MockitoVerifyParametersTests.java

package com.tiket.poc.swagger;

import java.util.List;
import org.hamcrest.MatcherAssert;
import org.hamcrest.Matchers;
import org.junit.Test;
import org.mockito.ArgumentCaptor;
import org.mockito.Mockito;

public class MockitoVerifyParametersTests {

  @Test
  public void test() {
    ComponentUnderTest componentUnderTest = Mockito.mock(ComponentUnderTest.class);

    ArgumentCaptor<String> valueCaptors = ArgumentCaptor.forClass(String.class);

    Mockito.when(componentUnderTest.parseValue(valueCaptors.capture()))
        .thenAnswer(invocation -> {
          String arg = invocation.getArgument(0);
          return Integer.parseInt(arg);
        });

    MatcherAssert.assertThat(componentUnderTest.parseValue("1"), Matchers.is(1));
    MatcherAssert.assertThat(componentUnderTest.parseValue("2"), Matchers.is(2));
    MatcherAssert.assertThat(componentUnderTest.parseValue("3"), Matchers.is(3));

    List<String> arguments = valueCaptors.getAllValues();
    MatcherAssert.assertThat(arguments, Matchers.contains("1", "2", "3"));

    Mockito.verify(componentUnderTest, Mockito.times(3)).parseValue(Mockito.anyString());
  }

  static interface ComponentUnderTest {
    int parseValue(String value);
  }
}