design/tests/src/android/support/design/widget/BottomSheetBehaviorInitialStateTest.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.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.core.Is.is;

import android.content.Context;
import android.content.Intent;
import android.support.test.InstrumentationRegistry;
import android.support.test.rule.ActivityTestRule;
import android.support.test.runner.AndroidJUnit4;

import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;

@RunWith(AndroidJUnit4.class)
public class BottomSheetBehaviorInitialStateTest {

    @Rule
    public final ActivityTestRule<BottomSheetBehaviorActivity> mActivityTestRule
            = new ActivityTestRule<>(BottomSheetBehaviorActivity.class, true, false);

    @Test
    public void testSetStateExpanded() {
        Context context = InstrumentationRegistry.getInstrumentation().getTargetContext();
        Intent intent = new Intent(context, BottomSheetBehaviorActivity.class);
        intent.putExtra(BottomSheetBehaviorActivity.EXTRA_INITIAL_STATE,
                BottomSheetBehavior.STATE_EXPANDED);
        mActivityTestRule.launchActivity(intent);
        BottomSheetBehaviorActivity activity = mActivityTestRule.getActivity();
        assertThat(activity.mBehavior.getState(), is(BottomSheetBehavior.STATE_EXPANDED));
        assertThat(activity.mBottomSheet.getTop(), is(0));
    }


    @Test
    public void testSetStateHidden() {
        Context context = InstrumentationRegistry.getInstrumentation().getTargetContext();
        Intent intent = new Intent(context, BottomSheetBehaviorActivity.class);
        intent.putExtra(BottomSheetBehaviorActivity.EXTRA_INITIAL_STATE,
                BottomSheetBehavior.STATE_HIDDEN);
        mActivityTestRule.launchActivity(intent);
        BottomSheetBehaviorActivity activity = mActivityTestRule.getActivity();
        assertThat(activity.mBehavior.getState(), is(BottomSheetBehavior.STATE_HIDDEN));
        assertThat(activity.mBottomSheet.getTop(), is(activity.mCoordinatorLayout.getHeight()));
    }

}