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Test MPS reader when reclaim fails because the acc is too small

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Signed-off-by: Hanno Becker <hanno.becker@arm.com>
This commit is contained in:
Hanno Becker 2021-02-08 06:52:21 +00:00
parent bc64f945e4
commit 014f683ca9
1 changed files with 14 additions and 1 deletions
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15
tests/suites/test_suite_mps.function
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@ -245,12 +245,19 @@ void mbedtls_mps_reader_pausing_needed_buffer_too_small()
* current read buffer, _and_ the reader's accumulator is too small to
* hold the requested amount of data.
*
* In this case, we expect the reader to fail. */
* In this case, we expect mbedtls_mps_reader_reclaim() to fail,
* but it should be possible to continue fetching data as if
* there had been no excess request via mbedtls_mps_reader_get()
* and the call to mbedtls_mps_reader_reclaim() had been rejected
* because of data remaining.
*/
unsigned char buf[100];
unsigned char acc[10];
unsigned char *tmp;
mbedtls_mps_reader rd;
mbedtls_mps_size_t tmp_len;
for( int i=0; (unsigned) i < sizeof( buf ); i++ )
buf[i] = (unsigned char) i;
@ -261,11 +268,17 @@ void mbedtls_mps_reader_pausing_needed_buffer_too_small()
TEST_ASSERT( mbedtls_mps_reader_get( &rd, 50, &tmp, NULL ) == 0 );
ASSERT_COMPARE( tmp, 50, buf, 50 );
TEST_ASSERT( mbedtls_mps_reader_commit( &rd ) == 0 );
TEST_ASSERT( mbedtls_mps_reader_get( &rd, 10, &tmp, NULL ) == 0 );
ASSERT_COMPARE( tmp, 10, buf + 50, 10 );
TEST_ASSERT( mbedtls_mps_reader_get( &rd, 100, &tmp, NULL ) ==
MBEDTLS_ERR_MPS_READER_OUT_OF_DATA );
/* Wrapup (lower layer) */
TEST_ASSERT( mbedtls_mps_reader_reclaim( &rd, NULL ) ==
MBEDTLS_ERR_MPS_READER_ACCUMULATOR_TOO_SMALL );
TEST_ASSERT( mbedtls_mps_reader_get( &rd, 50, &tmp, &tmp_len ) == 0 );
ASSERT_COMPARE( tmp, tmp_len, buf + 50, 50 );
mbedtls_mps_reader_free( &rd );
}
/* END_CASE */