/* | |
* Licensed to the Apache Software Foundation (ASF) under one | |
* or more contributor license agreements. See the NOTICE file | |
* distributed with this work for additional information | |
* regarding copyright ownership. The ASF licenses this file | |
* to you under the Apache License, Version 2.0 (the | |
* "License"); you may not use this file except in compliance | |
* with the License. You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, | |
* software distributed under the License is distributed on an | |
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
* KIND, either express or implied. See the License for the | |
* specific language governing permissions and limitations | |
* under the License. | |
*/ | |
package org.apache.directory.server.core.cursor; | |
import junit.framework.TestCase; | |
import java.util.ArrayList; | |
import java.util.Collections; | |
import java.util.List; | |
/** | |
* Tests the ListCursor class. The assertXxxx() methods defined in this class | |
* can be collected in an abstract test case class that can be used to test | |
* the behavior of any Cursor implementation down the line. | |
* | |
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> | |
* @version $Rev$, $Date$ | |
*/ | |
public class ListCursorTest extends TestCase | |
{ | |
public void testEmptyList() throws Exception | |
{ | |
ListCursor<String> cursor = new ListCursor<String>(); | |
// close test | |
cursor.close(); | |
assertClosed( cursor, "cursor.isCloased() should return true after closing the cursor", true ); | |
} | |
public void testSingleElementList() throws Exception | |
{ | |
ListCursor<String> cursor = new ListCursor<String>( Collections.singletonList( "singleton" ) ); | |
cursor.close(); | |
// close test | |
cursor.close(); | |
assertClosed( cursor, "cursor.isCloased() should return true after closing the cursor", true ); | |
// bad bounds: start = end is senseless | |
try | |
{ | |
cursor = new ListCursor<String>( Collections.singletonList( "singleton" ), 0 ); | |
cursor.close(); | |
fail( "when the start = end bounds this is senseless and should complain" ); | |
} | |
catch ( IllegalArgumentException e ) | |
{ | |
assertNotNull( e ); | |
} | |
// bad bounds: start = end is senseless | |
try | |
{ | |
cursor = new ListCursor<String>( 1, Collections.singletonList( "singleton" ) ); | |
cursor.close(); | |
fail( "when the start = end bounds this is senseless and should complain" ); | |
} | |
catch ( IllegalArgumentException e ) | |
{ | |
assertNotNull( e ); | |
} | |
// bad bounds: start > end is senseless | |
try | |
{ | |
cursor = new ListCursor<String>( 5, Collections.singletonList( "singleton" ) ); | |
cursor.close(); | |
fail( "when the start = end bounds this is senseless and should complain" ); | |
} | |
catch ( IllegalArgumentException e ) | |
{ | |
assertNotNull( e ); | |
} | |
// bad bounds: end < start is senseless too in another way :) | |
try | |
{ | |
cursor = new ListCursor<String>( Collections.singletonList( "singleton" ), -5 ); | |
cursor.close(); | |
fail( "when the start = end bounds this is senseless and should complain" ); | |
} | |
catch ( IllegalArgumentException e ) | |
{ | |
assertNotNull( e ); | |
} | |
// bad bounds: start out of range | |
try | |
{ | |
cursor = new ListCursor<String>( -5, Collections.singletonList( "singleton" ) ); | |
cursor.close(); | |
fail( "when the start = end bounds this is senseless and should complain" ); | |
} | |
catch ( IllegalArgumentException e ) | |
{ | |
assertNotNull( e ); | |
} | |
// bad bounds: end out of range | |
try | |
{ | |
cursor = new ListCursor<String>( Collections.singletonList( "singleton" ), 5 ); | |
cursor.close(); | |
fail( "when the start = end bounds this is senseless and should complain" ); | |
} | |
catch ( IllegalArgumentException e ) | |
{ | |
assertNotNull( e ); | |
} | |
} | |
public void testManyElementList() throws Exception | |
{ | |
List<String> list = new ArrayList<String>(); | |
list.add( "item 1" ); | |
list.add( "item 2" ); | |
list.add( "item 3" ); | |
