New macro ASSERT_COMPARE to compare two buffers
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.
diff --git a/tests/suites/helpers.function b/tests/suites/helpers.function
index 0a4cf87..f416b30 100644
--- a/tests/suites/helpers.function
+++ b/tests/suites/helpers.function
@@ -121,6 +121,27 @@
} \
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", \