test/com/xtremelabs/droidsugar/view/ViewLoaderTest.java

package com.xtremelabs.droidsugar.view;

import android.test.mock.MockContext;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
import com.google.android.maps.MapView;
import com.xtremelabs.droidsugar.DroidSugarAndroidTestRunner;
import com.xtremelabs.droidsugar.R;
import com.xtremelabs.droidsugar.util.TestUtil;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;

import java.io.File;

import static android.test.MoreAsserts.assertNotEqual;
import static org.junit.Assert.assertSame;

@RunWith(DroidSugarAndroidTestRunner.class)
public class ViewLoaderTest {
    private ViewLoader viewLoader;
    private MockContext context;

    @Before
    public void setUp() throws Exception {
        DroidSugarAndroidTestRunner.addProxy(View.class, FakeView.class);
        DroidSugarAndroidTestRunner.addProxy(ViewGroup.class, FakeViewGroup.class);

        ResourceExtractor resourceExtractor = new ResourceExtractor();
        resourceExtractor.addRClass(R.class);
        viewLoader = new ViewLoader(resourceExtractor);
        viewLoader.loadDirs(new File("test/res/layout"));

        context = new MockContext();
    }

    @Test
    public void testCreatesCorrectClasses() throws Exception {
        ViewGroup view = (ViewGroup) viewLoader.inflateView(context, "layout/media");
        TestUtil.assertInstanceOf(LinearLayout.class, view);

        assertSame(context, view.getContext());
    }

    @Test
    public void testAddsChildren() throws Exception {
        ViewGroup view = (ViewGroup) viewLoader.inflateView(context, "layout/media");
        assertNotEqual(0, view.getChildCount());

        assertSame(context, view.getChildAt(0).getContext());
    }

    @Test
    public void testFindsChildrenById() throws Exception {
        ViewGroup mediaView = (ViewGroup) viewLoader.inflateView(context, "layout/media");
        TestUtil.assertInstanceOf(TextView.class, mediaView.findViewById(R.id.title));

        ViewGroup mainView = (ViewGroup) viewLoader.inflateView(context, "layout/main");
        TestUtil.assertInstanceOf(View.class, mainView.findViewById(R.id.title));
    }

    @Test
    public void testInclude() throws Exception {
        ViewGroup mediaView = (ViewGroup) viewLoader.inflateView(context, "layout/media");
        TestUtil.assertInstanceOf(TextView.class, mediaView.findViewById(R.id.snippet_text));
    }

    @Test
    public void testMerge() throws Exception {
        ViewGroup mediaView = (ViewGroup) viewLoader.inflateView(context, "layout/outer");
        TestUtil.assertInstanceOf(TextView.class, mediaView.findViewById(R.id.inner_text));
    }

    @Test
    public void testViewGroupsLooksAtItsOwnId() throws Exception {
        TextView mediaView = (TextView) viewLoader.inflateView(context, "layout/snippet");
        assertSame(mediaView, mediaView.findViewById(R.id.snippet_text));
    }

    @Test
    public void testMapView() throws Exception {
        RelativeLayout mainView = (RelativeLayout) viewLoader.inflateView(context, "layout/mapview");
        TestUtil.assertInstanceOf(MapView.class,  mainView.findViewById(R.id.map_view));
    }
}