26     SLresult result;  in main()  local
31     result = slCreateEngine(&engineObject, 0, NULL, 0, NULL, NULL);  in main()
32     assert(SL_RESULT_SUCCESS == result);  in main()
33     result = (*engineObject)->Realize(engineObject, SL_BOOLEAN_FALSE);  in main()
34     assert(SL_RESULT_SUCCESS == result);  in main()
36     result = (*engineObject)->GetInterface(engineObject, SL_IID_ENGINE, &engineEngine);  in main()
37     assert(SL_RESULT_SUCCESS == result);  in main()
53         result = (*engineEngine)->QueryNumSupportedInterfaces(engineEngine, objectID, NULL);  in main()
54         assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
56         result = (*engineEngine)->QueryNumSupportedInterfaces(engineEngine, objectID,  in main()
59         if (SL_RESULT_FEATURE_UNSUPPORTED == result) {  in main()
61             result = (*engineEngine)->QuerySupportedInterfaces(engineEngine, objectID, 0,  in main()
63             assert(SL_RESULT_FEATURE_UNSUPPORTED == result);  in main()
67         assert(SL_RESULT_SUCCESS == result);  in main()
70             result = (*engineEngine)->QuerySupportedInterfaces(engineEngine, objectID, i, NULL);  in main()
71             assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
72             result = (*engineEngine)->QuerySupportedInterfaces(engineEngine, objectID, i,  in main()
75                 assert(SL_RESULT_SUCCESS == result);  in main()
79                 assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
84     result = (*engineEngine)->QueryNumSupportedExtensions(engineEngine, NULL);  in main()
85     assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
87     result = (*engineEngine)->QueryNumSupportedExtensions(engineEngine, &numExtensions);  in main()
88     assert(SL_RESULT_SUCCESS == result);  in main()
93         result = (*engineEngine)->QuerySupportedExtension(engineEngine, i, extensionName, NULL);  in main()
94         assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
96         result = (*engineEngine)->QuerySupportedExtension(engineEngine, i, NULL, &nameLength);  in main()
98             assert(SL_RESULT_SUCCESS == result);  in main()
101             assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
106         result = (*engineEngine)->QuerySupportedExtension(engineEngine, i, extensionName,  in main()
109             assert(SL_RESULT_BUFFER_INSUFFICIENT == result);  in main()
111             assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
115         result = (*engineEngine)->QuerySupportedExtension(engineEngine, i, extensionName,  in main()
118             assert(SL_RESULT_BUFFER_INSUFFICIENT == result);  in main()
120             assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
124         result = (*engineEngine)->QuerySupportedExtension(engineEngine, i, extensionName,  in main()
127             assert(SL_RESULT_BUFFER_INSUFFICIENT == result);  in main()
130             assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
134         result = (*engineEngine)->QuerySupportedExtension(engineEngine, i, extensionName,  in main()
137             assert(SL_RESULT_SUCCESS == result);  in main()
141             assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
147     result = (*engineEngine)->IsExtensionSupported(engineEngine, NULL, &isSupported);  in main()
148     assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
151     result = (*engineEngine)->IsExtensionSupported(engineEngine, unsupportedExt, NULL);  in main()
152     assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
154     result = (*engineEngine)->IsExtensionSupported(engineEngine, unsupportedExt, &isSupported);  in main()
155     assert(SL_RESULT_SUCCESS == result);  in main()
166     result = (*engineEngine)->IsExtensionSupported(engineEngine, supportedExt, &isSupported);  in main()
167     assert(SL_RESULT_SUCCESS == result);  in main()
170     result = (*engineEngine)->CreateExtensionObject(engineEngine, NULL, NULL, 0x123, 0, NULL, NULL);  in main()
171     assert(SL_RESULT_PARAMETER_INVALID == result);  in main()
174     result = (*engineEngine)->CreateExtensionObject(engineEngine, &extensionObject, NULL, 0x123, 0,  in main()
176     assert(SL_RESULT_FEATURE_UNSUPPORTED == result);  in main()