fixed: ObserveResult_Success unit test method

fixed: ObserveResult_Catch_Exception unit test method

Author: ATILATosta

test/IBM.WatsonDeveloperCloud.SpeechToText.UnitTests/SpeechToTextServiceUnitTest.cs

@@ -1373,69 +1373,15 @@ public void ObserveResult_Success()
             client.WithAuthentication(Arg.Any<string>(), Arg.Any<string>())
                   .Returns(client);
 
-            SpeechRecognitionEvent response = new SpeechRecognitionEvent()
-            {
-                ResultIndex = 1,
-                Results = new List<SpeechRecognitionResult>()
-               {
-                   new SpeechRecognitionResult()
-                   {
-                       Alternatives = new List<SpeechRecognitionAlternative>()
-                       {
-                           new SpeechRecognitionAlternative()
-                           {
-                               Confidence = 0.9,
-                               Timestamps = new List<string>(),
-                               Transcript = "transcript",
-                               WordConfidence = new List<string>()
-                           }
-                       },
-                       Final = true,
-                       KeywordResults = new KeywordResults()
-                       {
-                           Keyword = new List<KeywordResult>()
-                           {
-                               new KeywordResult()
-                               {
-                                   Confidence = 0.9,
-                                   Endtime = 0.1,
-                                   NormalizedText = "normalized_text",
-                                   StartTime = 0
-                               }
-                           }
-                       },
-                       WordAlternativeResults = new List<WordAlternativeResults>()
-                       {
-                           new WordAlternativeResults()
-                           {
-                               Alternatives = new List<WordAlternativeResult>()
-                               {
-                                   new WordAlternativeResult()
-                                   {
-                                       Confidence = 0.9,
-                                       Word = 0.1
-                                   }
-                               },
-                               Endtime = 1,
-                               StartTime = 0.1
-                           }
-                       }
-                   }
-               }
-            };
-
             IRequest request = Substitute.For<IRequest>();
-            client.PostAsync(Arg.Any<string>())
+            client.GetAsync(Arg.Any<string>())
                   .Returns(request);
 
             request.WithArgument(Arg.Any<string>(), Arg.Any<object>())
                    .Returns(request);
 
-            request.AsList<SpeechRecognitionEvent>()
-                   .Returns(Task.FromResult(new List<SpeechRecognitionEvent>()
-                   {
-                       response
-                   }));
+            request.AsString()
+                   .Returns(Task.FromResult("{\"results\":[{\"alternatives\":[{\"transcript\":\"several torn \"}],\"final\":false}],\"result_index\":0}"));
 
             #endregion
 
@@ -1444,7 +1390,7 @@ public void ObserveResult_Success()
             var recognitionEvent = service.ObserveResult("session_id", 1, true);
 
             Assert.IsNotNull(recognitionEvent);
-            client.Received().PostAsync(Arg.Any<string>());
+            client.Received().GetAsync(Arg.Any<string>());
             Assert.IsTrue(recognitionEvent.Count > 0);
         }
 
@@ -1490,7 +1436,7 @@ public void ObserveResult_Catch_Exception()
             SpeechRecognitionEvent response = new SpeechRecognitionEvent();
 
             IRequest request = Substitute.For<IRequest>();
-            client.PostAsync(Arg.Any<string>())
+            client.GetAsync(Arg.Any<string>())
                   .Returns(x =>
                   {
                       throw new AggregateException(new ServiceResponseException(Substitute.For<IResponse>(),