How to use shouldVerifyWithNullVarArgArray method of org.mockitousage.basicapi.ResetInvocationsTest class

Best Mockito code snippet using org.mockitousage.basicapi.ResetInvocationsTest.shouldVerifyWithNullVarArgArray

shouldVerifyWithNullVarArgArray

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1public void shouldVerifyWithNullVarArgArray() {2List mock = mock(List.class);3mock.add("one");4mock.add("two");5mock.add("three");6mock.clear();7verify(mock).add("one", "two", "three");8}9public void shouldVerifyWithNullVarArgArray() {10List mock = mock(List.class);11mock.add("one");12mock.add("two");13mock.add("three");14mock.clear();15verify(mock).add("one", "two", "three");16}17public void shouldVerifyWithNullVarArgArray() {18List mock = mock(List.class);19mock.add("one");20mock.add("two");21mock.add("three");22mock.clear();23verify(mock).add("one", "two", "three");24}25public void shouldVerifyWithNullVarArgArray() {26List mock = mock(List.class);27mock.add("one");28mock.add("two");29mock.add("three");30mock.clear();31verify(mock).add("one", "two", "three");32}33public void shouldVerifyWithNullVarArgArray() {34List mock = mock(List.class);35mock.add("one");36mock.add("two");37mock.add("three");38mock.clear();

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If you are mocking the behavior (with something like doNothing()) there should really be no need to call to verify*(). That said, here's my stab at re-writing your test method:

@PrepareForTest({InternalUtils.class})
@RunWith(PowerMockRunner.class)
public class InternalServiceTest { //Note the renaming of the test class.
   public void testProcessOrder() {
        //Variables
        InternalService is = new InternalService();
        Order order = mock(Order.class);

        //Mock Behavior
        when(order.isSuccessful()).thenReturn(true);
        mockStatic(Internalutils.class);
        doNothing().when(InternalUtils.class); //This is the preferred way
                                               //to mock static void methods.
        InternalUtils.sendEmail(anyString(), anyString(), anyString(), anyString());

        //Execute
        is.processOrder(order);            

        //Verify
        verifyStatic(InternalUtils.class); //Similar to how you mock static methods
                                           //this is how you verify them.
        InternalUtils.sendEmail(anyString(), anyString(), anyString(), anyString());
   }
}

I grouped into four sections to better highlight what is going on:

1. Variables

I choose to declare any instance variables / method arguments / mock collaborators here. If it is something used in multiple tests, consider making it an instance variable of the test class.

2. Mock Behavior

This is where you define the behavior of all of your mocks. You're setting up return values and expectations here, prior to executing the code under test. Generally speaking, if you set the mock behavior here you wouldn't need to verify the behavior later.

3. Execute

Nothing fancy here; this just kicks off the code being tested. I like to give it its own section to call attention to it.

4. Verify

This is when you call any method starting with verify or assert. After the test is over, you check that the things you wanted to have happen actually did happen. That is the biggest mistake I see with your test method; you attempted to verify the method call before it was ever given a chance to run. Second to that is you never specified which static method you wanted to verify.

Additional Notes

This is mostly personal preference on my part. There is a certain order you need to do things in but within each grouping there is a little wiggle room. This helps me quickly separate out what is happening where.

I also highly recommend going through the examples at the following sites as they are very robust and can help with the majority of the cases you'll need:

https://stackoverflow.com/questions/18466198/how-to-verify-static-void-method-has-been-called-with-power-mockito

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