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1 | package Test::WWW::Mechanize::Catalyst; |
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2 | |
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3 | use Moose; |
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4 | |
5 | use Carp qw/croak/; |
6 | require Catalyst::Test; # Do not call import |
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7 | use Encode qw(); |
8 | use HTML::Entities; |
9 | use Test::WWW::Mechanize; |
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10 | |
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11 | extends 'Test::WWW::Mechanize', 'Moose::Object'; |
12 | |
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13 | #use namespace::clean -execept => 'meta'; |
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14 | |
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15 | our $VERSION = '0.54'; |
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16 | our $APP_CLASS; |
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17 | my $Test = Test::Builder->new(); |
18 | |
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19 | has catalyst_app => ( |
20 | is => 'ro', |
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21 | predicate => 'has_catalyst_app', |
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22 | ); |
23 | |
24 | has allow_external => ( |
25 | is => 'rw', |
26 | isa => 'Bool', |
27 | default => 0 |
28 | ); |
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29 | |
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30 | has host => ( |
31 | is => 'rw', |
32 | isa => 'Str', |
33 | clearer => 'clear_host', |
34 | predicate => 'has_host', |
35 | ); |
36 | |
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37 | sub new { |
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38 | my $class = shift; |
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39 | |
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40 | my $args = ref $_[0] ? $_[0] : { @_ }; |
41 | |
42 | # Dont let LWP complain about options for our attributes |
43 | my %attr_options = map { |
44 | my $n = $_->init_arg; |
45 | defined $n && exists $args->{$n} |
46 | ? ( $n => delete $args->{$n} ) |
47 | : ( ); |
48 | } $class->meta->get_all_attributes; |
49 | |
50 | my $obj = $class->SUPER::new(%$args); |
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51 | my $self = $class->meta->new_object( |
52 | __INSTANCE__ => $obj, |
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53 | ($APP_CLASS ? (catalyst_app => $APP_CLASS) : () ), |
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54 | %attr_options |
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55 | ); |
56 | |
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57 | $self->BUILDALL; |
58 | |
59 | |
60 | return $self; |
61 | } |
62 | |
63 | sub BUILD { |
64 | my ($self) = @_; |
65 | |
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66 | unless ($ENV{CATALYST_SERVER}) { |
67 | croak "catalyst_app attribute is required unless CATALYST_SERVER env variable is set" |
68 | unless $self->has_catalyst_app; |
69 | Class::MOP::load_class($self->catalyst_app) |
70 | unless (Class::MOP::is_class_loaded($self->catalyst_app)); |
71 | } |
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72 | } |
73 | |
74 | sub _make_request { |
75 | my ( $self, $request ) = @_; |
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76 | |
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77 | my $response = $self->_do_catalyst_request($request); |
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78 | $response->header( 'Content-Base', $response->request->uri ) |
79 | unless $response->header('Content-Base'); |
80 | |
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81 | $self->cookie_jar->extract_cookies($response) if $self->cookie_jar; |
82 | |
83 | # fail tests under the Catalyst debug screen |
84 | if ( !$self->{catalyst_debug} |
85 | && $response->code == 500 |
86 | && $response->content =~ /on Catalyst \d+\.\d+/ ) |
87 | { |
88 | my ($error) |
89 | = ( $response->content =~ /<code class="error">(.*?)<\/code>/s ); |
90 | $error ||= "unknown error"; |
91 | decode_entities($error); |
92 | $Test->diag("Catalyst error screen: $error"); |
93 | $response->content(''); |
94 | $response->content_type(''); |
95 | } |
96 | |
97 | # check if that was a redirect |
98 | if ( $response->header('Location') |
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99 | && $response->is_redirect |
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100 | && $self->redirect_ok( $request, $response ) ) |
101 | { |
102 | |
103 | # remember the old response |
104 | my $old_response = $response; |
105 | |
106 | # *where* do they want us to redirect to? |
107 | my $location = $old_response->header('Location'); |
