1/*
2 * Copyright (C) 2013 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.inputmethod.latin.utils;
18
19import android.test.AndroidTestCase;
20import android.test.suitebuilder.annotation.MediumTest;
21import android.util.Log;
22
23@MediumTest
24public class AsyncResultHolderTests extends AndroidTestCase {
25    static final String TAG = AsyncResultHolderTests.class.getSimpleName();
26
27    private static final int TIMEOUT_IN_MILLISECONDS = 500;
28    private static final int MARGIN_IN_MILLISECONDS = 250;
29    private static final int DEFAULT_VALUE = 2;
30    private static final int SET_VALUE = 1;
31
32    private static <T> void setAfterGivenTime(final AsyncResultHolder<T> holder, final T value,
33            final long time) {
34        new Thread(new Runnable() {
35            @Override
36            public void run() {
37                try {
38                    Thread.sleep(time);
39                } catch (InterruptedException e) {
40                    Log.d(TAG, "Exception while sleeping", e);
41                }
42                holder.set(value);
43            }
44        }).start();
45    }
46
47    public void testGetWithoutSet() {
48        final AsyncResultHolder<Integer> holder = new AsyncResultHolder<>("Test");
49        final int resultValue = holder.get(DEFAULT_VALUE, TIMEOUT_IN_MILLISECONDS);
50        assertEquals(DEFAULT_VALUE, resultValue);
51    }
52
53    public void testGetBeforeSet() {
54        final AsyncResultHolder<Integer> holder = new AsyncResultHolder<>("Test");
55        setAfterGivenTime(holder, SET_VALUE, TIMEOUT_IN_MILLISECONDS + MARGIN_IN_MILLISECONDS);
56        final int resultValue = holder.get(DEFAULT_VALUE, TIMEOUT_IN_MILLISECONDS);
57        assertEquals(DEFAULT_VALUE, resultValue);
58    }
59
60    public void testGetAfterSet() {
61        final AsyncResultHolder<Integer> holder = new AsyncResultHolder<>("Test");
62        holder.set(SET_VALUE);
63        final int resultValue = holder.get(DEFAULT_VALUE, TIMEOUT_IN_MILLISECONDS);
64        assertEquals(SET_VALUE, resultValue);
65    }
66
67    public void testGetBeforeTimeout() {
68        final AsyncResultHolder<Integer> holder = new AsyncResultHolder<>("Test");
69        setAfterGivenTime(holder, SET_VALUE, TIMEOUT_IN_MILLISECONDS - MARGIN_IN_MILLISECONDS);
70        final int resultValue = holder.get(DEFAULT_VALUE, TIMEOUT_IN_MILLISECONDS);
71        assertEquals(SET_VALUE, resultValue);
72    }
73}
74