src/test/java/org/apache/commons/csv/issues/JiraCsv148Test.java

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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *
 *   https://www.apache.org/licenses/LICENSE-2.0
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package org.apache.commons.csv.issues;

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

import org.apache.commons.csv.CSVFormat;
import org.apache.commons.csv.QuoteMode;
import org.junit.jupiter.api.Test;

class JiraCsv148Test {

    @Test
    void testWithIgnoreSurroundingSpacesEmpty() {
        // @formatter:off
        final CSVFormat format = CSVFormat.DEFAULT.builder()
            .setQuoteMode(QuoteMode.ALL)
            .setIgnoreSurroundingSpaces(true)
            .get();
        // @formatter:on
        assertEquals(
                "\"\",\" \",\" Single space on the left\",\"Single space on the right \"," +
                        "\" Single spaces on both sides \",\"   Multiple spaces on the left\"," +
                        "\"Multiple spaces on the right   \",\"  Multiple spaces on both sides     \"",
                format.format("", " ", " Single space on the left", "Single space on the right ", " Single spaces on both sides ",
                        "   Multiple spaces on the left", "Multiple spaces on the right   ", "  Multiple spaces on both sides     "));
    }

    /**
     * The difference between withTrim()and withIgnoreSurroundingSpace()： difference: withTrim() can remove the leading and trailing spaces and newlines in
     * quotation marks, while withIgnoreSurroundingSpace() cannot The same point: you can remove the leading and trailing spaces, tabs and other symbols.
     */
    @Test
    void testWithTrimEmpty() {
        // @formatter:off
        final CSVFormat format = CSVFormat.DEFAULT.builder()
            .setQuoteMode(QuoteMode.ALL)
            .setTrim(true)
            .get();
        // @formatter:on
        assertEquals(
                "\"\",\"\",\"Single space on the left\",\"Single space on the right\",\"Single spaces on both sides\",\"Multiple spaces on the left\"," +
                        "\"Multiple spaces on the right\",\"Multiple spaces on both sides\"",
                format.format("", " ", " Single space on the left", "Single space on the right ", " Single spaces on both sides ",
                        "   Multiple spaces on the left", "Multiple spaces on the right   ", "  Multiple spaces on both sides     "));
    }
}