1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.support.design.testutils;
18
19import android.support.design.widget.AppBarLayout;
20
21import org.hamcrest.Description;
22import org.hamcrest.Matcher;
23import org.hamcrest.TypeSafeMatcher;
24
25public class AppBarLayoutMatchers {
26
27    /**
28     * Returns a matcher that matches AppBarLayouts which are collapsed.
29     */
30    public static Matcher isCollapsed() {
31        return new TypeSafeMatcher<AppBarLayout>() {
32            @Override
33            public void describeTo(Description description) {
34                description.appendText("AppBarLayout is collapsed");
35            }
36
37            @Override
38            protected boolean matchesSafely(AppBarLayout item) {
39                return item.getBottom() == (item.getHeight() - item.getTotalScrollRange());
40            }
41        };
42    }
43
44}
45