
DECLARE_STATIC_KEY_FALSE(kunit_running);
struct kunit;
struct string_stream;
/* Maximum size of parameter description string. */
#define KUNIT_PARAM_DESC_SIZE 128
/* Maximum size of a status comment. */
#define KUNIT_STATUS_COMMENT_SIZE 256
/*
* TAP specifies subtest stream indentation of 4 spaces, 8 spaces for a
* sub-subtest. See the "Subtests" section in
* https://node-tap.org/tap-protocol/
*/
#define KUNIT_INDENT_LEN 4
#define KUNIT_SUBTEST_INDENT " "
#define KUNIT_SUBSUBTEST_INDENT " "
/**
* enum kunit_status - Type of result for a test or test suite
* @KUNIT_SUCCESS: Denotes the test suite has not failed nor been skipped
* @KUNIT_FAILURE: Denotes the test has failed.
* @KUNIT_SKIPPED: Denotes the test has been skipped.
*/
enum kunit_status {
KUNIT_SUCCESS,
KUNIT_FAILURE,
KUNIT_SKIPPED,
};
/* Attribute struct/enum definitions */
/*
* Speed Attribute is stored as an enum and separated into categories of
* speed: very_slowm, slow, and normal. These speeds are relative to
* other KUnit tests.
*
* Note: unset speed attribute acts as default of KUNIT_SPEED_NORMAL.
*/
enum kunit_speed {
KUNIT_SPEED_UNSET,
KUNIT_SPEED_VERY_SLOW,
KUNIT_SPEED_SLOW,
KUNIT_SPEED_NORMAL,
KUNIT_SPEED_MAX = KUNIT_SPEED_NORMAL,
};
/* Holds attributes for each test case and suite */
struct kunit_attributes {
enum kunit_speed speed;
};
/**
* struct kunit_case - represents an individual test case.
*
* @run_case: the function representing the actual test case.
* @name: the name of the test case.
* @generate_params: the generator function for parameterized tests.
* @attr: the attributes associated with the test
*
* A test case is a function with the signature,
* ``void (*)(struct kunit *)``
* that makes expectations and assertions (see KUNIT_EXPECT_TRUE() and
* KUNIT_ASSERT_TRUE()) about code under test. Each test case is associated
* with a &struct kunit_suite and will be run after the suite's init
* function and followed by the suite's exit function.
*
* A test case should be static and should only be created with the
* KUNIT_CASE() macro; additionally, every array of test cases should be
* terminated with an empty test case.
*
* Example:
*
* .. code-block:: c
*
* void add_test_basic(struct kunit *test)
* {
* KUNIT_EXPECT_EQ(test, 1, add(1, 0));
* KUNIT_EXPECT_EQ(test, 2, add(1, 1));
* KUNIT_EXPECT_EQ(test, 0, add(-1, 1));
* KUNIT_EXPECT_EQ(test, INT_MAX, add(0, INT_MAX));
* KUNIT_EXPECT_EQ(test, -1, add(INT_MAX, INT_MIN));
* }
*
* static struct kunit_case example_test_cases[] = {
* KUNIT_CASE(add_test_basic),
* {}
* };
*
*/
struct kunit_case {
void (*run_case)(struct kunit *test);
const char *name;
const void* (*generate_params)(const void *prev, char *desc);
struct kunit_attributes attr;
/* private: internal use only. */
enum kunit_status status;
char *module_name;
struct string_stream *log;
};
static inline char *kunit_status_to_ok_not_ok(enum kunit_status status)
{
switch (status) {
case KUNIT_SKIPPED:
case KUNIT_SUCCESS:
return "ok";
case KUNIT_FAILURE:
return "not ok";
}
return "invalid";
}
/**
* KUNIT_CASE - A helper for creating a &struct kunit_case
*
* @test_name: a reference to a test case function.
*
* Takes a symbol for a function representing a test case and creates a
* &struct kunit_case object from it. See the documentation for
* &struct kunit_case for an example on how to use it.
*/
#define KUNIT_CASE(test_name) \
{ .run_case = test_name, .name = #test_name, \
.module_name = KBUILD_MODNAME}
/**
* KUNIT_CASE_ATTR - A helper for creating a &struct kunit_case
* with attributes
*
* @test_name: a reference to a test case function.
* @attributes: a reference to a struct kunit_attributes object containing
* test attributes
*/
#define KUNIT_CASE_ATTR(test_name, attributes) \
{ .run_case = test_name, .name = #test_name, \
.attr = attributes, .module_name = KBUILD_MODNAME}
/**
* KUNIT_CASE_SLOW - A helper for creating a &struct kunit_case
* with the slow attribute
*
* @test_name: a reference to a test case function.
*/
#define KUNIT_CASE_SLOW(test_name) \
{ .run_case = test_name, .name = #test_name, \
.attr.speed = KUNIT_SPEED_SLOW, .module_name = KBUILD_MODNAME}
/**
* KUNIT_CASE_PARAM - A helper for creation a parameterized &struct kunit_case
*
* @test_name: a reference to a test case function.
* @gen_params: a reference to a parameter generator function.
*
* The generator function::
*
* const void* gen_params(const void *prev, char *desc)
*
* is used to lazily generate a series of arbitrarily typed values that fit into
* a void*. The argument @prev is the previously returned value, which should be
* used to derive the next value; @prev is set to NULL on the initial generator
* call. When no more values are available, the generator must return NULL.
* Optionally write a string into @desc (size of KUNIT_PARAM_DESC_SIZE)
* describing the parameter.
*/
#define KUNIT_CASE_PARAM(test_name, gen_params) \
{ .run_case = test_name, .name = #test_name, \
.generate_params = gen_params, .module_name = KBUILD_MODNAME}
/**
* KUNIT_CASE_PARAM_ATTR - A helper for creating a parameterized &struct
* kunit_case with attributes
*
* @test_name: a reference to a test case function.
* @gen_params: a reference to a parameter generator function.
* @attributes: a reference to a struct kunit_attributes object containing
* test attributes
*/
#define KUNIT_CASE_PARAM_ATTR(test_name, gen_params, attributes) \
{ .run_case = test_name, .name = #test_name, \
.generate_params = gen_params, \
.attr = attributes, .module_name = KBUILD_MODNAME}
/**
* struct kunit_suite - describes a related collection of &struct kunit_case
*
* @name: the name of the test. Purely informational.
* @suite_init: called once per test suite before the test cases.
* @suite_exit: called once per test suite after all test cases.
* @init: called before every test case.
* @exit: called after every test case.
* @test_cases: a null terminated array of test cases.
* @attr: the attributes associated with the test suite
*
* A kunit_suite is a collection of related &struct kunit_case s, such that
* @init is called before every test case and @exit is called after every
* test case, similar to the notion of a *test fixture* or a *test class*
* in other unit testing frameworks like JUnit or Googletest.
*
* Note that @exit and @suite_exit will run even if @init or @suite_init
* fail: make sure they can handle any inconsistent state which may result.
*
* Every &struct kunit_case must be associated with a kunit_suite for KUnit
* to run it.
