TextViewCompatTest.java revision 92ad16973b68f0586c585da428946d851a7611bb 
1/*
2 * Copyright (C) 2015 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
17
18package android.support.v4.widget;
19
20import org.junit.After;
21import org.junit.Before;
22import org.junit.Test;
23import org.junit.runner.RunWith;
24
25import android.app.Instrumentation;
26import android.content.res.Resources;
27import android.graphics.Typeface;
28import android.os.Looper;
29import android.test.ActivityInstrumentationTestCase2;
30import android.test.UiThreadTest;
31import android.test.suitebuilder.annotation.SmallTest;
32import android.support.annotation.LayoutRes;
33import android.support.test.InstrumentationRegistry;
34import android.support.v4.test.R;
35import android.support.v4.widget.TextViewCompat;
36import android.util.Log;
37import android.view.LayoutInflater;
38import android.widget.TextView;
39
40import android.support.test.runner.AndroidJUnit4;
41
42public class TextViewCompatTest extends ActivityInstrumentationTestCase2<TestActivity> {
43    private static final String TAG = "TextViewCompatTest";
44
45    private TextView mTextView;
46
47    public TextViewCompatTest() {
48        super("android.support.v4.widget", TestActivity.class);
49    }
50
51    @Override
52    public void tearDown() throws Exception {
53        if (mTextView != null) {
54            removeTextView();
55        }
56
57        getInstrumentation().waitForIdleSync();
58        super.tearDown();
59    }
60
61    private boolean isMainThread() {
62        return Looper.myLooper() == Looper.getMainLooper();
63    }
64
65    private void removeTextView() {
66        if (mTextView == null) {
67            return;
68        }
69        if (!isMainThread()) {
70            getInstrumentation().waitForIdleSync();
71        }
72        try {
73            runTestOnUiThread(new Runnable() {
74                @Override
75                public void run() {
76                    getActivity().mContainer.removeAllViews();
77                }
78            });
79        } catch (Throwable throwable) {
80            Log.e(TAG, "", throwable);
81        }
82        mTextView = null;
83    }
84
85    private void createAndAddTextView() {
86        final TestActivity activity = getActivity();
87        mTextView = new TextView(activity);
88        activity.mContainer.addView(mTextView);
89    }
90
91    @UiThreadTest
92    @SmallTest
93    public void testMaxLines() throws Throwable {
94        createAndAddTextView();
95        final int maxLinesCount = 4;
96        mTextView.setMaxLines(maxLinesCount);
97
98        assertEquals("Empty view: Max lines must match", TextViewCompat.getMaxLines(mTextView),
99                maxLinesCount);
100
101        mTextView.setText(R.string.test_text_short);
102        assertEquals("Short text: Max lines must match", TextViewCompat.getMaxLines(mTextView),
103                maxLinesCount);
104
105        mTextView.setText(R.string.test_text_medium);
106        assertEquals("Medium text: Max lines must match", TextViewCompat.getMaxLines(mTextView),
107                maxLinesCount);
108
109        mTextView.setText(R.string.test_text_long);
110        assertEquals("Long text: Max lines must match", TextViewCompat.getMaxLines(mTextView),
111                maxLinesCount);
112    }
113
114    @UiThreadTest
115    @SmallTest
116    public void testMinLines() throws Throwable {
117        createAndAddTextView();
118        final int minLinesCount = 3;
119        mTextView.setMinLines(minLinesCount);
120
121        assertEquals("Empty view: Min lines must match", TextViewCompat.getMinLines(mTextView),
122                minLinesCount);
123
124        mTextView.setText(R.string.test_text_short);
125        assertEquals("Short text: Min lines must match", TextViewCompat.getMinLines(mTextView),
126                minLinesCount);
127
128        mTextView.setText(R.string.test_text_medium);
129        assertEquals("Medium text: Min lines must match", TextViewCompat.getMinLines(mTextView),
130                minLinesCount);
131
132        mTextView.setText(R.string.test_text_long);
133        assertEquals("Long text: Min lines must match", TextViewCompat.getMinLines(mTextView),
134                minLinesCount);
135    }
136
137    @UiThreadTest
138    @SmallTest
139    public void testStyle() throws Throwable {
140        createAndAddTextView();
141
142        TextViewCompat.setTextAppearance(mTextView, R.style.TextMediumStyle);
143
144        final Resources res = getActivity().getResources();
145        assertEquals("Styled text view: style", mTextView.getTypeface().getStyle(),
146                Typeface.ITALIC);
147        assertEquals("Styled text view: color", mTextView.getTextColors().getDefaultColor(),
148                res.getColor(R.color.text_color));
149        assertEquals("Styled text view: size", mTextView.getTextSize(),
150                res.getDimension(R.dimen.text_medium_size));
151    }
152}
153