Test Android Sample App with Robotium

1. Create Test Project
To test an Android application using Robotium, we need to create a test project with in the package (com.calculator) of specific project. We have already created our test project in last section, hope you got viewing below screen,

We will move on to design our logic to test AndroidCaculator. We need to create test case class where we will write code to test AndroidCalculator’s main class (Main.java).

2. Create Test Case
In test project from project explorer window right click on com.calculator.test select New then others. On New window expand Java and then expand Junit category and select Junit Test Case and click on Next.

On New Junit Test Case screen, most of the options will be automatically filled as we have already created test project (AndroidCalculatorTest) with project (AndroidCalculator). We need to enter the Name of Test case, which I will enter TestMain, as I am going to test (main.java) of AndroidCalculator project. On next section check Setup(), tearDown() & Constructor options and click on Finish.

A new test case by the name of TestMain will be created into com.calculator.test package of my test project (AndroidCaculatorTest).

3. Add Robotium Jar
We need to reference the Robotium jar to our project.

Right click on project select Build Path, and then click on Configure Build Path option. On Properties window click on Libraries tab and add Robotium jar into project.

You can download Robotium jar from http://code.google.com/p/robotium/downloads/list

4. Write Test Case Code
In our create test case we will access the contents of AndroidCalculator and do followings,

a. Call/Access first & second input controls (EditFields)
b. Enter values of our own choice
c. Access & Click on Multiply button
d. Put assert to verify their multiplication result into result field.

And add following code into TestMain.java class and save it.

package com.calculator.test;

import java.util.ArrayList;

import android.app.Activity;

import android.test.ActivityInstrumentationTestCase2;

import android.widget.EditText;

import android.widget.TextView;

import com.calculator.Main;

import com.calculator.R;

import com.jayway.android.robotium.solo.Solo;

public class TestMain extends ActivityInstrumentationTestCase2

{

private Solo solo;

public TestMain() {

super(“com.calculator”, Main.class);

}

@Override

protected void setUp() throws Exception {

super.setUp();

solo = new Solo(getInstrumentation(), getActivity());

}

@Override

protected void tearDown() throws Exception{

try {

solo.finalize();

} catch (Throwable e) {

e.printStackTrace();

}

getActivity().finish();

super.tearDown();

}

public void testDisplayBlackBox() {

//Enter any integer/decimal value, we will enter 10 in first editfield

solo.enterText(0, “10”);

//Enter any integer/decimal value, we will enter 20 in second editfield

solo.enterText(1, “20”);

//Click on Multiply button

solo.clickOnButton(“Multiply”);

//Verify that resultant of 10 x 20

assertTrue(solo.searchText(“200”));

}

public void testDisplayWhiteBox() {

//Defining our own values to multiply

float firstNumber = 10;

float secondNumber = 20;

float resutl = firstNumber * secondNumber ;

//Access First value (editfiled) and putting firstNumber value in it

EditText FirsteditText = (EditText) solo.getView(R.id.EditText01);

solo.enterText(FirsteditText, String.valueOf(firstNumber));

//Access Second value (editfiled) and putting SecondNumber value in it

EditText SecondeditText = (EditText) solo.getView(R.id.EditText02);

solo.enterText(SecondeditText, String.valueOf(secondNumber));

//Click on Multiply button

solo.clickOnButton(“Multiply”);

assertTrue(solo.searchText(String.valueOf(resutl)));

TextView outputField = (TextView) solo.getView(R.id.TextView01);

ArrayList currentTextViews = this.solo.getCurrentTextViews(outputField);

assertFalse(currentTextViews.isEmpty());

TextView output = (TextView) currentTextViews.get(0);

//Assert to verify result with visible value

assertEquals(String.valueOf(resutl), output.getText().toString());

}

}

5. Run Test Case
Now as we are almost done so now its time to run our test case.

Right click on TestMain.java file select Run As option and then click on Android Junit Test. It will start running Junit test.

Select the emulator or device to run the test (we will be using Android default emulator) , and wait for a while to see the magic of Robotium.

If things are going fine

1. Emulator will load, Unlock it.

2. AndroidCalculator application will load

3. It will automatically enter first & second values in First and Second EditField, and click on Multiply button (you can see all this happening as record & play scripts)

4. After successfully execution it will show green bar showing the successful execution and all results are passed.

Download AndroidCalculatorTest project code. In next section we will test android apk file with Robotium.