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/*
* Copyright (c) 2005, 2019, 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 4997655 5071718 7000913
* @summary (bf) CharBuffer.slice() on wrapped CharSequence results in wrong position
*/
import java.nio.CharBuffer;
import java.nio.InvalidMarkException;
import java.util.function.BiConsumer;
import java.util.function.Consumer;
public class StringCharBufferSliceTest {
public static void main( String[] args) throws Exception {
System.out.println(
">>> StringCharBufferSliceTest-main: testing the slice method...");
final String in = "for testing";
System.out.println(
">>> StringCharBufferSliceTest-main: testing with the position 0.");
CharBuffer buff = CharBuffer.wrap(in);
test(buff, buff.slice());
test(buff, buff.slice(0, buff.remaining()));
System.out.println(
">>> StringCharBufferSliceTest-main: testing with new position.");
buff.position(2);
test(buff, buff.slice());
test(buff, buff.slice(2, buff.remaining()));
System.out.println(
">>> StringCharBufferSliceTest-main: testing with non zero initial position.");
buff = CharBuffer.wrap(in, 3, in.length());
test(buff, buff.slice());
test(buff, buff.slice(0, buff.remaining()));
System.out.println(
">>> StringCharBufferSliceTest-main: testing slice result with get()");
buff.position(4);
buff.limit(7);
BiConsumer<CharBuffer,CharBuffer> bitest = (b, s) -> {
for (int i = 0; i < 3; i++) {
if (s.get() != b.get()) {
throw new RuntimeException
("Wrong characters in slice result.");
}
}
};
bitest.accept(buff, buff.slice());
buff.position(4);
bitest.accept(buff, buff.slice(4, 3));
System.out.println(
">>> StringCharBufferSliceTest-main: testing slice result with get(int)");
buff.position(4);
buff.limit(7);
bitest = (b, s) -> {
for (int i = 0; i < 3; i++) {
if (s.get(i) != b.get(4 + i)) {
throw new RuntimeException
("Wrong characters in slice result.");
}
}
};
bitest.accept(buff, buff.slice());
buff.position(4);
bitest.accept(buff, buff.slice(4, 3));
System.out.println(
">>> StringCharBufferSliceTest-main: testing slice with result of slice");
buff.position(0);
buff.limit(buff.capacity());
Consumer<CharBuffer> test = (s) -> {
for (int i=0; i<4; i++) {
s.position(i);
CharBuffer nextSlice = s.slice();
if (nextSlice.position() != 0)
throw new RuntimeException
("New buffer's position should be zero");
if (!nextSlice.equals(s))
throw new RuntimeException("New buffer should be equal");
s = nextSlice;
}
};
test.accept(buff.slice());
test.accept(buff.slice(0, buff.capacity()));
System.out.println(
">>> StringCharBufferSliceTest-main: testing toString.");
buff.position(4);
buff.limit(7);
test = (s) -> {
if (!s.toString().equals("tes")) {
throw new RuntimeException
("bad toString() after slice(): " + s.toString());
}
};
test.accept(buff.slice());
test.accept(buff.slice(4, 3));
System.out.println(
">>> StringCharBufferSliceTest-main: testing subSequence.");
buff.position(4);
buff.limit(8);
test = (s) -> {
CharSequence subSeq = s.subSequence(1, 3);
if (subSeq.charAt(0) != 'e' || subSeq.charAt(1) != 's') {
throw new RuntimeException
("bad subSequence() after slice(): '" + subSeq + "'");
}
};
test.accept(buff.slice());
test.accept(buff.slice(4, 4));
System.out.println(
">>> StringCharBufferSliceTest-main: testing duplicate.");
buff.position(4);
buff.limit(8);
test = (s) -> {
CharBuffer dupe = s.duplicate();
if (dupe.charAt(0) != 't' || dupe.charAt(1) != 'e'
|| dupe.charAt(2) != 's' || dupe.charAt(3) != 't') {
throw new RuntimeException
("bad duplicate() after slice(): '" + dupe + "'");
}
};
test.accept(buff.slice());
test.accept(buff.slice(4, 4));
System.out.println(">>> StringCharBufferSliceTest-main: done!");
}
public static void test(CharBuffer buff, CharBuffer slice) throws RuntimeException {
boolean marked = false;
try {
slice.reset();
marked = true;
} catch (InvalidMarkException ime) {
// expected
}
if (marked ||
slice.position() != 0 ||
buff.remaining() != slice.limit() ||
buff.remaining() != slice.capacity()) {
throw new RuntimeException(
"Calling the CharBuffer.slice method failed.");
}
}
}
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