TestMvpPresenter.java

package com.khmelenko.lab.varis.presenter;

import com.khmelenko.lab.varis.mvp.MvpPresenter;
import com.khmelenko.lab.varis.mvp.MvpView;
import com.khmelenko.lab.varis.view.SearchResultsView;

import org.junit.Before;
import org.junit.Test;

import static junit.framework.Assert.assertNotNull;
import static junit.framework.Assert.assertNull;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.verify;

/**
 * Tests for base {@link MvpPresenter}
 *
 * @author Dmytro Khmelenko (d.khmelenko@gmail.com)
 */
public class TestMvpPresenter {

    private MvpPresenter<MvpView> mPresenter;
    private MvpView mView;

    @Before
    public void setup() {
        mPresenter = spy(MvpPresenter.class);
        mView = mock(SearchResultsView.class);
    }

    @Test
    public void testAttachDetach() {
        mPresenter.attach(mView);
        verify(mPresenter).onAttach();
        assertNotNull(mPresenter.getView());

        mPresenter.detach();
        verify(mPresenter).onDetach();
        assertNull(mPresenter.getView());
    }

}