/*
* (C) Copyright 2017 Pantheon Technologies, s.r.o. and others.
*
* 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 org.opendaylight.yangtools.triemap;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.util.Map;
import org.junit.Before;
import org.junit.Test;
public class SnapshotTest {
private TrieMap<String, String> map;
@Before
public void setUp() {
map = TrieMap.create();
map.put("k1", "v1");
map.put("k2", "v2");
}
private static void assertMutableIsolation(final Map<String, String> m1, final Map<String, String> m2) {
assertTrue(m2.containsKey("k1"));
assertTrue(m2.containsKey("k2"));
m1.remove("k1");
assertFalse(m1.containsKey("k1"));
assertTrue(m2.containsKey("k1"));
m2.remove("k2");
assertFalse(m1.containsKey("k1"));
assertTrue(m2.containsKey("k1"));
assertEquals(1, m1.size());
assertEquals(1, m2.size());
}
@Test
public void testMutableSnapshotIsolation() {
assertMutableIsolation(map, map.mutableSnapshot());
}
@Test
public void testMutableSnapshotIsolationAcrossImmutable() {
final TrieMap<String, String> snap = map.immutableSnapshot();
assertTrue(snap.containsKey("k1"));
assertTrue(snap.containsKey("k2"));
assertMutableIsolation(map, snap.mutableSnapshot());
assertTrue(snap.containsKey("k1"));
assertTrue(snap.containsKey("k2"));
}
}