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/*
* Copyright 2008 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef CMOCKA_H_
#define CMOCKA_H_
#ifdef _WIN32
# ifdef _MSC_VER
#define __func__ __FUNCTION__
# ifndef inline
#define inline __inline
# endif /* inline */
# if _MSC_VER < 1500
# ifdef __cplusplus
extern "C" {
# endif /* __cplusplus */
int __stdcall IsDebuggerPresent();
# ifdef __cplusplus
} /* extern "C" */
# endif /* __cplusplus */
# endif /* _MSC_VER < 1500 */
# endif /* _MSC_VER */
#endif /* _WIN32 */
/**
* @defgroup cmocka The CMocka API
*
* These headers or their equivalents should be included prior to including
* this header file.
* @code
* #include <stdarg.h>
* #include <stddef.h>
* #include <setjmp.h>
* @endcode
*
* This allows test applications to use custom definitions of C standard
* library functions and types.
*
* @{
*/
/* If __WORDSIZE is not set, try to figure it out and default to 32 bit. */
#ifndef __WORDSIZE
# if defined(__x86_64__) && !defined(__ILP32__)
# define __WORDSIZE 64
# else
# define __WORDSIZE 32
# endif
#endif
#ifdef DOXYGEN
/**
* Largest integral type. This type should be large enough to hold any
* pointer or integer supported by the compiler.
*/
typedef uintmax_t LargestIntegralType;
#else /* DOXGEN */
#ifndef LargestIntegralType
# if __WORDSIZE == 64
# define LargestIntegralType unsigned long int
# else
# define LargestIntegralType unsigned long long int
# endif
#endif /* LargestIntegralType */
#endif /* DOXYGEN */
/* Printf format used to display LargestIntegralType as a hexidecimal. */
#ifndef LargestIntegralTypePrintfFormat
# ifdef _WIN32
# define LargestIntegralTypePrintfFormat "0x%I64x"
# else
# if __WORDSIZE == 64
# define LargestIntegralTypePrintfFormat "%#lx"
# else
# define LargestIntegralTypePrintfFormat "%#llx"
# endif
# endif /* _WIN32 */
#endif /* LargestIntegralTypePrintfFormat */
/* Printf format used to display LargestIntegralType as a decimal. */
#ifndef LargestIntegralTypePrintfFormatDecimal
# ifdef _WIN32
# define LargestIntegralTypePrintfFormatDecimal "%I64u"
# else
# if __WORDSIZE == 64
# define LargestIntegralTypePrintfFormatDecimal "%lu"
# else
# define LargestIntegralTypePrintfFormatDecimal "%llu"
# endif
# endif /* _WIN32 */
#endif /* LargestIntegralTypePrintfFormat */
/* Perform an unsigned cast to LargestIntegralType. */
#define cast_to_largest_integral_type(value) \
((LargestIntegralType)(value))
/* Smallest integral type capable of holding a pointer. */
#if !defined(_UINTPTR_T) && !defined(_UINTPTR_T_DEFINED)
# if defined(_WIN32)
/* WIN32 is an ILP32 platform */
typedef unsigned int uintptr_t;
# elif defined(_WIN64)
typedef unsigned long int uintptr_t
# else /* _WIN32 */
/* ILP32 and LP64 platforms */
# ifdef __WORDSIZE /* glibc */
# if __WORDSIZE == 64
typedef unsigned long int uintptr_t;
# else
typedef unsigned int uintptr_t;
# endif /* __WORDSIZE == 64 */
# else /* __WORDSIZE */
# if defined(_LP64) || defined(_I32LPx)
typedef unsigned long int uintptr_t;
# else
typedef unsigned int uintptr_t;
# endif
# endif /* __WORDSIZE */
# endif /* _WIN32 */
# define _UINTPTR_T
# define _UINTPTR_T_DEFINED
#endif /* !defined(_UINTPTR_T) || !defined(_UINTPTR_T_DEFINED) */
/* Perform an unsigned cast to uintptr_t. */
#define cast_to_pointer_integral_type(value) \
((uintptr_t)((size_t)(value)))
/* Perform a cast of a pointer to LargestIntegralType */
#define cast_ptr_to_largest_integral_type(value) \
cast_to_largest_integral_type(cast_to_pointer_integral_type(value))
/* GCC have printf type attribute check. */
#ifdef __GNUC__
#define CMOCKA_PRINTF_ATTRIBUTE(a,b) \
__attribute__ ((__format__ (__printf__, a, b)))
#else
#define CMOCKA_PRINTF_ATTRIBUTE(a,b)
#endif /* __GNUC__ */
#if defined(__GNUC__)
#define CMOCKA_DEPRECATED __attribute__ ((deprecated))
#elif defined(_MSC_VER)
#define CMOCKA_DEPRECATED __declspec(deprecated)
#else
#define CMOCKA_DEPRECATED
#endif
#define WILL_RETURN_ALWAYS -1
#define WILL_RETURN_ONCE -2
/**
* @defgroup cmocka_mock Mock Objects
* @ingroup cmocka
*
* Mock objects mock objects are simulated objects that mimic the behavior of
* real objects. Instead of calling the real objects, the tested object calls a
* mock object that merely asserts that the correct methods were called, with
* the expected parameters, in the correct order.
*
* <ul>
* <li><strong>will_return(function, value)</strong> - The will_return() macro
* pushes a value onto a stack of mock values. This macro is intended to be
* used by the unit test itself, while programming the behaviour of the mocked
* object.</li>
*
* <li><strong>mock()</strong> - the mock macro pops a value from a stack of
* test values. The user of the mock() macro is the mocked object that uses it
* to learn how it should behave.</li>
* </ul>
*
* Because the will_return() and mock() are intended to be used in pairs, the
* cmocka library would fail the test if there are more values pushed onto the
* stack using will_return() than consumed with mock() and vice-versa.
*
* The following unit test stub illustrates how would a unit test instruct the
* mock object to return a particular value:
*
* @code
* will_return(chef_cook, "hotdog");
* will_return(chef_cook, 0);
* @endcode
*
* Now the mock object can check if the parameter it received is the parameter
* which is expected by the test driver. This can be done the following way:
*
* @code
* int chef_cook(const char *order, char **dish_out)
* {
* check_expected(order);
* }
* @endcode
*
* For a complete example please at a look
* <a href="http://git.cryptomilk.org/projects/cmocka.git/tree/example/chef_wrap/waiter_test_wrap.c">here</a>.
*
* @{
*/
#ifdef DOXYGEN
/**
* @brief Retrieve a return value of the current function.
*
* @return The value which was stored to return by this function.
*
* @see will_return()
*/
LargestIntegralType mock(void);
#else
#define mock() _mock(__func__, __FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Retrieve a typed return value of the current function.
*
* The value would be casted to type internally to avoid having the
* caller to do the cast manually.
*
* @param[in] #type The expected type of the return value
*
* @return The value which was stored to return by this function.
*
* @code
* int param;
*
* param = mock_type(int);
* @endcode
*
* @see will_return()
* @see mock()
* @see mock_ptr_type()
*/
#type mock_type(#type);
#else
#define mock_type(type) ((type) mock())
#endif
#ifdef DOXYGEN
/**
* @brief Retrieve a typed return value of the current function.