*/
struct kunit_suite {
const char name[256];
int (*suite_init)(struct kunit_suite *suite);
void (*suite_exit)(struct kunit_suite *suite);
int (*init)(struct kunit *test);
void (*exit)(struct kunit *test);
struct kunit_case *test_cases;
struct kunit_attributes attr;
/* private: internal use only */
char status_comment[KUNIT_STATUS_COMMENT_SIZE];
struct dentry *debugfs;
struct string_stream *log;
int suite_init_err;
bool is_init;
};
/* Stores an array of suites, end points one past the end */
struct kunit_suite_set {
struct kunit_suite * const *start;
struct kunit_suite * const *end;
};
/**
* struct kunit - represents a running instance of a test.
*
* @priv: for user to store arbitrary data. Commonly used to pass data
* created in the init function (see &struct kunit_suite).
*
* Used to store information about the current context under which the test
* is running. Most of this data is private and should only be accessed
* indirectly via public functions; the one exception is @priv which can be
* used by the test writer to store arbitrary data.
*/
struct kunit {
void *priv;
/* private: internal use only. */
const char *name; /* Read only after initialization! */
struct string_stream *log; /* Points at case log after initialization */
struct kunit_try_catch try_catch;
/* param_value is the current parameter value for a test case. */
const void *param_value;
/* param_index stores the index of the parameter in parameterized tests. */
int param_index;
/*
* success starts as true, and may only be set to false during a
* test case; thus, it is safe to update this across multiple
* threads using WRITE_ONCE; however, as a consequence, it may only
* be read after the test case finishes once all threads associated
* with the test case have terminated.
*/
spinlock_t lock; /* Guards all mutable test state. */
enum kunit_status status; /* Read only after test_case finishes! */
/*
* Because resources is a list that may be updated multiple times (with
* new resources) from any thread associated with a test case, we must
* protect it with some type of lock.
*/
struct list_head resources; /* Protected by lock. */
char status_comment[KUNIT_STATUS_COMMENT_SIZE];
/* Saves the last seen test. Useful to help with faults. */
struct kunit_loc last_seen;
};
static inline void kunit_set_failure(struct kunit *test)
{
WRITE_ONCE(test->status, KUNIT_FAILURE);
}
bool kunit_enabled(void);
const char *kunit_action(void);
const char *kunit_filter_glob(void);
char *kunit_filter(void);
char *kunit_filter_action(void);
void kunit_init_test(struct kunit *test, const char *name, struct string_stream *log);
int kunit_run_tests(struct kunit_suite *suite);
size_t kunit_suite_num_test_cases(struct kunit_suite *suite);
unsigned int kunit_test_case_num(struct kunit_suite *suite,
struct kunit_case *test_case);
struct kunit_suite_set
kunit_filter_suites(const struct kunit_suite_set *suite_set,
const char *filter_glob,
char *filters,
char *filter_action,
int *err);
void kunit_free_suite_set(struct kunit_suite_set suite_set);
int __kunit_test_suites_init(struct kunit_suite * const * const suites, int num_suites);
void __kunit_test_suites_exit(struct kunit_suite **suites, int num_suites);
void kunit_exec_run_tests(struct kunit_suite_set *suite_set, bool builtin);
void kunit_exec_list_tests(struct kunit_suite_set *suite_set, bool include_attr);
struct kunit_suite_set kunit_merge_suite_sets(struct kunit_suite_set init_suite_set,
struct kunit_suite_set suite_set);
#if IS_BUILTIN(CONFIG_KUNIT)
int kunit_run_all_tests(void);
#else
static inline int kunit_run_all_tests(void)
{
return 0;
}
#endif /* IS_BUILTIN(CONFIG_KUNIT) */
#define __kunit_test_suites(unique_array, ...) \
static struct kunit_suite *unique_array[] \
__aligned(sizeof(struct kunit_suite *)) \
__used __section(".kunit_test_suites") = { __VA_ARGS__ }
/**
* kunit_test_suites() - used to register one or more &struct kunit_suite
* with KUnit.
*
* @__suites: a statically allocated list of &struct kunit_suite.
*
* Registers @suites with the test framework.
* This is done by placing the array of struct kunit_suite * in the
* .kunit_test_suites ELF section.
*
* When builtin, KUnit tests are all run via the executor at boot, and when
* built as a module, they run on module load.
*
*/
#define kunit_test_suites(__suites...) \
__kunit_test_suites(__UNIQUE_ID(array), \
##__suites)
#define kunit_test_suite(suite) kunit_test_suites(&suite)
#define __kunit_init_test_suites(unique_array, ...) \
static struct kunit_suite *unique_array[] \
__aligned(sizeof(struct kunit_suite *)) \
__used __section(".kunit_init_test_suites") = { __VA_ARGS__ }
/**
* kunit_test_init_section_suites() - used to register one or more &struct
* kunit_suite containing init functions or
* init data.
*
* @__suites: a statically allocated list of &struct kunit_suite.
*
* This functions similar to kunit_test_suites() except that it compiles the
* list of suites during init phase.
*
* This macro also suffixes the array and suite declarations it makes with
* _probe; so that modpost suppresses warnings about referencing init data
* for symbols named in this manner.
*
* Note: these init tests are not able to be run after boot so there is no
* "run" debugfs file generated for these tests.
*
* Also, do not mark the suite or test case structs with __initdata because
* they will be used after the init phase with debugfs.
*/
#define kunit_test_init_section_suites(__suites...) \
__kunit_init_test_suites(CONCATENATE(__UNIQUE_ID(array), _probe), \
##__suites)
#define kunit_test_init_section_suite(suite) \
kunit_test_init_section_suites(&suite)
#define kunit_suite_for_each_test_case(suite, test_case) \
for (test_case = suite->test_cases; test_case->run_case; test_case++)
enum kunit_status kunit_suite_has_succeeded(struct kunit_suite *suite);
/**
* kunit_kmalloc_array() - Like kmalloc_array() except the allocation is *test managed*.
* @test: The test context object.
* @n: number of elements.
* @size: The size in bytes of the desired memory.
* @gfp: flags passed to underlying kmalloc().
*
* Just like `kmalloc_array(...)`, except the allocation is managed by the test case
* and is automatically cleaned up after the test case concludes. See kunit_add_action()
* for more information.
*
* Note that some internal context data is also allocated with GFP_KERNEL,
* regardless of the gfp passed in.
*/
void *kunit_kmalloc_array(struct kunit *test, size_t n, size_t size, gfp_t gfp);
/**
* kunit_kmalloc() - Like kmalloc() except the allocation is *test managed*.
* @test: The test context object.
* @size: The size in bytes of the desired memory.
* @gfp: flags passed to underlying kmalloc().
*
* See kmalloc() and kunit_kmalloc_array() for more information.
*
* Note that some internal context data is also allocated with GFP_KERNEL,
* regardless of the gfp passed in.
*/
static inline void *kunit_kmalloc(struct kunit *test, size_t size, gfp_t gfp)
{
return kunit_kmalloc_array(test, 1, size, gfp);
}
/**
* kunit_kfree() - Like kfree except for allocations managed by KUnit.
