Plack::Test(3pm)					User Contributed Perl Documentation					  Plack::Test(3pm)

NAME

       Plack::Test - Test PSGI applications with various backends

SYNOPSIS

	 use Plack::Test;

	 # named params
	 test_psgi
	     app => sub {
		 my $env = shift;
		 return [ 200, [ 'Content-Type' => 'text/plain' ], [ "Hello World" ] ],
	     },
	     client => sub {
		 my $cb  = shift;
		 my $req = HTTP::Request->new(GET => "http://localhost/hello");
		 my $res = $cb->($req);
		 like $res->content, qr/Hello World/;
	     };

	  use HTTP::Request::Common;

	  # positional params (app, client)
	  my $app = sub { return [ 200, [], [ "Hello "] ] };
	  test_psgi $app, sub {
	      my $cb  = shift;
	      my $res = $cb->(GET "/");
	      is $res->content, "Hello";
	  };

DESCRIPTION

       Plack::Test is a unified interface to test PSGI applications using HTTP::Request and HTTP::Response objects. It also allows you to run PSGI
       applications in various ways. The default backend is "Plack::Test::MockHTTP", but you may also use any Plack::Handler implementation to run
       live HTTP requests against at web server

FUNCTIONS

       test_psgi
	     test_psgi $app, $client;
	     test_psgi app => $app, client => $client;

	   Runs the client test code $client against a PSGI application $app. The client callback gets one argument $cb, a callback that accepts
	   an "HTTP::Request" object and returns an "HTTP::Response" object.

	   Use HTTP::Request::Common to import shortcuts for creating requests for "GET", "POST", "DELETE", and "PUT" operations.

	   For your convenience, the "HTTP::Request" given to the callback automatically uses the HTTP protocol and the localhost (127.0.0.1 by
	   default), so the following code just works:

	     use HTTP::Request::Common;
	     test_psgi $app, sub {
		 my $cb  = shift;
		 my $res = $cb->(GET "/hello");
	     };

	   Note that however, it is not a good idea to pass an arbitrary (i.e. user-input) string to "GET" or even "HTTP::Request->new" by
	   assuming that it always represents a path, because:

	     my $req = GET "//foo/bar";

	   would represent a request for a URL that has no scheme, has a hostname foo and a path /bar, instead of a path //foo/bar which you might
	   actually want.

OPTIONS

       Specify the Plack::Test backend using the environment variable "PLACK_TEST_IMPL" or $Plack::Test::Impl package variable.

       The available values for the backend are:

       MockHTTP
	   (Default) Creates a PSGI env hash out of HTTP::Request object, runs the PSGI application in-process and returns HTTP::Response.

       Server
	   Runs one of Plack::Handler backends ("Standalone" by default) and sends live HTTP requests to test.

       ExternalServer
	   Runs tests against an external server specified in the "PLACK_TEST_EXTERNALSERVER_URI" environment variable instead of spawning the
	   application in a server locally.

       For instance, test your application with the "HTTP::Server::ServerSimple" server backend with:

	 > env PLACK_TEST_IMPL=Server PLACK_SERVER=HTTP::Server::ServerSimple 
	   prove -l t/test.t

AUTHOR

       Tatsuhiko Miyagawa

perl v5.14.2							    2011-09-20							  Plack::Test(3pm)