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/*
* Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package test.java.util.Map;
import java.util.HashMap;
import java.util.Map;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertNotEquals;
import static org.testng.Assert.assertNotSame;
import static org.testng.Assert.assertSame;
/*
* @test
* @bug 8048330
* @summary Test convenience static factory methods on Map.
* @run testng MapFactories
*/
public class MapFactories {
Map<Integer, String> genMap() {
Map<Integer, String> map = new HashMap<>();
map.put(1, "a");
map.put(2, "b");
map.put(3, "c");
return map;
}
@Test
public void copyOfResultsEqual() {
Map<Integer, String> orig = genMap();
Map<Integer, String> copy = Map.copyOf(orig);
assertEquals(orig, copy);
assertEquals(copy, orig);
}
@Test
public void copyOfModifiedUnequal() {
Map<Integer, String> orig = genMap();
Map<Integer, String> copy = Map.copyOf(orig);
orig.put(4, "d");
assertNotEquals(orig, copy);
assertNotEquals(copy, orig);
}
@Test
public void copyOfIdentity() {
Map<Integer, String> orig = genMap();
Map<Integer, String> copy1 = Map.copyOf(orig);
Map<Integer, String> copy2 = Map.copyOf(copy1);
assertNotSame(orig, copy1);
assertSame(copy1, copy2);
}
@Test(expectedExceptions=NullPointerException.class)
public void copyOfRejectsNullMap() {
Map<Integer, String> map = Map.copyOf(null);
}
@Test(expectedExceptions=NullPointerException.class)
public void copyOfRejectsNullKey() {
Map<Integer, String> map = genMap();
map.put(null, "x");
Map<Integer, String> copy = Map.copyOf(map);
}
@Test(expectedExceptions=NullPointerException.class)
public void copyOfRejectsNullValue() {
Map<Integer, String> map = genMap();
map.put(-1, null);
Map<Integer, String> copy = Map.copyOf(map);
}
}
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