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MPS Reader Tests: Add test for feed-{get,get,...}-commit-reclaim

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Signed-off-by: Hanno Becker <hanno.becker@arm.com>
This commit is contained in:
Hanno Becker 2021-01-12 08:01:16 +00:00
parent 0e4edfc083
commit dbd8a96487
2 changed files with 55 additions and 0 deletions
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6
tests/suites/test_suite_mps.data
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@ -9,3 +9,9 @@ mbedtls_mps_reader_no_pausing_single_step_multiple_rounds:0
MPS Reader: Single step, multiple rounds, pausing enabled but unused
mbedtls_mps_reader_no_pausing_single_step_multiple_rounds:1
MPS Reader: Multiple steps, single round, pausing disabled
mbedtls_mps_reader_no_pausing_multiple_steps_single_round:0
MPS Reader: Multiple steps, single round, pausing enabled but unused
mbedtls_mps_reader_no_pausing_multiple_steps_single_round:1

49
tests/suites/test_suite_mps.function
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@ -111,3 +111,52 @@ void mbedtls_mps_reader_no_pausing_single_step_multiple_rounds( int with_acc )
mbedtls_reader_free( &rd );
}
/* END_CASE */
/* BEGIN_CASE depends_on:TEST_SUITE_MPS_READER */
void mbedtls_mps_reader_no_pausing_multiple_steps_single_round( int with_acc )
{
/* This test exercises one round of the following:
* - The 'producing' layer provides a buffer
* - The 'consuming' layer fetches it in multiple calls
* to `mbedtls_reader_get()`, without comitting in between.
* - After processing, the consuming layer commit the data
* and returns back to the producing layer.
*
* Parameters:
* - with_acc: 0 if the reader should be initialized without accumulator.
* 1 if the reader should be initialized with accumulator.
*
* Whether the accumulator is present or not should not matter,
* since the consumer's request can be fulfilled from the data
* that the producer has provided.
*/
/* Lower layer provides data that the upper layer fully consumes
* through multiple `get` calls. */
unsigned char buf[100];
unsigned char acc[10];
unsigned char *tmp;
mbedtls_mps_size_t tmp_len;
mbedtls_reader rd;
for( int i=0; (unsigned) i < sizeof( buf ); i++ )
buf[i] = (unsigned char) i;
/* Preparation (lower layer) */
if( with_acc == 0 )
mbedtls_reader_init( &rd, NULL, 0 );
else
mbedtls_reader_init( &rd, acc, sizeof( acc ) );
TEST_ASSERT( mbedtls_reader_feed( &rd, buf, sizeof( buf ) ) == 0 );
/* Consumption (upper layer) */
TEST_ASSERT( mbedtls_reader_get( &rd, 10, &tmp, NULL ) == 0 );
ASSERT_COMPARE( tmp, 10, buf, 10 );
TEST_ASSERT( mbedtls_reader_get( &rd, 70, &tmp, NULL ) == 0 );
ASSERT_COMPARE( tmp, 70, buf + 10, 70 );
TEST_ASSERT( mbedtls_reader_get( &rd, 30, &tmp, &tmp_len ) == 0 );
ASSERT_COMPARE( tmp, tmp_len, buf + 80, 20 );
TEST_ASSERT( mbedtls_reader_commit( &rd ) == 0 );
/* Wrapup (lower layer) */
TEST_ASSERT( mbedtls_reader_reclaim( &rd, NULL ) == 0 );
mbedtls_reader_free( &rd );
}
/* END_CASE */