commits for BAEL 4293

core-java-modules/core-java-os/src/test/java/com/baeldung/example/soundapi/AppTest.java

@@ -0,0 +1,75 @@
+package com.baeldung.example.soundapi;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.Assertions;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.fail;
+import java.io.ByteArrayOutputStream;
+
+import javax.sound.sampled.AudioFileFormat;
+import javax.sound.sampled.AudioFormat;
+import javax.sound.sampled.TargetDataLine;
+
+public class AppTest {
+
+    AudioFormat af = App.buildAudioFormatInstance();
+    SoundRecorder soundRecorder = new SoundRecorder();
+
+    @Test
+    public void when_run_save_SoundClip() {
+
+        soundRecorder.build(af);
+        try {
+            soundRecorder.start();
+            Thread.sleep(20000);
+            soundRecorder.stop();
+        } catch (InterruptedException ex) {
+            fail("Exception: " + ex);
+        }
+
+    }
+
+    @Test
+    public void when_run_get_targetdataline() {
+        soundRecorder.setFormat(af);
+        Assertions.assertDoesNotThrow(() -> soundRecorder.getTargetDataLineForRecord());
+    }
+
+    @Test
+    public void when_run_build_byte_ouptstream() {
+
+        soundRecorder.setFormat(af);
+        ByteArrayOutputStream out = new ByteArrayOutputStream();
+        TargetDataLine tLine = soundRecorder.getTargetDataLineForRecord();
+
+        int frameSizeInBytes = af.getFrameSize();
+        int bufferLengthInFrames = tLine.getBufferSize() / 8;
+        final int bufferLengthInBytes = bufferLengthInFrames * frameSizeInBytes;
+
+        Assertions.assertDoesNotThrow(
+                () -> soundRecorder.buildByteOutputStream(out, tLine, frameSizeInBytes, bufferLengthInBytes));
+    }
+
+    @Test
+    public void when_run_then_save_file() {
+        soundRecorder.setFormat(af);
+        soundRecorder.build(af);
+        try {
+            soundRecorder.start();
+            Thread.sleep(20000);
+            soundRecorder.stop();
+            WaveDataUtil wd = new WaveDataUtil();
+            Thread.sleep(3000);
+            boolean saveFile = wd.saveToFile("/SoundClip", AudioFileFormat.Type.WAVE,
+                    soundRecorder.getAudioInputStream());
+
+            assertEquals(saveFile, true);
+
+        } catch (InterruptedException ex) {
+            fail("Exception: " + ex);
+        }
+
+    }
+
+}