SnackbarTestWithFAB.java

/*
 * Copyright (C) 2016 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 android.support.design.widget;

import static org.junit.Assert.assertEquals;

import android.support.design.test.R;
import android.support.design.testutils.SnackbarUtils;
import android.support.test.filters.MediumTest;
import android.view.View;

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

@MediumTest
public class SnackbarTestWithFAB extends BaseInstrumentationTestCase<SnackbarActivityWithFAB> {

    private static final String MESSAGE_TEXT = "Test Message";

    private CoordinatorLayout mCoordinatorLayout;

    public SnackbarTestWithFAB() {
        super(SnackbarActivityWithFAB.class);
    }

    @Before
    public void setup() {
        mCoordinatorLayout =
                (CoordinatorLayout) mActivityTestRule.getActivity().findViewById(R.id.col);
    }

    @Test
    public void testShortSnackbarDodgesFab() {
        final int[] originalFabPosition = new int[2];
        final View fab = mCoordinatorLayout.findViewById(R.id.fab);
        fab.getLocationOnScreen(originalFabPosition);

        // Show a simple Snackbar and wait for it to be shown
        final Snackbar snackbar = Snackbar.make(mCoordinatorLayout, MESSAGE_TEXT,
                Snackbar.LENGTH_SHORT);
        SnackbarUtils.showTransientBottomBarAndWaitUntilFullyShown(snackbar);

        // Now check that the FAB has shifted up to make space for the Snackbar
        final int[] fabPosition = new int[2];
        fab.getLocationOnScreen(fabPosition);
        assertEquals(originalFabPosition[0], fabPosition[0]);
        assertEquals(originalFabPosition[1] - snackbar.getView().getHeight(), fabPosition[1]);

        // Now wait until the Snackbar has been dismissed
        SnackbarUtils.waitUntilFullyDismissed(snackbar);

        // And check that the FAB is back in its original position
        fab.getLocationOnScreen(fabPosition);
        assertEquals(originalFabPosition[0], fabPosition[0]);
        assertEquals(originalFabPosition[1], fabPosition[1]);
    }

    @Test
    public void testIndefiniteSnackbarDodgesFab() throws Throwable {
        final int[] originalFabPosition = new int[2];
        final View fab = mCoordinatorLayout.findViewById(R.id.fab);
        fab.getLocationOnScreen(originalFabPosition);

        // Show a simple Snackbar and wait for it to be shown
        final Snackbar snackbar = Snackbar.make(mCoordinatorLayout, MESSAGE_TEXT,
                Snackbar.LENGTH_INDEFINITE);
        SnackbarUtils.showTransientBottomBarAndWaitUntilFullyShown(snackbar);

        // Now check that the FAB has shifted up to make space for the Snackbar
        final int[] fabPosition = new int[2];
        fab.getLocationOnScreen(fabPosition);
        assertEquals(originalFabPosition[0], fabPosition[0]);
        assertEquals(originalFabPosition[1] - snackbar.getView().getHeight(), fabPosition[1]);

        // Now dismiss the Snackbar and wait for it to be dismissed
        SnackbarUtils.dismissTransientBottomBarAndWaitUntilFullyDismissed(snackbar);

        // And check that the FAB is back in its original position
        fab.getLocationOnScreen(fabPosition);
        assertEquals(originalFabPosition[0], fabPosition[0]);
        assertEquals(originalFabPosition[1], fabPosition[1]);
    }

}