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New macro ASSERT_COMPARE to compare two buffers

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ASSERT_COMPARE tests that the two buffers have the same size and
content. The intended use is to replace TEST_ASSERT( size1 == size2 )
followed by memcmp on the content. Keep using memcmp when comparing
two buffers that have the same size by construction.
This commit is contained in:
Gilles Peskine 2018-09-27 13:56:31 +02:00
parent 8cebbba7e6
commit 3c22596d9b
1 changed files with 21 additions and 0 deletions
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21
tests/suites/helpers.function
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@ -121,6 +121,27 @@ typedef struct data_tag
} \
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_ASSERT( ( size1 ) == ( size2 ) ); \
if( ( size1 ) != 0 ) \
TEST_ASSERT( memcmp( ( p1 ), ( p2 ), ( size1 ) ) == 0 ); \
} \
while( 0 )
#define assert(a) if( !( a ) ) \
{ \
mbedtls_fprintf( stderr, "Assertion Failed at %s:%d - %s\n", \