Java UTF8 compareWithGold(String goldfile, String outputfile)

Description

Compare contents of golden file with test output file line by line.

License

Open Source License

Parameter

Parameter	Description
goldfile	Golden output file name
outputfile	Test output file name

Exception

Parameter	Description
IOException	if an I/O error occurs reading from the file or amalformed or unmappable byte sequence is read.

Return

true if two files are identical. false if two files are not identical.

Declaration

public static boolean compareWithGold(String goldfile, String outputfile) throws IOException 

Method Source Code

//package com.java2s;
/*/*from   w w  w  . j  a va2 s  . c  o m*/
 * Copyright (c) 2014, 2016, 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.IOException;

import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;

import java.nio.file.Files;
import java.nio.file.Paths;

public class Main {
    /**
     * Compare contents of golden file with test output file line by line.
     * return true if they're identical.
     * @param goldfile Golden output file name
     * @param outputfile Test output file name
     * @return true if two files are identical.
     *         false if two files are not identical.
     * @throws IOException if an I/O error occurs reading from the file or a
     *         malformed or unmappable byte sequence is read.
     */
    public static boolean compareWithGold(String goldfile, String outputfile) throws IOException {
        return compareWithGold(goldfile, outputfile, StandardCharsets.UTF_8);
    }

    /**
     * Compare contents of golden file with test output file line by line.
     * return true if they're identical.
     * @param goldfile Golden output file name.
     * @param outputfile Test output file name.
     * @param cs the charset to use for decoding.
     * @return true if two files are identical.
     *         false if two files are not identical.
     * @throws IOException if an I/O error occurs reading from the file or a
     *         malformed or unmappable byte sequence is read.
     */
    public static boolean compareWithGold(String goldfile, String outputfile, Charset cs) throws IOException {
        boolean isSame = Files.readAllLines(Paths.get(goldfile))
                .equals(Files.readAllLines(Paths.get(outputfile), cs));
        if (!isSame) {
            System.err.println("Golden file " + goldfile + " :");
            Files.readAllLines(Paths.get(goldfile)).forEach(System.err::println);
            System.err.println("Output file " + outputfile + " :");
            Files.readAllLines(Paths.get(outputfile), cs).forEach(System.err::println);
        }
        return isSame;
    }
}

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