PowerMockito VerifyStatic not working in 2.0.0-beta5

Question

I am getting an issue using powermockito (2.0.0-beta5) to verify a static method was called a certain number of times when I call a different (also static) method. The classes are prepared for test at the top of my test file The relevant code snippet is:

mockStatic(Tester.class);
when(Tester.staticMethod(anyString(), anyString())).thenAnswer(new FirstResponseWithText());
OtherClass.methodThatCallsTesterStaticMethod("", "", "", false, "");
verifyStatic(Tester.class, times(3));
Tester.sendFaqRequest(anyString(), anyString());

FirstResponseWithText is a class that extends Answer that controls the order of responses. I've used that elsewhere and it works fine.

I get the following error on the verifyStatic line:

org.mockito.exceptions.misusing.NotAMockException: 
Argument passed to verify() is of type Class and is not a mock!
Make sure you place the parenthesis correctly!
See the examples of correct verifications:
    verify(mock).someMethod();
    verify(mock, times(10)).someMethod();
    verify(mock, atLeastOnce()).someMethod();

What is the proper way to pass the class to verifyStatic? All the examples I can find online are for pre-2.x.x releases where verifyStatic did not take a class parameter.

score 0 · Answer 1 · answered Aug 24 '19 at 01:30

I think the PowerMockito version is not the problem. I tested the following code with versions

1.7.3,
2.0.0-beta.5 (your version),
2.0.2.

Application classes:

package de.scrum_master.stackoverflow.q52952222;

public class Tester {
  public static String sendFaqRequest(String one, String two) {
    return "real response";
  }
}

package de.scrum_master.stackoverflow.q52952222;

public class OtherClass {
  public static void methodThatCallsTesterStaticMethod(String one, String two, String three, boolean four, String five) {
    System.out.println(Tester.sendFaqRequest("A", "B"));
    System.out.println(Tester.sendFaqRequest("C", "D"));
    System.out.println(Tester.sendFaqRequest("E", "F"));
  }
}

Test classes:

package de.scrum_master.stackoverflow.q52952222;

import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;

import java.util.Arrays;

public class FirstResponseWithText implements Answer {
  @Override
  public Object answer(InvocationOnMock invocation) throws Throwable {
    Object[] args = invocation.getArguments();
    String methodName = invocation.getMethod().getName();
    return methodName + " called with arguments: " + Arrays.toString(args);
  }
}

package de.scrum_master.stackoverflow.q52952222;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

import static org.mockito.Mockito.anyString;
import static org.mockito.Mockito.times;
import static org.powermock.api.mockito.PowerMockito.*;

@RunWith(PowerMockRunner.class)
@PrepareForTest({ Tester.class })
public class MyTest {
  @Test
  public void myTest() {
    // Tell PowerMockito that we want to mock static methods in this class
    mockStatic(Tester.class);
    // Stub return value for static method call
    when(Tester.sendFaqRequest(anyString(), anyString())).thenAnswer(new FirstResponseWithText());
    // Call method which calls our static method 3x
    OtherClass.methodThatCallsTesterStaticMethod("", "", "", false, "");
    // Verify that Tester.sendFaqRequest was called 3x
    verifyStatic(Tester.class, times(3));
    Tester.sendFaqRequest(anyString(), anyString());
  }
}

So if this does not work for you and your Maven or Gradle dependencies are also okay, the difference is maybe in your FirstResponseWithText class. Maybe you want to show it so we can all see what kind of magic you do in there. As you can see from my sample code, I had to make several educated guesses because you only share a little snippet of test code and not MCVE like you should. This way I can only speculate and actually I do not like to because it might be a waste of time for both you and myself.

PowerMockito VerifyStatic not working in 2.0.0-beta5

1 Answers1