0N/A/*
2362N/A * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation.
0N/A *
2362N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
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0N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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2362N/A */
2362N/A
0N/A/**
0N/A * @test
0N/A * @bug 6955504 6992121
0N/A * @summary Test the StringBuilder.ensureCapacity() with negative minimumCapacity
0N/A * and append() method with negative length input argument.
0N/A * Also, test the StringBuffer class.
0N/A */
0N/A
0N/Aimport java.util.ArrayList;
0N/Aimport java.util.Vector;
0N/A
0N/Apublic class EnsureCapacity {
0N/A public static void main(String[] args) {
0N/A testStringBuilder();
0N/A testStringBuffer();
0N/A }
0N/A
0N/A private static void checkCapacity(int before, int after) {
0N/A if (before != after) {
0N/A throw new RuntimeException("capacity is expected to be unchanged: " +
0N/A "before=" + before + " after=" + after);
0N/A }
0N/A }
0N/A
0N/A private static void testStringBuilder() {
0N/A StringBuilder sb = new StringBuilder("abc");
0N/A int cap = sb.capacity();
0N/A
0N/A // test if negative minimumCapacity
0N/A sb.ensureCapacity(Integer.MIN_VALUE);
0N/A checkCapacity(cap, sb.capacity());
0N/A
0N/A try {
0N/A char[] str = {'a', 'b', 'c', 'd'};
0N/A // test if negative length
0N/A sb.append(str, 0, Integer.MIN_VALUE + 10);
0N/A throw new RuntimeException("IndexOutOfBoundsException not thrown");
0N/A } catch (IndexOutOfBoundsException ex) {
0N/A }
0N/A }
0N/A
0N/A private static void testStringBuffer() {
0N/A StringBuffer sb = new StringBuffer("abc");
0N/A int cap = sb.capacity();
0N/A
0N/A // test if negative minimumCapacity
0N/A sb.ensureCapacity(Integer.MIN_VALUE);
0N/A checkCapacity(cap, sb.capacity());
0N/A
0N/A try {
0N/A char[] str = {'a', 'b', 'c', 'd'};
0N/A // test if negative length
0N/A sb.append(str, 0, Integer.MIN_VALUE + 10);
0N/A throw new RuntimeException("IndexOutOfBoundsException not thrown");
0N/A } catch (IndexOutOfBoundsException ex) {
0N/A }
0N/A }
0N/A}
0N/A