108 | |
109 | # no-one *should* be returning non-absolute URLs, but if they |
110 | # are then we'd better cope with it. Let's create a new URI, using |
111 | # our request as the base. |
112 | my $uri = URI->new_abs( $location, $request->uri )->as_string; |
113 | |
114 | # make a new response, and save the old response in it |
115 | $response = $self->_make_request( HTTP::Request->new( GET => $uri ) ); |
116 | my $end_of_chain = $response; |
117 | while ( $end_of_chain->previous ) # keep going till the end |
118 | { |
119 | $end_of_chain = $end_of_chain->previous; |
120 | } # of the chain... |
121 | $end_of_chain->previous($old_response); # ...and add us to it |
122 | } else { |
123 | $response->{_raw_content} = $response->content; |
124 | } |
125 | |
126 | return $response; |
127 | } |
128 | |
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129 | sub _do_catalyst_request { |
130 | my ($self, $request) = @_; |
131 | |
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132 | my $uri = $request->uri; |
133 | $uri->scheme('http') unless defined $uri->scheme; |
134 | $uri->host('localhost') unless defined $uri->host; |
135 | |
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136 | $request = $self->prepare_request($request); |
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137 | $self->cookie_jar->add_cookie_header($request) if $self->cookie_jar; |
138 | |
139 | # Woe betide anyone who unsets CATALYST_SERVER |
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140 | return $self->_do_remote_request($request) |
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141 | if $ENV{CATALYST_SERVER}; |
142 | |
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143 | # If there's no Host header, set one. |
144 | unless ($request->header('Host')) { |
145 | my $host = $self->has_host |
146 | ? $self->host |
147 | : $uri->host; |
148 | |
149 | $request->header('Host', $host); |
150 | } |
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151 | |
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152 | my $res = $self->_check_external_request($request); |
153 | return $res if $res; |
154 | |
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155 | my @creds = $self->get_basic_credentials( "Basic", $uri ); |
156 | $request->authorization_basic( @creds ) if @creds; |
157 | |
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158 | require Catalyst; |
159 | my $response = $Catalyst::VERSION >= 5.89000 ? |
160 | Catalyst::Test::_local_request($self->{catalyst_app}, $request) : |
161 | Catalyst::Test::local_request($self->{catalyst_app}, $request); |
162 | |
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163 | |
164 | # LWP would normally do this, but we dont get down that far. |
165 | $response->request($request); |
166 | |
167 | return $response |
168 | } |
169 | |
170 | sub _check_external_request { |
171 | my ($self, $request) = @_; |
172 | |
173 | # If there's no host then definatley not an external request. |
174 | $request->uri->can('host_port') or return; |
175 | |
176 | if ( $self->allow_external && $request->uri->host_port ne 'localhost:80' ) { |
177 | return $self->SUPER::_make_request($request); |
178 | } |
179 | return undef; |
180 | } |
181 | |
182 | sub _do_remote_request { |
183 | my ($self, $request) = @_; |
184 | |
185 | my $res = $self->_check_external_request($request); |
186 | return $res if $res; |
187 | |
188 | my $server = URI->new( $ENV{CATALYST_SERVER} ); |
189 | |
190 | if ( $server->path =~ m|^(.+)?/$| ) { |
191 | my $path = $1; |
192 | $server->path("$path") if $path; # need to be quoted |
193 | } |
194 | |
195 | # the request path needs to be sanitised if $server is using a |
196 | # non-root path due to potential overlap between request path and |
197 | # response path. |
198 | if ($server->path) { |
199 | # If request path is '/', we have to add a trailing slash to the |
200 | # final request URI |
201 | my $add_trailing = $request->uri->path eq '/'; |
202 | |
203 | my @sp = split '/', $server->path; |
204 | my @rp = split '/', $request->uri->path; |
205 | shift @sp;shift @rp; # leading / |
206 | if (@rp) { |
207 | foreach my $sp (@sp) { |
208 | $sp eq $rp[0] ? shift @rp : last |
209 | } |
210 | } |
211 | $request->uri->path(join '/', @rp); |
212 | |
213 | if ( $add_trailing ) { |
214 | $request->uri->path( $request->uri->path . '/' ); |
215 | } |
216 | } |
217 | |
218 | $request->uri->scheme( $server->scheme ); |
219 | $request->uri->host( $server->host ); |
220 | $request->uri->port( $server->port ); |
221 | $request->uri->path( $server->path . $request->uri->path ); |
222 | return $self->SUPER::_make_request($request); |
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223 | } |
224 | |
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225 | sub import { |
