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test/jdk/java/lang/StringBuffer/CompactStringBuffer.java

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rev 54318 : 8221430: StringBuffer(CharSequence) constructor truncates when -XX:-CompactStrings specified
Reviewed-by: igerasim, rriggs
Contributed-by: Andrew Leonard <andrew_m_leonard@uk.ibm.com>
   1 /*
   2  * Copyright (c) 2015, 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 import java.util.Arrays;
  25 
  26 import org.testng.annotations.Test;
  27 
  28 import static org.testng.Assert.assertEquals;
  29 import static org.testng.Assert.assertTrue;
  30 
  31 /*
  32  * @test
  33  * @bug 8077559
  34  * @summary Tests Compact String. This test is testing StringBuffer
  35  *          behavior related to Compact String.
  36  * @run testng/othervm -XX:+CompactStrings CompactStringBuffer
  37  * @run testng/othervm -XX:-CompactStrings CompactStringBuffer
  38  */
  39 
  40 public class CompactStringBuffer {
  41 
  42     /*
  43      * Tests for "A"
  44      */
  45     @Test
  46     public void testCompactStringBufferForLatinA() {
  47         final String ORIGIN = "A";
  48         /*
  49          * Because right now ASCII is the default encoding parameter for source
  50          * code in JDK build environment, so we escape them. same as below.
  51          */
  52         check(new StringBuffer(ORIGIN).append(new char[] { '\uFF21' }),
  53                 "A\uFF21");


 423         check(new StringBuffer().append(ascii).insert(3, "AB").toString(),
 424               "abcABdefgh");
 425         check(new StringBuffer().append(ascii).insert(3, "\u4e01\u4e02").toString(),
 426               "abc\u4e01\u4e02defgh");
 427 
 428         check(new StringBuffer().append(asciiMixed).insert(0, 'A').toString(),
 429               "Aabc\u4e00\u4e01\u4e02fgh");
 430         check(new StringBuffer().append(asciiMixed).insert(3, "A").toString(),
 431               "abcA\u4e00\u4e01\u4e02fgh");
 432 
 433         check(new StringBuffer().append(ascii).insert(3, 1234567).toString(),
 434               "abc1234567defgh");
 435         check(new StringBuffer().append(bmp).insert(3, 1234567).toString(),
 436               "\u4e00\u4e01\u4e021234567\u4e03\u4e04\u4e05\u4e06\u4e07\u4e08");
 437 
 438         ////////////////////////////////////////////////////////////////////
 439         check(new StringBuffer().append(ascii).append(1.23456).toString(),
 440               "abcdefgh1.23456");
 441         check(new StringBuffer().append(bmp).append(1.23456).toString(),
 442               "\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05\u4e06\u4e07\u4e081.23456");






 443     }
 444 
 445     private void checkGetChars(StringBuffer sb, int srcBegin, int srcEnd,
 446             char expected[]) {
 447         char[] dst = new char[srcEnd - srcBegin];
 448         sb.getChars(srcBegin, srcEnd, dst, 0);
 449         assertTrue(Arrays.equals(dst, expected));
 450     }
 451 
 452     private void checkSetCharAt(StringBuffer sb, int index, char ch,
 453             String expected) {
 454         sb.setCharAt(index, ch);
 455         check(sb, expected);
 456     }
 457 
 458     private void checkSetLength(StringBuffer sb, int newLength, String expected) {
 459         sb.setLength(newLength);
 460         check(sb, expected);
 461     }
 462 


   1 /*
   2  * Copyright (c) 2015, 2019, 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 import java.util.Arrays;
  25 
  26 import org.testng.annotations.Test;
  27 
  28 import static org.testng.Assert.assertEquals;
  29 import static org.testng.Assert.assertTrue;
  30 
  31 /*
  32  * @test
  33  * @bug 8077559 8221430
  34  * @summary Tests Compact String. This test is testing StringBuffer
  35  *          behavior related to Compact String.
  36  * @run testng/othervm -XX:+CompactStrings CompactStringBuffer
  37  * @run testng/othervm -XX:-CompactStrings CompactStringBuffer
  38  */
  39 
  40 public class CompactStringBuffer {
  41 
  42     /*
  43      * Tests for "A"
  44      */
  45     @Test
  46     public void testCompactStringBufferForLatinA() {
  47         final String ORIGIN = "A";
  48         /*
  49          * Because right now ASCII is the default encoding parameter for source
  50          * code in JDK build environment, so we escape them. same as below.
  51          */
  52         check(new StringBuffer(ORIGIN).append(new char[] { '\uFF21' }),
  53                 "A\uFF21");


 423         check(new StringBuffer().append(ascii).insert(3, "AB").toString(),
 424               "abcABdefgh");
 425         check(new StringBuffer().append(ascii).insert(3, "\u4e01\u4e02").toString(),
 426               "abc\u4e01\u4e02defgh");
 427 
 428         check(new StringBuffer().append(asciiMixed).insert(0, 'A').toString(),
 429               "Aabc\u4e00\u4e01\u4e02fgh");
 430         check(new StringBuffer().append(asciiMixed).insert(3, "A").toString(),
 431               "abcA\u4e00\u4e01\u4e02fgh");
 432 
 433         check(new StringBuffer().append(ascii).insert(3, 1234567).toString(),
 434               "abc1234567defgh");
 435         check(new StringBuffer().append(bmp).insert(3, 1234567).toString(),
 436               "\u4e00\u4e01\u4e021234567\u4e03\u4e04\u4e05\u4e06\u4e07\u4e08");
 437 
 438         ////////////////////////////////////////////////////////////////////
 439         check(new StringBuffer().append(ascii).append(1.23456).toString(),
 440               "abcdefgh1.23456");
 441         check(new StringBuffer().append(bmp).append(1.23456).toString(),
 442               "\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05\u4e06\u4e07\u4e081.23456");
 443 
 444         ////////////////////////////////////////////////////////////////////
 445         check(new StringBuffer((CharSequence)new StringBuffer(ascii)).toString(),
 446               ascii);
 447         check(new StringBuffer((CharSequence)new StringBuffer(asciiMixed)).toString(),
 448               asciiMixed);
 449     }
 450 
 451     private void checkGetChars(StringBuffer sb, int srcBegin, int srcEnd,
 452             char expected[]) {
 453         char[] dst = new char[srcEnd - srcBegin];
 454         sb.getChars(srcBegin, srcEnd, dst, 0);
 455         assertTrue(Arrays.equals(dst, expected));
 456     }
 457 
 458     private void checkSetCharAt(StringBuffer sb, int index, char ch,
 459             String expected) {
 460         sb.setCharAt(index, ch);
 461         check(sb, expected);
 462     }
 463 
 464     private void checkSetLength(StringBuffer sb, int newLength, String expected) {
 465         sb.setLength(newLength);
 466         check(sb, expected);
 467     }
 468 


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