Android calculatortest

Test Android Application with Robotium:
1. Create Test Project
To test an Android application using Robotium, we need to create a test project within the package
(com.calculator) of Simple Calculator Project Source Code.
Put project name

Select test target or AUT(application under test)

Select Min SDK version
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 latest jar into project. we can download Robotium jar from
http://code.google.com/p/robotium/downloads/list

Note: In the latest Android SDK versions(17 or above) a java.lang.NoClassDefFoundError:
com.jayway.android.robotium.solo.Solo error is shown if the Robotium jar is not exported . To fix the
issue, after adding the Robotium jar go to the "Order & Export" tab and click the checkbox besides the
Robotium Jar and then click "OK". Please see the screenshot below.

4. Write Test Case code
In our create test case we will access the contents of AndroidCalculator and do followings,
1. Call/Access first & second input controls (EditFields)
2. Enter values of our own choice
3. Access & Click on Multiply button
4. Put assert to verify their multiplication result into result field. And add
following code into TestMain.java class and save it.
packagecom.calculator.test;
importandroid.test.ActivityInstrumentationTestCase2;
importandroid.widget.EditText;
importandroid.widget.TextView;
importcom.calculator.Main;
importcom.calculator.R;
importcom.jayway.android.robotium.solo.Solo;
publicclassTestMainextendsActivityInstrumentationTestCase2<Main>{
privateSolosolo;
publicTestMain(){
super(Main.class);
}
@Override
protectedvoidsetUp()throwsException{
super.setUp();
solo=newSolo(getInstrumentation(),getActivity());
}
publicvoidtestDisplayBlackBox(){
//Enter10infirstedit-field
solo.enterText(0,"10");
//Enter20infirstedit-field
solo.enterText(1,"20");
//ClickonMultiplybutton
solo.clickOnButton("Multiply");
//Verifythatresultantof10x20
assertTrue(solo.searchText("200"));
}

publicvoidtestDisplayWhiteBox(){
//Definingourownvaluestomultiply
floatfirstNumber=10;
floatsecondNumber=20;
floatresutl=firstNumber*secondNumber;
//AccessFirstvalue(edit-filed)andputtingfirstNumbervalueinit
EditTextFirsteditText=(EditText)solo.getView(R.id.EditText01);
solo.enterText(FirsteditText,String.valueOf(firstNumber));
//AccessSecondvalue(edit-filed)andputtingSecondNumbervalueinit
EditTextSecondeditText=(EditText)solo.getView(R.id.EditText02);
solo.enterText(SecondeditText,String.valueOf(secondNumber));
//ClickonMultiplybutton
solo.clickOnButton("Multiply");
assertTrue(solo.searchText(String.valueOf(resutl)));
TextViewoutputField=(TextView)solo.getView(R.id.TextView01);
//Asserttoverifyresultwithvisiblevalue
assertEquals(String.valueOf(resutl),outputField.getText().toString());
}
@Override
protectedvoidtearDown()throwsException{
solo.finishOpenedActivities();
}
}

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.

Android calculatortest

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