apache-mime4j-0.6/src/test/java/org/apache/james/mime4j/codec/QuotedPrintableOutputStreamTest.java

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package org.apache.james.mime4j.codec;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;

import junit.framework.TestCase;

public class QuotedPrintableOutputStreamTest extends TestCase {

    public void testEncode() throws IOException {
        ByteArrayOutputStream bos = null;
        QuotedPrintableOutputStream encoder = null;
        
        /*
         * Simple initial test.
         */
        bos = new ByteArrayOutputStream();
        encoder = new QuotedPrintableOutputStream(bos, false);
        encoder.write(fromString("This is the plain text message containing a few euros: 100 \u20ac!"));
        encoder.close();
        assertEquals("This is the plain text message containing a few euros: 100 =E2=82=AC!",
                toString(bos.toByteArray()));
    }

    public void testEncodeUnderlyingStreamStaysOpen() throws IOException {
        ByteArrayOutputStream bos = null;
        QuotedPrintableOutputStream encoder = null;
        
        bos = new ByteArrayOutputStream();
        encoder = new QuotedPrintableOutputStream(bos, false);
        encoder.write(fromString("This is the plain text message containing a few euros: 100 \u20ac!"));
        encoder.close();

        try {
            encoder.write('b');
            fail();
        } catch (IOException expected) {
        }
        
        bos.write('y');
        bos.write('a');
        bos.write('d');
        bos.write('a');
        assertEquals("This is the plain text message containing a few euros: 100 =E2=82=AC!yada",
                toString(bos.toByteArray()));
    }

    private byte[] fromString(String s) {
        try {
            return s.getBytes("UTF-8");
        } catch (UnsupportedEncodingException e) {
            fail(e.getMessage());
            return null;
        }
    }

    private String toString(byte[] b) {
        try {
            return new String(b, "US-ASCII");
        } catch (UnsupportedEncodingException e) {
            fail(e.getMessage());
            return null;
        }
    }
}