*
* The value would be casted to type internally to avoid having the
* caller to do the cast manually but also casted to uintptr_t to make
* sure the result has a valid size to be used as a pointer.
*
* @param[in] #type The expected type of the return value
*
* @return The value which was stored to return by this function.
*
* @code
* char *param;
*
* param = mock_ptr_type(char *);
* @endcode
*
* @see will_return()
* @see mock()
* @see mock_type()
*/
type mock_ptr_type(#type);
#else
#define mock_ptr_type(type) ((type) (uintptr_t) mock())
#endif
#ifdef DOXYGEN
/**
* @brief Store a value to be returned by mock() later.
*
* @param[in] #function The function which should return the given value.
*
* @param[in] value The value to be returned by mock().
*
* @code
* int return_integer(void)
* {
* return (int)mock();
* }
*
* static void test_integer_return(void **state)
* {
* will_return(return_integer, 42);
*
* assert_int_equal(my_function_calling_return_integer(), 42);
* }
* @endcode
*
* @see mock()
* @see will_return_count()
*/
void will_return(#function, LargestIntegralType value);
#else
#define will_return(function, value) \
_will_return(#function, __FILE__, __LINE__, \
cast_to_largest_integral_type(value), 1)
#endif
#ifdef DOXYGEN
/**
* @brief Store a value to be returned by mock() later.
*
* @param[in] #function The function which should return the given value.
*
* @param[in] value The value to be returned by mock().
*
* @param[in] count The parameter indicates the number of times the value should
* be returned by mock(). If count is set to -1, the value
* will always be returned but must be returned at least once.
* If count is set to -2, the value will always be returned
* by mock(), but is not required to be returned.
*
* @see mock()
*/
void will_return_count(#function, LargestIntegralType value, int count);
#else
#define will_return_count(function, value, count) \
_will_return(#function, __FILE__, __LINE__, \
cast_to_largest_integral_type(value), count)
#endif
#ifdef DOXYGEN
/**
* @brief Store a value that will be always returned by mock().
*
* @param[in] #function The function which should return the given value.
*
* @param[in] #value The value to be returned by mock().
*
* This is equivalent to:
* @code
* will_return_count(function, value, -1);
* @endcode
*
* @see will_return_count()
* @see mock()
*/
void will_return_always(#function, LargestIntegralType value);
#else
#define will_return_always(function, value) \
will_return_count(function, (value), WILL_RETURN_ALWAYS)
#endif
#ifdef DOXYGEN
/**
* @brief Store a value that may be always returned by mock().
*
* This stores a value which will always be returned by mock() but is not
* required to be returned by at least one call to mock(). Therefore,
* in contrast to will_return_always() which causes a test failure if it
* is not returned at least once, will_return_maybe() will never cause a test
* to fail if its value is not returned.
*
* @param[in] #function The function which should return the given value.
*
* @param[in] #value The value to be returned by mock().
*
* This is equivalent to:
* @code
* will_return_count(function, value, -2);
* @endcode
*
* @see will_return_count()
* @see mock()
*/
void will_return_maybe(#function, LargestIntegralType value);
#else
#define will_return_maybe(function, value) \
will_return_count(function, (value), WILL_RETURN_ONCE)
#endif
/** @} */
/**
* @defgroup cmocka_param Checking Parameters
* @ingroup cmocka
*
* Functionality to store expected values for mock function parameters.
*
* In addition to storing the return values of mock functions, cmocka provides
* functionality to store expected values for mock function parameters using
* the expect_*() functions provided. A mock function parameter can then be
* validated using the check_expected() macro.
*
* Successive calls to expect_*() macros for a parameter queues values to check
* the specified parameter. check_expected() checks a function parameter
* against the next value queued using expect_*(), if the parameter check fails
* a test failure is signalled. In addition if check_expected() is called and
* no more parameter values are queued a test failure occurs.
*
* The following test stub illustrates how to do this. First is the the function
* we call in the test driver:
*
* @code
* static void test_driver(void **state)
* {
* expect_string(chef_cook, order, "hotdog");
* }
* @endcode
*
* Now the chef_cook function can check if the parameter we got passed is the
* parameter which is expected by the test driver. This can be done the
* following way:
*
* @code
* int chef_cook(const char *order, char **dish_out)
* {
* check_expected(order);
* }
* @endcode
*
* For a complete example please at a look at
* <a href="http://git.cryptomilk.org/projects/cmocka.git/tree/example/chef_wrap/waiter_test_wrap.c">here</a>
*
* @{
*/
/*
* Add a custom parameter checking function. If the event parameter is NULL
* the event structure is allocated internally by this function. If event
* parameter is provided it must be allocated on the heap and doesn't need to
* be deallocated by the caller.
*/
#ifdef DOXYGEN
/**
* @brief Add a custom parameter checking function.
*
* If the event parameter is NULL the event structure is allocated internally
* by this function. If the parameter is provided it must be allocated on the
* heap and doesn't need to be deallocated by the caller.
*
* @param[in] #function The function to add a custom parameter checking
* function for.
*
* @param[in] #parameter The parameters passed to the function.
*
* @param[in] #check_function The check function to call.
*
* @param[in] check_data The data to pass to the check function.
*/
void expect_check(#function, #parameter, #check_function, const void *check_data);
#else
#define expect_check(function, parameter, check_function, check_data) \
_expect_check(#function, #parameter, __FILE__, __LINE__, check_function, \
cast_to_largest_integral_type(check_data), NULL, 1)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to check if the parameter value is part of the provided
* array.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] value_array[] The array to check for the value.
*
* @see check_expected().
*/
void expect_in_set(#function, #parameter, LargestIntegralType value_array[]);
#else
#define expect_in_set(function, parameter, value_array) \
expect_in_set_count(function, parameter, value_array, 1)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to check if the parameter value is part of the provided
* array.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] value_array[] The array to check for the value.
*
* @param[in] count The count parameter returns the number of times the value
* should be returned by check_expected(). If count is set
* to -1 the value will always be returned.
*
* @see check_expected().
*/
void expect_in_set_count(#function, #parameter, LargestIntegralType value_array[], size_t count);
#else
#define expect_in_set_count(function, parameter, value_array, count) \
_expect_in_set(#function, #parameter, __FILE__, __LINE__, value_array, \
sizeof(value_array) / sizeof((value_array)[0]), count)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to check if the parameter value is not part of the
* provided array.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] value_array[] The array to check for the value.
*
* @see check_expected().
*/
void expect_not_in_set(#function, #parameter, LargestIntegralType value_array[]);
#else
#define expect_not_in_set(function, parameter, value_array) \
expect_not_in_set_count(function, parameter, value_array, 1)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to check if the parameter value is not part of the
* provided array.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] value_array[] The array to check for the value.
*
* @param[in] count The count parameter returns the number of times the value
* should be returned by check_expected(). If count is set
* to -1 the value will always be returned.
*
* @see check_expected().
*/
void expect_not_in_set_count(#function, #parameter, LargestIntegralType value_array[], size_t count);
#else
#define expect_not_in_set_count(function, parameter, value_array, count) \
_expect_not_in_set( \
#function, #parameter, __FILE__, __LINE__, value_array, \
sizeof(value_array) / sizeof((value_array)[0]), count)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to check a parameter is inside a numerical range.