* @test: The test case to which the resource belongs.
* @ptr: The memory allocation to free.
*/
void kunit_kfree(struct kunit *test, const void *ptr);
/**
* kunit_kzalloc() - Just like kunit_kmalloc(), but zeroes the allocation.
* @test: The test context object.
* @size: The size in bytes of the desired memory.
* @gfp: flags passed to underlying kmalloc().
*
* See kzalloc() and kunit_kmalloc_array() for more information.
*/
static inline void *kunit_kzalloc(struct kunit *test, size_t size, gfp_t gfp)
{
return kunit_kmalloc(test, size, gfp | __GFP_ZERO);
}
/**
* kunit_kcalloc() - Just like kunit_kmalloc_array(), but zeroes the allocation.
* @test: The test context object.
* @n: number of elements.
* @size: The size in bytes of the desired memory.
* @gfp: flags passed to underlying kmalloc().
*
* See kcalloc() and kunit_kmalloc_array() for more information.
*/
static inline void *kunit_kcalloc(struct kunit *test, size_t n, size_t size, gfp_t gfp)
{
return kunit_kmalloc_array(test, n, size, gfp | __GFP_ZERO);
}
/**
* kunit_kfree_const() - conditionally free test managed memory
* @test: The test context object.
* @x: pointer to the memory
*
* Calls kunit_kfree() only if @x is not in .rodata section.
* See kunit_kstrdup_const() for more information.
*/
void kunit_kfree_const(struct kunit *test, const void *x);
/**
* kunit_kstrdup() - Duplicates a string into a test managed allocation.
*
* @test: The test context object.
* @str: The NULL-terminated string to duplicate.
* @gfp: flags passed to underlying kmalloc().
*
* See kstrdup() and kunit_kmalloc_array() for more information.
*/
static inline char *kunit_kstrdup(struct kunit *test, const char *str, gfp_t gfp)
{
size_t len;
char *buf;
if (!str)
return NULL;
len = strlen(str) + 1;
buf = kunit_kmalloc(test, len, gfp);
if (buf)
memcpy(buf, str, len);
return buf;
}
/**
* kunit_kstrdup_const() - Conditionally duplicates a string into a test managed allocation.
*
* @test: The test context object.
* @str: The NULL-terminated string to duplicate.
* @gfp: flags passed to underlying kmalloc().
*
* Calls kunit_kstrdup() only if @str is not in the rodata section. Must be freed with
* kunit_kfree_const() -- not kunit_kfree().
* See kstrdup_const() and kunit_kmalloc_array() for more information.
*/
const char *kunit_kstrdup_const(struct kunit *test, const char *str, gfp_t gfp);
/**
* kunit_vm_mmap() - Allocate KUnit-tracked vm_mmap() area
* @test: The test context object.
* @file: struct file pointer to map from, if any
* @addr: desired address, if any
* @len: how many bytes to allocate
* @prot: mmap PROT_* bits
* @flag: mmap flags
* @offset: offset into @file to start mapping from.
*
* See vm_mmap() for more information.
*/
unsigned long kunit_vm_mmap(struct kunit *test, struct file *file,
unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flag,
unsigned long offset);
void kunit_cleanup(struct kunit *test);
void __printf(2, 3) kunit_log_append(struct string_stream *log, const char *fmt, ...);
/**
* kunit_mark_skipped() - Marks @test_or_suite as skipped
*
* @test_or_suite: The test context object.
* @fmt: A printk() style format string.
*
* Marks the test as skipped. @fmt is given output as the test status
* comment, typically the reason the test was skipped.
*
* Test execution continues after kunit_mark_skipped() is called.
*/
#define kunit_mark_skipped(test_or_suite, fmt, ...) \
do { \
WRITE_ONCE((test_or_suite)->status, KUNIT_SKIPPED); \
scnprintf((test_or_suite)->status_comment, \
KUNIT_STATUS_COMMENT_SIZE, \
fmt, ##__VA_ARGS__); \
} while (0)
/**
* kunit_skip() - Marks @test_or_suite as skipped
*
* @test_or_suite: The test context object.
* @fmt: A printk() style format string.
*
* Skips the test. @fmt is given output as the test status
* comment, typically the reason the test was skipped.
*
* Test execution is halted after kunit_skip() is called.
*/
#define kunit_skip(test_or_suite, fmt, ...) \
do { \
kunit_mark_skipped((test_or_suite), fmt, ##__VA_ARGS__);\
kunit_try_catch_throw(&((test_or_suite)->try_catch)); \
} while (0)
/*
* printk and log to per-test or per-suite log buffer. Logging only done
* if CONFIG_KUNIT_DEBUGFS is 'y'; if it is 'n', no log is allocated/used.
*/
#define kunit_log(lvl, test_or_suite, fmt, ...) \
do { \
printk(lvl fmt, ##__VA_ARGS__); \
kunit_log_append((test_or_suite)->log, fmt, \
##__VA_ARGS__); \
} while (0)
#define kunit_printk(lvl, test, fmt, ...) \
kunit_log(lvl, test, KUNIT_SUBTEST_INDENT "# %s: " fmt, \
(test)->name, ##__VA_ARGS__)
/**
* kunit_info() - Prints an INFO level message associated with @test.
*
* @test: The test context object.
* @fmt: A printk() style format string.
*
* Prints an info level message associated with the test suite being run.
* Takes a variable number of format parameters just like printk().
*/
#define kunit_info(test, fmt, ...) \
kunit_printk(KERN_INFO, test, fmt, ##__VA_ARGS__)
/**
* kunit_warn() - Prints a WARN level message associated with @test.
*
* @test: The test context object.
* @fmt: A printk() style format string.
*
* Prints a warning level message.
*/
#define kunit_warn(test, fmt, ...) \
kunit_printk(KERN_WARNING, test, fmt, ##__VA_ARGS__)
/**
* kunit_err() - Prints an ERROR level message associated with @test.
*
* @test: The test context object.
* @fmt: A printk() style format string.
*
* Prints an error level message.
*/
#define kunit_err(test, fmt, ...) \
kunit_printk(KERN_ERR, test, fmt, ##__VA_ARGS__)
/*
* Must be called at the beginning of each KUNIT_*_ASSERTION().
* Cf. KUNIT_CURRENT_LOC.
*/
#define _KUNIT_SAVE_LOC(test) do { \
WRITE_ONCE(test->last_seen.file, __FILE__); \
WRITE_ONCE(test->last_seen.line, __LINE__); \
} while (0)
/**
* KUNIT_SUCCEED() - A no-op expectation. Only exists for code clarity.
* @test: The test context object.
*
* The opposite of KUNIT_FAIL(), it is an expectation that cannot fail. In other
* words, it does nothing and only exists for code clarity. See
* KUNIT_EXPECT_TRUE() for more information.
