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.widget;
18
19import java.util.Arrays;
20import java.util.Collection;
21import java.util.Locale;
22import java.util.Random;
23
24import org.junit.Rule;
25import org.junit.Test;
26import org.junit.runner.RunWith;
27import org.junit.runners.Parameterized;
28import org.junit.runners.Parameterized.Parameters;
29
30import android.app.Activity;
31import android.graphics.Bitmap;
32import android.graphics.Canvas;
33import android.util.Log;
34import android.view.KeyEvent;
35import android.view.RenderNodeAnimator;
36import android.view.ViewGroup;
37import android.view.View.MeasureSpec;
38
39import android.perftests.utils.BenchmarkState;
40import android.perftests.utils.PerfStatusReporter;
41import android.perftests.utils.StubActivity;
42import android.support.test.filters.LargeTest;
43import android.support.test.runner.AndroidJUnit4;
44import android.support.test.rule.ActivityTestRule;
45import android.support.test.InstrumentationRegistry;
46
47@LargeTest
48@RunWith(Parameterized.class)
49public class EditTextLongTextPerfTest {
50    @Parameters(name = "{0}")
51    public static Collection cases() {
52        return Arrays.asList(new Object[][] {
53            { "10x30K", 10, 30000 },
54            { "300x1K", 300, 1000 },
55        });
56    }
57
58    private final String mMetricKey;
59    private final int mChars;
60    private final int mLines;
61
62    public EditTextLongTextPerfTest(String metricKey, int chars, int lines) {
63        mMetricKey = metricKey;
64        mChars = chars;
65        mLines = lines;
66    }
67
68    @Rule
69    public ActivityTestRule<StubActivity> mActivityRule = new ActivityTestRule(StubActivity.class);
70
71    @Rule
72    public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
73
74    private EditText setupEditText() {
75        final EditText editText = new EditText(mActivityRule.getActivity());
76
77        String alphabet = "abcdefghijklmnopqrstuvwxyz";
78        final long seed = 1234567890;
79        Random r = new Random(seed);
80        StringBuilder sb = new StringBuilder();
81        for (int i = 0; i < mLines; i++) {
82            for (int j = 0; j < mChars; j++) {
83                char c = alphabet.charAt(r.nextInt(alphabet.length()));
84                sb.append(c);
85            }
86            sb.append('\n');
87        }
88
89        final int height = 1000;
90        final int width = 1000;
91        editText.setHeight(height);
92        editText.setWidth(width);
93        editText.setLayoutParams(new ViewGroup.LayoutParams(width, height));
94
95        Activity activity = mActivityRule.getActivity();
96        activity.setContentView(editText);
97
98        editText.setText(sb.toString(), TextView.BufferType.EDITABLE);
99        editText.invalidate();
100        editText.measure(MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY),
101                         MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY));
102        editText.layout(0, 0, height, width);
103
104        return editText;
105    }
106
107    @Test
108    public void testEditText() throws Throwable {
109        mActivityRule.runOnUiThread(() -> {
110            BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
111            final EditText editText = setupEditText();
112            final KeyEvent keyEvent = new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER);
113            final int steps = 100;
114            while (state.keepRunning()) {
115                for (int i = 0; i < steps; i++) {
116                    int offset = (editText.getText().length() * i) / steps;
117                    editText.setSelection(offset);
118                    editText.bringPointIntoView(offset);
119                    editText.onKeyDown(keyEvent.getKeyCode(), keyEvent);
120                    editText.updateDisplayListIfDirty();
121                }
122            }
123        });
124    }
125}
126