src/test/java/org/robolectric/tester/android/view/TestWindowTest.java

package org.robolectric.tester.android.view;

import android.view.View;
import android.view.ViewGroup;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.R;
import org.robolectric.Robolectric;
import org.robolectric.TestRunners;

import static org.fest.assertions.api.Assertions.assertThat;

@RunWith(TestRunners.WithDefaults.class)
public class TestWindowTest {

    @Test
    public void windowManager__shouldNotBeNull() throws Exception {
        TestWindow window = new TestWindow(null);
        Assert.assertNotNull(window.getWindowManager());
    }

    @Test
    public void decorViewFindViewById__shouldReturnContentWrapper() throws Exception {
        TestWindow window = new TestWindow(Robolectric.application);
        View contentView = new View(Robolectric.application);
        contentView.setTag("content view");
        window.setContentView(contentView);

        // This is the real meat of the test. ActionBarSherlock relies on this code:
        //   window.getDecorView().findViewById(R.id.content)
        ViewGroup contentWrapper = (ViewGroup) window.getDecorView().findViewById(android.R.id.content);
        assertThat(contentWrapper.getChildCount()).isEqualTo(1).as("child count");
        assertThat(contentWrapper.getChildAt(0).getTag()).isEqualTo(contentView.getTag());
    }
    
    @Test public void setContentViewByResource() throws Exception {
        TestWindow window = new TestWindow(Robolectric.application);
        window.setContentView(R.layout.text_views);

        ViewGroup contentWrapper = (ViewGroup) window.findViewById(android.R.id.content);
        assertThat(contentWrapper.getChildCount()).isEqualTo(1).as("child count");
    }
}