Some preparations for unit tests

app/build.gradle

@@ -28,4 +28,7 @@ dependencies {
     compile 'org.slf4j:slf4j-api:1.7.7'
     compile 'com.github.PhilJay:MPAndroidChart:2.1.0'
     compile 'com.github.pfichtner:durationformatter:0.1.1'
+
+    testCompile 'junit:junit:4.12'
+//    testCompile "org.mockito:mockito-core:1.9.5"
 }

app/src/test/java/nodomain/freeyourgadget/gadgetbridge/service/btle/BtLEQueueTest.java

@@ -0,0 +1,19 @@
+package nodomain.freeyourgadget.gadgetbridge.service.btle;
+
+import junit.framework.TestCase;
+
+public class BtLEQueueTest extends TestCase {
+
+    public void setUp() throws Exception {
+        super.setUp();
+
+    }
+
+    public void tearDown() throws Exception {
+
+    }
+
+    public void testIsConnected() throws Exception {
+
+    }
+}

build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.0.0'
+        classpath 'com.android.tools.build:gradle:1.2.3'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files