kotlin_testing_pt2_example_2_java_test

kotlin_testing_pt2_example_2_java_test.kt

package testing.fabiocarballo.com.myapplication;

import org.junit.Before;
import org.junit.Test;
import org.mockito.InOrder;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;

public class TemperaturePresenterJavaTest {

    @Mock
    LocationProvider locationProvider;
    @Mock
    TemperatureProvider temperatureProvider;
    @Mock
    View view;

    TemperaturePresenter tested;

    @Before
    public void setUp() {
        MockitoAnnotations.initMocks(this);

        tested = new TemperaturePresenter(
            locationProvider, temperatureProvider, view);
    }

    @Test
    public void testInexactTemperatureIsDisplayedFollowedByExactTemperature() {
        Coordinate lastLocation = new Coordinate(41.5, 8.9);
        Coordinate currentLocation = new Coordinate(38.7, 9.7);

        Mockito.when(locationProvider.getLastKnownLocation())
            .thenReturn(lastLocation);
        
        Mockito.when(locationProvider.getExactLocation())
            .thenReturn(currentLocation);

        Mockito.when(temperatureProvider.getCelsiusTemperatureAt(lastLocation))
            .thenReturn(18f);
        
        Mockito.when(temperatureProvider.getCelsiusTemperatureAt(currentLocation))
            .thenReturn(21f);

        tested.start();

        InOrder inOrder = Mockito.inOrder(temperatureProvider, view);

        inOrder.verify(temperatureProvider).getCelsiusTemperatureAt(lastLocation);
        inOrder.verify(view).displayTemperature(18f);

        inOrder.verify(temperatureProvider).getCelsiusTemperatureAt(currentLocation);
        inOrder.verify(view).displayTemperature(21f);
    }
}