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      1 /*
      2  * Copyright (C) 2010 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.quicksearchbox.util;
     18 
     19 import android.database.DataSetObserver;
     20 
     21 import junit.framework.Assert;
     22 
     23 /**
     24  * A {@link DataSetObserver} that knows whether it has been notified.
     25  */
     26 public class MockDataSetObserver extends DataSetObserver {
     27 
     28     private int mChangedCount = 0;
     29     private int mInvalidatedCount = 0;
     30 
     31     public void assertNotChanged() {
     32         Assert.assertFalse("onChanged() was called", mChangedCount > 0);
     33     }
     34 
     35     public void assertNotInvalidated() {
     36         Assert.assertFalse("onInvalidated() was called", mInvalidatedCount > 0);
     37     }
     38 
     39     public void assertChanged() {
     40         Assert.assertTrue("onChanged() was not called", mChangedCount > 0);
     41     }
     42 
     43     public void assertInvalidated() {
     44         Assert.assertTrue("onInvalidated() was not called", mInvalidatedCount > 0);
     45     }
     46 
     47     @Override
     48     public void onChanged() {
     49         mChangedCount++;
     50     }
     51 
     52     @Override
     53     public void onInvalidated() {
     54         mInvalidatedCount++;
     55     }
     56 
     57 }
     58