/*

 * Copyright (c) 2017, 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 java.io.ByteArrayOutputStream;

import java.io.IOException;

import java.nio.charset.Charset;

import java.nio.charset.StandardCharsets;

import org.testng.Assert;

import org.testng.annotations.DataProvider;

import org.testng.annotations.Test;

/**

 * @test

 * @bug 8183743

 * @summary Test to verify the new overload method with Charset functions the same

 * as the existing method that takes a charset name.

 * @run testng EncodingTest

 */

public class EncodingTest {

    /*

     * DataProvider for the toString method test. Provides the following fields:

     * byte array, charset name string, charset object

     */

    @DataProvider(name = "parameters")

    public Object[][] getParameters() throws IOException {

        byte[] data = getData();

        return new Object[][]{

            {data, StandardCharsets.UTF_8.name(), StandardCharsets.UTF_8},

            {data, StandardCharsets.ISO_8859_1.name(), StandardCharsets.ISO_8859_1},

        };

    }

    /**

     * Verifies that the new overload method that takes a Charset is equivalent to

     * the existing one that takes a charset name.

     * @param data a byte array

     * @param csn the charset name

     * @param charset the charset

     * @throws Exception if the test fails

     */

    @Test(dataProvider = "parameters")

    public void test(byte[] data, String csn, Charset charset) throws Exception {

        ByteArrayOutputStream baos = new ByteArrayOutputStream();

        baos.write(data);

        String str1 = baos.toString(csn);

        String str2 = baos.toString(charset);

        Assert.assertEquals(str1, str2);

    }

    /*

     * Returns an array containing a character that's invalid for UTF-8

     * but valid for ISO-8859-1

     */

    byte[] getData() throws IOException {

        String str1 = "A string that contains ";

        String str2 = " , an invalid character for UTF-8.";

        ByteArrayOutputStream baos = new ByteArrayOutputStream();

        baos.write(str1.getBytes());

        baos.write(0xFA);

        baos.write(str2.getBytes());

        return baos.toByteArray();

    }

}