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      1 /*
      2  * Copyright (C) 2009 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 android.database.sqlite.cts;
     18 
     19 import android.database.sqlite.SQLiteClosable;
     20 import android.test.AndroidTestCase;
     21 
     22 public class SQLiteClosableTest extends AndroidTestCase {
     23     private class MockSQLiteClosable extends SQLiteClosable {
     24         private boolean mOnAllReferencesReleasedCalled = false;
     25         private boolean mOnAllReferencesReleasedFromContainerCalled = false;
     26 
     27         @Override
     28         protected void onAllReferencesReleased() {
     29             mOnAllReferencesReleasedCalled = true;
     30         }
     31 
     32         protected void onAllReferencesReleasedFromContainer() {
     33             mOnAllReferencesReleasedFromContainerCalled = true;
     34         }
     35 
     36         public boolean isOnAllReferencesReleasedCalled() {
     37             return mOnAllReferencesReleasedCalled;
     38         }
     39 
     40         public boolean isOnAllReferencesReleasedFromContainerCalled() {
     41             return mOnAllReferencesReleasedFromContainerCalled;
     42         }
     43     }
     44 
     45     public void testAcquireReference() {
     46         MockSQLiteClosable closable = new MockSQLiteClosable();
     47 
     48         closable.acquireReference();
     49         closable.releaseReference();
     50 
     51         assertFalse(closable.isOnAllReferencesReleasedCalled());
     52         closable.releaseReference();
     53         // the reference count is 0 now.
     54         assertTrue(closable.isOnAllReferencesReleasedCalled());
     55 
     56         try {
     57             closable.acquireReference();
     58             fail("should throw IllegalStateException.");
     59         } catch (IllegalStateException e) {
     60         }
     61     }
     62 
     63     public void testReleaseReferenceFromContainer() {
     64         MockSQLiteClosable closable = new MockSQLiteClosable();
     65 
     66         closable.acquireReference();
     67         closable.releaseReferenceFromContainer();
     68 
     69         // the reference count is 1 now.
     70         assertFalse(closable.isOnAllReferencesReleasedFromContainerCalled());
     71         closable.releaseReferenceFromContainer();
     72         // the reference count is 0 now.
     73         assertTrue(closable.isOnAllReferencesReleasedFromContainerCalled());
     74     }
     75 }
     76