ConsecutiveTapsGestureDetectorTest.java revision f2c8c89ad6048dd304f36928f1cddacbe7dbd920 
1/*
2 * Copyright (C) 2018 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.gesture;
18
19import static org.mockito.Matchers.eq;
20import static org.mockito.Mockito.inOrder;
21import static org.robolectric.RuntimeEnvironment.application;
22
23import android.view.MotionEvent;
24import android.view.View;
25import android.view.ViewConfiguration;
26
27import com.android.setupwizardlib.robolectric.SuwLibRobolectricTestRunner;
28
29import org.junit.Before;
30import org.junit.Test;
31import org.junit.runner.RunWith;
32import org.mockito.InOrder;
33import org.mockito.Mock;
34import org.mockito.MockitoAnnotations;
35import org.robolectric.annotation.Config;
36
37@Config(sdk = { Config.OLDEST_SDK, Config.NEWEST_SDK })
38@RunWith(SuwLibRobolectricTestRunner.class)
39public class ConsecutiveTapsGestureDetectorTest {
40
41    @Mock
42    private ConsecutiveTapsGestureDetector.OnConsecutiveTapsListener mListener;
43
44    private ConsecutiveTapsGestureDetector mDetector;
45    private int mSlop;
46    private int mTapTimeout;
47
48    @Before
49    public void setUp() {
50        MockitoAnnotations.initMocks(this);
51
52        View view = new View(application);
53        view.measure(500, 500);
54        view.layout(0, 0, 500, 500);
55        mDetector = new ConsecutiveTapsGestureDetector(mListener, view);
56
57        mSlop = ViewConfiguration.get(application).getScaledDoubleTapSlop();
58        mTapTimeout = ViewConfiguration.getDoubleTapTimeout();
59    }
60
61    @Test
62    public void onTouchEvent_shouldTriggerCallbackOnFourTaps() {
63        InOrder inOrder = inOrder(mListener);
64
65        tap(0, 25f, 25f);
66        inOrder.verify(mListener).onConsecutiveTaps(eq(1));
67
68        tap(100, 25f, 25f);
69        inOrder.verify(mListener).onConsecutiveTaps(eq(2));
70
71        tap(200, 25f, 25f);
72        inOrder.verify(mListener).onConsecutiveTaps(eq(3));
73
74        tap(300, 25f, 25f);
75        inOrder.verify(mListener).onConsecutiveTaps(eq(4));
76    }
77
78    @Test
79    public void onTouchEvent_tapOnDifferentLocation_shouldResetCounter() {
80        InOrder inOrder = inOrder(mListener);
81
82        tap(0, 25f, 25f);
83        inOrder.verify(mListener).onConsecutiveTaps(eq(1));
84
85        tap(100, 25f, 25f);
86        inOrder.verify(mListener).onConsecutiveTaps(eq(2));
87
88        tap(200, 25f + mSlop * 2, 25f);
89        inOrder.verify(mListener).onConsecutiveTaps(eq(1));
90
91        tap(300, 25f + mSlop * 2, 25f);
92        inOrder.verify(mListener).onConsecutiveTaps(eq(2));
93    }
94
95    @Test
96    public void onTouchEvent_tapAfterTimeout_shouldResetCounter() {
97        InOrder inOrder = inOrder(mListener);
98
99        tap(0, 25f, 25f);
100        inOrder.verify(mListener).onConsecutiveTaps(eq(1));
101
102        tap(100, 25f, 25f);
103        inOrder.verify(mListener).onConsecutiveTaps(eq(2));
104
105        tap(200 + mTapTimeout, 25f, 25f);
106        inOrder.verify(mListener).onConsecutiveTaps(eq(1));
107
108        tap(300 + mTapTimeout, 25f, 25f);
109        inOrder.verify(mListener).onConsecutiveTaps(eq(2));
110    }
111
112    private void tap(int timeMillis, float x, float y) {
113        mDetector.onTouchEvent(
114                MotionEvent.obtain(timeMillis, timeMillis, MotionEvent.ACTION_DOWN, x, y, 0));
115        mDetector.onTouchEvent(
116                MotionEvent.obtain(timeMillis, timeMillis + 10, MotionEvent.ACTION_UP, x, y, 0));
117    }
118}
119