09-10-2002
Many people simply pipe mail received by either an MTA or MUA to a process. An MTA, such as sendmail, can receive mail and pipe it to a process. Often, mail is received by an MTA and sent to a user mailbox via a local MUA, and the MUA forwards the mail, via a pipe, to the standard-in.
Often, in a .forward file in a user directory has something like,
"|/home/user/bin/myprocess".
Or, in a file like the sendmail aliases file:
joe.user: "|/home/user/bin/myprocess"
There are many reasons to do this, a person can simply send mail to a host and in the message have embedded tokens that could be used for anything imaginable... for example, you could send a message to a user aliase and have an embedded command (with embedded security) telling your home computer to turn off the lights in your house (if you had a interface to your home lighting)....
You can literally do anything you can imagine by sending mail to a process.... your imagination is the limit.... you could send mail to our home computer and with an embedded token that could be used by a process to activate a video camera, another example.
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LEARN ABOUT DEBIAN
email::send::test
Email::Send::Test(3pm) User Contributed Perl Documentation Email::Send::Test(3pm)
NAME
Email::Send::Test - Captures emails sent via Email::Send for testing
SYNOPSIS
# Load as normal
use Email::Send;
use Email::Send::Test;
# Always clear the email trap before each test to prevent unexpected
# results, and thus spurious test results.
Email::Send::Test->clear;
### BEGIN YOUR CODE TO BE TESTED (example follows)
my $sender = Email::Send->new({ mailer => 'Test' });
$sender->send( $message );
### END YOUR CODE TO BE TESTED
# Check that the number and type (and content) of mails
# matched what you expect.
my @emails = Email::Send::Test->emails;
is( scalar(@emails), 1, 'Sent 1 email' );
isa_ok( $emails[0], 'Email::MIME' ); # Email::Simple subclasses pass through
DESCRIPTION
Email::Send::Test is a driver for use in testing applications that use Email::Send to send email.
To be able to use it in testing, you will need some sort of configuration mechanism to specify the delivery method to be used, or some
other way that in your testing scripts you can convince your code to use "Test" as the mailer, rather than "Sendmail" or another real
mailer.
How does it Work
Email::Send::Test is a trap for emails. When an email is sent, it adds the emails to an internal array without doing anything at all to
them, and returns success to the caller.
If your application sends one email, there will be one in the trap. If you send 20, there will be 20, and so on.
A typical test will involve doing running some code that should result in an email being sent, and then checking in the trap to see if the
code did actually send out the email.
If you want you can get the emails out the trap and examine them. If you only care that something got sent you can simply clear the trap
and move on to your next test.
The Email Trap
The email trap is a simple array fills with whatever is sent.
When you send an email, it is pushed onto the end of the array. You can access the array directly if you wish, or use the methods provided.
METHODS
send $message
As for every other Email::Send mailer, "send" takes the message to be sent.
However, in our case there are no arguments of any value to us, and so they are ignored.
It is worth nothing that we do NOTHING to check or alter the email. For example, if we are passed "undef" it ends up as is in the trap. In
this manner, you can see exactly what was sent without any possible tampering on the part of the testing mailer.
Of course, this doesn't prevent any tampering by Email::Send itself :)
Always returns true.
emails
The "emails" method is the preferred and recommended method of getting access to the email trap.
In list context, returns the content of the trap array as a list.
In scalar context, returns the number of items in the trap.
clear
The "clear" method resets the trap, emptying it.
It is recommended you always clear the trap before each test to ensure any existing emails are removed and don't create a spurious test
result.
Always returns true.
deliveries
This method returns a list of arrayrefs, one for each call to "send" that has been made. Each arrayref is in the form:
[ $mailer, $email, @rest ]
The first element is the invocant on which "send" was called. The second is the email that was given to "send". The third is the rest of
the arguments given to "send".
SUPPORT
All bugs should be filed via the CPAN bug tracker at
http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Email-Send-Test <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Email-Send-Test>
For other issues, or commercial enhancement or support, contact the author.
AUTHORS
Current maintainer: Ricardo SIGNES, <rjbs@cpan.org>.
Original author: Adam Kennedy <cpan@ali.as>, <http://ali.as/>
COPYRIGHT
Copyright (c) 2004 - 2005 Adam Kennedy. All rights reserved. This program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
The full text of the license can be found in the LICENSE file included with this module.
perl v5.12.4 2011-08-31 Email::Send::Test(3pm)