import com.icegreen.greenmail.junit.GreenMailRule; //导入依赖的package包/类
/**
 * Helper method to write assertions on mails using fluent API.
 * For example:
 * <pre>
 * assertThat(greenMail).receivedMessages()
 *   .count(is(1))
 *   .message(0)
 *     .subject(is("Test"))
 *     .from().address(hasItems("[email protected]")).and()
 *     .to().address(hasItems("[email protected]")).and()
 *   .body()
 *      .contentAsString(is("body"))
 *      .contentType(startsWith("text/plain")).and()
 *   .alternative(nullValue())
 *   .attachments(hasSize(1))
 *   .attachment("04-Java-OOP-Basics.pdf")
 *      .content(is(resource("/attachment/04-Java-OOP-Basics.pdf")))
 *      .contentType(startsWith("application/pdf"))
 *      .filename(is("04-Java-OOP-Basics.pdf"))
 *      .disposition(is(ATTACHMENT_DISPOSITION));
 * </pre>
 * 
 * @param greenMail
 *            email server that stores received messages
 * @return builder for fluent assertions on received messages
 */
// @formatter:on
public static ReceivedEmailsAssert assertThat(GreenMailRule greenMail) {
	return new ReceivedEmailsAssert(Arrays.asList(greenMail.getReceivedMessages()));
}
 

import com.icegreen.greenmail.junit.GreenMailRule; //导入依赖的package包/类
/**
 * Retrieve mail through IMAP and POP3 and check sender and receivers
 *
 * @param greenMail Greenmail instance to read from
 * @param addr      Address of account to retrieve
 */
private void retrieveAndCheck(GreenMailRule greenMail, InternetAddress addr) throws IOException, MessagingException {
    String address = addr.getAddress();
    retrieveAndCheck(greenMail.getPop3(), address);
    retrieveAndCheck(greenMail.getImap(), address);
}
 

import com.icegreen.greenmail.junit.GreenMailRule; //导入依赖的package包/类
/**
 * Retrieve mail through IMAP and POP3 and check sender and receivers
 *
 * @param greenMail Greenmail instance to read from
 * @param addr      Address of account to retrieve
 */
private void retrieveAndCheckReplyTo(GreenMailRule greenMail, InternetAddress addr, InternetAddress...replyToAddrs) throws IOException, MessagingException {
    String address = addr.getAddress();
    retrieveAndCheckReplyTo(greenMail.getPop3(), address, replyToAddrs);
    retrieveAndCheckReplyTo(greenMail.getImap(), address, replyToAddrs);
}