279 lines
12 KiB
C
279 lines
12 KiB
C
/**
|
|
* \file macros.h
|
|
*
|
|
* \brief This file contains generic macros for the purpose of testing.
|
|
*/
|
|
|
|
/*
|
|
* Copyright The Mbed TLS Contributors
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* 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 TEST_MACROS_H
|
|
#define TEST_MACROS_H
|
|
|
|
#include "mbedtls/build_info.h"
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include "mbedtls/platform.h"
|
|
|
|
#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
|
|
#include "mbedtls/memory_buffer_alloc.h"
|
|
#endif
|
|
|
|
/**
|
|
* \brief This macro tests the expression passed to it as a test step or
|
|
* individual test in a test case.
|
|
*
|
|
* It allows a library function to return a value and return an error
|
|
* code that can be tested.
|
|
*
|
|
* Failing the test means:
|
|
* - Mark this test case as failed.
|
|
* - Print a message identifying the failure.
|
|
* - Jump to the \c exit label.
|
|
*
|
|
* This macro expands to an instruction, not an expression.
|
|
* It may jump to the \c exit label.
|
|
*
|
|
* \param TEST The test expression to be tested.
|
|
*/
|
|
#define TEST_ASSERT(TEST) \
|
|
do { \
|
|
if (!(TEST)) \
|
|
{ \
|
|
mbedtls_test_fail( #TEST, __LINE__, __FILE__); \
|
|
goto exit; \
|
|
} \
|
|
} while (0)
|
|
|
|
/** Evaluate two integer expressions and fail the test case if they have
|
|
* different values.
|
|
*
|
|
* The two expressions should have the same signedness, otherwise the
|
|
* comparison is not meaningful if the signed value is negative.
|
|
*
|
|
* \param expr1 An integral-typed expression to evaluate.
|
|
* \param expr2 Another integral-typed expression to evaluate.
|
|
*/
|
|
#define TEST_EQUAL(expr1, expr2) \
|
|
do { \
|
|
if (!mbedtls_test_equal( #expr1 " == " #expr2, __LINE__, __FILE__, \
|
|
expr1, expr2)) \
|
|
goto exit; \
|
|
} while (0)
|
|
|
|
/** Evaluate two unsigned integer expressions and fail the test case
|
|
* if they are not in increasing order (left <= right).
|
|
*
|
|
* \param expr1 An integral-typed expression to evaluate.
|
|
* \param expr2 Another integral-typed expression to evaluate.
|
|
*/
|
|
#define TEST_LE_U(expr1, expr2) \
|
|
do { \
|
|
if (!mbedtls_test_le_u( #expr1 " <= " #expr2, __LINE__, __FILE__, \
|
|
expr1, expr2)) \
|
|
goto exit; \
|
|
} while (0)
|
|
|
|
/** Evaluate two signed integer expressions and fail the test case
|
|
* if they are not in increasing order (left <= right).
|
|
*
|
|
* \param expr1 An integral-typed expression to evaluate.
|
|
* \param expr2 Another integral-typed expression to evaluate.
|
|
*/
|
|
#define TEST_LE_S(expr1, expr2) \
|
|
do { \
|
|
if (!mbedtls_test_le_s( #expr1 " <= " #expr2, __LINE__, __FILE__, \
|
|
expr1, expr2)) \
|
|
goto exit; \
|
|
} while (0)
|
|
|
|
/** Allocate memory dynamically and fail the test case if this fails.
|
|
* The allocated memory will be filled with zeros.
|
|
*
|
|
* You must set \p pointer to \c NULL before calling this macro and
|
|
* put `mbedtls_free( pointer )` in the test's cleanup code.
|
|
*
|
|
* If \p length is zero, the resulting \p pointer will be \c NULL.
|
|
* This is usually what we want in tests since API functions are
|
|
* supposed to accept null pointers when a buffer size is zero.
|
|
*
|
|
* This macro expands to an instruction, not an expression.
|
|
* It may jump to the \c exit label.
|
|
*
|
|
* \param pointer An lvalue where the address of the allocated buffer
|
|
* will be stored.
|
|
* This expression may be evaluated multiple times.
|
|
* \param length Number of elements to allocate.
|
|
* This expression may be evaluated multiple times.
|
|
*
|
|
*/
|
|
#define ASSERT_ALLOC(pointer, length) \
|
|
do \
|
|
{ \
|
|
TEST_ASSERT((pointer) == NULL); \
|
|
if ((length) != 0) \
|
|
{ \
|
|
(pointer) = mbedtls_calloc(sizeof(*(pointer)), \
|
|
(length)); \
|
|
TEST_ASSERT((pointer) != NULL); \
|
|
} \
|
|
} \
|
|
while (0)
|
|
|
|
/** Allocate memory dynamically. If the allocation fails, skip the test case.
|
|
*
|
|
* This macro behaves like #ASSERT_ALLOC, except that if the allocation
|
|
* fails, it marks the test as skipped rather than failed.
|
|
*/
|
|
#define ASSERT_ALLOC_WEAK(pointer, length) \
|
|
do \
|
|
{ \
|
|
TEST_ASSERT((pointer) == NULL); \
|
|
if ((length) != 0) \
|
|
{ \
|
|
(pointer) = mbedtls_calloc(sizeof(*(pointer)), \
|
|
(length)); \
|
|
TEST_ASSUME((pointer) != NULL); \
|
|
} \
|
|
} \
|
|
while (0)
|
|
|
|
/** Compare two buffers and fail the test case if they differ.
|
|
*
|
|
* This macro expands to an instruction, not an expression.