list.add( "item 4" ); | |
list.add( "item 5" ); | |
// test with bounds of the list itself | |
ListCursor<String> cursor = new ListCursor<String>( list ); | |
cursor.close(); | |
// test with nonzero lower bound | |
cursor = new ListCursor<String>( 1, list ); | |
cursor.close(); | |
// test with nonzero lower bound and upper bound | |
cursor = new ListCursor<String>( 1, list, 4 ); | |
// close test | |
cursor.close(); | |
assertClosed( cursor, "cursor.isCloased() should return true after closing the cursor", true ); | |
// bad bounds: start = end is senseless | |
try | |
{ | |
cursor = new ListCursor<String>( list, 0 ); | |
cursor.close(); | |
fail( "when the start = end bounds this is senseless and should complain" ); | |
} | |
catch ( IllegalArgumentException e ) | |
{ | |
assertNotNull( e ); | |
} | |
// bad bounds: start = end is senseless | |
try | |
{ | |
cursor = new ListCursor<String>( 5, list ); | |
cursor.close(); | |
fail( "when the start = end bounds this is senseless and should complain" ); | |
} | |
catch ( IllegalArgumentException e ) | |
{ | |
assertNotNull( e ); | |
} | |
// bad bounds: start > end is senseless | |
try | |
{ | |
cursor = new ListCursor<String>( 10, list ); | |
cursor.close(); | |
fail( "when the start = end bounds this is senseless and should complain" ); | |
} | |
catch ( IllegalArgumentException e ) | |
{ | |
assertNotNull( e ); | |
} | |
// bad bounds: end < start is senseless too in another way :) | |
try | |
{ | |
cursor = new ListCursor<String>( list, -5 ); | |
cursor.close(); | |
fail( "when the start = end bounds this is senseless and should complain" ); | |
} | |
catch ( IllegalArgumentException e ) | |
{ | |
assertNotNull( e ); | |
} | |
// bad bounds: start out of range | |
try | |
{ | |
cursor = new ListCursor<String>( -5, list ); | |
cursor.close(); | |
fail( "when the start = end bounds this is senseless and should complain" ); | |
} | |
catch ( IllegalArgumentException e ) | |
{ | |
assertNotNull( e ); | |
} | |
// bad bounds: end out of range | |
try | |
{ | |
cursor = new ListCursor<String>( list, 10 ); | |
cursor.close(); | |
fail( "when the start = end bounds this is senseless and should complain" ); | |
} | |
catch ( IllegalArgumentException e ) | |
{ | |
assertNotNull( e ); | |
} | |
} | |
protected void assertClosed( Cursor cursor, String msg, boolean expected ) | |
{ | |
try | |
{ | |
assertEquals( msg, expected, cursor.isClosed() ); | |
} | |
catch ( Exception e ) | |
{ | |
fail( "cursor.isClosed() test should not fail after closing the cursor" ); | |
} | |
try | |
{ | |
cursor.close(); | |
} | |
catch ( Exception e ) | |
{ | |
fail( "cursor.close() after closing the cursor should not fail with exceptions" ); | |
} | |
try | |
{ | |
cursor.afterLast(); | |
fail( "cursor.afterLast() after closing the cursor should fail with an IOException" ); | |
} | |
catch ( Exception e ) | |
{ | |
assertNotNull( e ); | |
} | |
try | |
{ | |
cursor.beforeFirst(); | |
fail( "cursor.beforeFirst() after closing the cursor should fail with an IOException" ); | |
} | |
catch ( Exception e ) | |
{ | |
assertNotNull( e ); | |
} | |
try | |
{ | |
cursor.first(); | |
fail( "cursor.first() after closing the cursor should fail with an IOException" ); | |
} | |
catch ( Exception e ) | |
{ | |
assertNotNull( e ); | |
} | |
try | |
{ | |
cursor.get(); | |
fail( "cursor.get() after closing the cursor should fail with an IOException" ); | |
} | |
catch ( Exception e ) | |
{ | |
assertNotNull( e ); | |
} | |
try | |
{ | |
cursor.last(); | |
fail( "cursor.last() after closing the cursor should fail with an IOException" ); | |
} | |
catch ( Exception e ) | |
{ | |
assertNotNull( e ); | |
} | |
try | |
{ | |
cursor.next(); | |
fail( "cursor.next() after closing the cursor should fail with an IOException" ); | |
} | |
catch ( Exception e ) | |
{ | |
assertNotNull( e ); | |
} | |
try | |
{ | |
cursor.previous(); | |
fail( "cursor.previous() after closing the cursor should fail with an IOException" ); | |
} | |
catch ( Exception e ) | |
{ | |
assertNotNull( e ); | |
} | |
} | |
} |