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package javax.mail.internet;

import java.util.Properties;

import javax.mail.Session;
import javax.mail.MessagingException;
import javax.mail.Message;
import javax.mail.internet.MimeMessage;

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

/**
 * Test that "add" methods for address headers result in only a single
 * address header, per RFC 2822.
 */
public class AddAddressHeaderTest {
 
    private static Session s = Session.getInstance(new Properties());
    private static InternetAddress[] setList = new InternetAddress[1];
    private static InternetAddress[] addList = new InternetAddress[1];

    static {
	try {
	    setList[0] = new InternetAddress("me@example.com");
	    addList[0] = new InternetAddress("you@example.com");
	} catch (MessagingException ex) {
	}
    }

    @Test
    public void testFrom() throws Exception {
        MimeMessage m = new MimeMessage(s);
	m.setFrom(setList[0]);
	m.addFrom(addList);
	m.saveChanges();
	String[] h = m.getHeader("From");
	assertEquals(1, h.length);
    }

    @Test
    public void testTo() throws Exception {
	testRecipients(Message.RecipientType.TO);
    }

    @Test
    public void testCc() throws Exception {
	testRecipients(Message.RecipientType.CC);
    }

    @Test
    public void testBcc() throws Exception {
	testRecipients(Message.RecipientType.BCC);
    }

    private void testRecipients(Message.RecipientType type) throws Exception {
        MimeMessage m = new MimeMessage(s);
	m.setRecipients(type, setList);
	m.addRecipients(type, addList);
	m.saveChanges();
	// XXX - depends on RecipientType.toString
	String[] h = m.getHeader(type.toString());
	assertEquals(1, h.length);
    }
}
