src/test/java/org/apache/commons/csv/issues/JiraCsv206Test.java

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 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
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package org.apache.commons.csv.issues;

import static org.junit.jupiter.api.Assertions.assertEquals;

import java.io.IOException;
import java.io.StringReader;
import java.util.Iterator;

import org.apache.commons.csv.CSVFormat;
import org.apache.commons.csv.CSVParser;
import org.apache.commons.csv.CSVPrinter;
import org.apache.commons.csv.CSVRecord;
import org.junit.jupiter.api.Test;

class JiraCsv206Test {

    @Test
    void testJiraCsv206MultipleCharacterDelimiter() throws IOException {
        // Read with multiple character delimiter
        final String source = "FirstName[|]LastName[|]Address\r\nJohn[|]Smith[|]123 Main St.";
        final StringReader reader = new StringReader(source);
        final CSVFormat format = CSVFormat.DEFAULT.builder().setDelimiter("[|]").get();
        CSVRecord record = null;
        try (CSVParser csvParser = CSVParser.builder().setReader(reader).setFormat(format).get()) {
            final Iterator<CSVRecord> iterator = csvParser.iterator();
            record = iterator.next();
            assertEquals("FirstName", record.get(0));
            assertEquals("LastName", record.get(1));
            assertEquals("Address", record.get(2));
            record = iterator.next();
            assertEquals("John", record.get(0));
            assertEquals("Smith", record.get(1));
            assertEquals("123 Main St.", record.get(2));
        }
        // Write with multiple character delimiter
        // @formatter:off
        final String outString =
                "# Change delimiter to [I]\r\n" +
                "first name[I]last name[I]address\r\n" +
                "John[I]Smith[I]123 Main St.";
        // @formatter:on
        final String comment = "Change delimiter to [I]";
        // @formatter:off
        final CSVFormat formatExcel = CSVFormat.EXCEL.builder()
                .setDelimiter("[I]").setHeader("first name", "last name", "address")
                .setCommentMarker('#')
                .setHeaderComments(comment).get();
        // @formatter:on
        final StringBuilder out = new StringBuilder();
        try (CSVPrinter printer = formatExcel.print(out)) {
            printer.print(record.get(0));
            printer.print(record.get(1));
            printer.print(record.get(2));
        }
        final String s = out.toString();
        assertEquals(outString, s);
    }
}