* The check would succeed if minimum <= value <= maximum.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] minimum The lower boundary of the interval to check against.
*
* @param[in] maximum The upper boundary of the interval to check against.
*
* @see check_expected().
*/
void expect_in_range(#function, #parameter, LargestIntegralType minimum, LargestIntegralType maximum);
#else
#define expect_in_range(function, parameter, minimum, maximum) \
expect_in_range_count(function, parameter, minimum, maximum, 1)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to repeatedly check a parameter is inside a
* numerical range. The check would succeed if minimum <= value <= maximum.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] minimum The lower boundary of the interval to check against.
*
* @param[in] maximum The upper boundary of the interval to check against.
*
* @param[in] count The count parameter returns the number of times the value
* should be returned by check_expected(). If count is set
* to -1 the value will always be returned.
*
* @see check_expected().
*/
void expect_in_range_count(#function, #parameter, LargestIntegralType minimum, LargestIntegralType maximum, size_t count);
#else
#define expect_in_range_count(function, parameter, minimum, maximum, count) \
_expect_in_range(#function, #parameter, __FILE__, __LINE__, minimum, \
maximum, count)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to check a parameter is outside a numerical range.
* The check would succeed if minimum > value > maximum.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] minimum The lower boundary of the interval to check against.
*
* @param[in] maximum The upper boundary of the interval to check against.
*
* @see check_expected().
*/
void expect_not_in_range(#function, #parameter, LargestIntegralType minimum, LargestIntegralType maximum);
#else
#define expect_not_in_range(function, parameter, minimum, maximum) \
expect_not_in_range_count(function, parameter, minimum, maximum, 1)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to repeatedly check a parameter is outside a
* numerical range. The check would succeed if minimum > value > maximum.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] minimum The lower boundary of the interval to check against.
*
* @param[in] maximum The upper boundary of the interval to check against.
*
* @param[in] count The count parameter returns the number of times the value
* should be returned by check_expected(). If count is set
* to -1 the value will always be returned.
*
* @see check_expected().
*/
void expect_not_in_range_count(#function, #parameter, LargestIntegralType minimum, LargestIntegralType maximum, size_t count);
#else
#define expect_not_in_range_count(function, parameter, minimum, maximum, \
count) \
_expect_not_in_range(#function, #parameter, __FILE__, __LINE__, \
minimum, maximum, count)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to check if a parameter is the given value.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] value The value to check.
*
* @see check_expected().
*/
void expect_value(#function, #parameter, LargestIntegralType value);
#else
#define expect_value(function, parameter, value) \
expect_value_count(function, parameter, value, 1)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to repeatedly check if a parameter is the given value.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] value The value to check.
*
* @param[in] count The count parameter returns the number of times the value
* should be returned by check_expected(). If count is set
* to -1 the value will always be returned.
*
* @see check_expected().
*/
void expect_value_count(#function, #parameter, LargestIntegralType value, size_t count);
#else
#define expect_value_count(function, parameter, value, count) \
_expect_value(#function, #parameter, __FILE__, __LINE__, \
cast_to_largest_integral_type(value), count)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to check if a parameter isn't the given value.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] value The value to check.
*
* @see check_expected().
*/
void expect_not_value(#function, #parameter, LargestIntegralType value);
#else
#define expect_not_value(function, parameter, value) \
expect_not_value_count(function, parameter, value, 1)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to repeatedly check if a parameter isn't the given value.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] value The value to check.
*
* @param[in] count The count parameter returns the number of times the value
* should be returned by check_expected(). If count is set
* to -1 the value will always be returned.
*
* @see check_expected().
*/
void expect_not_value_count(#function, #parameter, LargestIntegralType value, size_t count);
#else
#define expect_not_value_count(function, parameter, value, count) \
_expect_not_value(#function, #parameter, __FILE__, __LINE__, \
cast_to_largest_integral_type(value), count)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to check if the parameter value is equal to the
* provided string.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] string The string value to compare.
*
* @see check_expected().
*/
void expect_string(#function, #parameter, const char *string);
#else
#define expect_string(function, parameter, string) \
expect_string_count(function, parameter, string, 1)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to check if the parameter value is equal to the
* provided string.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] string The string value to compare.
*
* @param[in] count The count parameter returns the number of times the value
* should be returned by check_expected(). If count is set
* to -1 the value will always be returned.
*
* @see check_expected().
*/
void expect_string_count(#function, #parameter, const char *string, size_t count);
#else
#define expect_string_count(function, parameter, string, count) \
_expect_string(#function, #parameter, __FILE__, __LINE__, \
(const char*)(string), count)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to check if the parameter value isn't equal to the
* provided string.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] string The string value to compare.
*
* @see check_expected().
*/
void expect_not_string(#function, #parameter, const char *string);
#else
#define expect_not_string(function, parameter, string) \
expect_not_string_count(function, parameter, string, 1)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to check if the parameter value isn't equal to the
* provided string.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] string The string value to compare.
*
* @param[in] count The count parameter returns the number of times the value
* should be returned by check_expected(). If count is set
* to -1 the value will always be returned.
*
* @see check_expected().
*/
void expect_not_string_count(#function, #parameter, const char *string, size_t count);
#else
#define expect_not_string_count(function, parameter, string, count) \
_expect_not_string(#function, #parameter, __FILE__, __LINE__, \
(const char*)(string), count)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to check if the parameter does match an area of memory.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] memory The memory to compare.
*
* @param[in] size The size of the memory to compare.
*
* @see check_expected().
*/
void expect_memory(#function, #parameter, void *memory, size_t size);
#else
#define expect_memory(function, parameter, memory, size) \
expect_memory_count(function, parameter, memory, size, 1)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to repeatedly check if the parameter does match an area
* of memory.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] memory The memory to compare.
*
* @param[in] size The size of the memory to compare.
*
* @param[in] count The count parameter returns the number of times the value
* should be returned by check_expected(). If count is set
* to -1 the value will always be returned.
*
* @see check_expected().
*/
void expect_memory_count(#function, #parameter, void *memory, size_t size, size_t count);
#else
#define expect_memory_count(function, parameter, memory, size, count) \
_expect_memory(#function, #parameter, __FILE__, __LINE__, \
(const void*)(memory), size, count)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to check if the parameter doesn't match an area of
* memory.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] memory The memory to compare.
*
* @param[in] size The size of the memory to compare.
*
* @see check_expected().
*/
void expect_not_memory(#function, #parameter, void *memory, size_t size);
#else
#define expect_not_memory(function, parameter, memory, size) \
expect_not_memory_count(function, parameter, memory, size, 1)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to repeatedly check if the parameter doesn't match an
* area of memory.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] memory The memory to compare.
*
* @param[in] size The size of the memory to compare.
*
* @param[in] count The count parameter returns the number of times the value
* should be returned by check_expected(). If count is set
* to -1 the value will always be returned.
*
* @see check_expected().
*/
void expect_not_memory_count(#function, #parameter, void *memory, size_t size, size_t count);
#else
#define expect_not_memory_count(function, parameter, memory, size, count) \
_expect_not_memory(#function, #parameter, __FILE__, __LINE__, \
(const void*)(memory), size, count)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to check if a parameter (of any value) has been passed.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @see check_expected().
