add encryption only test case
diff --git a/tests/suites/test_suite_psa_crypto.function b/tests/suites/test_suite_psa_crypto.function
index 10687cd..a582b56 100755
--- a/tests/suites/test_suite_psa_crypto.function
+++ b/tests/suites/test_suite_psa_crypto.function
@@ -655,3 +655,70 @@
     mbedtls_psa_crypto_free( );
 }
 /* END_CASE */
+
+/* BEGIN_CASE */
+void aead_encrypt( int key_type_arg, char * key_hex,
+                int alg_arg, char * input_hex,
+                char * add_data, char * nonce_hex,
+                char * expected_result_hex )
+{
+    int slot = 1;
+    psa_key_type_t key_type = key_type_arg;
+    psa_algorithm_t alg = alg_arg;
+    unsigned char *key_data = NULL;
+    size_t key_size;
+    unsigned char *input_data = NULL;
+    size_t input_size;
+    unsigned char *output_data = NULL;
+    size_t output_size = 0;
+    size_t output_length = 0;
+    unsigned char *expected_result = NULL;
+    size_t expected_result_length = 0;
+    uint8_t* nonce = NULL;
+    size_t nonce_length = 0;
+    size_t tag_length = 16;
+    unsigned char *additional_data = NULL;
+    size_t additional_data_length = 0;
+
+
+    key_data = unhexify_alloc( key_hex, &key_size );
+    TEST_ASSERT( key_data != NULL );
+    input_data = unhexify_alloc( input_hex, &input_size );
+    TEST_ASSERT( input_data != NULL );
+    additional_data = unhexify_alloc( add_data, &additional_data_length );
+    TEST_ASSERT( input_data != NULL );
+    output_size = input_size + tag_length;
+    output_data = mbedtls_calloc( 1, output_size );
+    TEST_ASSERT( output_data != NULL );
+    nonce = unhexify_alloc( nonce_hex, &nonce_length );
+    TEST_ASSERT( nonce != NULL );
+    expected_result = unhexify_alloc( expected_result_hex, &expected_result_length );
+    TEST_ASSERT( expected_result != NULL );
+    
+    TEST_ASSERT( psa_crypto_init( ) == PSA_SUCCESS );
+
+    TEST_ASSERT( psa_import_key( slot, key_type,
+                                 key_data, key_size ) == PSA_SUCCESS );
+
+    TEST_ASSERT( psa_aead_encrypt( slot, alg,
+                               nonce, nonce_length,
+                               additional_data, additional_data_length,
+                               input_data, input_size, output_data,
+                               output_size, &output_length ) == PSA_SUCCESS );
+
+
+    TEST_ASSERT( memcmp( output_data, expected_result,
+                                output_length ) == 0 );
+    
+
+exit:
+    psa_destroy_key( slot );
+    mbedtls_free( key_data );
+    mbedtls_free( input_data );
+    mbedtls_free( additional_data );
+    mbedtls_free( output_data );
+    mbedtls_free( nonce );
+    mbedtls_free( expected_result );
+    mbedtls_psa_crypto_free( );
+}
+/* END_CASE */