java: Implement Initial TDD for further testing purposes

app/build.gradle

@@ -29,6 +29,7 @@ android {
             // libraries Gradle should build and package with your APK.
             abiFilters 'armeabi-v7a', 'arm64-v8a'
         }
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
 
     buildTypes {
@@ -70,5 +71,10 @@ dependencies {
     api 'com.github.erz05:JoyStick:1.1.0'
     implementation 'com.loopj.android:android-async-http:1.4.10'
     implementation 'com.google.guava:guava:29.0-android'
+
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.jayway.android.robotium:robotium-solo:5.6.0'
+    androidTestImplementation 'com.android.support.test:runner:0.3'
+
     implementation fileTree(include: ['*.jar'], dir: 'libs')
 }

app/src/androidTest/java/org/etlegacy/app/TestETL.java

@@ -0,0 +1,37 @@
+package org.etlegacy.app;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import com.robotium.solo.Solo;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * Instrumentation test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class TestETL {
+
+    private Solo solo;
+
+    @Test
+    public void useAppContext() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("org.etlegacy.app", appContext.getPackageName());
+    }
+
+    @Test
+    public void clickOnNickEntry() throws Exception {
+        // Perform click on Nickname Entry
+        // TODO: Implement
+    }
+
+}