*/
#define KUNIT_SUCCEED(test) _KUNIT_SAVE_LOC(test)
void __noreturn __kunit_abort(struct kunit *test);
void __printf(6, 7) __kunit_do_failed_assertion(struct kunit *test,
const struct kunit_loc *loc,
enum kunit_assert_type type,
const struct kunit_assert *assert,
assert_format_t assert_format,
const char *fmt, ...);
#define _KUNIT_FAILED(test, assert_type, assert_class, assert_format, INITIALIZER, fmt, ...) do { \
static const struct kunit_loc __loc = KUNIT_CURRENT_LOC; \
const struct assert_class __assertion = INITIALIZER; \
__kunit_do_failed_assertion(test, \
&__loc, \
assert_type, \
&__assertion.assert, \
assert_format, \
fmt, \
##__VA_ARGS__); \
if (assert_type == KUNIT_ASSERTION) \
__kunit_abort(test); \
} while (0)
#define KUNIT_FAIL_ASSERTION(test, assert_type, fmt, ...) do { \
_KUNIT_SAVE_LOC(test); \
_KUNIT_FAILED(test, \
assert_type, \
kunit_fail_assert, \
kunit_fail_assert_format, \
{}, \
fmt, \
##__VA_ARGS__); \
} while (0)
/**
* KUNIT_FAIL() - Always causes a test to fail when evaluated.
* @test: The test context object.
* @fmt: an informational message to be printed when the assertion is made.
* @...: string format arguments.
*
* The opposite of KUNIT_SUCCEED(), it is an expectation that always fails. In
* other words, it always results in a failed expectation, and consequently
* always causes the test case to fail when evaluated. See KUNIT_EXPECT_TRUE()
* for more information.
*/
#define KUNIT_FAIL(test, fmt, ...) \
KUNIT_FAIL_ASSERTION(test, \
KUNIT_EXPECTATION, \
fmt, \
##__VA_ARGS__)
/* Helper to safely pass around an initializer list to other macros. */
#define KUNIT_INIT_ASSERT(initializers...) { initializers }
#define KUNIT_UNARY_ASSERTION(test, \
assert_type, \
condition_, \
expected_true_, \
fmt, \
...) \
do { \
_KUNIT_SAVE_LOC(test); \
if (likely(!!(condition_) == !!expected_true_)) \
break; \
\
_KUNIT_FAILED(test, \
assert_type, \
kunit_unary_assert, \
kunit_unary_assert_format, \
KUNIT_INIT_ASSERT(.condition = #condition_, \
.expected_true = expected_true_), \
fmt, \
##__VA_ARGS__); \
} while (0)
#define KUNIT_TRUE_MSG_ASSERTION(test, assert_type, condition, fmt, ...) \
KUNIT_UNARY_ASSERTION(test, \
assert_type, \
condition, \
true, \
fmt, \
##__VA_ARGS__)
#define KUNIT_FALSE_MSG_ASSERTION(test, assert_type, condition, fmt, ...) \
KUNIT_UNARY_ASSERTION(test, \
assert_type, \
condition, \
false, \
fmt, \
##__VA_ARGS__)
/*
* A factory macro for defining the assertions and expectations for the basic
* comparisons defined for the built in types.
*
* Unfortunately, there is no common type that all types can be promoted to for
* which all the binary operators behave the same way as for the actual types
* (for example, there is no type that long long and unsigned long long can
* both be cast to where the comparison result is preserved for all values). So
* the best we can do is do the comparison in the original types and then coerce
* everything to long long for printing; this way, the comparison behaves
* correctly and the printed out value usually makes sense without
* interpretation, but can always be interpreted to figure out the actual
* value.
*/
#define KUNIT_BASE_BINARY_ASSERTION(test, \
assert_class, \
format_func, \
assert_type, \
left, \
op, \
right, \
fmt, \
...) \
do { \
const typeof(left) __left = (left); \
const typeof(right) __right = (right); \
static const struct kunit_binary_assert_text __text = { \
.operation = #op, \
.left_text = #left, \
.right_text = #right, \
}; \
\
_KUNIT_SAVE_LOC(test); \
if (likely(__left op __right)) \
break; \
\
_KUNIT_FAILED(test, \
assert_type, \
assert_class, \
format_func, \
KUNIT_INIT_ASSERT(.text = &__text, \
.left_value = __left, \
.right_value = __right), \
fmt, \
##__VA_ARGS__); \
} while (0)
#define KUNIT_BINARY_INT_ASSERTION(test, \
assert_type, \
left, \
op, \
right, \
fmt, \
...) \
KUNIT_BASE_BINARY_ASSERTION(test, \
kunit_binary_assert, \
kunit_binary_assert_format, \
assert_type, \
left, op, right, \
fmt, \
##__VA_ARGS__)
#define KUNIT_BINARY_PTR_ASSERTION(test, \
assert_type, \
left, \
op, \
right, \
fmt, \
...) \
KUNIT_BASE_BINARY_ASSERTION(test, \
kunit_binary_ptr_assert, \
kunit_binary_ptr_assert_format, \
assert_type, \
left, op, right, \
fmt, \
##__VA_ARGS__)
#define KUNIT_BINARY_STR_ASSERTION(test, \
assert_type, \
left, \
op, \
right, \
fmt, \
...) \
do { \
const char *__left = (left); \
const char *__right = (right); \
static const struct kunit_binary_assert_text __text = { \
.operation = #op, \
.left_text = #left, \
.right_text = #right, \
}; \
\
_KUNIT_SAVE_LOC(test); \
if (likely((__left) && (__right) && (strcmp(__left, __right) op 0))) \
break; \
\
\
_KUNIT_FAILED(test, \
assert_type, \
kunit_binary_str_assert, \
kunit_binary_str_assert_format, \
KUNIT_INIT_ASSERT(.text = &__text, \
.left_value = __left, \
.right_value = __right), \
fmt, \
##__VA_ARGS__); \
} while (0)
#define KUNIT_MEM_ASSERTION(test, \
assert_type, \
left, \
op, \
right, \
size_, \
fmt, \
...) \
do { \
const void *__left = (left); \
const void *__right = (right); \
const size_t __size = (size_); \
static const struct kunit_binary_assert_text __text = { \
.operation = #op, \
.left_text = #left, \
.right_text = #right, \
}; \
\
_KUNIT_SAVE_LOC(test); \
if (likely(__left && __right)) \
if (likely(memcmp(__left, __right, __size) op 0)) \
break; \
\
_KUNIT_FAILED(test, \
assert_type, \
kunit_mem_assert, \
kunit_mem_assert_format, \
KUNIT_INIT_ASSERT(.text = &__text, \
.left_value = __left, \
.right_value = __right, \
.size = __size), \
fmt, \
##__VA_ARGS__); \
} while (0)
#define KUNIT_PTR_NOT_ERR_OR_NULL_MSG_ASSERTION(test, \
assert_type, \
ptr, \
fmt, \
...) \
do { \
const typeof(ptr) __ptr = (ptr); \
\
_KUNIT_SAVE_LOC(test); \
if (!IS_ERR_OR_NULL(__ptr)) \
break; \
\
_KUNIT_FAILED(test, \
assert_type, \
kunit_ptr_not_err_assert, \
kunit_ptr_not_err_assert_format, \
KUNIT_INIT_ASSERT(.text = #ptr, .value = __ptr), \
fmt, \
##__VA_ARGS__); \
} while (0)
/**
* KUNIT_EXPECT_TRUE() - Causes a test failure when the expression is not true.
