DimensionConsistencyTest.java revision 46216d0e61318e7af168e9e903ef8d943bb49b2e 
1/*
2 * Copyright (C) 2017 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 com.android.setupwizardlib.util;
18
19import static org.junit.Assert.assertEquals;
20import static org.robolectric.RuntimeEnvironment.application;
21
22import android.content.Context;
23import android.content.res.Resources;
24import android.util.DisplayMetrics;
25import android.util.TypedValue;
26import android.view.ContextThemeWrapper;
27
28import com.android.setupwizardlib.BuildConfig;
29import com.android.setupwizardlib.R;
30import com.android.setupwizardlib.robolectric.SuwLibRobolectricTestRunner;
31
32import org.junit.Before;
33import org.junit.Test;
34import org.junit.runner.RunWith;
35import org.robolectric.annotation.Config;
36
37@RunWith(SuwLibRobolectricTestRunner.class)
38@Config(constants = BuildConfig.class, sdk = Config.ALL_SDKS)
39public class DimensionConsistencyTest {
40
41    // Visual height of the framework switch widget
42    private static final int SWTICH_HEIGHT_DP = 26;
43
44    private Context mContext;
45
46    @Before
47    public void setUp() {
48        mContext = new ContextThemeWrapper(application, R.style.SuwThemeGlif_Light);
49    }
50
51    @Test
52    public void testSwitchPaddingTop() {
53        final Resources res = mContext.getResources();
54
55        assertEquals(
56                "Switch and divider should be aligned at center vertically: "
57                        + "suw_switch_padding_top + SWITCH_HEIGHT / 2 = "
58                        + "suw_switch_divider_padding_top + suw_switch_divider_height / 2",
59                res.getDimensionPixelSize(R.dimen.suw_switch_divider_padding_top)
60                        + (res.getDimensionPixelSize(R.dimen.suw_switch_divider_height) / 2),
61                res.getDimensionPixelSize(R.dimen.suw_switch_padding_top)
62                        + (dp2Px(SWTICH_HEIGHT_DP) / 2));
63    }
64
65    private int dp2Px(float dp) {
66        DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics();
67        return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, displayMetrics);
68    }
69}
70