*/
void expect_any(#function, #parameter);
#else
#define expect_any(function, parameter) \
expect_any_count(function, parameter, 1)
#endif
#ifdef DOXYGEN
/**
* @brief Add an event to repeatedly check if a parameter (of any value) has
* been passed.
*
* The event is triggered by calling check_expected() in the mocked function.
*
* @param[in] #function The function to add the check for.
*
* @param[in] #parameter The name of the parameter passed to the function.
*
* @param[in] count The count parameter returns the number of times the value
* should be returned by check_expected(). If count is set
* to -1 the value will always be returned.
*
* @see check_expected().
*/
void expect_any_count(#function, #parameter, size_t count);
#else
#define expect_any_count(function, parameter, count) \
_expect_any(#function, #parameter, __FILE__, __LINE__, count)
#endif
#ifdef DOXYGEN
/**
* @brief Determine whether a function parameter is correct.
*
* This ensures the next value queued by one of the expect_*() macros matches
* the specified variable.
*
* This function needs to be called in the mock object.
*
* @param[in] #parameter The parameter to check.
*/
void check_expected(#parameter);
#else
#define check_expected(parameter) \
_check_expected(__func__, #parameter, __FILE__, __LINE__, \
cast_to_largest_integral_type(parameter))
#endif
#ifdef DOXYGEN
/**
* @brief Determine whether a function parameter is correct.
*
* This ensures the next value queued by one of the expect_*() macros matches
* the specified variable.
*
* This function needs to be called in the mock object.
*
* @param[in] #parameter The pointer to check.
*/
void check_expected_ptr(#parameter);
#else
#define check_expected_ptr(parameter) \
_check_expected(__func__, #parameter, __FILE__, __LINE__, \
cast_ptr_to_largest_integral_type(parameter))
#endif
/** @} */
/**
* @defgroup cmocka_asserts Assert Macros
* @ingroup cmocka
*
* This is a set of useful assert macros like the standard C libary's
* assert(3) macro.
*
* On an assertion failure a cmocka assert macro will write the failure to the
* standard error stream and signal a test failure. Due to limitations of the C
* language the general C standard library assert() and cmocka's assert_true()
* and assert_false() macros can only display the expression that caused the
* assert failure. cmocka's type specific assert macros, assert_{type}_equal()
* and assert_{type}_not_equal(), display the data that caused the assertion
* failure which increases data visibility aiding debugging of failing test
* cases.
*
* @{
*/
#ifdef DOXYGEN
/**
* @brief Assert that the given expression is true.
*
* The function prints an error message to standard error and terminates the
* test by calling fail() if expression is false (i.e., compares equal to
* zero).
*
* @param[in] expression The expression to evaluate.
*
* @see assert_int_equal()
* @see assert_string_equal()
*/
void assert_true(scalar expression);
#else
#define assert_true(c) _assert_true(cast_to_largest_integral_type(c), #c, \
__FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Assert that the given expression is false.
*
* The function prints an error message to standard error and terminates the
* test by calling fail() if expression is true.
*
* @param[in] expression The expression to evaluate.
*
* @see assert_int_equal()
* @see assert_string_equal()
*/
void assert_false(scalar expression);
#else
#define assert_false(c) _assert_true(!(cast_to_largest_integral_type(c)), #c, \
__FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Assert that the return_code is greater than or equal to 0.
*
* The function prints an error message to standard error and terminates the
* test by calling fail() if the return code is smaller than 0. If the function
* you check sets an errno if it fails you can pass it to the function and
* it will be printed as part of the error message.
*
* @param[in] rc The return code to evaluate.
*
* @param[in] error Pass errno here or 0.
*/
void assert_return_code(int rc, int error);
#else
#define assert_return_code(rc, error) \
_assert_return_code(cast_to_largest_integral_type(rc), \
sizeof(rc), \
cast_to_largest_integral_type(error), \
#rc, __FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Assert that the given pointer is non-NULL.
*
* The function prints an error message to standard error and terminates the
* test by calling fail() if the pointer is non-NULL.
*
* @param[in] pointer The pointer to evaluate.
*
* @see assert_null()
*/
void assert_non_null(void *pointer);
#else
#define assert_non_null(c) _assert_true(cast_ptr_to_largest_integral_type(c), #c, \
__FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Assert that the given pointer is NULL.
*
* The function prints an error message to standard error and terminates the
* test by calling fail() if the pointer is non-NULL.
*
* @param[in] pointer The pointer to evaluate.
*
* @see assert_non_null()
*/
void assert_null(void *pointer);
#else
#define assert_null(c) _assert_true(!(cast_ptr_to_largest_integral_type(c)), #c, \
__FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Assert that the two given pointers are equal.
*
* The function prints an error message and terminates the test by calling
* fail() if the pointers are not equal.
*
* @param[in] a The first pointer to compare.
*
* @param[in] b The pointer to compare against the first one.
*/
void assert_ptr_equal(void *a, void *b);
#else
#define assert_ptr_equal(a, b) \
_assert_int_equal(cast_ptr_to_largest_integral_type(a), \
cast_ptr_to_largest_integral_type(b), \
__FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Assert that the two given pointers are not equal.
*
* The function prints an error message and terminates the test by calling
* fail() if the pointers are equal.
*
* @param[in] a The first pointer to compare.
*
* @param[in] b The pointer to compare against the first one.
*/
void assert_ptr_not_equal(void *a, void *b);
#else
#define assert_ptr_not_equal(a, b) \
_assert_int_not_equal(cast_ptr_to_largest_integral_type(a), \
cast_ptr_to_largest_integral_type(b), \
__FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Assert that the two given integers are equal.
*
* The function prints an error message to standard error and terminates the
* test by calling fail() if the integers are not equal.
*
* @param[in] a The first integer to compare.
*
* @param[in] b The integer to compare against the first one.
*/
void assert_int_equal(int a, int b);
#else
#define assert_int_equal(a, b) \
_assert_int_equal(cast_to_largest_integral_type(a), \
cast_to_largest_integral_type(b), \
__FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Assert that the two given integers are not equal.
*
* The function prints an error message to standard error and terminates the
* test by calling fail() if the integers are equal.
*
* @param[in] a The first integer to compare.
*
* @param[in] b The integer to compare against the first one.
*
* @see assert_int_equal()
*/
void assert_int_not_equal(int a, int b);
#else
#define assert_int_not_equal(a, b) \
_assert_int_not_equal(cast_to_largest_integral_type(a), \
cast_to_largest_integral_type(b), \
__FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Assert that the two given strings are equal.
*
* The function prints an error message to standard error and terminates the
* test by calling fail() if the strings are not equal.
*
* @param[in] a The string to check.
*
* @param[in] b The other string to compare.
*/
void assert_string_equal(const char *a, const char *b);
#else
#define assert_string_equal(a, b) \
_assert_string_equal((const char*)(a), (const char*)(b), __FILE__, \
__LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Assert that the two given strings are not equal.
*
* The function prints an error message to standard error and terminates the
* test by calling fail() if the strings are equal.
*
* @param[in] a The string to check.
*
* @param[in] b The other string to compare.
*/
void assert_string_not_equal(const char *a, const char *b);
#else
#define assert_string_not_equal(a, b) \
_assert_string_not_equal((const char*)(a), (const char*)(b), __FILE__, \
__LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Assert that the two given areas of memory are equal, otherwise fail.
