27     SLresult result;  in main()  local
29     result = slQueryNumSupportedEngineInterfaces(&numSupportedInterfaces);  in main()
30     assert(SL_RESULT_SUCCESS == result);  in main()
31     result = slQueryNumSupportedEngineInterfaces(NULL);  in main()
32     assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
45         result = slQuerySupportedEngineInterfaces(index, &interfaceID);  in main()
47             assert(SL_RESULT_SUCCESS == result);  in main()
53             assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
55         result = slQuerySupportedEngineInterfaces(index, NULL);  in main()
56         assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
63         result = slCreateEngine(&engineObject, 0, NULL, numSupportedInterfaces, engine_ids, NULL);  in main()
64         assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
66         result = slCreateEngine(&engineObject, 0, NULL, numSupportedInterfaces, NULL, engine_req);  in main()
67         assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
72     result = slCreateEngine(NULL, 0, NULL, numSupportedInterfaces, engine_ids, engine_req);  in main()
73     assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
78     result = slCreateEngine(&engineObject, 0, NULL, 1, null_id, null_req);  in main()
79     assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
83     result = slCreateEngine(&engineObject, 1, NULL, 0, NULL, NULL);  in main()
84     assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
91     result = slCreateEngine(&engineObject, 1, options, 0, NULL, NULL);  in main()
92     assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
98     result = slCreateEngine(&engineObject, 0, NULL, numSupportedInterfaces+1, engine_ids,  in main()
100     assert(SL_RESULT_FEATURE_UNSUPPORTED == result);  in main()
109     result = slCreateEngine(&engineObject, 2, options, numSupportedInterfaces+1, engine_ids,  in main()
111     assert(SL_RESULT_SUCCESS == result);  in main()
118         result = (*engineObject)->GetInterface(engineObject, engine_ids[index], &interface);  in main()
119         assert(SL_RESULT_SUCCESS == result || SL_RESULT_PRECONDITIONS_VIOLATED == result);  in main()
120         if (SL_RESULT_SUCCESS == result) {  in main()
130     result = slCreateEngine(&engineObject, 0, NULL, numSupportedInterfaces, engine_ids, engine_req);  in main()
131     assert(SL_RESULT_SUCCESS == result);  in main()
135     result = (*engineObject)->Realize(engineObject, SL_BOOLEAN_FALSE);  in main()
136     assert(SL_RESULT_SUCCESS == result);  in main()
141         result = (*engineObject)->GetInterface(engineObject, engine_ids[index], &interface);  in main()
142         assert(SL_RESULT_SUCCESS == result);  in main()
148         result = (*engineObject)->GetInterface(engineObject, &copy, &interface_again);  in main()
149         assert(SL_RESULT_SUCCESS == result);  in main()
159     result = slCreateEngine(&engineObject2, 0, NULL, 0, NULL, NULL);  in main()
160     assert(SL_RESULT_RESOURCE_ERROR == result);  in main()
168     result = slCreateEngine(&engineObject2, 0, NULL, 0, NULL, NULL);  in main()
169     assert(SL_RESULT_SUCCESS == result);  in main()