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226 | my ($class, $app) = @_; |
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227 | |
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228 | if (defined $app) { |
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229 | Class::MOP::load_class($app) |
230 | unless (Class::MOP::is_class_loaded($app)); |
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231 | $APP_CLASS = $app; |
232 | } |
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233 | |
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234 | } |
235 | |
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236 | |
237 | 1; |
238 | |
239 | __END__ |
240 | |
241 | =head1 NAME |
242 | |
243 | Test::WWW::Mechanize::Catalyst - Test::WWW::Mechanize for Catalyst |
244 | |
245 | =head1 SYNOPSIS |
246 | |
247 | # We're in a t/*.t test script... |
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248 | use Test::WWW::Mechanize::Catalyst; |
249 | |
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250 | # To test a Catalyst application named 'Catty': |
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251 | my $mech = Test::WWW::Mechanize::Catalyst->new(catalyst_app => 'Catty'); |
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252 | |
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253 | $mech->get_ok("/"); # no hostname needed |
254 | is($mech->ct, "text/html"); |
255 | $mech->title_is("Root", "On the root page"); |
256 | $mech->content_contains("This is the root page", "Correct content"); |
257 | $mech->follow_link_ok({text => 'Hello'}, "Click on Hello"); |
258 | # ... and all other Test::WWW::Mechanize methods |
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259 | |
260 | # White label site testing |
261 | $mech->host("foo.com"); |
262 | $mech->get_ok("/"); |
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263 | |
264 | =head1 DESCRIPTION |
265 | |
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266 | L<Catalyst> is an elegant MVC Web Application Framework. |
267 | L<Test::WWW::Mechanize> is a subclass of L<WWW::Mechanize> that incorporates |
268 | features for web application testing. The L<Test::WWW::Mechanize::Catalyst> |
269 | module meshes the two to allow easy testing of L<Catalyst> applications without |
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270 | needing to start up a web server. |
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271 | |
272 | Testing web applications has always been a bit tricky, normally |
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273 | requiring starting a web server for your application and making real HTTP |
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274 | requests to it. This module allows you to test L<Catalyst> web |
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275 | applications but does not require a server or issue HTTP |
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276 | requests. Instead, it passes the HTTP request object directly to |
277 | L<Catalyst>. Thus you do not need to use a real hostname: |
278 | "http://localhost/" will do. However, this is optional. The following |
279 | two lines of code do exactly the same thing: |
280 | |
281 | $mech->get_ok('/action'); |
282 | $mech->get_ok('http://localhost/action'); |
283 | |
284 | Links which do not begin with / or are not for localhost can be handled |
285 | as normal Web requests - this is handy if you have an external |
286 | single sign-on system. You must set allow_external to true for this: |
287 | |
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288 | $mech->allow_external(1); |
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289 | |
290 | You can also test a remote server by setting the environment variable |
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291 | CATALYST_SERVER; for example: |
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292 | |
293 | $ CATALYST_SERVER=http://example.com/myapp prove -l t |
294 | |
295 | will run the same tests on the application running at |
296 | http://example.com/myapp regardless of whether or not you specify |
297 | http:://localhost for Test::WWW::Mechanize::Catalyst. |
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298 | |
299 | Furthermore, if you set CATALYST_SERVER, the server will be regarded |
300 | as a remote server even if your links point to localhost. Thus, you |
301 | can use Test::WWW::Mechanize::Catalyst to test your live webserver |
302 | running on your local machine, if you need to test aspects of your |
303 | deployment environment (for example, configuration options in an |
304 | http.conf file) instead of just the Catalyst request handling. |
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305 | |
306 | This makes testing fast and easy. L<Test::WWW::Mechanize> provides |