*
* The function prints an error message to standard error and terminates the
* test by calling fail() if the memory is not equal.
*
* @param[in] a The first memory area to compare
* (interpreted as unsigned char).
*
* @param[in] b The second memory area to compare
* (interpreted as unsigned char).
*
* @param[in] size The first n bytes of the memory areas to compare.
*/
void assert_memory_equal(const void *a, const void *b, size_t size);
#else
#define assert_memory_equal(a, b, size) \
_assert_memory_equal((const void*)(a), (const void*)(b), size, __FILE__, \
__LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Assert that the two given areas of memory are not equal.
*
* The function prints an error message to standard error and terminates the
* test by calling fail() if the memory is equal.
*
* @param[in] a The first memory area to compare
* (interpreted as unsigned char).
*
* @param[in] b The second memory area to compare
* (interpreted as unsigned char).
*
* @param[in] size The first n bytes of the memory areas to compare.
*/
void assert_memory_not_equal(const void *a, const void *b, size_t size);
#else
#define assert_memory_not_equal(a, b, size) \
_assert_memory_not_equal((const void*)(a), (const void*)(b), size, \
__FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Assert that the specified value is not smaller than the minimum
* and and not greater than the maximum.
*
* The function prints an error message to standard error and terminates the
* test by calling fail() if value is not in range.
*
* @param[in] value The value to check.
*
* @param[in] minimum The minimum value allowed.
*
* @param[in] maximum The maximum value allowed.
*/
void assert_in_range(LargestIntegralType value, LargestIntegralType minimum, LargestIntegralType maximum);
#else
#define assert_in_range(value, minimum, maximum) \
_assert_in_range( \
cast_to_largest_integral_type(value), \
cast_to_largest_integral_type(minimum), \
cast_to_largest_integral_type(maximum), __FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Assert that the specified value is smaller than the minimum or
* greater than the maximum.
*
* The function prints an error message to standard error and terminates the
* test by calling fail() if value is in range.
*
* @param[in] value The value to check.
*
* @param[in] minimum The minimum value to compare.
*
* @param[in] maximum The maximum value to compare.
*/
void assert_not_in_range(LargestIntegralType value, LargestIntegralType minimum, LargestIntegralType maximum);
#else
#define assert_not_in_range(value, minimum, maximum) \
_assert_not_in_range( \
cast_to_largest_integral_type(value), \
cast_to_largest_integral_type(minimum), \
cast_to_largest_integral_type(maximum), __FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Assert that the specified value is within a set.
*
* The function prints an error message to standard error and terminates the
* test by calling fail() if value is not within a set.
*
* @param[in] value The value to look up
*
* @param[in] values[] The array to check for the value.
*
* @param[in] count The size of the values array.
*/
void assert_in_set(LargestIntegralType value, LargestIntegralType values[], size_t count);
#else
#define assert_in_set(value, values, number_of_values) \
_assert_in_set(value, values, number_of_values, __FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Assert that the specified value is not within a set.
*
* The function prints an error message to standard error and terminates the
* test by calling fail() if value is within a set.
*
* @param[in] value The value to look up
*
* @param[in] values[] The array to check for the value.
*
* @param[in] count The size of the values array.
*/
void assert_not_in_set(LargestIntegralType value, LargestIntegralType values[], size_t count);
#else
#define assert_not_in_set(value, values, number_of_values) \
_assert_not_in_set(value, values, number_of_values, __FILE__, __LINE__)
#endif
/** @} */
/**
* @defgroup cmocka_call_order Call Ordering
* @ingroup cmocka
*
* It is often beneficial to make sure that functions are called in an
* order. This is independent of mock returns and parameter checking as both
* of the aforementioned do not check the order in which they are called from
* different functions.
*
* <ul>
* <li><strong>expect_function_call(function)</strong> - The
* expect_function_call() macro pushes an expectation onto the stack of
* expected calls.</li>
*
* <li><strong>function_called()</strong> - pops a value from the stack of
* expected calls. function_called() is invoked within the mock object
* that uses it.
* </ul>
*
* expect_function_call() and function_called() are intended to be used in
* pairs. Cmocka will fail a test if there are more or less expected calls
* created (e.g. expect_function_call()) than consumed with function_called().
* There are provisions such as ignore_function_calls() which allow this
* restriction to be circumvented in tests where mock calls for the code under
* test are not the focus of the test.
*
* The following example illustrates how a unit test instructs cmocka
* to expect a function_called() from a particular mock,
* <strong>chef_sing()</strong>:
*
* @code
* void chef_sing(void);
*
* void code_under_test()
* {
* chef_sing();
* }
*
* void some_test(void **state)
* {
* expect_function_call(chef_sing);
* code_under_test();
* }
* @endcode
*
* The implementation of the mock then must check whether it was meant to
* be called by invoking <strong>function_called()</strong>:
*
* @code
* void chef_sing()
* {
* function_called();
* }
* @endcode
*
* @{
*/
#ifdef DOXYGEN
/**
* @brief Check that current mocked function is being called in the expected
* order
*
* @see expect_function_call()
*/
void function_called(void);
#else
#define function_called() _function_called(__func__, __FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Store expected call(s) to a mock to be checked by function_called()
* later.
*
* @param[in] #function The function which should should be called
*
* @param[in] times number of times this mock must be called
*
* @see function_called()
*/
void expect_function_calls(#function, const int times);
#else
#define expect_function_calls(function, times) \
_expect_function_call(#function, __FILE__, __LINE__, times)
#endif
#ifdef DOXYGEN
/**
* @brief Store expected single call to a mock to be checked by
* function_called() later.
*
* @param[in] #function The function which should should be called
*
* @see function_called()
*/
void expect_function_call(#function);
#else
#define expect_function_call(function) \
_expect_function_call(#function, __FILE__, __LINE__, 1)
#endif
#ifdef DOXYGEN
/**
* @brief Expects function_called() from given mock at least once
*
* @param[in] #function The function which should should be called
*
* @see function_called()
*/
void expect_function_call_any(#function);
#else
#define expect_function_call_any(function) \
_expect_function_call(#function, __FILE__, __LINE__, -1)
#endif
#ifdef DOXYGEN
/**
* @brief Ignores function_called() invocations from given mock function.
*
* @param[in] #function The function which should should be called
*
* @see function_called()
*/
void ignore_function_calls(#function);
#else
#define ignore_function_calls(function) \
_expect_function_call(#function, __FILE__, __LINE__, -2)
#endif
/** @} */
/**
* @defgroup cmocka_exec Running Tests
* @ingroup cmocka
*
* This is the way tests are executed with CMocka.
*
* The following example illustrates this macro's use with the unit_test macro.
*
* @code
* void Test0(void **state);
* void Test1(void **state);
*
* int main(void)
* {
* const struct CMUnitTest tests[] = {
* cmocka_unit_test(Test0),
* cmocka_unit_test(Test1),
* };
*
* return cmocka_run_group_tests(tests, NULL, NULL);
* }
* @endcode
*
* @{
*/
#ifdef DOXYGEN
/**
* @brief Forces the test to fail immediately and quit.
*/
void fail(void);
#else
#define fail() _fail(__FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Forces the test to not be executed, but marked as skipped
*/
void skip(void);
#else
#define skip() _skip(__FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Forces the test to fail immediately and quit, printing the reason.