* @test: The test context object.
* @condition: an arbitrary boolean expression. The test fails when this does
* not evaluate to true.
*
* This and expectations of the form `KUNIT_EXPECT_*` will cause the test case
* to fail when the specified condition is not met; however, it will not prevent
* the test case from continuing to run; this is otherwise known as an
* *expectation failure*.
*/
#define KUNIT_EXPECT_TRUE(test, condition) \
KUNIT_EXPECT_TRUE_MSG(test, condition, NULL)
#define KUNIT_EXPECT_TRUE_MSG(test, condition, fmt, ...) \
KUNIT_TRUE_MSG_ASSERTION(test, \
KUNIT_EXPECTATION, \
condition, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_EXPECT_FALSE() - Makes a test failure when the expression is not false.
* @test: The test context object.
* @condition: an arbitrary boolean expression. The test fails when this does
* not evaluate to false.
*
* Sets an expectation that @condition evaluates to false. See
* KUNIT_EXPECT_TRUE() for more information.
*/
#define KUNIT_EXPECT_FALSE(test, condition) \
KUNIT_EXPECT_FALSE_MSG(test, condition, NULL)
#define KUNIT_EXPECT_FALSE_MSG(test, condition, fmt, ...) \
KUNIT_FALSE_MSG_ASSERTION(test, \
KUNIT_EXPECTATION, \
condition, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_EXPECT_EQ() - Sets an expectation that @left and @right are equal.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a primitive C type.
* @right: an arbitrary expression that evaluates to a primitive C type.
*
* Sets an expectation that the values that @left and @right evaluate to are
* equal. This is semantically equivalent to
* KUNIT_EXPECT_TRUE(@test, (@left) == (@right)). See KUNIT_EXPECT_TRUE() for
* more information.
*/
#define KUNIT_EXPECT_EQ(test, left, right) \
KUNIT_EXPECT_EQ_MSG(test, left, right, NULL)
#define KUNIT_EXPECT_EQ_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_INT_ASSERTION(test, \
KUNIT_EXPECTATION, \
left, ==, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_EXPECT_PTR_EQ() - Expects that pointers @left and @right are equal.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a pointer.
* @right: an arbitrary expression that evaluates to a pointer.
*
* Sets an expectation that the values that @left and @right evaluate to are
* equal. This is semantically equivalent to
* KUNIT_EXPECT_TRUE(@test, (@left) == (@right)). See KUNIT_EXPECT_TRUE() for
* more information.
*/
#define KUNIT_EXPECT_PTR_EQ(test, left, right) \
KUNIT_EXPECT_PTR_EQ_MSG(test, left, right, NULL)
#define KUNIT_EXPECT_PTR_EQ_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_PTR_ASSERTION(test, \
KUNIT_EXPECTATION, \
left, ==, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_EXPECT_NE() - An expectation that @left and @right are not equal.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a primitive C type.
* @right: an arbitrary expression that evaluates to a primitive C type.
*
* Sets an expectation that the values that @left and @right evaluate to are not
* equal. This is semantically equivalent to
* KUNIT_EXPECT_TRUE(@test, (@left) != (@right)). See KUNIT_EXPECT_TRUE() for
* more information.
*/
#define KUNIT_EXPECT_NE(test, left, right) \
KUNIT_EXPECT_NE_MSG(test, left, right, NULL)
#define KUNIT_EXPECT_NE_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_INT_ASSERTION(test, \
KUNIT_EXPECTATION, \
left, !=, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_EXPECT_PTR_NE() - Expects that pointers @left and @right are not equal.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a pointer.
* @right: an arbitrary expression that evaluates to a pointer.
*
* Sets an expectation that the values that @left and @right evaluate to are not
* equal. This is semantically equivalent to
* KUNIT_EXPECT_TRUE(@test, (@left) != (@right)). See KUNIT_EXPECT_TRUE() for
* more information.
*/
#define KUNIT_EXPECT_PTR_NE(test, left, right) \
KUNIT_EXPECT_PTR_NE_MSG(test, left, right, NULL)
#define KUNIT_EXPECT_PTR_NE_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_PTR_ASSERTION(test, \
KUNIT_EXPECTATION, \
left, !=, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_EXPECT_LT() - An expectation that @left is less than @right.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a primitive C type.
* @right: an arbitrary expression that evaluates to a primitive C type.
*
* Sets an expectation that the value that @left evaluates to is less than the
* value that @right evaluates to. This is semantically equivalent to
* KUNIT_EXPECT_TRUE(@test, (@left) < (@right)). See KUNIT_EXPECT_TRUE() for
* more information.
*/
#define KUNIT_EXPECT_LT(test, left, right) \
KUNIT_EXPECT_LT_MSG(test, left, right, NULL)
#define KUNIT_EXPECT_LT_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_INT_ASSERTION(test, \
KUNIT_EXPECTATION, \
left, <, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_EXPECT_LE() - Expects that @left is less than or equal to @right.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a primitive C type.
* @right: an arbitrary expression that evaluates to a primitive C type.
*
* Sets an expectation that the value that @left evaluates to is less than or
* equal to the value that @right evaluates to. Semantically this is equivalent
* to KUNIT_EXPECT_TRUE(@test, (@left) <= (@right)). See KUNIT_EXPECT_TRUE() for
* more information.
*/
#define KUNIT_EXPECT_LE(test, left, right) \
KUNIT_EXPECT_LE_MSG(test, left, right, NULL)
#define KUNIT_EXPECT_LE_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_INT_ASSERTION(test, \
KUNIT_EXPECTATION, \
left, <=, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_EXPECT_GT() - An expectation that @left is greater than @right.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a primitive C type.
* @right: an arbitrary expression that evaluates to a primitive C type.
*
* Sets an expectation that the value that @left evaluates to is greater than
* the value that @right evaluates to. This is semantically equivalent to
* KUNIT_EXPECT_TRUE(@test, (@left) > (@right)). See KUNIT_EXPECT_TRUE() for
* more information.
*/
#define KUNIT_EXPECT_GT(test, left, right) \
KUNIT_EXPECT_GT_MSG(test, left, right, NULL)
#define KUNIT_EXPECT_GT_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_INT_ASSERTION(test, \
KUNIT_EXPECTATION, \
left, >, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_EXPECT_GE() - Expects that @left is greater than or equal to @right.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a primitive C type.
* @right: an arbitrary expression that evaluates to a primitive C type.
*
* Sets an expectation that the value that @left evaluates to is greater than
* the value that @right evaluates to. This is semantically equivalent to
* KUNIT_EXPECT_TRUE(@test, (@left) >= (@right)). See KUNIT_EXPECT_TRUE() for
* more information.
*/
#define KUNIT_EXPECT_GE(test, left, right) \
KUNIT_EXPECT_GE_MSG(test, left, right, NULL)
#define KUNIT_EXPECT_GE_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_INT_ASSERTION(test, \
KUNIT_EXPECTATION, \
left, >=, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_EXPECT_STREQ() - Expects that strings @left and @right are equal.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a null terminated string.
