136 lines
4.9 KiB
Java
136 lines
4.9 KiB
Java
/*
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* Copyright (c) 2017, 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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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.nio.charset.Charset;
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import java.nio.charset.StandardCharsets;
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import java.nio.file.Paths;
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import java.util.Scanner;
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import org.testng.Assert;
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import org.testng.annotations.DataProvider;
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import org.testng.annotations.Test;
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/**
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* @test
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* @bug 8183743
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* @summary Test to verify the new overload method with Charset functions the
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* same as the existing method that takes a charset name.
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* @run testng EncodingTest
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*/
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public class EncodingTest {
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static String USER_DIR = System.getProperty("user.dir", ".");
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public static enum ConstructorType {
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FILE,
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PATH,
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INPUTSTREAM,
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READABLEBYTECHANNEL
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}
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static final String TEST_STRING = "abc \u0100 \u0101 \u0555 \u07FD \u07FF";
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@DataProvider(name = "parameters")
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public Object[][] getParameters() throws IOException {
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String csn = StandardCharsets.UTF_8.name();
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Charset charset = StandardCharsets.UTF_8;
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File file1 = new File(USER_DIR, "ScannerCharsetTest1.txt");
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File file2 = new File(USER_DIR, "ScannerCharsetTest2.txt");
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return new Object[][]{
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{ConstructorType.FILE, file1, file2, csn, charset},
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{ConstructorType.PATH, file1, file2, csn, charset},
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{ConstructorType.INPUTSTREAM, file1, file2, csn, charset},
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{ConstructorType.READABLEBYTECHANNEL, file1, file2, csn, charset},};
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}
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/**
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* Verifies that the overloading constructor behaves the same as the
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* existing one.
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*
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* @param type the type of the constructor
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* @param file1 file1 written with the name of a charset
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* @param file2 file2 written with a charset
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* @param csn the charset name
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* @param charset the charset
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* @throws IOException
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*/
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@Test(dataProvider = "parameters")
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void test(ConstructorType type, File file1, File file2, String csn, Charset charset)
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throws Exception {
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prepareFile(file1, TEST_STRING);
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prepareFile(file2, TEST_STRING);
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try (Scanner s1 = getScanner(type, file1.getPath(), csn, null);
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Scanner s2 = getScanner(type, file2.getPath(), null, charset);) {
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String result1 = s1.findInLine(TEST_STRING);
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String result2 = s2.findInLine(TEST_STRING);
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Assert.assertEquals(result1, result2);
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}
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}
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/*
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* Creates a Scanner over the given input file.
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*/
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Scanner getScanner(ConstructorType type, String file, String csn, Charset charset)
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throws Exception {
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if (csn != null) {
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switch (type) {
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case FILE:
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return new Scanner(new File(file), csn);
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case PATH:
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return new Scanner(Paths.get(file), csn);
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case INPUTSTREAM:
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FileInputStream fis = new FileInputStream(file);
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return new Scanner(fis, csn);
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case READABLEBYTECHANNEL:
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FileInputStream fis1 = new FileInputStream(file);
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return new Scanner(fis1.getChannel(), csn);
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}
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} else {
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switch (type) {
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case FILE:
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return new Scanner(new File(file), charset);
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case PATH:
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return new Scanner(Paths.get(file), charset);
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case INPUTSTREAM:
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FileInputStream fis = new FileInputStream(file);
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return new Scanner(fis, charset);
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case READABLEBYTECHANNEL:
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FileInputStream fis1 = new FileInputStream(file);
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return new Scanner(fis1.getChannel(), charset);
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}
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}
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return null;
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}
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void prepareFile(File file, String content) throws IOException {
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try (FileWriter writer = new FileWriter(file);) {
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writer.write(content);
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}
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}
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}
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