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    * to you under the Apache License, Version 2.0 (the
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    *
   *   https://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
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   * KIND, either express or implied.  See the License for the
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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.Reader;
  import java.io.StringReader;
  
  import org.apache.commons.csv.CSVFormat;
  import org.apache.commons.csv.QuoteMode;
  import org.junit.jupiter.api.Test;
  
  /**
   * Tests [CSV-263] Print from Reader with embedded quotes generates incorrect output.
   */
  public class JiraCsv263Test {
  
      @Test
      public void testPrintFromReaderWithQuotes() throws IOException {
          // @formatter:off
          final CSVFormat format = CSVFormat.RFC4180.builder()
              .setDelimiter(',')
              .setQuote('"')
              .setEscape('?')
              .setQuoteMode(QuoteMode.NON_NUMERIC)
              .get();
          // @formatter:on
          final StringBuilder out = new StringBuilder();
  
          final Reader atStartOnly = new StringReader("\"a,b,c\r\nx,y,z");
          format.print(atStartOnly, out, true);
          assertEquals("\"\"\"a,b,c\r\nx,y,z\"", out.toString());
  
          final Reader atEndOnly = new StringReader("a,b,c\r\nx,y,z\"");
          out.setLength(0);
          format.print(atEndOnly, out, true);
          assertEquals("\"a,b,c\r\nx,y,z\"\"\"", out.toString());
  
          final Reader atBeginEnd = new StringReader("\"a,b,c\r\nx,y,z\"");
          out.setLength(0);
          format.print(atBeginEnd, out, true);
          assertEquals("\"\"\"a,b,c\r\nx,y,z\"\"\"", out.toString());
  
          final Reader embeddedBeginMiddle = new StringReader("\"a\",b,c\r\nx,\"y\",z");
          out.setLength(0);
          format.print(embeddedBeginMiddle, out, true);
          assertEquals("\"\"\"a\"\",b,c\r\nx,\"\"y\"\",z\"", out.toString());
  
          final Reader embeddedMiddleEnd = new StringReader("a,\"b\",c\r\nx,y,\"z\"");
          out.setLength(0);
          format.print(embeddedMiddleEnd, out, true);
          assertEquals("\"a,\"\"b\"\",c\r\nx,y,\"\"z\"\"\"", out.toString());
  
          final Reader nested = new StringReader("a,\"b \"and\" c\",d");
          out.setLength(0);
          format.print(nested, out, true);
          assertEquals("\"a,\"\"b \"\"and\"\" c\"\",d\"", out.toString());
      }
  
  }