| // 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.server.query; |
| |
| import static com.google.gerrit.server.query.Predicate.and; |
| import static com.google.gerrit.server.query.Predicate.not; |
| |
| import junit.framework.TestCase; |
| |
| import java.util.Collections; |
| import java.util.List; |
| |
| public class NotPredicateTest extends TestCase { |
| private static final class TestPredicate extends OperatorPredicate<String> { |
| private TestPredicate(String name, String value) { |
| super(name, value); |
| } |
| |
| @Override |
| public boolean match(String object) { |
| return false; |
| } |
| |
| @Override |
| public int getCost() { |
| return 0; |
| } |
| } |
| |
| private static TestPredicate f(final String name, final String value) { |
| return new TestPredicate(name, value); |
| } |
| |
| public void testNotNot() { |
| final TestPredicate p = f("author", "bob"); |
| final Predicate<String> n = not(p); |
| assertTrue(n instanceof NotPredicate); |
| assertNotSame(p, n); |
| assertSame(p, not(n)); |
| } |
| |
| public void testChildren() { |
| final TestPredicate p = f("author", "bob"); |
| final Predicate<String> n = not(p); |
| assertEquals(1, n.getChildCount()); |
| assertSame(p, n.getChild(0)); |
| } |
| |
| public void testChildrenUnmodifiable() { |
| final TestPredicate p = f("author", "bob"); |
| final Predicate<String> n = not(p); |
| |
| try { |
| n.getChildren().clear(); |
| } catch (RuntimeException e) { |
| } |
| assertOnlyChild("clear", p, n); |
| |
| try { |
| n.getChildren().remove(0); |
| } catch (RuntimeException e) { |
| } |
| assertOnlyChild("remove(0)", p, n); |
| |
| try { |
| n.getChildren().iterator().remove(); |
| } catch (RuntimeException e) { |
| } |
| assertOnlyChild("remove(0)", p, n); |
| } |
| |
| private static void assertOnlyChild(String o, Predicate<String> c, |
| Predicate<String> p) { |
| assertEquals(o + " did not affect child", 1, p.getChildCount()); |
| assertSame(o + " did not affect child", c, p.getChild(0)); |
| } |
| |
| public void testToString() { |
| assertEquals("-author:bob", not(f("author", "bob")).toString()); |
| } |
| |
| public void testEquals() { |
| assertTrue(not(f("author", "bob")).equals(not(f("author", "bob")))); |
| assertFalse(not(f("author", "bob")).equals(not(f("author", "alice")))); |
| assertFalse(not(f("author", "bob")).equals(f("author", "bob"))); |
| assertFalse(not(f("author", "bob")).equals("author")); |
| } |
| |
| public void testHashCode() { |
| assertTrue(not(f("a", "b")).hashCode() == not(f("a", "b")).hashCode()); |
| assertFalse(not(f("a", "b")).hashCode() == not(f("a", "a")).hashCode()); |
| } |
| |
| @SuppressWarnings({"rawtypes", "unchecked"}) |
| public void testCopy() { |
| final TestPredicate a = f("author", "alice"); |
| final TestPredicate b = f("author", "bob"); |
| final List<TestPredicate> sa = Collections.singletonList(a); |
| final List<TestPredicate> sb = Collections.singletonList(b); |
| final Predicate n = not(a); |
| |
| assertNotSame(n, n.copy(sa)); |
| assertEquals(sa, n.copy(sa).getChildren()); |
| |
| assertNotSame(n, n.copy(sb)); |
| assertEquals(sb, n.copy(sb).getChildren()); |
| |
| try { |
| n.copy(Collections.<Predicate> emptyList()); |
| } catch (IllegalArgumentException e) { |
| assertEquals("Expected exactly one child", e.getMessage()); |
| } |
| |
| try { |
| n.copy(and(a, b).getChildren()); |
| } catch (IllegalArgumentException e) { |
| assertEquals("Expected exactly one child", e.getMessage()); |
| } |
| } |
| } |