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LocalUnitTest.java

/*
 * Copyright 2015, The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.android.testing.blueprint;

import android.app.Activity;
import android.app.Application;
import android.bluetooth.BluetoothAdapter;

import org.junit.Test;

import java.io.File;

import static junit.framework.TestCase.assertTrue;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.notNullValue;
import static org.junit.Assert.assertThat;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyNoMoreInteractions;
import static org.mockito.Mockito.when;

/**
 * A test class with unit tests that mock classes from the Android framework.
 */
public class LocalUnitTest {

@Test
    public void mockFinalMethod() {
        Activity activity = mock(Activity.class);
        Application app = mock(Application.class);
        when(activity.getApplication()).thenReturn(app);

assertThat(app, is(equalTo(activity.getApplication())));

verify(activity).getApplication();
        verifyNoMoreInteractions(activity);
    }

@Test
    public void mockFinalClass() {
        BluetoothAdapter adapter = mock(BluetoothAdapter.class);
        when(adapter.isEnabled()).thenReturn(true);

assertTrue(adapter.isEnabled());

verify(adapter).isEnabled();
        verifyNoMoreInteractions(adapter);
    }

@Test
    public void loadTestDataFromResources() {
        File helloBleprintJson = new File(getClass().getResource("/helloBlueprint.json").getPath());
        assertThat(helloBleprintJson, notNullValue());
    }

}