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      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 
     17 package com.android.inputmethod.latin.utils;
     18 
     19 import android.test.AndroidTestCase;
     20 import android.test.suitebuilder.annotation.MediumTest;
     21 import android.util.Log;
     22 
     23 @MediumTest
     24 public class AsyncResultHolderTests extends AndroidTestCase {
     25     private 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 <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<Integer>();
     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<Integer>();
     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<Integer>();
     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<Integer>();
     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