/* 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_slow , 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 );
bool kunit_autorun(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,
bool run_tests);
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_attach_mm ( ) - Create and attach a new mm if it doesn ' t already exist .
*
* Allocates a & struct mm_struct and attaches it to @ current . In most cases , call
* kunit_vm_mmap ( ) without calling kunit_attach_mm ( ) directly . Only necessary when
* code under test accesses the mm before executing the mmap ( e . g . , to perform
* additional initialization beforehand ) .
*
* Return : 0 on success , - errno on failure .
*/
int kunit_attach_mm(void );
/**
* 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 as skipped
*
* @ test : 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, fmt, ...) \
do { \
WRITE_ONCE((test)->status, KUNIT_SKIPPED); \
scnprintf((test)->status_comment, \
KUNIT_STATUS_COMMENT_SIZE, \
fmt, ## __VA_ARGS__); \
} while (0 )
/**
* kunit_skip ( ) - Marks @ test as skipped
*
* @ test : 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, fmt, ...) \
do { \
kunit_mark_skipped((test), fmt, ## __VA_ARGS__); \
kunit_try_catch_throw(&((test)->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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