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/*******************************************************************************
* Copyright (c) 2008, 2010 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.p2.tests.core;
import org.eclipse.equinox.p2.query.MatchQuery;
import java.util.Arrays;
import java.util.List;
import junit.framework.TestCase;
import org.eclipse.equinox.p2.query.*;
import org.eclipse.equinox.p2.tests.AbstractProvisioningTest;
/**
* Tests for the {@link org.eclipse.equinox.internal.provisional.p2.query.Query} class.
*/
public class QueryTest extends TestCase {
static class AnyStringQuery extends MatchQuery {
@Override
public boolean isMatch(Object candidate) {
return candidate instanceof String;
}
}
/**
* Tests a simple perform where all items match.
*/
public void testPerformSimple() {
List items = Arrays.asList("red", "green", "blue");
IQuery query = new AnyStringQuery();
IQueryResult collector = query.perform(items.iterator());
assertEquals("1.0", 3, AbstractProvisioningTest.queryResultSize(collector));
AbstractProvisioningTest.assertContains("1.1", collector, "red");
AbstractProvisioningTest.assertContains("1.2", collector, "green");
AbstractProvisioningTest.assertContains("1.3", collector, "blue");
}
/**
* Tests a perform where only some items match.
*/
public void testPerformSomeMatches() {
List items = Arrays.asList(new Object(), "green", new Object());
IQuery query = new AnyStringQuery();
IQueryResult collector = query.perform(items.iterator());
assertEquals("1.0", 1, AbstractProvisioningTest.queryResultSize(collector));
AbstractProvisioningTest.assertContains("1.1", collector, "green");
}
public void testLimitQuery() {
List items = Arrays.asList("red", "green", "blue");
IQuery query = new AnyStringQuery();
IQuery limitQuery = QueryUtil.createLimitQuery(query, 1);
IQueryResult collector = limitQuery.perform(items.iterator());
assertEquals("1.0", 1, AbstractProvisioningTest.queryResultSize(collector));
AbstractProvisioningTest.assertContains("1.1", collector, "red");
}
public void testLimitQuery2() {
List items = Arrays.asList("red", "green", "blue");
IQuery query = new AnyStringQuery();
IQuery limitQuery = QueryUtil.createLimitQuery(query, 2);
IQueryResult collector = limitQuery.perform(items.iterator());
assertEquals("1.0", 2, AbstractProvisioningTest.queryResultSize(collector));
AbstractProvisioningTest.assertContains("1.1", collector, "red");
AbstractProvisioningTest.assertContains("1.2", collector, "green");
}
public void testLimitQuery3() {
List items = Arrays.asList("red", "green", "blue");
IQuery query = new AnyStringQuery();
IQuery limitQuery = QueryUtil.createLimitQuery(query, 3);
IQueryResult collector = limitQuery.perform(items.iterator());
assertEquals("1.0", 3, AbstractProvisioningTest.queryResultSize(collector));
AbstractProvisioningTest.assertContains("1.1", collector, "red");
AbstractProvisioningTest.assertContains("1.2", collector, "green");
AbstractProvisioningTest.assertContains("1.3", collector, "blue");
}
public void testLimitQuery0() {
List items = Arrays.asList("red", "green", "blue");
IQuery query = new AnyStringQuery();
IQuery limitQuery = QueryUtil.createLimitQuery(query, 0);
IQueryResult collector = limitQuery.perform(items.iterator());
assertEquals("1.0", 0, AbstractProvisioningTest.queryResultSize(collector));
}
// public void testPipedLimitQuery() {
// List items = Arrays.asList("pink", "red", "green", "pink");
// IQuery anyString = new AnyStringQuery();
// IQuery containsI = new MatchQuery() {
//
// public boolean isMatch(Object candidate) {
// return ((String) candidate).contains("e");
// }
// };
// IQuery pipedQuery = new PipedQuery(new IQuery[] {anyString, containsI});
// IQuery limitQuery = LimitQuery.create(pipedQuery, 1);
// Collector collector = limitQuery.perform(items.iterator(), new Collector());
// Collection result = collector.toCollection();
// assertEquals("1.0", 1, result.size());
// assertTrue("1.1", result.contains("red"));
// }
}
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