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/*
* Copyright (c) 2025, 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.
*/
import org.testng.Assert;
import org.testng.annotations.Test;
/**
* @test
* @bug 8343110
* @summary Check for expected behavior of default implementation of
* CharSequence.getChars().
* @run testng GetChars
*/
public class GetChars {
private static CharSequence CS = new CharSequence() {
@Override
public int length() {
return 4;
}
@Override
public char charAt(int index) {
return "Test".charAt(index);
}
@Override
public CharSequence subSequence(int start, int end) {
throw new UnsupportedOperationException();
}
};
@Test
public void testExactCopy() {
var dst = new char[4];
CS.getChars(0, 4, dst, 0);
Assert.assertEquals(dst, new char[] {'T', 'e', 's', 't'});
}
@Test
public void testPartialCopy() {
var dst = new char[2];
CS.getChars(1, 3, dst, 0);
Assert.assertEquals(dst, new char[] {'e', 's'});
}
@Test
public void testPositionedCopy() {
var dst = new char[] {1, 2, 3, 4, 5, 6};
CS.getChars(0, 4, dst, 1);
Assert.assertEquals(dst, new char[] {1, 'T', 'e', 's', 't', 6});
}
@Test
public void testSrcBeginIsNegative() {
Assert.assertThrows(IndexOutOfBoundsException.class,
() -> CS.getChars(-1, 3, new char[4], 0));
}
@Test
public void testDstBeginIsNegative() {
Assert.assertThrows(IndexOutOfBoundsException.class,
() -> CS.getChars(0, 4, new char[4], -1));
}
@Test
public void testSrcBeginIsGreaterThanSrcEnd() {
Assert.assertThrows(IndexOutOfBoundsException.class,
() -> CS.getChars(4, 0, new char[4], 0));
}
@Test
public void testSrcEndIsGreaterThanSequenceLength() {
Assert.assertThrows(IndexOutOfBoundsException.class,
() -> CS.getChars(0, 5, new char[4], 0));
}
@Test
public void testRequestedLengthIsGreaterThanDstLength() {
Assert.assertThrows(IndexOutOfBoundsException.class,
() -> CS.getChars(0, 4, new char[3], 0));
}
@Test
public void testDstIsNull() {
Assert.assertThrows(NullPointerException.class,
() -> CS.getChars(0, 4, null, 0));
}
}
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