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 * to you under the Apache License, Version 2.0 (the            *
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package org.apache.james.test.functional;

import java.io.InputStream;
import java.util.Locale;

import org.junit.After;


/**
 * A Protocol test which reads the test protocol session from a file. The file
 * read is taken as ".test", where  is the value passed
 * into the constructor. Subclasses of this test can set up {@link #preElements}
 * and {@link #postElements} for extra elements not defined in the protocol
 * session file.
 */
public abstract class AbstractSimpleScriptedTestProtocol extends
        AbstractProtocolTestFramework {
    private FileProtocolSessionBuilder builder = new FileProtocolSessionBuilder();

    private static final Locale BASE_DEFAULT_LOCALE = Locale.getDefault();

    private final String scriptDirectory;

    /**
     * Sets up a SimpleFileProtocolTest which reads the protocol session from a
     * file of name ".test". This file should be available in the
     * classloader in the same location as this test class.
     * @param scriptDirectory name of the directory containing the scripts to be run
     * @param fileName
     *            The name of the file to read protocol elements from.
     * @throws Exception 
     */
    public AbstractSimpleScriptedTestProtocol(HostSystem hostSystem, String userName, String password, String scriptDirectory) throws Exception {
        super(hostSystem, userName, password);
        this.scriptDirectory = scriptDirectory;
    }

    @After
    public void tearDown() throws Exception {
        super.tearDown();
        Locale.setDefault(BASE_DEFAULT_LOCALE);
    }

    /**
     * Reads test elements from the protocol session file and adds them to the
     * {@link #testElements} ProtocolSession. Then calls {@link #runSessions}.
     * 
     * @param locale
     *            execute the test using this locale
     */
    protected void scriptTest(String fileName, Locale locale) throws Exception {
        Locale.setDefault(locale);
        addTestFile(fileName + ".test", testElements);
        runSessions();
    }

    /**
     * Finds the protocol session file identified by the test name, and builds
     * protocol elements from it. All elements from the definition file are
     * added to the supplied ProtocolSession.
     * 
     * @param fileName
     *            The name of the file to read
     * @param session
     *            The ProtocolSession to add elements to.
     */
    protected void addTestFile(String fileName, ProtocolSession session) throws Exception {
        fileName = scriptDirectory + fileName;
        // Need to find local resource.
        InputStream is = this.getClass().getResourceAsStream(fileName);
        if (is == null) {
            throw new Exception("Test Resource '" + fileName + "' not found.");
        }

        builder.addProtocolLinesFromStream(is, session, fileName);
    }
}




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