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/*
* Copyright 2009 Google, Inc. 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 6582946
* @summary Test the primitive wrappers compare and compareTo methods
*/
import java.util.Random;
public class Compare {
final Random rnd = new Random();
boolean toBoolean(long x) { return x > 0; }
void compareAll(long x, long y) {
check(Double.compare(x, y) ==
Double.valueOf(x).compareTo(Double.valueOf(y)));
check(Float.compare(x, y) ==
Float.valueOf(x).compareTo(Float.valueOf(y)));
check(Long.compare(x, y) ==
Long.valueOf(x).compareTo(Long.valueOf(y)));
check(Integer.compare((int) x, (int) y) ==
Integer.valueOf((int) x).compareTo(Integer.valueOf((int) y)));
check(Short.compare((short) x, (short) y) ==
Short.valueOf((short) x).compareTo(Short.valueOf((short) y)));
check(Character.compare((char) x, (char) y) ==
Character.valueOf((char) x).compareTo(Character.valueOf((char) y)));
check(Byte.compare((byte) x, (byte) y) ==
Byte.valueOf((byte) x).compareTo(Byte.valueOf((byte) y)));
check(Boolean.compare(toBoolean(x), toBoolean(y)) ==
Boolean.valueOf(toBoolean(x)).compareTo(Boolean.valueOf(toBoolean(y))));
check(Double.compare(x, y) == -Double.compare(y, x));
check(Float.compare(x, y) == -Float.compare(y, x));
check(Long.compare(x, y) == -Long.compare(y, x));
check(Integer.compare((int) x, (int) y) ==
-Integer.compare((int) y, (int) x));
check(Short.compare((short) x, (short) y) ==
-Short.compare((short) y, (short) x));
check(Character.compare((char) x, (char) y) ==
-Character.compare((char) y, (char) x));
check(Byte.compare((byte) x, (byte) y) ==
-Byte.compare((byte) y, (byte) x));
equal(Long.compare(x, y),
x < y ? -1 : x > y ? 1 : 0);
{
int a = (int) x, b = (int) y;
equal(Integer.compare(a, b),
a < b ? -1 : a > b ? 1 : 0);
}
{
short a = (short) x, b = (short) y;
equal(Short.compare(a, b),
a - b);
}
{
char a = (char) x, b = (char) y;
equal(Character.compare(a, b),
a - b);
}
{
byte a = (byte) x, b = (byte) y;
equal(Byte.compare(a, b),
a - b);
}
{
boolean a = toBoolean(x), b = toBoolean(y);
equal(Boolean.compare(a, b),
a == b ? 0 : a ? 1 : -1);
}
}
void test(String args[]) throws Exception {
long[] longs = {
Long.MIN_VALUE,
Integer.MIN_VALUE,
Short.MIN_VALUE,
Character.MIN_VALUE,
Byte.MIN_VALUE,
-1, 0, 1,
Byte.MAX_VALUE,
Character.MAX_VALUE,
Short.MAX_VALUE,
Integer.MAX_VALUE,
Long.MAX_VALUE,
rnd.nextLong(),
rnd.nextInt(),
};
for (long x : longs) {
for (long y : longs) {
compareAll(x, y);
}
}
}
//--------------------- Infrastructure ---------------------------
volatile int passed = 0, failed = 0;
void pass() {passed++;}
void fail() {failed++; Thread.dumpStack();}
void fail(String msg) {System.err.println(msg); fail();}
void unexpected(Throwable t) {failed++; t.printStackTrace();}
void check(boolean cond) {if (cond) pass(); else fail();}
void equal(Object x, Object y) {
if (x == null ? y == null : x.equals(y)) pass();
else fail(x + " not equal to " + y);}
public static void main(String[] args) throws Throwable {
new Compare().instanceMain(args);}
public void instanceMain(String[] args) throws Throwable {
try {test(args);} catch (Throwable t) {unexpected(t);}
System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
if (failed > 0) throw new AssertionError("Some tests failed");}
}
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