*
* @code
* fail_msg("This is some error message for test");
* @endcode
*
* or
*
* @code
* char *error_msg = "This is some error message for test";
* fail_msg("%s", error_msg);
* @endcode
*/
void fail_msg(const char *msg, ...);
#else
#define fail_msg(msg, ...) do { \
print_error("ERROR: " msg "\n", ##__VA_ARGS__); \
fail(); \
} while (0)
#endif
#ifdef DOXYGEN
/**
* @brief Generic method to run a single test.
*
* @deprecated This function was deprecated in favor of cmocka_run_group_tests
*
* @param[in] #function The function to test.
*
* @return 0 on success, 1 if an error occured.
*
* @code
* // A test case that does nothing and succeeds.
* void null_test_success(void **state) {
* }
*
* int main(void) {
* return run_test(null_test_success);
* }
* @endcode
*/
int run_test(#function);
#else
#define run_test(f) _run_test(#f, f, NULL, UNIT_TEST_FUNCTION_TYPE_TEST, NULL)
#endif
static inline void _unit_test_dummy(void **state) {
(void)state;
}
/** Initializes a UnitTest structure.
*
* @deprecated This function was deprecated in favor of cmocka_unit_test
*/
#define unit_test(f) { #f, f, UNIT_TEST_FUNCTION_TYPE_TEST }
#define _unit_test_setup(test, setup) \
{ #test "_" #setup, setup, UNIT_TEST_FUNCTION_TYPE_SETUP }
/** Initializes a UnitTest structure with a setup function.
*
* @deprecated This function was deprecated in favor of cmocka_unit_test_setup
*/
#define unit_test_setup(test, setup) \
_unit_test_setup(test, setup), \
unit_test(test), \
_unit_test_teardown(test, _unit_test_dummy)
#define _unit_test_teardown(test, teardown) \
{ #test "_" #teardown, teardown, UNIT_TEST_FUNCTION_TYPE_TEARDOWN }
/** Initializes a UnitTest structure with a teardown function.
*
* @deprecated This function was deprecated in favor of cmocka_unit_test_teardown
*/
#define unit_test_teardown(test, teardown) \
_unit_test_setup(test, _unit_test_dummy), \
unit_test(test), \
_unit_test_teardown(test, teardown)
/** Initializes a UnitTest structure for a group setup function.
*
* @deprecated This function was deprecated in favor of cmocka_run_group_tests
*/
#define group_test_setup(setup) \
{ "group_" #setup, setup, UNIT_TEST_FUNCTION_TYPE_GROUP_SETUP }
/** Initializes a UnitTest structure for a group teardown function.
*
* @deprecated This function was deprecated in favor of cmocka_run_group_tests
*/
#define group_test_teardown(teardown) \
{ "group_" #teardown, teardown, UNIT_TEST_FUNCTION_TYPE_GROUP_TEARDOWN }
/**
* Initialize an array of UnitTest structures with a setup function for a test
* and a teardown function. Either setup or teardown can be NULL.
*
* @deprecated This function was deprecated in favor of
* cmocka_unit_test_setup_teardown
*/
#define unit_test_setup_teardown(test, setup, teardown) \
_unit_test_setup(test, setup), \
unit_test(test), \
_unit_test_teardown(test, teardown)
/** Initializes a CMUnitTest structure. */
#define cmocka_unit_test(f) { #f, f, NULL, NULL, NULL }
/** Initializes a CMUnitTest structure with a setup function. */
#define cmocka_unit_test_setup(f, setup) { #f, f, setup, NULL, NULL }
/** Initializes a CMUnitTest structure with a teardown function. */
#define cmocka_unit_test_teardown(f, teardown) { #f, f, NULL, teardown, NULL }
/**
* Initialize an array of CMUnitTest structures with a setup function for a test
* and a teardown function. Either setup or teardown can be NULL.
*/
#define cmocka_unit_test_setup_teardown(f, setup, teardown) { #f, f, setup, teardown, NULL }
/**
* Initialize a CMUnitTest structure with given initial state. It will be passed
* to test function as an argument later. It can be used when test state does
* not need special initialization or was initialized already.
* @note If the group setup function initialized the state already, it won't be
* overridden by the initial state defined here.
*/
#define cmocka_unit_test_prestate(f, state) { #f, f, NULL, NULL, state }
/**
* Initialize a CMUnitTest structure with given initial state, setup and
* teardown function. Any of these values can be NULL. Initial state is passed
* later to setup function, or directly to test if none was given.
* @note If the group setup function initialized the state already, it won't be
* overridden by the initial state defined here.
*/
#define cmocka_unit_test_prestate_setup_teardown(f, setup, teardown, state) { #f, f, setup, teardown, state }
#define run_tests(tests) _run_tests(tests, sizeof(tests) / sizeof(tests)[0])
#define run_group_tests(tests) _run_group_tests(tests, sizeof(tests) / sizeof(tests)[0])
#ifdef DOXYGEN
/**
* @brief Run tests specified by an array of CMUnitTest structures.
*
* @param[in] group_tests[] The array of unit tests to execute.
*
* @param[in] group_setup The setup function which should be called before
* all unit tests are executed.
*
* @param[in] group_teardown The teardown function to be called after all
* tests have finished.
*
* @return 0 on success, or the number of failed tests.
*
* @code
* static int setup(void **state) {
* int *answer = malloc(sizeof(int));
* if (*answer == NULL) {
* return -1;
* }
* *answer = 42;
*
* *state = answer;
*
* return 0;
* }
*
* static int teardown(void **state) {
* free(*state);
*
* return 0;
* }
*
* static void null_test_success(void **state) {
* (void) state;
* }
*
* static void int_test_success(void **state) {
* int *answer = *state;
* assert_int_equal(*answer, 42);
* }
*
* int main(void) {
* const struct CMUnitTest tests[] = {
* cmocka_unit_test(null_test_success),
* cmocka_unit_test_setup_teardown(int_test_success, setup, teardown),
* };
*
* return cmocka_run_group_tests(tests, NULL, NULL);
* }
* @endcode
*
* @see cmocka_unit_test
* @see cmocka_unit_test_setup
* @see cmocka_unit_test_teardown
* @see cmocka_unit_test_setup_teardown
*/
int cmocka_run_group_tests(const struct CMUnitTest group_tests[],
CMFixtureFunction group_setup,
CMFixtureFunction group_teardown);
#else
# define cmocka_run_group_tests(group_tests, group_setup, group_teardown) \
_cmocka_run_group_tests(#group_tests, group_tests, sizeof(group_tests) / sizeof(group_tests)[0], group_setup, group_teardown)
#endif
#ifdef DOXYGEN
/**
* @brief Run tests specified by an array of CMUnitTest structures and specify
* a name.
*
* @param[in] group_name The name of the group test.
*
* @param[in] group_tests[] The array of unit tests to execute.
*
* @param[in] group_setup The setup function which should be called before
* all unit tests are executed.
*
* @param[in] group_teardown The teardown function to be called after all
* tests have finished.
*
* @return 0 on success, or the number of failed tests.
