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/*
* Copyright (c) 2005, 2016, 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 4092330 6246348
* @summary Tests for rounding mode in NumberFormat
*/
import java.math.*;
import java.text.*;
public class NumberFormatRounding {
static final String AE = "ArithmeticException";
static final double src[] = {5.5, 2.5, 1.6, 1.1, 1.0, -1.0, -1.1, -1.6, -2.5, -5.5,
5.501, -5.501, 5.500, -5.500, 1.001, -1.001, 4.501, -4.501, 4.500, -4.500};
static final String up[] = {"6", "3", "2", "2", "1", "-1", "-2", "-2", "-3", "-6",
"6", "-6", "6", "-6", "2", "-2", "5", "-5", "5", "-5"};
static final String down[] = {"5", "2", "1", "1", "1", "-1", "-1", "-1", "-2", "-5",
"5", "-5", "5", "-5", "1", "-1", "4", "-4", "4", "-4"};
static final String ceiling[] = {"6", "3", "2", "2", "1", "-1", "-1", "-1", "-2", "-5",
"6", "-5", "6", "-5", "2", "-1", "5", "-4", "5", "-4"};
static final String floor[] = {"5", "2", "1", "1", "1", "-1", "-2", "-2", "-3", "-6",
"5", "-6", "5", "-6", "1", "-2", "4", "-5", "4", "-5"};
static final String half_up[] = {"6", "3", "2", "1", "1", "-1", "-1", "-2", "-3", "-6",
"6", "-6", "6", "-6", "1", "-1", "5", "-5", "5", "-5"};
static final String half_down[] = {"5", "2", "2", "1", "1", "-1", "-1", "-2", "-2", "-5",
"6", "-6", "5", "-5", "1", "-1", "5", "-5", "4", "-4"};
static final String half_even[] = {"6", "2", "2", "1", "1", "-1", "-1", "-2", "-2", "-6",
"6", "-6", "6", "-6", "1", "-1", "5", "-5", "4", "-4"};
static final String unnecessary[] = {AE, AE, AE, AE, "1", "-1", AE, AE, AE, AE,
AE, AE, AE, AE, AE, AE, AE, AE, AE, AE};
public static void main(String[] args) {
basicTest();
roundTest(RoundingMode.UP, up);
roundTest(RoundingMode.DOWN, down);
roundTest(RoundingMode.CEILING, ceiling);
roundTest(RoundingMode.FLOOR, floor);
roundTest(RoundingMode.HALF_UP, half_up);
roundTest(RoundingMode.HALF_DOWN, half_down);
roundTest(RoundingMode.HALF_EVEN, half_even);
roundTest(RoundingMode.UNNECESSARY, unnecessary);
}
static void basicTest() {
NumberFormat nf = NumberFormat.getIntegerInstance();
if (nf.getRoundingMode() != RoundingMode.HALF_EVEN) {
throw new RuntimeException("default rounding is not HALF_EVEN");
}
try {
nf.setRoundingMode(null);
throw new RuntimeException(
"NullPointerException is not thrown by calling setRoundingMode(null)");
} catch (NullPointerException npe) {
// continue testing
}
ChoiceFormat cf = new ChoiceFormat("");
try {
cf.setRoundingMode(RoundingMode.HALF_EVEN);
throw new RuntimeException(
"UnsupportedOperationException is not thrown by calling setRoundingMode()");
} catch (UnsupportedOperationException uoe) {
// continue testing
}
try {
cf.getRoundingMode();
throw new RuntimeException(
"UnsupportedOperationException is not thrown by calling getRoundingMode()");
} catch (UnsupportedOperationException uoe) {
// continue testing
}
}
static void roundTest(RoundingMode rm, String[] expected) {
NumberFormat nf = NumberFormat.getIntegerInstance();
nf.setRoundingMode(rm);
if (nf.getRoundingMode() != rm) {
throw new RuntimeException("set rounding mode is not returned by get method");
}
for (int i = 0; i < src.length; i ++) {
String result = null;
try {
result = nf.parse(nf.format(src[i])).toString();
if (!result.equals(expected[i])) {
throw new RuntimeException("rounding test #"+i+" failed. mode: "+rm+" src: "+src[i]+" expected: "+expected[i]+" result: "+result);
}
} catch (ArithmeticException ae) {
if (expected[i].equals(AE)) {
continue;
} else {
result = AE;
throw new RuntimeException("rounding test #"+i+" failed. mode: "+rm+" src: "+src[i]+" expected: "+expected[i]+" result: "+result);
}
} catch (ParseException pe) {
throw new RuntimeException("ParseException ocurred.", pe);
}
}
}
}
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