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  * @modules jdk.localedata
  27  * @summary Checks the serialization feature of CompactNumberFormat
  28  * @run testng/othervm TestSerialization
  29  */
  30 
  31 import org.testng.annotations.BeforeTest;
  32 import org.testng.annotations.Test;
  33 
  34 import java.io.FileInputStream;
  35 import java.io.FileOutputStream;
  36 import java.io.IOException;
  37 import java.io.ObjectInputStream;
  38 import java.io.ObjectOutputStream;
  39 import java.math.RoundingMode;
  40 import java.text.CompactNumberFormat;
  41 import java.text.NumberFormat;
  42 import java.util.Locale;
  43 import static org.testng.Assert.*;
  44 
  45 public class TestSerialization {
  46 
  47     private static final NumberFormat FORMAT_HI = NumberFormat.getCompactNumberInstance(
  48             new Locale("hi"), NumberFormat.Style.SHORT);
  49     private static final CompactNumberFormat FORMAT_EN_US = (CompactNumberFormat) NumberFormat
  50             .getCompactNumberInstance(Locale.US, NumberFormat.Style.LONG);
  51     private static final NumberFormat FORMAT_JA_JP = NumberFormat.getCompactNumberInstance(
  52             Locale.JAPAN, NumberFormat.Style.SHORT);
  53     private static final NumberFormat FORMAT_FR_FR = NumberFormat.getCompactNumberInstance(
  54             Locale.FRANCE, NumberFormat.Style.LONG);
  55     private static final NumberFormat FORMAT_DE_DE = NumberFormat.getCompactNumberInstance(
  56             Locale.GERMANY, NumberFormat.Style.SHORT);
  57     private static final NumberFormat FORMAT_KO_KR = NumberFormat.getCompactNumberInstance(
  58             Locale.KOREA, NumberFormat.Style.SHORT);
  59 
  60     @BeforeTest
  61     public void mutateInstances() {
  62         FORMAT_HI.setMinimumFractionDigits(2);
  63         FORMAT_HI.setMinimumIntegerDigits(5);
  64 
  65         FORMAT_EN_US.setRoundingMode(RoundingMode.HALF_UP);
  66         FORMAT_EN_US.setGroupingSize(3);
  67         FORMAT_EN_US.setParseBigDecimal(true);
  68 
  69         FORMAT_JA_JP.setMaximumFractionDigits(30);
  70         FORMAT_JA_JP.setMaximumIntegerDigits(30);
  71 
  72         FORMAT_FR_FR.setParseIntegerOnly(true);
  73         FORMAT_FR_FR.setGroupingUsed(true);
  74 
  75         // Setting minimum integer digits beyond the allowed range
  76         FORMAT_DE_DE.setMinimumIntegerDigits(320);
  77 
  78         // Setting minimum fraction digits beyond the allowed range
  79         FORMAT_KO_KR.setMinimumFractionDigits(350);
  80     }
  81 
  82     @Test
  83     public void testSerialization() throws IOException, ClassNotFoundException {
  84         // Serialize
  85         serialize("cdf.ser", FORMAT_HI, FORMAT_EN_US, FORMAT_JA_JP, FORMAT_FR_FR, FORMAT_DE_DE, FORMAT_KO_KR);
  86         // Deserialize
  87         deserialize("cdf.ser", FORMAT_HI, FORMAT_EN_US, FORMAT_JA_JP, FORMAT_FR_FR, FORMAT_DE_DE, FORMAT_KO_KR);
  88     }
  89 
  90     private void serialize(String fileName, NumberFormat... formats)
  91             throws IOException {
  92         try (ObjectOutputStream os = new ObjectOutputStream(
  93                 new FileOutputStream(fileName))) {
  94             for (NumberFormat fmt : formats) {
  95                 os.writeObject(fmt);
  96             }
  97         }
  98     }
  99 
 100     private static void deserialize(String fileName, NumberFormat... formats)
 101             throws IOException, ClassNotFoundException {
 102         try (ObjectInputStream os = new ObjectInputStream(
 103                 new FileInputStream(fileName))) {
 104             for (NumberFormat fmt : formats) {
 105                 NumberFormat obj = (NumberFormat) os.readObject();
 106                 assertEquals(fmt, obj, "Serialized and deserialized"
 107                         + " objects do not match");
 108 
 109                 long number = 123456789789L;
 110                 String expected = fmt.format(number);
 111                 String actual = obj.format(number);
 112                 assertEquals(actual, expected, "Serialized and deserialized"
 113                         + " objects are expected to return same formatted"
 114                         + " output for number: " + number);
 115             }
 116         }
 117     }
 118 }