Improve readability in ecjpake tests

Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
diff --git a/tests/suites/test_suite_psa_crypto.function b/tests/suites/test_suite_psa_crypto.function
index 355cba5..b4a83ab 100644
--- a/tests/suites/test_suite_psa_crypto.function
+++ b/tests/suites/test_suite_psa_crypto.function
@@ -7234,28 +7234,31 @@
 /* END_CASE */
 
 /* BEGIN_CASE depends_on:MBEDTLS_PSA_BUILTIN_ALG_TLS12_PSK_TO_MS:MBEDTLS_SHA256_C */
-void derive_ecjpake_to_pms( data_t *input, int expected_input_status,
+void derive_ecjpake_to_pms( data_t *input, int expected_input_status_arg,
                             int derivation_step,
-                            int capacity, int expected_capacity_status,
+                            int capacity, int expected_capacity_status_arg,
                             data_t *expected_output,
-                            int expected_output_status )
+                            int expected_output_status_arg )
 {
     psa_algorithm_t alg = PSA_ALG_TLS12_ECJPAKE_TO_PMS;
     psa_key_derivation_operation_t operation = PSA_KEY_DERIVATION_OPERATION_INIT;
     psa_key_derivation_step_t step = (psa_key_derivation_step_t) derivation_step;
     uint8_t *output_buffer = NULL;
     psa_status_t status;
+    psa_status_t expected_input_status = (psa_status_t) expected_input_status_arg;
+    psa_status_t expected_capacity_status = (psa_status_t) expected_capacity_status_arg;
+    psa_status_t expected_output_status = (psa_status_t) expected_output_status_arg;
 
     ASSERT_ALLOC( output_buffer, expected_output->len );
     PSA_ASSERT( psa_crypto_init() );
 
     PSA_ASSERT( psa_key_derivation_setup( &operation, alg ) );
     TEST_EQUAL( psa_key_derivation_set_capacity( &operation, capacity ),
-        (psa_status_t) expected_capacity_status );
+                expected_capacity_status);
 
     TEST_EQUAL( psa_key_derivation_input_bytes( &operation,
-                step, input->x, input->len ),
-        (psa_status_t) expected_input_status );
+                    step, input->x, input->len ),
+                expected_input_status );
 
     if( ( (psa_status_t) expected_input_status ) != PSA_SUCCESS )
         goto exit;
@@ -7263,7 +7266,7 @@
     status = psa_key_derivation_output_bytes( &operation, output_buffer,
         expected_output->len );
 
-    TEST_EQUAL( status, (psa_status_t) expected_output_status );
+    TEST_EQUAL( status, expected_output_status );
     if( expected_output->len != 0 && expected_output_status == PSA_SUCCESS )
         ASSERT_COMPARE( output_buffer, expected_output->len, expected_output->x,
                         expected_output->len );