* @right: an arbitrary expression that evaluates to a null terminated string.
*
* Sets an expectation that the values that @left and @right evaluate to are
* equal. This is semantically equivalent to
* KUNIT_EXPECT_TRUE(@test, !strcmp((@left), (@right))). See KUNIT_EXPECT_TRUE()
* for more information.
*/
#define KUNIT_EXPECT_STREQ(test, left, right) \
KUNIT_EXPECT_STREQ_MSG(test, left, right, NULL)
#define KUNIT_EXPECT_STREQ_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_STR_ASSERTION(test, \
KUNIT_EXPECTATION, \
left, ==, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_EXPECT_STRNEQ() - Expects that strings @left and @right are not equal.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a null terminated string.
* @right: an arbitrary expression that evaluates to a null terminated string.
*
* Sets an expectation that the values that @left and @right evaluate to are
* not equal. This is semantically equivalent to
* KUNIT_EXPECT_TRUE(@test, strcmp((@left), (@right))). See KUNIT_EXPECT_TRUE()
* for more information.
*/
#define KUNIT_EXPECT_STRNEQ(test, left, right) \
KUNIT_EXPECT_STRNEQ_MSG(test, left, right, NULL)
#define KUNIT_EXPECT_STRNEQ_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_STR_ASSERTION(test, \
KUNIT_EXPECTATION, \
left, !=, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_EXPECT_MEMEQ() - Expects that the first @size bytes of @left and @right are equal.
* @test: The test context object.
* @left: An arbitrary expression that evaluates to the specified size.
* @right: An arbitrary expression that evaluates to the specified size.
* @size: Number of bytes compared.
*
* Sets an expectation that the values that @left and @right evaluate to are
* equal. This is semantically equivalent to
* KUNIT_EXPECT_TRUE(@test, !memcmp((@left), (@right), (@size))). See
* KUNIT_EXPECT_TRUE() for more information.
*
* Although this expectation works for any memory block, it is not recommended
* for comparing more structured data, such as structs. This expectation is
* recommended for comparing, for example, data arrays.
*/
#define KUNIT_EXPECT_MEMEQ(test, left, right, size) \
KUNIT_EXPECT_MEMEQ_MSG(test, left, right, size, NULL)
#define KUNIT_EXPECT_MEMEQ_MSG(test, left, right, size, fmt, ...) \
KUNIT_MEM_ASSERTION(test, \
KUNIT_EXPECTATION, \
left, ==, right, \
size, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_EXPECT_MEMNEQ() - Expects that the first @size bytes of @left and @right are not equal.
* @test: The test context object.
* @left: An arbitrary expression that evaluates to the specified size.
* @right: An arbitrary expression that evaluates to the specified size.
* @size: Number of bytes compared.
*
* Sets an expectation that the values that @left and @right evaluate to are
* not equal. This is semantically equivalent to
* KUNIT_EXPECT_TRUE(@test, memcmp((@left), (@right), (@size))). See
* KUNIT_EXPECT_TRUE() for more information.
*
* Although this expectation works for any memory block, it is not recommended
* for comparing more structured data, such as structs. This expectation is
* recommended for comparing, for example, data arrays.
*/
#define KUNIT_EXPECT_MEMNEQ(test, left, right, size) \
KUNIT_EXPECT_MEMNEQ_MSG(test, left, right, size, NULL)
#define KUNIT_EXPECT_MEMNEQ_MSG(test, left, right, size, fmt, ...) \
KUNIT_MEM_ASSERTION(test, \
KUNIT_EXPECTATION, \
left, !=, right, \
size, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_EXPECT_NULL() - Expects that @ptr is null.
* @test: The test context object.
* @ptr: an arbitrary pointer.
*
* Sets an expectation that the value that @ptr evaluates to is null. This is
* semantically equivalent to KUNIT_EXPECT_PTR_EQ(@test, ptr, NULL).
* See KUNIT_EXPECT_TRUE() for more information.
*/
#define KUNIT_EXPECT_NULL(test, ptr) \
KUNIT_EXPECT_NULL_MSG(test, \
ptr, \
NULL)
#define KUNIT_EXPECT_NULL_MSG(test, ptr, fmt, ...) \
KUNIT_BINARY_PTR_ASSERTION(test, \
KUNIT_EXPECTATION, \
ptr, ==, NULL, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_EXPECT_NOT_NULL() - Expects that @ptr is not null.
* @test: The test context object.
* @ptr: an arbitrary pointer.
*
* Sets an expectation that the value that @ptr evaluates to is not null. This
* is semantically equivalent to KUNIT_EXPECT_PTR_NE(@test, ptr, NULL).
* See KUNIT_EXPECT_TRUE() for more information.
*/
#define KUNIT_EXPECT_NOT_NULL(test, ptr) \
KUNIT_EXPECT_NOT_NULL_MSG(test, \
ptr, \
NULL)
#define KUNIT_EXPECT_NOT_NULL_MSG(test, ptr, fmt, ...) \
KUNIT_BINARY_PTR_ASSERTION(test, \
KUNIT_EXPECTATION, \
ptr, !=, NULL, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_EXPECT_NOT_ERR_OR_NULL() - Expects that @ptr is not null and not err.
* @test: The test context object.
* @ptr: an arbitrary pointer.
*
* Sets an expectation that the value that @ptr evaluates to is not null and not
* an errno stored in a pointer. This is semantically equivalent to
* KUNIT_EXPECT_TRUE(@test, !IS_ERR_OR_NULL(@ptr)). See KUNIT_EXPECT_TRUE() for
* more information.
*/
#define KUNIT_EXPECT_NOT_ERR_OR_NULL(test, ptr) \
KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, ptr, NULL)
#define KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, ptr, fmt, ...) \
KUNIT_PTR_NOT_ERR_OR_NULL_MSG_ASSERTION(test, \
KUNIT_EXPECTATION, \
ptr, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_FAIL_AND_ABORT() - Always causes a test to fail and abort when evaluated.
* @test: The test context object.
* @fmt: an informational message to be printed when the assertion is made.
* @...: string format arguments.
*
* The opposite of KUNIT_SUCCEED(), it is an assertion that always fails. In
* other words, it always results in a failed assertion, and consequently
* always causes the test case to fail and abort when evaluated.
* See KUNIT_ASSERT_TRUE() for more information.
*/
#define KUNIT_FAIL_AND_ABORT(test, fmt, ...) \
KUNIT_FAIL_ASSERTION(test, KUNIT_ASSERTION, fmt, ##__VA_ARGS__)
/**
* KUNIT_ASSERT_TRUE() - Sets an assertion that @condition is true.
* @test: The test context object.
* @condition: an arbitrary boolean expression. The test fails and aborts when
* this does not evaluate to true.
*
* This and assertions of the form `KUNIT_ASSERT_*` will cause the test case to
* fail *and immediately abort* when the specified condition is not met. Unlike
* an expectation failure, it will prevent the test case from continuing to run;
* this is otherwise known as an *assertion failure*.
