1 /*
2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 /*
24 * @test
25 * @bug 8177552
26 * @summary Checks the equals and hashCode method of CompactNumberFormat
27 * @modules jdk.localedata
28 * @run testng/othervm TestEquality
29 *
30 */
31
32 import java.text.CompactNumberFormat;
33 import java.text.DecimalFormatSymbols;
34 import java.text.NumberFormat;
35 import java.util.Locale;
36 import org.testng.annotations.Test;
37
38 public class TestEquality {
39
40 @Test
41 public void testEquality() {
42 CompactNumberFormat cnf1 = (CompactNumberFormat) NumberFormat
43 .getCompactNumberInstance(Locale.US, NumberFormat.Style.SHORT);
44
45 CompactNumberFormat cnf2 = (CompactNumberFormat) NumberFormat
46 .getCompactNumberInstance(Locale.US, NumberFormat.Style.SHORT);
47
48 // A custom compact instance with the same state as
49 // compact number instance of "en_US" locale with SHORT style
50 String decimalPattern = "#,##0.###";
51 String[] compactPatterns = new String[]{"", "", "", "0K", "00K", "000K", "0M", "00M", "000M", "0B", "00B", "000B", "0T", "00T", "000T"};
52 DecimalFormatSymbols symbols = DecimalFormatSymbols.getInstance(Locale.US);
53 CompactNumberFormat cnf3 = new CompactNumberFormat(decimalPattern, symbols, compactPatterns);
54
55 // A compact instance created with different decimalPattern than cnf3
56 CompactNumberFormat cnf4 = new CompactNumberFormat("#,#0.0#", symbols, compactPatterns);
57
58 // A compact instance created with different format symbols than cnf3
59 CompactNumberFormat cnf5 = new CompactNumberFormat(decimalPattern,
60 DecimalFormatSymbols.getInstance(Locale.JAPAN), compactPatterns);
61
62 // A compact instance created with different compact patterns than cnf3
63 CompactNumberFormat cnf6 = new CompactNumberFormat(decimalPattern,
64 symbols, new String[]{"", "", "", "0K", "00K", "000K"});
65
66 // Checking reflexivity
67 if (!cnf1.equals(cnf1)) {
68 throw new RuntimeException("[testEquality() reflexivity FAILED: The compared"
69 + " objects must be equal]");
70 }
71
72 // Checking symmetry, checking equality of two same objects
73 if (!cnf1.equals(cnf2) || !cnf2.equals(cnf1)) {
74 throw new RuntimeException("[testEquality() symmetry FAILED: The compared"
75 + " objects must be equal]");
76 }
77
78 // Checking transitivity, three objects must be equal
79 if (!cnf1.equals(cnf2) || !cnf2.equals(cnf3) || !cnf1.equals(cnf3)) {
80 throw new RuntimeException("[testEquality() transitivity FAILED: The compared"
81 + " objects must be equal]");
82 }
83
84 // Objects must not be equal as the decimalPattern is different
85 checkEquals(cnf3, cnf4, false, "1st", "different decimal pattern");
86
87 // Objects must not be equal as the format symbols instance is different
88 checkEquals(cnf3, cnf5, false, "2nd", "different format symbols");
89
90 // Objects must not be equal as the compact patters are different
91 checkEquals(cnf3, cnf6, false, "3rd", "different compact patterns");
92
93 // Changing the min integer digits of first object; objects must not
94 // be equal
95 cnf1.setMinimumIntegerDigits(5);
96 checkEquals(cnf1, cnf2, false, "4th", "different min integer digits");
97
98 // Changing the min integer digits of second object; objects must
99 // be equal
100 cnf2.setMinimumIntegerDigits(5);
101 checkEquals(cnf1, cnf2, true, "5th", "");
102
103 // Changing the grouping size of first object; objects must not
104 // be equal
105 cnf1.setGroupingSize(4);
106 checkEquals(cnf1, cnf2, false, "6th", "different grouping size");
107
108 // Changing the grouping size if second object; objects must be equal
109 cnf2.setGroupingSize(4);
110 checkEquals(cnf1, cnf2, true, "7th", "");
111
112 // Changing the parseBigDecimal of first object; objects must not
113 // be equal
114 cnf1.setParseBigDecimal(true);
115 checkEquals(cnf1, cnf2, false, "8th", "different parse big decimal");
116
117 }
118
119 private void checkEquals(CompactNumberFormat cnf1, CompactNumberFormat cnf2,
120 boolean mustEqual, String nthComparison, String message) {
121 if (cnf1.equals(cnf2) != mustEqual) {
122 if (mustEqual) {
123 throw new RuntimeException("[testEquality() " + nthComparison
124 + " comparison FAILED: The compared objects must be equal]");
125 } else {
126 throw new RuntimeException("[testEquality() " + nthComparison
127 + " comparison FAILED: The compared objects must"
128 + " not be equal because of " + message + "]");
129 }
130 }
131 }
132
133 @Test
134 public void testHashCode() {
135 NumberFormat cnf1 = NumberFormat
136 .getCompactNumberInstance(Locale.JAPAN, NumberFormat.Style.SHORT);
137 NumberFormat cnf2 = NumberFormat
138 .getCompactNumberInstance(Locale.JAPAN, NumberFormat.Style.SHORT);
139
140 if (cnf1.hashCode() != cnf2.hashCode()) {
141 throw new RuntimeException("[testHashCode() FAILED: hashCode of the"
142 + " compared objects must match]");
143 }
144 }
145
146 // Test the property of equals and hashCode i.e. two equal object must
147 // always have the same hashCode
148 @Test
149 public void testEqualsAndHashCode() {
150 NumberFormat cnf1 = NumberFormat
151 .getCompactNumberInstance(new Locale("hi", "IN"), NumberFormat.Style.SHORT);
152 cnf1.setMinimumIntegerDigits(5);
153 NumberFormat cnf2 = NumberFormat
154 .getCompactNumberInstance(new Locale("hi", "IN"), NumberFormat.Style.SHORT);
155 cnf2.setMinimumIntegerDigits(5);
156 if (cnf1.equals(cnf2)) {
157 if (cnf1.hashCode() != cnf2.hashCode()) {
158 throw new RuntimeException("[testEqualsAndHashCode() FAILED: two"
159 + " equal objects must have same hashCode]");
160 }
161 } else {
162 throw new RuntimeException("[testEqualsAndHashCode() FAILED: The"
163 + " compared objects must be equal]");
164 }
165 }
166
167 }