StrictMimeTokenStreamTest.java

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package org.apache.james.mime4j.parser;

import org.apache.james.mime4j.parser.Event;
import org.apache.james.mime4j.parser.MimeParseEventException;
import org.apache.james.mime4j.parser.MimeTokenStream;

import java.io.ByteArrayInputStream;

import junit.framework.TestCase;

public class StrictMimeTokenStreamTest extends TestCase {
    
    private static final String HEADER_ONLY = "From: foo@abr.com\r\nSubject: A subject\r\n";
    private static final String CORRECT_HEADERS = HEADER_ONLY + "\r\n";
    
    public void testUnexpectedEndOfHeaders() throws Exception {
        
        MimeTokenStream parser = MimeTokenStream.createStrictValidationStream();
        
        parser.parse(new ByteArrayInputStream(HEADER_ONLY.getBytes()));
        
        assertEquals("Headers start", MimeTokenStream.T_START_HEADER, parser.next());
        assertEquals("Field", MimeTokenStream.T_FIELD, parser.next());
        try {
            parser.next();
            fail("Expected exception to be thrown");
        } catch (MimeParseEventException e) {
            assertEquals("Premature end of headers", Event.HEADERS_PREMATURE_END, e.getEvent());
        }
     }
    
    public void testCorrectEndOfHeaders() throws Exception {
        
        MimeTokenStream parser = MimeTokenStream.createStrictValidationStream();
        
        parser.parse(new ByteArrayInputStream(CORRECT_HEADERS.getBytes()));
        
        assertEquals("Headers start", MimeTokenStream.T_START_HEADER, parser.next());
        assertEquals("From header", MimeTokenStream.T_FIELD, parser.next());
        assertEquals("Subject header", MimeTokenStream.T_FIELD, parser.next());
        assertEquals("End message", MimeTokenStream.T_END_HEADER, parser.next());
     }
}