/*

 * Copyright (c) 2015, 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 8055197 7186036

 @summary TextField should replace EOL character with space character

 @run main EOLTest

 */

import java.awt.Frame;

import java.awt.TextField;

import java.io.ByteArrayInputStream;

import java.io.ByteArrayOutputStream;

import java.io.ObjectInput;

import java.io.ObjectInputStream;

import java.io.ObjectOutput;

import java.io.ObjectOutputStream;

public class EOLTest {

    private Frame mainFrame;

    private TextField textField;

    private String testStrEOL;

    private boolean isTestFail;

    private int testFailCount;

    StringBuilder testFailMessage;

    private String expectedString = "Row1 Row2 Row3";

    public EOLTest() {

        mainFrame = new Frame();

        mainFrame.setSize(200, 200);

        mainFrame.setVisible(true);

        testFailMessage = new StringBuilder();

        testStrEOL = "Row1" + System.lineSeparator() + "Row2\nRow3";

    }

    private void testConstructor1() {

        textField = new TextField(testStrEOL);

        textField.setSize(200, 100);

        mainFrame.add(textField);

        checkTest();

        mainFrame.remove(textField);

    }

    private void testConstructor2() {

        textField = new TextField(30);

        textField.setSize(200, 100);

        mainFrame.add(textField);

        textField.setText(testStrEOL);

        checkTest();

        mainFrame.remove(textField);

    }

    private void testConstructor3() {

        textField = new TextField(testStrEOL, 30);

        textField.setSize(200, 100);

        mainFrame.add(textField);

        checkTest();

        mainFrame.remove(textField);

    }

    private void testSetText() {

        textField = new TextField();

        textField.setSize(200, 100);

        textField.setText(testStrEOL);

        mainFrame.add(textField);

        checkTest();

        mainFrame.remove(textField);

    }

    private void testDeserialization() {

        TextField textFieldToSerialize = new TextField(testStrEOL);

        textFieldToSerialize.setSize(200, 100);

        mainFrame.add(textFieldToSerialize);

        try {

            // Serialize TextField object "textFieldToSerialize".

            ByteArrayOutputStream baos = new ByteArrayOutputStream();

            ObjectOutput outStream = new ObjectOutputStream(baos);

            outStream.writeObject(textFieldToSerialize);

            // Search the text variable data through serialized object stream.

            byte[] streamedBytes = baos.toByteArray();

            int foundLoc = 0;

            for (int i = 0; i < streamedBytes.length; ++i) {

                if (streamedBytes[i] == expectedString.charAt(0)) {

                    foundLoc = i;

                    int j = 1;

                    for (; j < expectedString.length(); ++j) {

                        if (streamedBytes[i+j] != expectedString.charAt(j)) {

                            break;

                        }

                    }

                    if (j == expectedString.length()) {

                        break;

                    }

                }

                foundLoc = -1;

            }

            if (foundLoc == -1) {

                // Could not find text data in serialized object stream.

                throw new Exception("Could not find text data in serialized "

                    + "object stream.");

            }

            // Replace space character from serialized stream with

            // EOL character for testing de-serialization.

            String EOLChar = System.lineSeparator();

            String newExpectedString = "";

            for (int i = foundLoc, j = 0; j < expectedString.length(); ++i, ++j) {

                newExpectedString += (char)(streamedBytes[i]);

                if (streamedBytes[i] == ' ') {

                    int k = 0;

                    for (; k < EOLChar.length(); ++k) {

                        streamedBytes[i + k] = (byte) EOLChar.charAt(k);

                    }

                    i += k-1;

                    j += k-1;

                }

            }

            // New line character varies with platform,

            // ex. For windows '\r\n', for linux '\n'.

            // While replacing space from serialized object stream, the length

            // of EOL character will affect the expected string as well.

            expectedString = newExpectedString;

            // De-serialize TextField object stream.

            ByteArrayInputStream bais = new ByteArrayInputStream(streamedBytes);

            ObjectInput inStream = new ObjectInputStream(bais);

            textField = (TextField) inStream.readObject();

        } catch (Exception ex) {

            // Serialization or De-serialization failed.

            // Create textField with empty string to show failure.

            ex.printStackTrace();

            textField = new TextField();

        }

        checkTest();

        mainFrame.remove(textFieldToSerialize);

    }

    private void checkTest() {

        if (!textField.getText().equals(expectedString)) {

            testFailMessage.append("TestFail line : ");

            testFailMessage.append(Thread.currentThread().getStackTrace()[2].

                    getLineNumber());

            testFailMessage.append(" TextField.getText() : \"");

            testFailMessage.append(textField.getText());

            testFailMessage.append("\" does not match expected string : \"");

            testFailMessage.append(expectedString).append("\"");

            testFailMessage.append(System.getProperty("line.separator"));

            testFailCount++;

            isTestFail = true;

        }

    }

    private void checkFailures() {

        if (isTestFail) {

            testFailMessage.insert(0, "Test Fail count : " + testFailCount

                    + System.getProperty("line.separator"));

            dispose();

            throw new RuntimeException(testFailMessage.toString());

        }

    }

    private void dispose() {

        if (mainFrame != null) {

            mainFrame.dispose();

        }

    }

    public static void main(String[] args) {

        EOLTest testEOL = new EOLTest();

        testEOL.testConstructor1();

        testEOL.testConstructor2();

        testEOL.testConstructor3();

        testEOL.testSetText();

        testEOL.testDeserialization();

        testEOL.checkFailures();

        testEOL.dispose();

    }