1 package org.apache.maven.shared.utils;
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22 import java.util.Locale;
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24 import org.apache.commons.lang3.StringEscapeUtils;
25 import org.junit.AfterClass;
26 import org.junit.Assert;
27 import org.junit.ComparisonFailure;
28 import org.junit.Test;
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39 public class CaseTest
40 extends Assert
41 {
42 private final static Locale LOCALE_TURKISH = new Locale( "tr" );
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45 private final static char DOTTED_i = '\u0069';
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48 private final static char DOTLESS_I = '\u0049';
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50
51 private final static char DOTLESS_i = '\u0131';
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54 private final static char DOTTED_I = '\u0130';
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71 @Test
72 public void testTurkishI()
73 {
74
75 assertEquals( "common lowercase i should have a dot", 'i', DOTTED_i );
76 assertEquals( "common uppercase I should not have a dot", 'I', DOTLESS_I );
77
78 final String iIıİ = "iIıİ";
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80
81 assertUnicodeEquals( "misc i directly in (UTF-8) source", iIıİ, "" + DOTTED_i + DOTLESS_I + DOTLESS_i
82 + DOTTED_I );
83
84
85 assertUnicodeEquals( "'iIıİ'.toUpperCase('tr')=='İIIİ'", "" + DOTTED_I + DOTLESS_I + DOTLESS_I + DOTTED_I,
86 iIıİ.toUpperCase( LOCALE_TURKISH ) );
87 assertUnicodeEquals( "'iIıİ'.toLowerCase('tr')=='iııi'", "" + DOTTED_i + DOTLESS_i + DOTLESS_i + DOTTED_i,
88 iIıİ.toLowerCase( LOCALE_TURKISH ) );
89 assertUnicodeEquals( "'iIıİ'.toUpperCase('en')=='IIIİ'", "" + DOTLESS_I + DOTLESS_I + DOTLESS_I + DOTTED_I,
90 iIıİ.toUpperCase( Locale.ENGLISH ) );
91 String lower = iIıİ.toLowerCase( Locale.ENGLISH );
92 assertUnicodeEquals( "'iIıİ'.toLowerCase('en')=='iiıi'", "" + DOTTED_i + DOTTED_i + DOTLESS_i + DOTTED_i
93 + ( lower.length() > 4 ? COMBINING_DOT_ABOVE : "" ), lower );
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96 for ( int i = 0; i < iIıİ.length(); i++ )
97 {
98 char currentI = iIıİ.charAt( i );
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100 StringBuilder sb = new StringBuilder( iIıİ.length() );
101 for ( int j = 0; j < iIıİ.length(); j++ )
102 {
103 sb.append( currentI );
104 }
105 String current = sb.toString();
106
107 assertTrue( "'" + current + "'.equalsIgnoreCase('" + iIıİ + "')", current.equalsIgnoreCase( iIıİ ) );
108 }
109 }
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117 private void assertUnicodeEquals( String message, String expected, String actual )
118 {
119 if ( expected.equals( actual ) )
120 {
121 return;
122 }
123
124 throw new ComparisonFailure( message, StringEscapeUtils.escapeJava( expected ),
125 StringEscapeUtils.escapeJava( actual ) );
126 }
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132 @Test
133 public void testAsciiAvailableLocales()
134 {
135 final String lower = "abcdefghijklmnopqrstuvwxyz";
136 final String upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
137
138 for ( Locale locale : Locale.getAvailableLocales() )
139 {
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141 Locale.setDefault( locale );
142 assertEquals( lower.toUpperCase(), lower.toUpperCase( locale ) );
143 assertEquals( upper.toLowerCase(), upper.toLowerCase( locale ) );
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146 String expectedToUpperCase = upper;
147 String expectedToLowerCase = lower;
148 if ( LOCALE_TURKISH.getLanguage().equals( locale.getLanguage() ) )
149 {
150 expectedToUpperCase = upper.replace( DOTLESS_I, DOTTED_I );
151 expectedToLowerCase = lower.replace( DOTTED_i, DOTLESS_i );
152 }
153
154 assertEquals( "'" + lower + "'.toUpperCase('" + locale.toString() + "')", expectedToUpperCase,
155 lower.toUpperCase( locale ) );
156 assertEquals( "'" + upper + "'.toLowerCase('" + locale.toString() + "')", expectedToLowerCase,
157 upper.toLowerCase( locale ) );
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160 assertEquals( "'" + lower + "'.toLowerCase('" + locale.toString() + "')", lower, lower.toLowerCase( locale ) );
161 assertEquals( "'" + upper + "'.toUpperCase('" + locale.toString() + "')", upper, upper.toUpperCase( locale ) );
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164 assertTrue( "'" + upper + "'.equalsIgnoreCase('" + lower + "')", upper.equalsIgnoreCase( lower ) );
165 assertTrue( "'" + upper + "'.equalsIgnoreCase('" + expectedToLowerCase + "')",
166 upper.equalsIgnoreCase( expectedToLowerCase ) );
167 assertTrue( "'" + expectedToUpperCase + "'.equalsIgnoreCase('" + lower + "')",
168 expectedToUpperCase.equalsIgnoreCase( lower ) );
169 }
170 }
171 }