*
* @code
* static int setup(void **state) {
* int *answer = malloc(sizeof(int));
* if (*answer == NULL) {
* return -1;
* }
* *answer = 42;
*
* *state = answer;
*
* return 0;
* }
*
* static int teardown(void **state) {
* free(*state);
*
* return 0;
* }
*
* static void null_test_success(void **state) {
* (void) state;
* }
*
* static void int_test_success(void **state) {
* int *answer = *state;
* assert_int_equal(*answer, 42);
* }
*
* int main(void) {
* const struct CMUnitTest tests[] = {
* cmocka_unit_test(null_test_success),
* cmocka_unit_test_setup_teardown(int_test_success, setup, teardown),
* };
*
* return cmocka_run_group_tests_name("success_test", tests, NULL, NULL);
* }
* @endcode
*
* @see cmocka_unit_test
* @see cmocka_unit_test_setup
* @see cmocka_unit_test_teardown
* @see cmocka_unit_test_setup_teardown
*/
int cmocka_run_group_tests_name(const char *group_name,
const struct CMUnitTest group_tests[],
CMFixtureFunction group_setup,
CMFixtureFunction group_teardown);
#else
# define cmocka_run_group_tests_name(group_name, group_tests, group_setup, group_teardown) \
_cmocka_run_group_tests(group_name, group_tests, sizeof(group_tests) / sizeof(group_tests)[0], group_setup, group_teardown)
#endif
/** @} */
/**
* @defgroup cmocka_alloc Dynamic Memory Allocation
* @ingroup cmocka
*
* Memory leaks, buffer overflows and underflows can be checked using cmocka.
*
* To test for memory leaks, buffer overflows and underflows a module being
* tested by cmocka should replace calls to malloc(), calloc() and free() to
* test_malloc(), test_calloc() and test_free() respectively. Each time a block
* is deallocated using test_free() it is checked for corruption, if a corrupt
* block is found a test failure is signalled. All blocks allocated using the
* test_*() allocation functions are tracked by the cmocka library. When a test
* completes if any allocated blocks (memory leaks) remain they are reported
* and a test failure is signalled.
*
* For simplicity cmocka currently executes all tests in one process. Therefore
* all test cases in a test application share a single address space which
* means memory corruption from a single test case could potentially cause the
* test application to exit prematurely.
*
* @{
*/
#ifdef DOXYGEN
/**
* @brief Test function overriding malloc.
*
* @param[in] size The bytes which should be allocated.
*
* @return A pointer to the allocated memory or NULL on error.
*
* @code
* #ifdef UNIT_TESTING
* extern void* _test_malloc(const size_t size, const char* file, const int line);
*
* #define malloc(size) _test_malloc(size, __FILE__, __LINE__)
* #endif
*
* void leak_memory() {
* int * const temporary = (int*)malloc(sizeof(int));
* *temporary = 0;
* }
* @endcode
*
* @see malloc(3)
*/
void *test_malloc(size_t size);
#else
#define test_malloc(size) _test_malloc(size, __FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Test function overriding calloc.
*
* The memory is set to zero.
*
* @param[in] nmemb The number of elements for an array to be allocated.
*
* @param[in] size The size in bytes of each array element to allocate.
*
* @return A pointer to the allocated memory, NULL on error.
*
* @see calloc(3)
*/
void *test_calloc(size_t nmemb, size_t size);
#else
#define test_calloc(num, size) _test_calloc(num, size, __FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Test function overriding realloc which detects buffer overruns
* and memoery leaks.
*
* @param[in] ptr The memory block which should be changed.
*
* @param[in] size The bytes which should be allocated.
*
* @return The newly allocated memory block, NULL on error.
*/
void *test_realloc(void *ptr, size_t size);
#else
#define test_realloc(ptr, size) _test_realloc(ptr, size, __FILE__, __LINE__)
#endif
#ifdef DOXYGEN
/**
* @brief Test function overriding free(3).
*
* @param[in] ptr The pointer to the memory space to free.
*
* @see free(3).
*/
void test_free(void *ptr);
#else
#define test_free(ptr) _test_free(ptr, __FILE__, __LINE__)
#endif
/* Redirect malloc, calloc and free to the unit test allocators. */
#ifdef UNIT_TESTING
#define malloc test_malloc
#define realloc test_realloc
#define calloc test_calloc
#define free test_free
#endif /* UNIT_TESTING */
/** @} */
/**
* @defgroup cmocka_mock_assert Standard Assertions
* @ingroup cmocka
*
* How to handle assert(3) of the standard C library.
*
* Runtime assert macros like the standard C library's assert() should be
* redefined in modules being tested to use cmocka's mock_assert() function.
* Normally mock_assert() signals a test failure. If a function is called using
* the expect_assert_failure() macro, any calls to mock_assert() within the
* function will result in the execution of the test. If no calls to
* mock_assert() occur during the function called via expect_assert_failure() a
* test failure is signalled.
*
* @{
*/
/**
* @brief Function to replace assert(3) in tested code.
*
* In conjuction with check_assert() it's possible to determine whether an
* assert condition has failed without stopping a test.
*
* @param[in] result The expression to assert.
*
* @param[in] expression The expression as string.
*
* @param[in] file The file mock_assert() is called.
*
* @param[in] line The line mock_assert() is called.
*
* @code
* #ifdef UNIT_TESTING
* extern void mock_assert(const int result, const char* const expression,
* const char * const file, const int line);
*
* #undef assert
* #define assert(expression) \
* mock_assert((int)(expression), #expression, __FILE__, __LINE__);
* #endif
*
* void increment_value(int * const value) {
* assert(value);
* (*value) ++;
* }
* @endcode
*
* @see assert(3)
* @see expect_assert_failure
*/
void mock_assert(const int result, const char* const expression,
const char * const file, const int line);
#ifdef DOXYGEN
/**
* @brief Ensure that mock_assert() is called.
*
* If mock_assert() is called the assert expression string is returned.
*
* @param[in] fn_call The function will will call mock_assert().
*
* @code
* #define assert mock_assert
*
* void showmessage(const char *message) {
* assert(message);
* }
*
* int main(int argc, const char* argv[]) {
* expect_assert_failure(show_message(NULL));
* printf("succeeded\n");
* return 0;
* }
* @endcode
*
*/
void expect_assert_failure(function fn_call);
#else
#define expect_assert_failure(function_call) \
{ \
const int result = setjmp(global_expect_assert_env); \
global_expecting_assert = 1; \
if (result) { \
print_message("Expected assertion %s occurred\n", \
global_last_failed_assert); \
global_expecting_assert = 0; \
} else { \
function_call ; \
global_expecting_assert = 0; \
print_error("Expected assert in %s\n", #function_call); \
_fail(__FILE__, __LINE__); \
} \
}
#endif
/** @} */
/* Function prototype for setup, test and teardown functions. */
typedef void (*UnitTestFunction)(void **state);
/* Function that determines whether a function parameter value is correct. */
typedef int (*CheckParameterValue)(const LargestIntegralType value,
const LargestIntegralType check_value_data);
/* Type of the unit test function. */
typedef enum UnitTestFunctionType {
UNIT_TEST_FUNCTION_TYPE_TEST = 0,
UNIT_TEST_FUNCTION_TYPE_SETUP,
UNIT_TEST_FUNCTION_TYPE_TEARDOWN,
UNIT_TEST_FUNCTION_TYPE_GROUP_SETUP,
UNIT_TEST_FUNCTION_TYPE_GROUP_TEARDOWN,
} UnitTestFunctionType;
/*
* Stores a unit test function with its name and type.
