package com.waldura.mail;


/**
 * The test case for the {@link Mailer} class.
 *
 * @author Renaud Waldura, 6/26/2001
 */

public class MailerTest
	extends junit.framework.TestCase
{
	/**
	 * This property is where the emails resulting from this test
	 * are sent to. The value is got from the global
	 * <code>server.properties</code>.
	 */
	private static final String ADMIN_EMAIL_ADDR_PROPERTY = "test.admin.email.address";

	private static final String TEST_EMAIL_FROM = "from-test@example.com";
	private static final String TEST_EMAIL_TO = "to-test@example.com";
	private static final String TEST_EMAIL_CC = "cc-test@example.com";
	private static final String TEST_EMAIL_SUBJECT = "[TESTCASE] test email #";
	private static final String TEST_EMAIL_BODY = "This a test e-mail message. Thank you for looking.\ncount = ";

	private static int counter = 0;

	private final MailMessage m = new MailMessage();
	private Mailer mailer;

	public MailerTest(String testName)
	{
		super(testName);
	}

	public void testSingletonMailer()
		throws MailingException
	{
		Mailer m1 = Mailer.getInstance();
		Mailer m2 = Mailer.getInstance();

		assertSame("not singleton", m1, m2);
	}

	public void testSendMailFailure()
        throws MailingException
	{
		try
		{
			Mailer.getInstance().send(m);
			fail("sending invalid e-mail message should fail");
		}
		catch (IllegalArgumentException iae)
        {
            // this is success case, it should fail
        }
	}

	public void testSendMailSuccess()
		throws MailingException
	{
		// initialize m for sending
		initMessage();

		Mailer.getInstance().send(m);
	}

	private void initMessage()
	{
		counter += 1;

		// fetch the admin email property from the global properties
		String adminEmailAddr = System.getProperty(ADMIN_EMAIL_ADDR_PROPERTY);
		assertNotNull("no admin email address", adminEmailAddr);

		// "from" address
		String testEmailAddr = "testcase-" + counter + "@example.com";

		m.setFrom(testEmailAddr);
		m.setTo(adminEmailAddr);
		// m.setCc(to);   // duplicates all emails -- enough already!
		m.setSubject( TEST_EMAIL_SUBJECT + counter );
		m.setBody( TEST_EMAIL_BODY + counter );
	}
}