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/*
* Copyright (c) 2018, 2022, 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 8177552 8222756
* @summary Checks the equals and hashCode method of CompactNumberFormat
* @modules jdk.localedata
* @run testng/othervm TestEquality
*
*/
import java.text.CompactNumberFormat;
import java.text.DecimalFormatSymbols;
import java.text.NumberFormat;
import java.util.Locale;
import org.testng.annotations.Test;
public class TestEquality {
@Test
public void testEquality() {
CompactNumberFormat cnf1 = (CompactNumberFormat) NumberFormat
.getCompactNumberInstance(Locale.US, NumberFormat.Style.SHORT);
CompactNumberFormat cnf2 = (CompactNumberFormat) NumberFormat
.getCompactNumberInstance(Locale.US, NumberFormat.Style.SHORT);
// A custom compact instance with the same state as
// compact number instance of "en_US" locale with SHORT style
String decimalPattern = "#,##0.###";
String[] compactPatterns = new String[]{
"",
"",
"",
"{one:0K other:0K}",
"{one:00K other:00K}",
"{one:000K other:000K}",
"{one:0M other:0M}",
"{one:00M other:00M}",
"{one:000M other:000M}",
"{one:0B other:0B}",
"{one:00B other:00B}",
"{one:000B other:000B}",
"{one:0T other:0T}",
"{one:00T other:00T}",
"{one:000T other:000T}"
};
DecimalFormatSymbols symbols = DecimalFormatSymbols.getInstance(Locale.US);
CompactNumberFormat cnf3 =
new CompactNumberFormat(decimalPattern, symbols, compactPatterns, "one:i = 1 and v = 0");
// A compact instance created with different decimalPattern than cnf3
CompactNumberFormat cnf4 = new CompactNumberFormat("#,#0.0#", symbols, compactPatterns);
// A compact instance created with different format symbols than cnf3
CompactNumberFormat cnf5 = new CompactNumberFormat(decimalPattern,
DecimalFormatSymbols.getInstance(Locale.JAPAN), compactPatterns);
// A compact instance created with different compact patterns than cnf3
CompactNumberFormat cnf6 = new CompactNumberFormat(decimalPattern,
symbols, new String[]{"", "", "", "0K", "00K", "000K"});
// Checking reflexivity
if (!cnf1.equals(cnf1)) {
throw new RuntimeException("[testEquality() reflexivity FAILED: The compared"
+ " objects must be equal]");
}
// Checking symmetry, checking equality of two same objects
if (!cnf1.equals(cnf2) || !cnf2.equals(cnf1)) {
throw new RuntimeException("[testEquality() symmetry FAILED: The compared"
+ " objects must be equal]");
}
// Checking transitivity, three objects must be equal
if (!cnf1.equals(cnf2) || !cnf2.equals(cnf3) || !cnf1.equals(cnf3)) {
throw new RuntimeException("[testEquality() transitivity FAILED: The compared"
+ " objects must be equal]");
}
// Objects must not be equal as the decimalPattern is different
checkEquals(cnf3, cnf4, false, "1st", "different decimal pattern");
// Objects must not be equal as the format symbols instance is different
checkEquals(cnf3, cnf5, false, "2nd", "different format symbols");
// Objects must not be equal as the compact patters are different
checkEquals(cnf3, cnf6, false, "3rd", "different compact patterns");
// Changing the min integer digits of first object; objects must not
// be equal
cnf1.setMinimumIntegerDigits(5);
checkEquals(cnf1, cnf2, false, "4th", "different min integer digits");
// Changing the min integer digits of second object; objects must
// be equal
cnf2.setMinimumIntegerDigits(5);
checkEquals(cnf1, cnf2, true, "5th", "");
// Changing the grouping size of first object; objects must not
// be equal
cnf1.setGroupingSize(4);
checkEquals(cnf1, cnf2, false, "6th", "different grouping size");
// Changing the grouping size if second object; objects must be equal
cnf2.setGroupingSize(4);
checkEquals(cnf1, cnf2, true, "7th", "");
// Changing the parseBigDecimal of first object; objects must not
// be equal
cnf1.setParseBigDecimal(true);
checkEquals(cnf1, cnf2, false, "8th", "different parse big decimal");
}
private void checkEquals(CompactNumberFormat cnf1, CompactNumberFormat cnf2,
boolean mustEqual, String nthComparison, String message) {
if (cnf1.equals(cnf2) != mustEqual) {
if (mustEqual) {
throw new RuntimeException("[testEquality() " + nthComparison
+ " comparison FAILED: The compared objects must be equal]");
} else {
throw new RuntimeException("[testEquality() " + nthComparison
+ " comparison FAILED: The compared objects must"
+ " not be equal because of " + message + "]");
}
}
}
@Test
public void testHashCode() {
NumberFormat cnf1 = NumberFormat
.getCompactNumberInstance(Locale.JAPAN, NumberFormat.Style.SHORT);
NumberFormat cnf2 = NumberFormat
.getCompactNumberInstance(Locale.JAPAN, NumberFormat.Style.SHORT);
if (cnf1.hashCode() != cnf2.hashCode()) {
throw new RuntimeException("[testHashCode() FAILED: hashCode of the"
+ " compared objects must match]");
}
}
// Test the property of equals and hashCode i.e. two equal object must
// always have the same hashCode
@Test
public void testEqualsAndHashCode() {
NumberFormat cnf1 = NumberFormat
.getCompactNumberInstance(Locale.of("hi", "IN"), NumberFormat.Style.SHORT);
cnf1.setMinimumIntegerDigits(5);
NumberFormat cnf2 = NumberFormat
.getCompactNumberInstance(Locale.of("hi", "IN"), NumberFormat.Style.SHORT);
cnf2.setMinimumIntegerDigits(5);
if (cnf1.equals(cnf2)) {
if (cnf1.hashCode() != cnf2.hashCode()) {
throw new RuntimeException("[testEqualsAndHashCode() FAILED: two"
+ " equal objects must have same hashCode]");
}
} else {
throw new RuntimeException("[testEqualsAndHashCode() FAILED: The"
+ " compared objects must be equal]");
}
}
}
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