Had a go at adding a simple automatic test - can't make it work though!

app/build.gradle

@@ -22,4 +22,12 @@ dependencies {
     compile files('libs/mpandroidchartlibrary-2-0-7.jar')
     compile files('libs/pebblekit-2.6.0-eclipse.jar')
     compile 'com.android.support:appcompat-v7:22.2.1'
+
+    // Unit testing dependencies
+    testCompile 'junit:junit:4.12'
+    // Set this dependency if you want to use Mockito
+    testCompile 'org.mockito:mockito-core:1.10.19'
+    // Set this dependency if you want to use Hamcrest matching
+    testCompile 'org.hamcrest:hamcrest-library:1.1'
+
 }

app/src/test/java/uk.org.openseizuredetector/SdServiceConnection.java

@@ -0,0 +1,13 @@
+import org.junit.Test;
+import java.util.regex.Pattern;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+public class SdServiceConnectionTest {
+
+    @Test
+    public void isconnected_test() {
+        assertThat(SdServiceConnection.isConnected(), is(true));
+    }
+    ...
+}