NAME

Mojo::Phantom - Interact with your client side code via PhantomJS

SYNOPSIS

use Mojolicious::Lite;

use Test::More;
use Test::Mojo::WithRoles qw/Phantom/;

any '/' => 'index';

my $t = Test::Mojo::WithRoles->new;
$t->phantom_ok('/' => <<'JS');
  var text = page.evaluate(function(){
    return document.getElementById('name').innerHTML;
  });
  perl.is(text, 'Bender', 'name changed after loading');
JS

done_testing;

__DATA__

@@ index.html.ep

<!DOCTYPE html>
<html>
  <head></head>
  <body>
    <p id="name">Leela</p>
    <script>
      (function(){ document.getElementById('name').innerHTML = 'Bender' })();
    </script>
  </body>
</html>

DESCRIPTION

Mojo::Phantom is the transport backbone for Test::Mojo::Role::Phantom. Currently it is used to evaluate javascript tests using PhantomJS, though more is possible. Please note that this class is not yet as stable as the public api for the test role.

WARNING

The upstream phantom.js has been retired in favor of headless chrome. A Mojo::Chrome (and related Test::Mojo::Role::Chrome) is planned and is already in the works (perhaps it is released already who knows?!). While this module will continue to function, just know that it depends on a project that is defunct.

ATTRIBUTES

Mojo::Phantom inherits the attributes from Mojo::Base and implements the following new ones.

arguments

An array reference containing command-line arguments to be passed directly to the PhantomJS process.

base

An instance of Mojo::URL used to make relative urls absolute. This is used, for example, in setting cookies

bind

A hash reference used to bind JS methods and Perl functions. Keys are methods to be created in the perl object in javascript. Values are functions for those methods to invoke when the message is received by the Perl process. The functions may be relative to the package or are absolute if they contain ::. If the function is false, then the key is used as the function name.

cookies

An array reference containing Mojo::Cookie::Response objects.

package

The package for binding relative function names. Defaults to main

setup

An additional string of javascript which is executed after the page object is created but before the url is opened.

sep

A string used to separate messages from the JS side. Defaults to --MOJO_PHANTOM_MSG--.

template

A string which is used to build a Mojo::Template object. It takes as its arguments the instance, a target url, and a string of javascript to be evaluated.

The default handles much of what this module does, you should be very sure of why you need to change this before doing so.

no_exit

Do not automatically call phantom.exit() after the provided JavaScript code. This is useful when testing asynchronous events.

note_console

Redirect console.log output to TAP as note events. This is usually helpful when writing tests. The default is off for Mojo::Phantom and on for Test::Mojo::Role::Phantom.

exe

The executable name or path to call PhantomJS. You may substitute a compatible platform, for example using casperjs to use CasperJS.

Note that while you can use this to specify the full path of an alternate version of PhantomJS, during the install of Mojo::Phantom you must have phantomjs in your PATH for configuration and testing.

METHODS

Mojo::Phantom inherits all methods from Mojo::Base and implements the following new ones.

execute_file

A lower level function which handles the message passing etc. You probably want execute_url. Takes a file path to start phantomjs with and a callback.

Returns a pre-initialized instance of Mojo::Phantom::Process. The end user likely does not need to worry about this object, though it might be useful if the process needs to be killed or the stream timeout needs to be lengthened.

execute_url

Builds the template for PhantomJS to execute and starts it. Takes a target url, a string of javascript to be executed in the context that the template provides and a callback. By default this is the page context. The return value is the same as "execute_file".

The executable name or path to call PhantomJS. You may substitute a compatible platform, for example using casperjs to use CasperJS.

NOTES

NOTE that if your Perl version does not provide CORE::die and CORE::warn, they will be monkey-patched into the CORE namespace before executing the javascript.

SOURCE REPOSITORY

http://github.com/jberger/Test-Mojo-Phantom

AUTHOR

Joel Berger, <joel.a.berger@gmail.com>

CONTRIBUTORS

Graham Ollis (plicease)

Sebastian Paaske Tørholm (Eckankar)

COPYRIGHT AND LICENSE

Copyright (C) 2015 by "AUTHOR" and "CONTRIBUTORS".

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.