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// Copyright (C) 2009 The Android Open Source Project
//
// Licensed 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 com.google.gerrit.index.query;
import static com.google.common.collect.ImmutableList.of;
import static com.google.gerrit.index.query.Predicate.or;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.util.List;
import org.junit.Test;
public class OrPredicateTest extends PredicateTest {
@Test
public void children() {
final TestPredicate a = f("author", "alice");
final TestPredicate b = f("author", "bob");
final Predicate<String> n = or(a, b);
assertEquals(2, n.getChildCount());
assertSame(a, n.getChild(0));
assertSame(b, n.getChild(1));
}
@Test
public void childrenUnmodifiable() {
final TestPredicate a = f("author", "alice");
final TestPredicate b = f("author", "bob");
final Predicate<String> n = or(a, b);
try {
n.getChildren().clear();
fail("Expected UnsupportedOperationException");
} catch (UnsupportedOperationException e) {
// Expected
}
assertChildren("clear", n, of(a, b));
try {
n.getChildren().remove(0);
fail("Expected UnsupportedOperationException");
} catch (UnsupportedOperationException e) {
// Expected
}
assertChildren("remove(0)", n, of(a, b));
try {
n.getChildren().iterator().remove();
fail("Expected UnsupportedOperationException");
} catch (UnsupportedOperationException e) {
// Expected
}
assertChildren("iterator().remove()", n, of(a, b));
}
private static void assertChildren(
String o, Predicate<String> p, List<? extends Predicate<String>> l) {
assertEquals(o + " did not affect child", l, p.getChildren());
}
@Test
public void testToString() {
final TestPredicate a = f("q", "alice");
final TestPredicate b = f("q", "bob");
final TestPredicate c = f("q", "charlie");
assertEquals("(q:alice OR q:bob)", or(a, b).toString());
assertEquals("(q:alice OR q:bob OR q:charlie)", or(a, b, c).toString());
}
@Test
public void testEquals() {
final TestPredicate a = f("author", "alice");
final TestPredicate b = f("author", "bob");
final TestPredicate c = f("author", "charlie");
assertTrue(or(a, b).equals(or(a, b)));
assertTrue(or(a, b, c).equals(or(a, b, c)));
assertFalse(or(a, b).equals(or(b, a)));
assertFalse(or(a, c).equals(or(a, b)));
assertFalse(or(a, c).equals(a));
}
@Test
public void testHashCode() {
final TestPredicate a = f("author", "alice");
final TestPredicate b = f("author", "bob");
final TestPredicate c = f("author", "charlie");
assertTrue(or(a, b).hashCode() == or(a, b).hashCode());
assertTrue(or(a, b, c).hashCode() == or(a, b, c).hashCode());
assertFalse(or(a, c).hashCode() == or(a, b).hashCode());
}
@Test
public void testCopy() {
final TestPredicate a = f("author", "alice");
final TestPredicate b = f("author", "bob");
final TestPredicate c = f("author", "charlie");
final List<TestPredicate> s2 = of(a, b);
final List<TestPredicate> s3 = of(a, b, c);
final Predicate<String> n2 = or(a, b);
assertNotSame(n2, n2.copy(s2));
assertEquals(s2, n2.copy(s2).getChildren());
assertEquals(s3, n2.copy(s3).getChildren());
}
}
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