* NOTE: Every setup function must be paired with a teardown function. It's
* possible to specify NULL function pointers.
*/
typedef struct UnitTest {
const char* name;
UnitTestFunction function;
UnitTestFunctionType function_type;
} UnitTest;
typedef struct GroupTest {
UnitTestFunction setup;
UnitTestFunction teardown;
const UnitTest *tests;
const size_t number_of_tests;
} GroupTest;
/* Function prototype for test functions. */
typedef void (*CMUnitTestFunction)(void **state);
/* Function prototype for setup and teardown functions. */
typedef int (*CMFixtureFunction)(void **state);
struct CMUnitTest {
const char *name;
CMUnitTestFunction test_func;
CMFixtureFunction setup_func;
CMFixtureFunction teardown_func;
void *initial_state;
};
/* Location within some source code. */
typedef struct SourceLocation {
const char* file;
int line;
} SourceLocation;
/* Event that's called to check a parameter value. */
typedef struct CheckParameterEvent {
SourceLocation location;
const char *parameter_name;
CheckParameterValue check_value;
LargestIntegralType check_value_data;
} CheckParameterEvent;
/* Used by expect_assert_failure() and mock_assert(). */
extern int global_expecting_assert;
extern jmp_buf global_expect_assert_env;
extern const char * global_last_failed_assert;
/* Retrieves a value for the given function, as set by "will_return". */
LargestIntegralType _mock(const char * const function, const char* const file,
const int line);
void _expect_function_call(
const char * const function_name,
const char * const file,
const int line,
const int count);
void _function_called(const char * const function, const char* const file,
const int line);
void _expect_check(
const char* const function, const char* const parameter,
const char* const file, const int line,
const CheckParameterValue check_function,
const LargestIntegralType check_data, CheckParameterEvent * const event,
const int count);
void _expect_in_set(
const char* const function, const char* const parameter,
const char* const file, const int line, const LargestIntegralType values[],
const size_t number_of_values, const int count);
void _expect_not_in_set(
const char* const function, const char* const parameter,
const char* const file, const int line, const LargestIntegralType values[],
const size_t number_of_values, const int count);
void _expect_in_range(
const char* const function, const char* const parameter,
const char* const file, const int line,
const LargestIntegralType minimum,
const LargestIntegralType maximum, const int count);
void _expect_not_in_range(
const char* const function, const char* const parameter,
const char* const file, const int line,
const LargestIntegralType minimum,
const LargestIntegralType maximum, const int count);
void _expect_value(
const char* const function, const char* const parameter,
const char* const file, const int line, const LargestIntegralType value,
const int count);
void _expect_not_value(
const char* const function, const char* const parameter,
const char* const file, const int line, const LargestIntegralType value,
const int count);
void _expect_string(
const char* const function, const char* const parameter,
const char* const file, const int line, const char* string,
const int count);
void _expect_not_string(
const char* const function, const char* const parameter,
const char* const file, const int line, const char* string,
const int count);
void _expect_memory(
const char* const function, const char* const parameter,
const char* const file, const int line, const void* const memory,
const size_t size, const int count);
void _expect_not_memory(
const char* const function, const char* const parameter,
const char* const file, const int line, const void* const memory,
const size_t size, const int count);
void _expect_any(
const char* const function, const char* const parameter,
const char* const file, const int line, const int count);
void _check_expected(
const char * const function_name, const char * const parameter_name,
const char* file, const int line, const LargestIntegralType value);
void _will_return(const char * const function_name, const char * const file,
const int line, const LargestIntegralType value,
const int count);
void _assert_true(const LargestIntegralType result,
const char* const expression,
const char * const file, const int line);
void _assert_return_code(const LargestIntegralType result,
size_t rlen,
const LargestIntegralType error,
const char * const expression,
const char * const file,
const int line);
void _assert_int_equal(
const LargestIntegralType a, const LargestIntegralType b,
const char * const file, const int line);
void _assert_int_not_equal(
const LargestIntegralType a, const LargestIntegralType b,
const char * const file, const int line);
void _assert_string_equal(const char * const a, const char * const b,
const char * const file, const int line);
void _assert_string_not_equal(const char * const a, const char * const b,
const char *file, const int line);
void _assert_memory_equal(const void * const a, const void * const b,
const size_t size, const char* const file,
const int line);
void _assert_memory_not_equal(const void * const a, const void * const b,
const size_t size, const char* const file,
const int line);
void _assert_in_range(
const LargestIntegralType value, const LargestIntegralType minimum,
const LargestIntegralType maximum, const char* const file, const int line);
void _assert_not_in_range(
const LargestIntegralType value, const LargestIntegralType minimum,
const LargestIntegralType maximum, const char* const file, const int line);
void _assert_in_set(
const LargestIntegralType value, const LargestIntegralType values[],
const size_t number_of_values, const char* const file, const int line);
void _assert_not_in_set(
const LargestIntegralType value, const LargestIntegralType values[],
const size_t number_of_values, const char* const file, const int line);
void* _test_malloc(const size_t size, const char* file, const int line);
void* _test_realloc(void *ptr, const size_t size, const char* file, const int line);
void* _test_calloc(const size_t number_of_elements, const size_t size,
const char* file, const int line);
void _test_free(void* const ptr, const char* file, const int line);
void _fail(const char * const file, const int line);
void _skip(const char * const file, const int line);
int _run_test(
const char * const function_name, const UnitTestFunction Function,
void ** const volatile state, const UnitTestFunctionType function_type,
const void* const heap_check_point);
CMOCKA_DEPRECATED int _run_tests(const UnitTest * const tests,
const size_t number_of_tests);
CMOCKA_DEPRECATED int _run_group_tests(const UnitTest * const tests,
const size_t number_of_tests);
/* Test runner */
int _cmocka_run_group_tests(const char *group_name,
const struct CMUnitTest * const tests,
const size_t num_tests,
CMFixtureFunction group_setup,
CMFixtureFunction group_teardown);
/* Standard output and error print methods. */
void print_message(const char* const format, ...) CMOCKA_PRINTF_ATTRIBUTE(1, 2);
void print_error(const char* const format, ...) CMOCKA_PRINTF_ATTRIBUTE(1, 2);
void vprint_message(const char* const format, va_list args) CMOCKA_PRINTF_ATTRIBUTE(1, 0);
void vprint_error(const char* const format, va_list args) CMOCKA_PRINTF_ATTRIBUTE(1, 0);
enum cm_message_output {
CM_OUTPUT_STDOUT,
CM_OUTPUT_SUBUNIT,
CM_OUTPUT_TAP,
CM_OUTPUT_XML,
};
/**
* @brief Function to set the output format for a test.
*
* The ouput format for the test can either be set globally using this
* function or overriden with environment variable CMOCKA_MESSAGE_OUTPUT.
*
* The environment variable can be set to either STDOUT, SUBUNIT, TAP or XML.
*
* @param[in] output The output format to use for the test.
*
*/
void cmocka_set_message_output(enum cm_message_output output);
/** @} */
#endif /* CMOCKA_H_ */
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