86 lines
3.2 KiB
Java
86 lines
3.2 KiB
Java
/*
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* Copyright (c) 2001, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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@test
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@bug 4260109
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@summary tests that the text limit is set to the maximum possible value
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@key headful
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*/
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import java.awt.BorderLayout;
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import java.awt.EventQueue;
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import java.awt.Frame;
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import java.awt.TextArea;
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public class TextLimitTest {
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static Frame frame;
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static TextArea textarea;
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public static void main(String[] args) throws Exception {
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try {
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EventQueue.invokeAndWait(() -> {
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StringBuffer buffer = new StringBuffer();
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frame = new Frame("Text Limit Test");
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textarea = new TextArea(3, 10);
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frame.setLayout(new BorderLayout());
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frame.add(textarea);
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frame.setSize(200, 200);
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frame.pack();
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frame.setVisible(true);
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/*
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* The magic number 0xF700 was choosen because of the two reasons:
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* - it shouldn't be greater since on win95 (even in native win32 apps)
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* adding more than 0xF800 symbols to a textarea doesn't always work,
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* - it shouldn't be less since in this case we won't run in the stack
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* overflow on Win95 even if we use W2A allocating memory on the stack.
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*/
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for (int i = 0; i < 0xF700; i += 0x10) {
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buffer.append("0123456789abcdef");
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}
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textarea.setText(buffer.toString());
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System.out.println("Text length before append: " +
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Integer.toString(textarea.getText().length(), 16));
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textarea.append("0123456789abcdef");
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int len = textarea.getText().length();
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System.out.println("Text length after append: " +
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Integer.toString(len, 16));
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if (len != 0xF710) {
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throw new RuntimeException("Test failed: textarea has " +
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"wrong text limit!");
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}
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});
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System.out.println("Test pass");
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} finally {
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EventQueue.invokeAndWait(() -> {
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if (frame != null) {
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frame.dispose();
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}
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});
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}
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}
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}
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