/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * 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
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.james.mime4j.parser;

import org.apache.james.mime4j.ExampleMail;
import org.apache.james.mime4j.parser.MimeTokenStream;
import org.apache.james.mime4j.parser.RecursionMode;

import java.io.ByteArrayInputStream;

import junit.framework.TestCase;

public class MimeStreamTokenMessageRfc822Test extends TestCase {

    MimeTokenStream stream;
    
    protected void setUp() throws Exception {
        super.setUp();
        stream = new MimeTokenStream();
        stream.parse(new ByteArrayInputStream(ExampleMail.MIME_RFC822_SIMPLE_BYTES));
    }

    protected void tearDown() throws Exception {
        super.tearDown();
    }
    
    public void testShouldParseMessageRFC822CorrectWithDefaultConfiguration() throws Exception {
        nextIs(MimeTokenStream.T_START_HEADER);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_END_HEADER);
        nextIs(MimeTokenStream.T_START_MESSAGE);
        nextIs(MimeTokenStream.T_START_HEADER);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_END_HEADER);
        nextIs(MimeTokenStream.T_BODY);
        nextIs(MimeTokenStream.T_END_MESSAGE);
        nextIs(MimeTokenStream.T_END_MESSAGE);
        nextIs(MimeTokenStream.T_END_OF_STREAM);
    }
    
    public void testShouldParseMessageRFC822CorrectWithNoRecurse() throws Exception {
        stream.setRecursionMode(RecursionMode.M_NO_RECURSE);
        nextIs(MimeTokenStream.T_START_HEADER);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_END_HEADER);
        nextIs(MimeTokenStream.T_BODY);
        nextIs(MimeTokenStream.T_END_MESSAGE);
        nextIs(MimeTokenStream.T_END_OF_STREAM);
    }
    
    public void testShouldParseMessageRFC822CorrectWithFlat() throws Exception {
        stream.setRecursionMode(RecursionMode.M_FLAT);
        nextIs(MimeTokenStream.T_START_HEADER);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_FIELD);
        nextIs(MimeTokenStream.T_END_HEADER);
        nextIs(MimeTokenStream.T_BODY);
        nextIs(MimeTokenStream.T_END_MESSAGE);
        nextIs(MimeTokenStream.T_END_OF_STREAM);
    }
    
    private void nextIs(int state) throws Exception {
        assertEquals(MimeTokenStream.stateToString(state), MimeTokenStream.stateToString(stream.next()));
    }
}
