Plack::Test(3) User Contributed Perl Documentation Plack::Test(3)NAMEPlack::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";
};
DESCRIPTIONPlack::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(3)
