package org.apache.maven.scm.provider.git.gitexe.command.update;

import java.io.BufferedReader;
import java.io.File;
import java.io.Reader;

import org.apache.maven.scm.ScmTestCase;
import org.codehaus.plexus.util.ReaderFactory;
import org.junit.Test;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;

/*
 * 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.
 */

/**
 * @author <a href="mailto:struberg@yahoo.de">Mark Struberg</a>
 * @since 1.2
 *
 */
public class GitLatestRevisionCommandConsumerTest
        extends ScmTestCase
{
    @Test
    public void testUpToDate()
        throws Exception
    {

        GitLatestRevisionCommandConsumer consumer = buildGitLatestRevisionCommandConsumer( "/src/test/resources/git/update/git-update-latest-rev.out" );

        String latestRev = consumer.getLatestRevision();

        assertNotNull( latestRev );
        assertEquals( "a300c56a341bae8d0eb5ec4ed5551a11c75a5a6e", latestRev );
    }

    
    // utils methods

    private GitLatestRevisionCommandConsumer buildGitLatestRevisionCommandConsumer( String fileName )
        throws Exception
    {
        GitLatestRevisionCommandConsumer consumer = new GitLatestRevisionCommandConsumer();

        BufferedReader r = getGitLogBufferedReader( fileName );

        String line;

        while ( ( line = r.readLine() ) != null )
        {
            //System.out.println(" line " + line );
            consumer.consumeLine( line );
        }
        return consumer;
    }

    private BufferedReader getGitLogBufferedReader( String fileName )
        throws Exception
    {
        File f = getTestFile( fileName );
        Reader reader = ReaderFactory.newReader( f, "UTF-8" );
        return new BufferedReader( reader );
    }
}
