File: BuilderForwarding.java

package info (click to toggle)
openjdk-11 11.0.4%2B11-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 757,028 kB
  • sloc: java: 5,016,041; xml: 1,191,974; cpp: 934,731; ansic: 555,697; sh: 24,299; objc: 12,703; python: 3,602; asm: 3,415; makefile: 2,772; awk: 351; sed: 172; perl: 114; jsp: 24; csh: 3
file content (266 lines) | stat: -rw-r--r-- 9,540 bytes parent folder | download | duplicates (16)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
/*
 * Copyright (c) 2012, 2013, 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 6206780
 * @summary  Test forwarding of methods to super in StringBuilder
 * @author Jim Gish <jim.gish@oracle.com>
 */

import java.util.ArrayList;
import java.util.List;

public class BuilderForwarding {
    private static final String A_STRING_BUFFER_VAL = "aStringBuffer";
    private static final String A_STRING_BUILDER_VAL = "aStringBuilder";
    private static final String A_STRING_VAL = "aString";
    private static final String NON_EMPTY_VAL = "NonEmpty";

    public BuilderForwarding() {
        System.out.println( "Starting BuilderForwarding");
    }

    public static void main(String... args) {
        new BuilderForwarding().executeTestMethods();
    }

    public void executeTestMethods() {
        appendCharSequence();
        indexOfString();
        indexOfStringIntNull();
        indexOfStringNull();
        indexOfStringint();
        insertintCharSequence();
        insertintObject();
        insertintboolean();
        insertintchar();
        insertintdouble();
        insertintfloat();
        insertintint();
        insertintlong();
        lastIndexOfString();
        lastIndexOfStringint();
    }

    public void appendCharSequence() {
        // three different flavors of CharSequence
        CharSequence aString = A_STRING_VAL;
        CharSequence aStringBuilder = new StringBuilder(A_STRING_BUILDER_VAL);
        CharSequence aStringBuffer = new StringBuffer(A_STRING_BUFFER_VAL);

        assertEquals( /*actual*/ new StringBuilder().append(aString).toString(), /*expected*/ A_STRING_VAL );
        assertEquals( new StringBuilder().append(aStringBuilder).toString(), A_STRING_BUILDER_VAL );
        assertEquals( new StringBuilder().append(aStringBuffer).toString(), A_STRING_BUFFER_VAL );

        assertEquals( /*actual*/ new StringBuilder(NON_EMPTY_VAL).append(aString).toString(), NON_EMPTY_VAL+A_STRING_VAL );
        assertEquals( new StringBuilder(NON_EMPTY_VAL).append(aStringBuilder).toString(), NON_EMPTY_VAL+A_STRING_BUILDER_VAL );
        assertEquals( new StringBuilder(NON_EMPTY_VAL).append(aStringBuffer).toString(), NON_EMPTY_VAL+A_STRING_BUFFER_VAL );
    }


    public void indexOfString() {
        StringBuilder sb = new StringBuilder();
        // should be NPE if null passed
        try {

            sb.indexOf(null);
            throw new RuntimeException("Test failed: should have thrown NPE");


        } catch (NullPointerException npe) {
            // expected: passed
        } catch (Throwable t) {
            throw new RuntimeException("Test failed: should have thrown NPE. Instead threw "
                    + t);
        }
        sb = new StringBuilder("xyz");
        assertEquals( sb.indexOf("y"), 1 );
        assertEquals( sb.indexOf("not found"), -1 );
    }


    public void indexOfStringint() {
        StringBuilder sb = new StringBuilder();
        // should be NPE if null passed
        try {
            sb.indexOf(null,1);
            throw new RuntimeException("Test failed: should have thrown NPE");
        } catch (NullPointerException npe) {
            // expected: passed
        } catch (Throwable t) {
            throw new RuntimeException("Test failed: should have thrown NPE");
        }
        sb = new StringBuilder("xyyz");
        assertEquals( sb.indexOf("y",0), 1 );
        assertEquals( sb.indexOf("y",1), 1 );
        assertEquals( sb.indexOf("y",2), 2 );
        assertEquals( sb.indexOf("not found"), -1 );
    }


    public void indexOfStringIntNull() {
        StringBuffer sb = new StringBuffer();
        // should be NPE if null passed
        try {
            sb.indexOf(null,1);
            throw new RuntimeException("Test failed: should have thrown NPE");
        } catch (NullPointerException npe) {
            // expected: passed
        } catch (Throwable t) {
            throw new RuntimeException("Test failed: should have thrown NPE. Instead threw "
                    + t);
        }
    }


    public void indexOfStringNull() {
        StringBuilder sb = new StringBuilder();

