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/*******************************************************************************
* Copyright (c) 2008, 2017 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
* EclipseSource - ongoing development
*******************************************************************************/
package org.eclipse.equinox.p2.tests.core;
import java.util.*;
import org.eclipse.equinox.p2.query.*;
import org.eclipse.equinox.p2.tests.AbstractProvisioningTest;
/**
* Tests for {@link Collector}.
*/
public class CollectorTest extends AbstractProvisioningTest {
public void testAccept() {
Collector collector = new Collector();
String value = "value";
collector.accept(value);
Object[] result = collector.toArray(Object.class);
assertEquals("1.0", 1, result.length);
assertEquals("1.1", value, result[0]);
//adding a second copy of the same object is rejected
collector.accept(new String(value));
result = collector.toArray(Object.class);
assertEquals("1.0", 1, result.length);
assertEquals("1.1", value, result[0]);
}
public void testIsEmpty() {
Collector collector = new Collector();
assertEquals("1.0", true, collector.isEmpty());
collector.accept("value");
assertEquals("1.0", false, collector.isEmpty());
}
/**
* This tests the query method on the collector.
*/
public void testCompositeCollectors() {
String[] s = new String[] {"A", "B", "C", "D", "E", "F", "G", "1", "2", "3", "4", "5", "6", "7"};
List list = Arrays.asList(s);
IQuery numeric = new MatchQuery() {
@Override
public boolean isMatch(Object candidate) {
if (((String) candidate).compareTo("0") > 0 && ((String) candidate).compareTo("8") < 0) {
return true;
}
return false;
}
};
IQuery fourOrFiveOrABC = new MatchQuery() {
@Override
public boolean isMatch(Object candidate) {
if (((String) candidate).equals("4") || ((String) candidate).equals("5") || ((String) candidate).equals("A") || ((String) candidate).equals("B") || ((String) candidate).equals("C")) {
return true;
}
return false;
}
};
IQueryResult queryResult = numeric.perform(list.iterator());
assertEquals("1.0", 7, queryResultSize(queryResult));
queryResult = queryResult.query(fourOrFiveOrABC, null);
assertEquals("2.0", 2, queryResultSize(queryResult));
assertContains("2.1", queryResult, "4");
assertContains("2.2", queryResult, "5");
}
public void testSameCollector() {
String[] s = new String[] {"A", "B", "C", "D", "E", "F", "G", "1", "2", "3", "4", "5", "6", "7"};
List list = Arrays.asList(s);
IQuery numeric = new MatchQuery() {
@Override
public boolean isMatch(Object candidate) {
if (((String) candidate).compareTo("0") > 0 && ((String) candidate).compareTo("8") < 0) {
return true;
}
return false;
}
};
IQuery fourOrFiveOrABC = new MatchQuery() {
@Override
public boolean isMatch(Object candidate) {
if (((String) candidate).equals("4") || ((String) candidate).equals("5") || ((String) candidate).equals("A") || ((String) candidate).equals("B") || ((String) candidate).equals("C")) {
return true;
}
return false;
}
};
Collector collector = new Collector();
collector.addAll(numeric.perform(list.iterator()));
assertEquals("1.0", 7, collector.toUnmodifiableSet().size());
collector.addAll(collector.query(fourOrFiveOrABC, null));
Collection collection = collector.toUnmodifiableSet();
assertEquals("2.0", 7, collection.size());
}
/**
* This tests the query method on the collector.
*/
public void testEmptyCompositeCollectors() {
String[] s = new String[] {"A", "B", "C", "D", "E", "F", "G", "1", "2", "3", "4", "5", "6", "7"};
List list = Arrays.asList(s);
IQuery eightOrNine = new MatchQuery() {
@Override
public boolean isMatch(Object candidate) {
if (((String) candidate).compareTo("8") > 0 && ((String) candidate).compareTo("9") < 0) {
return true;
}
return false;
}
};
IQuery fourOrFiveOrABC = new MatchQuery() {
@Override
public boolean isMatch(Object candidate) {
if (((String) candidate).equals("4") || ((String) candidate).equals("5") || ((String) candidate).equals("A") || ((String) candidate).equals("B") || ((String) candidate).equals("C")) {
return true;
}
return false;
}
};
IQueryResult queryResult = eightOrNine.perform(list.iterator());
assertTrue("1.0", queryResult.isEmpty());
queryResult = queryResult.query(fourOrFiveOrABC, null);
assertTrue("2.0", queryResult.isEmpty());
}
public void testToCollection() {
Collector collector = new Collector();
Collection result = collector.toUnmodifiableSet();
assertEquals("1.0", 0, result.size());
//collection should be immutable
try {
result.add("value");
fail("1.1");
} catch (RuntimeException e) {
//expected
}
String value = "value";
collector.accept(value);
result = collector.toUnmodifiableSet();
assertEquals("2.0", 1, result.size());
assertEquals("2.1", value, result.iterator().next());
//collection should be immutable
try {
result.clear();
fail("2.2");
} catch (RuntimeException e) {
//expected
}
}
}
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