|
|
* It may jump to the \c exit label.
|
|
*
|
|
* \param p1 Pointer to the start of the first buffer.
|
|
* \param size1 Size of the first buffer in bytes.
|
|
* This expression may be evaluated multiple times.
|
|
* \param p2 Pointer to the start of the second buffer.
|
|
* \param size2 Size of the second buffer in bytes.
|
|
* This expression may be evaluated multiple times.
|
|
*/
|
|
#define ASSERT_COMPARE(p1, size1, p2, size2) \
|
|
do \
|
|
{ \
|
|
TEST_EQUAL((size1), (size2)); \
|
|
if ((size1) != 0) \
|
|
TEST_ASSERT(memcmp((p1), (p2), (size1)) == 0); \
|
|
} \
|
|
while (0)
|
|
|
|
/**
|
|
* \brief This macro tests the expression passed to it and skips the
|
|
* running test if it doesn't evaluate to 'true'.
|
|
*
|
|
* \param TEST The test expression to be tested.
|
|
*/
|
|
#define TEST_ASSUME(TEST) \
|
|
do { \
|
|
if (!(TEST)) \
|
|
{ \
|
|
mbedtls_test_skip( #TEST, __LINE__, __FILE__); \
|
|
goto exit; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define TEST_HELPER_ASSERT(a) if (!(a)) \
|
|
{ \
|
|
mbedtls_fprintf(stderr, "Assertion Failed at %s:%d - %s\n", \
|
|
__FILE__, __LINE__, #a); \
|
|
mbedtls_exit(1); \
|
|
}
|
|
|
|
/** \def ARRAY_LENGTH
|
|
* Return the number of elements of a static or stack array.
|
|
*
|
|
* \param array A value of array (not pointer) type.
|
|
*
|
|
* \return The number of elements of the array.
|
|
*/
|
|
/* A correct implementation of ARRAY_LENGTH, but which silently gives
|
|
* a nonsensical result if called with a pointer rather than an array. */
|
|
#define ARRAY_LENGTH_UNSAFE(array) \
|
|
(sizeof(array) / sizeof(*(array)))
|
|
|
|
#if defined(__GNUC__)
|
|
/* Test if arg and &(arg)[0] have the same type. This is true if arg is
|
|
* an array but not if it's a pointer. */
|
|
#define IS_ARRAY_NOT_POINTER(arg) \
|
|
(!__builtin_types_compatible_p(__typeof__(arg), \
|
|
__typeof__(&(arg)[0])))
|
|
/* A compile-time constant with the value 0. If `const_expr` is not a
|
|
* compile-time constant with a nonzero value, cause a compile-time error. */
|
|
#define STATIC_ASSERT_EXPR(const_expr) \
|
|
(0 && sizeof(struct { unsigned int STATIC_ASSERT : 1 - 2 * !(const_expr); }))
|
|
|
|
/* Return the scalar value `value` (possibly promoted). This is a compile-time
|
|
* constant if `value` is. `condition` must be a compile-time constant.
|
|
* If `condition` is false, arrange to cause a compile-time error. */
|
|
#define STATIC_ASSERT_THEN_RETURN(condition, value) \
|
|
(STATIC_ASSERT_EXPR(condition) ? 0 : (value))
|
|
|
|
#define ARRAY_LENGTH(array) \
|
|
(STATIC_ASSERT_THEN_RETURN(IS_ARRAY_NOT_POINTER(array), \
|
|
ARRAY_LENGTH_UNSAFE(array)))
|
|
|
|
#else
|
|
/* If we aren't sure the compiler supports our non-standard tricks,
|
|
* fall back to the unsafe implementation. */
|
|
#define ARRAY_LENGTH(array) ARRAY_LENGTH_UNSAFE(array)
|
|
#endif
|
|
|
|
/** Return the smaller of two values.
|
|
*
|
|
* \param x An integer-valued expression without side effects.
|
|
* \param y An integer-valued expression without side effects.
|
|
*
|
|
* \return The smaller of \p x and \p y.
|
|
*/
|
|
#define MIN(x, y) ((x) < (y) ? (x) : (y))
|
|
|
|
/** Return the larger of two values.
|
|
*
|
|
* \param x An integer-valued expression without side effects.
|
|
* \param y An integer-valued expression without side effects.
|
|
*
|
|
* \return The larger of \p x and \p y.
|
|
*/
|
|
#define MAX(x, y) ((x) > (y) ? (x) : (y))
|
|
|
|
/*
|
|
* 32-bit integer manipulation macros (big endian)
|
|
*/
|
|
#ifndef GET_UINT32_BE
|
|
#define GET_UINT32_BE(n, b, i) \
|
|
{ \
|
|
(n) = ((uint32_t) (b)[(i)] << 24) \
|
|
| ((uint32_t) (b)[(i) + 1] << 16) \
|
|
| ((uint32_t) (b)[(i) + 2] << 8) \
|
|
| ((uint32_t) (b)[(i) + 3]); \
|
|
}
|
|
#endif
|
|
|
|
#ifndef PUT_UINT32_BE
|
|
#define PUT_UINT32_BE(n, b, i) \
|
|
{ \
|
|
(b)[(i)] = (unsigned char) ((n) >> 24); \
|
|
(b)[(i) + 1] = (unsigned char) ((n) >> 16); \
|
|
(b)[(i) + 2] = (unsigned char) ((n) >> 8); \
|
|
(b)[(i) + 3] = (unsigned char) ((n)); \
|
|
}
|
|
#endif
|
|
|
|
#endif /* TEST_MACROS_H */
|