67 lines
2.5 KiB
Java
67 lines
2.5 KiB
Java
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/*
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* Copyright 2005 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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/*
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* @test
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* @bug 6301089
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* @summary test Collections.newSetFromMap
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* @author Martin Buchholz
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*/
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import java.util.*;
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public class SetFromMap {
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static volatile int passed = 0, failed = 0;
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static void pass() { passed++; }
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static void fail() { failed++; Thread.dumpStack(); }
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static void unexpected(Throwable t) { failed++; t.printStackTrace(); }
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static void check(boolean cond) { if (cond) pass(); else fail(); }
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static void equal(Object x, Object y) {
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if (x == null ? y == null : x.equals(y)) pass();
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else {System.out.println(x + " not equal to " + y); fail(); }}
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public static void main(String[] args) throws Throwable {
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try { realMain(); } catch (Throwable t) { unexpected(t); }
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System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
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if (failed > 0) throw new Exception("Some tests failed");
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}
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private static void realMain() throws Throwable {
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try {
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Map<String,Boolean> m = new IdentityHashMap<String,Boolean>();
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Set<String> s = Collections.newSetFromMap(m);
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String foo1 = new String("foo");
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String foo2 = new String("foo");
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String bar = new String("bar");
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check(s.add(foo1));
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check(s.add(foo2));
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check(s.add(bar));
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equal(s.size(), 3);
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check(s.contains(foo1));
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check(s.contains(foo2));
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check(! s.contains(new String(foo1)));
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} catch (Throwable t) { unexpected(t); }
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}
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}
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