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/*
* Copyright (c) 2013, 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.
*/
/*
* @test
* @bug 8008785
* @summary Ensure toArray() implementations return correct results.
* @author Mike Duigou
*/
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentSkipListMap;
public class ToArray {
/**
* Number of elements per map.
*/
private static final int TEST_SIZE = 5000;
private static void realMain(String[] args) throws Throwable {
Map<Integer, Long>[] maps = (Map<Integer, Long>[]) new Map[]{
new HashMap<>(),
new Hashtable<>(),
new IdentityHashMap<>(),
new LinkedHashMap<>(),
new TreeMap<>(),
new WeakHashMap<>(),
new ConcurrentHashMap<>(),
new ConcurrentSkipListMap<>()
};
// for each map type.
for (Map<Integer, Long> map : maps) {
try {
testMap(map);
} catch(Exception all) {
unexpected("Failed for " + map.getClass().getName(), all);
}
}
}
private static final Integer[] KEYS = new Integer[TEST_SIZE];
private static final Long[] VALUES = new Long[TEST_SIZE];
static {
for (int each = 0; each < TEST_SIZE; each++) {
KEYS[each] = Integer.valueOf(each);
VALUES[each] = Long.valueOf(each + TEST_SIZE);
}
}
private static void testMap(Map<Integer, Long> map) {
System.out.println("Testing " + map.getClass());
System.out.flush();
// Fill the map
for (int each = 0; each < TEST_SIZE; each++) {
map.put(KEYS[each], VALUES[each]);
}
// check the keys
Object[] keys = map.keySet().toArray();
Arrays.sort(keys);
for(int each = 0; each < TEST_SIZE; each++) {
check( "unexpected key", keys[each] == KEYS[each]);
}
// check the values
Object[] values = map.values().toArray();
Arrays.sort(values);
for(int each = 0; each < TEST_SIZE; each++) {
check( "unexpected value", values[each] == VALUES[each]);
}
// check the entries
Map.Entry<Integer,Long>[] entries = map.entrySet().toArray(new Map.Entry[TEST_SIZE]);
Arrays.sort( entries,new Comparator<Map.Entry<Integer,Long>>() {
public int compare(Map.Entry<Integer,Long> o1, Map.Entry<Integer,Long> o2) {
return o1.getKey().compareTo(o2.getKey());
}});
for(int each = 0; each < TEST_SIZE; each++) {
check( "unexpected entry", entries[each].getKey() == KEYS[each] && entries[each].getValue() == VALUES[each]);
}
}
//--------------------- Infrastructure ---------------------------
static volatile int passed = 0, failed = 0;
static void pass() {
passed++;
}
static void fail() {
failed++;
(new Error("Failure")).printStackTrace(System.err);
}
static void fail(String msg) {
failed++;
(new Error("Failure: " + msg)).printStackTrace(System.err);
}
static void abort() {
fail();
System.exit(1);
}
static void abort(String msg) {
fail(msg);
System.exit(1);
}
static void unexpected(String msg, Throwable t) {
System.err.println("Unexpected: " + msg);
unexpected(t);
}
static void unexpected(Throwable t) {
failed++;
t.printStackTrace(System.err);
}
static void check(boolean cond) {
if (cond) {
pass();
} else {
fail();
}
}
static void check(String desc, boolean cond) {
if (cond) {
pass();
} else {
fail(desc);
}
}
static void equal(Object x, Object y) {
if (Objects.equals(x, y)) {
pass();
} else {
fail(x + " not equal to " + y);
}
}
public static void main(String[] args) throws Throwable {
Thread.currentThread().setName(ToArray.class.getName());
// Thread.currentThread().setPriority(Thread.MAX_PRIORITY);
try {
realMain(args);
} catch (Throwable t) {
unexpected(t);
}
System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
if (failed > 0) {
throw new Error("Some tests failed");
}
}
}
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