Issue#8261 : Added test cases for InfiniteStreamRecognize class

speech/src/test/java/com/example/speech/InfiniteStreamRecognizeIT.java

@@ -0,0 +1,59 @@
+package com.example.speech;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import com.google.api.gax.rpc.ClientStream;
+import com.google.api.gax.rpc.ResponseObserver;
+import com.google.api.gax.rpc.StreamController;
+import com.google.cloud.speech.v1p1beta1.RecognitionConfig;
+import com.google.cloud.speech.v1p1beta1.SpeechClient;
+import com.google.cloud.speech.v1p1beta1.SpeechRecognitionAlternative;
+import com.google.cloud.speech.v1p1beta1.StreamingRecognitionConfig;
+import com.google.cloud.speech.v1p1beta1.StreamingRecognitionResult;
+import com.google.cloud.speech.v1p1beta1.StreamingRecognizeRequest;
+import com.google.cloud.speech.v1p1beta1.StreamingRecognizeResponse;
+import com.google.protobuf.ByteString;
+import com.google.protobuf.Duration;
+import java.text.DecimalFormat;
+import java.util.ArrayList;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.TimeUnit;
+import javax.sound.sampled.AudioFormat;
+import javax.sound.sampled.AudioSystem;
+import javax.sound.sampled.DataLine;
+import javax.sound.sampled.DataLine.Info;
+import javax.sound.sampled.TargetDataLine;
+
+@RunWith(JUnit4.class)
+@SuppressWarnings("checkstyle:abbreviationaswordinname")
+public class InfiniteStreamRecognizeIT {
+  private String langCode = "--langCode=en-US";
+  private final ByteArrayOutputStream stdout = new ByteArrayOutputStream();
+  private final ByteArrayOutputStream stderr = new ByteArrayOutputStream();
+  private PrintStream originalStdout = System.out;
+  private PrintStream originalStderr = System.err;
+
+  @Before
+  public void setUp() {
+    System.setOut(new PrintStream(stdout));
+    System.setErr(new PrintStream(stderr));
+  }
+
+  @After
+  public void tearDown() {
+    System.setOut(originalStdout);
+    System.setErr(originalStderr);
+  }
+
+  @Test
+  public void testInfiniteStreamRecognize() throws Exception {
+    InfiniteStreamRecognize.main(langCode);
+    assertThat(stdout.toString()).contains("Start speaking");
+  }
+}