*/
#define KUNIT_ASSERT_TRUE(test, condition) \
KUNIT_ASSERT_TRUE_MSG(test, condition, NULL)
#define KUNIT_ASSERT_TRUE_MSG(test, condition, fmt, ...) \
KUNIT_TRUE_MSG_ASSERTION(test, \
KUNIT_ASSERTION, \
condition, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ASSERT_FALSE() - Sets an assertion that @condition is false.
* @test: The test context object.
* @condition: an arbitrary boolean expression.
*
* Sets an assertion that the value that @condition evaluates to is false. This
* is the same as KUNIT_EXPECT_FALSE(), except it causes an assertion failure
* (see KUNIT_ASSERT_TRUE()) when the assertion is not met.
*/
#define KUNIT_ASSERT_FALSE(test, condition) \
KUNIT_ASSERT_FALSE_MSG(test, condition, NULL)
#define KUNIT_ASSERT_FALSE_MSG(test, condition, fmt, ...) \
KUNIT_FALSE_MSG_ASSERTION(test, \
KUNIT_ASSERTION, \
condition, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ASSERT_EQ() - Sets an assertion that @left and @right are equal.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a primitive C type.
* @right: an arbitrary expression that evaluates to a primitive C type.
*
* Sets an assertion that the values that @left and @right evaluate to are
* equal. This is the same as KUNIT_EXPECT_EQ(), except it causes an assertion
* failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met.
*/
#define KUNIT_ASSERT_EQ(test, left, right) \
KUNIT_ASSERT_EQ_MSG(test, left, right, NULL)
#define KUNIT_ASSERT_EQ_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_INT_ASSERTION(test, \
KUNIT_ASSERTION, \
left, ==, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ASSERT_PTR_EQ() - Asserts that pointers @left and @right are equal.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a pointer.
* @right: an arbitrary expression that evaluates to a pointer.
*
* Sets an assertion that the values that @left and @right evaluate to are
* equal. This is the same as KUNIT_EXPECT_EQ(), except it causes an assertion
* failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met.
*/
#define KUNIT_ASSERT_PTR_EQ(test, left, right) \
KUNIT_ASSERT_PTR_EQ_MSG(test, left, right, NULL)
#define KUNIT_ASSERT_PTR_EQ_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_PTR_ASSERTION(test, \
KUNIT_ASSERTION, \
left, ==, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ASSERT_NE() - An assertion that @left and @right are not equal.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a primitive C type.
* @right: an arbitrary expression that evaluates to a primitive C type.
*
* Sets an assertion that the values that @left and @right evaluate to are not
* equal. This is the same as KUNIT_EXPECT_NE(), except it causes an assertion
* failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met.
*/
#define KUNIT_ASSERT_NE(test, left, right) \
KUNIT_ASSERT_NE_MSG(test, left, right, NULL)
#define KUNIT_ASSERT_NE_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_INT_ASSERTION(test, \
KUNIT_ASSERTION, \
left, !=, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ASSERT_PTR_NE() - Asserts that pointers @left and @right are not equal.
* KUNIT_ASSERT_PTR_EQ() - Asserts that pointers @left and @right are equal.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a pointer.
* @right: an arbitrary expression that evaluates to a pointer.
*
* Sets an assertion that the values that @left and @right evaluate to are not
* equal. This is the same as KUNIT_EXPECT_NE(), except it causes an assertion
* failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met.
*/
#define KUNIT_ASSERT_PTR_NE(test, left, right) \
KUNIT_ASSERT_PTR_NE_MSG(test, left, right, NULL)
#define KUNIT_ASSERT_PTR_NE_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_PTR_ASSERTION(test, \
KUNIT_ASSERTION, \
left, !=, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ASSERT_LT() - An assertion that @left is less than @right.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a primitive C type.
* @right: an arbitrary expression that evaluates to a primitive C type.
*
* Sets an assertion that the value that @left evaluates to is less than the
* value that @right evaluates to. This is the same as KUNIT_EXPECT_LT(), except
* it causes an assertion failure (see KUNIT_ASSERT_TRUE()) when the assertion
* is not met.
*/
#define KUNIT_ASSERT_LT(test, left, right) \
KUNIT_ASSERT_LT_MSG(test, left, right, NULL)
#define KUNIT_ASSERT_LT_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_INT_ASSERTION(test, \
KUNIT_ASSERTION, \
left, <, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ASSERT_LE() - An assertion that @left is less than or equal to @right.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a primitive C type.
* @right: an arbitrary expression that evaluates to a primitive C type.
*
* Sets an assertion that the value that @left evaluates to is less than or
* equal to the value that @right evaluates to. This is the same as
* KUNIT_EXPECT_LE(), except it causes an assertion failure (see
* KUNIT_ASSERT_TRUE()) when the assertion is not met.
*/
#define KUNIT_ASSERT_LE(test, left, right) \
KUNIT_ASSERT_LE_MSG(test, left, right, NULL)
#define KUNIT_ASSERT_LE_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_INT_ASSERTION(test, \
KUNIT_ASSERTION, \
left, <=, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ASSERT_GT() - An assertion that @left is greater than @right.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a primitive C type.
* @right: an arbitrary expression that evaluates to a primitive C type.
*
* Sets an assertion that the value that @left evaluates to is greater than the
* value that @right evaluates to. This is the same as KUNIT_EXPECT_GT(), except
* it causes an assertion failure (see KUNIT_ASSERT_TRUE()) when the assertion
* is not met.
*/
#define KUNIT_ASSERT_GT(test, left, right) \
KUNIT_ASSERT_GT_MSG(test, left, right, NULL)
#define KUNIT_ASSERT_GT_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_INT_ASSERTION(test, \
KUNIT_ASSERTION, \
left, >, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ASSERT_GE() - Assertion that @left is greater than or equal to @right.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a primitive C type.
* @right: an arbitrary expression that evaluates to a primitive C type.
*
* Sets an assertion that the value that @left evaluates to is greater than the
* value that @right evaluates to. This is the same as KUNIT_EXPECT_GE(), except
* it causes an assertion failure (see KUNIT_ASSERT_TRUE()) when the assertion
* is not met.
*/
#define KUNIT_ASSERT_GE(test, left, right) \
KUNIT_ASSERT_GE_MSG(test, left, right, NULL)
#define KUNIT_ASSERT_GE_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_INT_ASSERTION(test, \
KUNIT_ASSERTION, \
left, >=, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ASSERT_STREQ() - An assertion that strings @left and @right are equal.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a null terminated string.
* @right: an arbitrary expression that evaluates to a null terminated string.
*
* Sets an assertion that the values that @left and @right evaluate to are
* equal. This is the same as KUNIT_EXPECT_STREQ(), except it causes an
* assertion failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met.
*/
#define KUNIT_ASSERT_STREQ(test, left, right) \
KUNIT_ASSERT_STREQ_MSG(test, left, right, NULL)
#define KUNIT_ASSERT_STREQ_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_STR_ASSERTION(test, \
KUNIT_ASSERTION, \
left, ==, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ASSERT_STRNEQ() - An assertion that strings @left and @right are not equal.
