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diff --git a/src/androidTest/java/se/lublin/humla/test/EncoderTest.java b/src/androidTest/java/se/lublin/humla/test/EncoderTest.java
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+++ b/src/androidTest/java/se/lublin/humla/test/EncoderTest.java
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+/*
+ * Copyright (C) 2014 Andrew Comminos
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package se.lublin.humla.test;
+
+import android.test.AndroidTestCase;
+
+import com.googlecode.javacpp.Loader;
+import se.lublin.humla.audio.encoder.CELT7Encoder;
+import se.lublin.humla.audio.encoder.IEncoder;
+import se.lublin.humla.audio.encoder.OpusEncoder;
+import se.lublin.humla.audio.javacpp.Opus;
+import se.lublin.humla.exception.NativeAudioException;
+import se.lublin.humla.net.PacketBuffer;
+
+/**
+ * This class tests the Opus and CELT encoders with blank PCM data.
+ * The bitrate is set to 40000bps. TODO: add test for varying bitrates.
+ * If any of these methods throw a NativeAudioException, then the test will fail.
+ * Created by andrew on 13/10/13.
+ */
+public class EncoderTest extends AndroidTestCase {
+    private static final int MAX_BUFFER_SIZE = 960;
+    private static final int SAMPLE_RATE = 48000;
+    private static final int BITRATE = 40000;
+    private static final int FRAME_SIZE = 480;
+    private static final int FRAMES_PER_PACKET = 4;
+
+    static {
+        Loader.load(Opus.class);
+    }
+
+    public void testOpusEncode() throws NativeAudioException {
+        IEncoder encoder = new OpusEncoder(SAMPLE_RATE, 1, FRAME_SIZE, FRAMES_PER_PACKET, BITRATE, MAX_BUFFER_SIZE);
+        testEncoder(encoder);
+        encoder.destroy();
+    }
+
+    public void testCELT7Encode() throws NativeAudioException {
+        CELT7Encoder encoder = new CELT7Encoder(SAMPLE_RATE, FRAME_SIZE, 1, FRAMES_PER_PACKET,
+                BITRATE, MAX_BUFFER_SIZE);
+        testEncoder(encoder);
+        encoder.destroy();
+    }
+
+    public void testEncoder(IEncoder encoder) throws NativeAudioException {
+        assertFalse(encoder.isReady());
+        assertEquals(0, encoder.getBufferedFrames());
+
+        //
+        final short[] dummyFrame = new short[FRAME_SIZE];
+        for (int i = 0; i < FRAMES_PER_PACKET; i++) {
+            assertFalse(encoder.isReady());
+            encoder.encode(dummyFrame, FRAME_SIZE);
+        }
+        assertTrue(encoder.isReady());
+        assertEquals(FRAMES_PER_PACKET, encoder.getBufferedFrames());
+
+        // Flushing
+        PacketBuffer buffer = PacketBuffer.allocate(MAX_BUFFER_SIZE);
+        encoder.getEncodedData(buffer);
+        assertFalse(encoder.isReady());
+        assertEquals(0, encoder.getBufferedFrames());
+
+        // Termination (for frames per packet > 1)
+        encoder.encode(dummyFrame, FRAME_SIZE);
+        assertFalse(encoder.isReady());
+        encoder.terminate();
+        assertTrue(encoder.isReady());
+
+    }
+}