        // should be NPE if null passed
        try {
            sb.indexOf(null);
            throw new RuntimeException("Test failed: should have thrown NPE");
        } catch (NullPointerException npe) {
            // expected: passed
        } catch (Throwable t) {
            throw new RuntimeException("Test failed: should have thrown NPE. Instead threw "
                    + t);
        }
    }


    public void insertintboolean() {
        boolean b = true;
        StringBuilder sb = new StringBuilder("012345");
        assertEquals( sb.insert( 2, b).toString(), "01true2345");
    }


    public void insertintchar() {
        char c = 'C';
        StringBuilder sb = new StringBuilder("012345");
        assertEquals( sb.insert( 2, c ).toString(), "01C2345");
    }


    public void insertintCharSequence() {
        final String initString = "012345";
        // three different flavors of CharSequence
        CharSequence aString = A_STRING_VAL;
        CharSequence aStringBuilder = new StringBuilder(A_STRING_BUILDER_VAL);
        CharSequence aStringBuffer = new StringBuffer(A_STRING_BUFFER_VAL);

        assertEquals( new StringBuilder(initString).insert(2, aString).toString(), "01"+A_STRING_VAL+"2345" );

        assertEquals( new StringBuilder(initString).insert(2, aStringBuilder).toString(), "01"+A_STRING_BUILDER_VAL+"2345" );

        assertEquals( new StringBuilder(initString).insert(2, aStringBuffer).toString(), "01"+A_STRING_BUFFER_VAL+"2345" );

        try {
            new StringBuilder(initString).insert(7, aString);
            throw new RuntimeException("Test failed: should have thrown IndexOutOfBoundsException");
        } catch (IndexOutOfBoundsException soob) {
            // expected: passed
        } catch (Throwable t) {
            throw new RuntimeException("Test failed: should have thrown IndexOutOfBoundsException, but instead threw " + t.getMessage());

        }
    }


    public void insertintdouble() {
        double d = 99d;
        StringBuilder sb = new StringBuilder("012345");
        assertEquals( sb.insert( 2, d ).toString(), "0199.02345");    }


    public void insertintfloat() {
        float f = 99.0f;
        StringBuilder sb = new StringBuilder("012345");
        assertEquals( sb.insert( 2, f ).toString(), "0199.02345");    }


    public void insertintint() {
        int i = 99;
        StringBuilder sb = new StringBuilder("012345");
        assertEquals( sb.insert( 2, i ).toString(), "01992345");
    }


    public void insertintlong() {
        long l = 99;
        StringBuilder sb = new StringBuilder("012345");
        assertEquals( sb.insert( 2, l ).toString(), "01992345");    }


    public void insertintObject() {
        StringBuilder sb = new StringBuilder("012345");
        List<String> ls = new ArrayList<String>();
        ls.add("A"); ls.add("B");
        String lsString = ls.toString();
        assertEquals( sb.insert(2, ls).toString(), "01"+lsString+"2345");

        try {
            sb.insert(sb.length()+1, ls);
            throw new RuntimeException("Test failed: should have thrown StringIndexOutOfBoundsException");
        } catch (StringIndexOutOfBoundsException soob) {
            // expected: passed
        } catch (Throwable t) {
            throw new RuntimeException("Test failed: should have thrown StringIndexOutOfBoundsException, but instead threw:"
                    + t);
        }
    }


    public void lastIndexOfString() {
        String xyz = "xyz";
        String xyz3 = "xyzxyzxyz";
        StringBuilder sb = new StringBuilder(xyz3);
        int pos = sb.lastIndexOf("xyz");
        assertEquals( pos, 2*xyz.length() );
    }


    public void lastIndexOfStringint() {
        StringBuilder sb = new StringBuilder("xyzxyzxyz");
        int pos = sb.lastIndexOf("xyz",5);
        assertEquals( pos, 3 );
        pos = sb.lastIndexOf("xyz", 6);
        assertEquals( pos, 6 );
    }

    public void assertEquals( String actual, String expected) {
        if (!actual.equals( expected )) {
            throw new RuntimeException( "Test failed: actual = '" + actual +
                    "', expected = '" + expected + "'");
        }
    }

    public void assertEquals( int actual, int expected) {
        if (actual != expected) {
            throw new RuntimeException( "Test failed: actual = '" + actual +
                    "', expected = '" + expected + "'");
        }
    }
}