* @test: The test context object.
* @left: an arbitrary expression that evaluates to a null terminated string.
* @right: an arbitrary expression that evaluates to a null terminated string.
*
* Sets an assertion that the values that @left and @right evaluate to are
* not equal. This is semantically equivalent to
* KUNIT_ASSERT_TRUE(@test, strcmp((@left), (@right))). See KUNIT_ASSERT_TRUE()
* for more information.
*/
#define KUNIT_ASSERT_STRNEQ(test, left, right) \
KUNIT_ASSERT_STRNEQ_MSG(test, left, right, NULL)
#define KUNIT_ASSERT_STRNEQ_MSG(test, left, right, fmt, ...) \
KUNIT_BINARY_STR_ASSERTION(test, \
KUNIT_ASSERTION, \
left, !=, right, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ASSERT_MEMEQ() - Asserts that the first @size bytes of @left and @right are equal.
* @test: The test context object.
* @left: An arbitrary expression that evaluates to the specified size.
* @right: An arbitrary expression that evaluates to the specified size.
* @size: Number of bytes compared.
*
* Sets an assertion that the values that @left and @right evaluate to are
* equal. This is semantically equivalent to
* KUNIT_ASSERT_TRUE(@test, !memcmp((@left), (@right), (@size))). See
* KUNIT_ASSERT_TRUE() for more information.
*
* Although this assertion works for any memory block, it is not recommended
* for comparing more structured data, such as structs. This assertion is
* recommended for comparing, for example, data arrays.
*/
#define KUNIT_ASSERT_MEMEQ(test, left, right, size) \
KUNIT_ASSERT_MEMEQ_MSG(test, left, right, size, NULL)
#define KUNIT_ASSERT_MEMEQ_MSG(test, left, right, size, fmt, ...) \
KUNIT_MEM_ASSERTION(test, \
KUNIT_ASSERTION, \
left, ==, right, \
size, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ASSERT_MEMNEQ() - Asserts that the first @size bytes of @left and @right are not equal.
* @test: The test context object.
* @left: An arbitrary expression that evaluates to the specified size.
* @right: An arbitrary expression that evaluates to the specified size.
* @size: Number of bytes compared.
*
* Sets an assertion that the values that @left and @right evaluate to are
* not equal. This is semantically equivalent to
* KUNIT_ASSERT_TRUE(@test, memcmp((@left), (@right), (@size))). See
* KUNIT_ASSERT_TRUE() for more information.
*
* Although this assertion works for any memory block, it is not recommended
* for comparing more structured data, such as structs. This assertion is
* recommended for comparing, for example, data arrays.
*/
#define KUNIT_ASSERT_MEMNEQ(test, left, right, size) \
KUNIT_ASSERT_MEMNEQ_MSG(test, left, right, size, NULL)
#define KUNIT_ASSERT_MEMNEQ_MSG(test, left, right, size, fmt, ...) \
KUNIT_MEM_ASSERTION(test, \
KUNIT_ASSERTION, \
left, !=, right, \
size, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ASSERT_NULL() - Asserts that pointers @ptr is null.
* @test: The test context object.
* @ptr: an arbitrary pointer.
*
* Sets an assertion that the values that @ptr evaluates to is null. This is
* the same as KUNIT_EXPECT_NULL(), except it causes an assertion
* failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met.
*/
#define KUNIT_ASSERT_NULL(test, ptr) \
KUNIT_ASSERT_NULL_MSG(test, \
ptr, \
NULL)
#define KUNIT_ASSERT_NULL_MSG(test, ptr, fmt, ...) \
KUNIT_BINARY_PTR_ASSERTION(test, \
KUNIT_ASSERTION, \
ptr, ==, NULL, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ASSERT_NOT_NULL() - Asserts that pointers @ptr is not null.
* @test: The test context object.
* @ptr: an arbitrary pointer.
*
* Sets an assertion that the values that @ptr evaluates to is not null. This
* is the same as KUNIT_EXPECT_NOT_NULL(), except it causes an assertion
* failure (see KUNIT_ASSERT_TRUE()) when the assertion is not met.
*/
#define KUNIT_ASSERT_NOT_NULL(test, ptr) \
KUNIT_ASSERT_NOT_NULL_MSG(test, \
ptr, \
NULL)
#define KUNIT_ASSERT_NOT_NULL_MSG(test, ptr, fmt, ...) \
KUNIT_BINARY_PTR_ASSERTION(test, \
KUNIT_ASSERTION, \
ptr, !=, NULL, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ASSERT_NOT_ERR_OR_NULL() - Assertion that @ptr is not null and not err.
* @test: The test context object.
* @ptr: an arbitrary pointer.
*
* Sets an assertion that the value that @ptr evaluates to is not null and not
* an errno stored in a pointer. This is the same as
* KUNIT_EXPECT_NOT_ERR_OR_NULL(), except it causes an assertion failure (see
* KUNIT_ASSERT_TRUE()) when the assertion is not met.
*/
#define KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr) \
KUNIT_ASSERT_NOT_ERR_OR_NULL_MSG(test, ptr, NULL)
#define KUNIT_ASSERT_NOT_ERR_OR_NULL_MSG(test, ptr, fmt, ...) \
KUNIT_PTR_NOT_ERR_OR_NULL_MSG_ASSERTION(test, \
KUNIT_ASSERTION, \
ptr, \
fmt, \
##__VA_ARGS__)
/**
* KUNIT_ARRAY_PARAM() - Define test parameter generator from an array.
* @name: prefix for the test parameter generator function.
* @array: array of test parameters.
* @get_desc: function to convert param to description; NULL to use default
*
* Define function @name_gen_params which uses @array to generate parameters.
*/
#define KUNIT_ARRAY_PARAM(name, array, get_desc) \
static const void *name##_gen_params(const void *prev, char *desc) \
{ \
typeof((array)[0]) *__next = prev ? ((typeof(__next)) prev) + 1 : (array); \
if (__next - (array) < ARRAY_SIZE((array))) { \
void (*__get_desc)(typeof(__next), char *) = get_desc; \
if (__get_desc) \
__get_desc(__next, desc); \
return __next; \
} \
return NULL; \
}
/**
* KUNIT_ARRAY_PARAM_DESC() - Define test parameter generator from an array.
* @name: prefix for the test parameter generator function.
* @array: array of test parameters.
* @desc_member: structure member from array element to use as description
*
* Define function @name_gen_params which uses @array to generate parameters.
*/
#define KUNIT_ARRAY_PARAM_DESC(name, array, desc_member) \
static const void *name##_gen_params(const void *prev, char *desc) \
{ \
typeof((array)[0]) *__next = prev ? ((typeof(__next)) prev) + 1 : (array); \
if (__next - (array) < ARRAY_SIZE((array))) { \
strscpy(desc, __next->desc_member, KUNIT_PARAM_DESC_SIZE); \
return __next; \
} \
return NULL; \
}
// TODO(dlatypov@google.com): consider eventually migrating users to explicitly
// include resource.h themselves if they need it.
#include <kunit/resource.h>
#endif /* _KUNIT_TEST_H */
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