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How do you do mock data with Mockito?

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Pragya Keshap answered on March 1, 2023 Popularity 7/10 Helpfulness 3/10

answer How do you do mock data with Mockito?

How do you do mock data with Mockito?

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Step 1 − Create an interface called CalculatorService to provide mathematical functions.

Step 2 − Create a JAVA class to represent MathApplication.

Step 3 − Test the MathApplication class. ...

Step 4 − Execute test cases. ...

Step 5 − Verify the Result.

@RunWith(MockitoJUnitRunner.class)
public class MathApplicationTester {
	
   private MathApplication mathApplication;
   private CalculatorService calcService;

   @Before
   public void setUp(){
      mathApplication = new MathApplication();
      calcService = mock(CalculatorService.class);
      mathApplication.setCalculatorService(calcService);
   }

   @Test
   public void testAddAndSubtract(){

      //add the behavior to add numbers
      when(calcService.add(20.0,10.0)).thenReturn(30.0);

      //subtract the behavior to subtract numbers
      when(calcService.subtract(20.0,10.0)).thenReturn(10.0);

      //test the subtract functionality
      Assert.assertEquals(mathApplication.subtract(20.0, 10.0),10.0,0);

      //test the add functionality
      Assert.assertEquals(mathApplication.add(20.0, 10.0),30.0,0);

      //verify call to calcService is made or not
      verify(calcService).add(20.0,10.0);
      verify(calcService).subtract(20.0,10.0);
   }
}

https://www.tutorialspoint.com/mockito/mockito_create_mock.htm

Popularity 7/10 Helpfulness 3/10 Language java

Source: Grepper

Tags: java

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Contributed on Mar 01 2023

Pragya Keshap

0 Answers Avg Quality 2/10

How do you do mock data with Mockito?

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