307 | functions for common web testing scenarios. For example: |
308 | |
309 | $mech->get_ok( $page ); |
310 | $mech->title_is( "Invoice Status", "Make sure we're on the invoice page" ); |
311 | $mech->content_contains( "Andy Lester", "My name somewhere" ); |
312 | $mech->content_like( qr/(cpan|perl)\.org/, "Link to perl.org or CPAN" ); |
313 | |
314 | This module supports cookies automatically. |
315 | |
316 | To use this module you must pass it the name of the application. See |
317 | the SYNOPSIS above. |
318 | |
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319 | Note that Catalyst has a special development feature: the debug |
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320 | screen. By default this module will treat responses which are the |
321 | debug screen as failures. If you actually want to test debug screens, |
322 | please use: |
323 | |
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324 | $mech->{catalyst_debug} = 1; |
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325 | |
326 | An alternative to this module is L<Catalyst::Test>. |
327 | |
328 | =head1 CONSTRUCTOR |
329 | |
330 | =head2 new |
331 | |
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332 | Behaves like, and calls, L<WWW::Mechanize>'s C<new> method. Any params |
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333 | passed in get passed to WWW::Mechanize's constructor. Note that we |
334 | need to pass the name of the Catalyst application to the "use": |
335 | |
336 | use Test::WWW::Mechanize::Catalyst 'Catty'; |
337 | my $mech = Test::WWW::Mechanize::Catalyst->new; |
338 | |
339 | =head1 METHODS |
340 | |
341 | =head2 allow_external |
342 | |
343 | Links which do not begin with / or are not for localhost can be handled |
344 | as normal Web requests - this is handy if you have an external |
345 | single sign-on system. You must set allow_external to true for this: |
346 | |
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347 | $mech->allow_external(1); |
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348 | |
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349 | head2 catalyst_app |
350 | |
351 | The name of the Catalyst app which we are testing against. Read-only. |
352 | |
353 | =head2 host |
354 | |
355 | The host value to set the "Host:" HTTP header to, if none is present already in |
356 | the request. If not set (default) then Catalyst::Test will set this to |
357 | localhost:80 |
358 | |
359 | =head2 clear_host |
360 | |
361 | Unset the host attribute. |
362 | |
363 | =head2 has_host |
364 | |
365 | Do we have a value set for the host attribute |
366 | |
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367 | =head2 $mech->get_ok($url, [ \%LWP_options ,] $desc) |
368 | |
369 | A wrapper around WWW::Mechanize's get(), with similar options, except the |
370 | second argument needs to be a hash reference, not a hash. Returns true or |
371 | false. |
372 | |
373 | =head2 $mech->title_is( $str [, $desc ] ) |
374 | |
375 | Tells if the title of the page is the given string. |
376 | |
377 | $mech->title_is( "Invoice Summary" ); |
378 | |
379 | =head2 $mech->title_like( $regex [, $desc ] ) |
380 | |
381 | Tells if the title of the page matches the given regex. |
382 | |
383 | $mech->title_like( qr/Invoices for (.+)/ |
384 | |
385 | =head2 $mech->title_unlike( $regex [, $desc ] ) |
386 | |
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387 | Tells if the title of the page does NOT match the given regex. |
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388 | |
389 | $mech->title_unlike( qr/Invoices for (.+)/ |
390 | |
391 | =head2 $mech->content_is( $str [, $desc ] ) |
392 | |
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393 | Tells if the content of the page matches the given string. |
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394 | |
395 | =head2 $mech->content_contains( $str [, $desc ] ) |
396 | |
397 | Tells if the content of the page contains I<$str>. |
398 | |
399 | =head2 $mech->content_lacks( $str [, $desc ] ) |
400 | |
401 | Tells if the content of the page lacks I<$str>. |
402 | |
403 | =head2 $mech->content_like( $regex [, $desc ] ) |
404 | |
405 | Tells if the content of the page matches I<$regex>. |
406 | |
407 | =head2 $mech->content_unlike( $regex [, $desc ] ) |
408 | |
409 | Tells if the content of the page does NOT match I<$regex>. |
410 | |
411 | =head2 $mech->page_links_ok( [ $desc ] ) |
412 | |
413 | Follow all links on the current page and test for HTTP status 200 |
414 | |
415 | $mech->page_links_ok('Check all links'); |
416 | |
417 | =head2 $mech->page_links_content_like( $regex,[ $desc ] ) |
418 | |
419 | Follow all links on the current page and test their contents for I<$regex>. |
420 | |
421 | $mech->page_links_content_like( qr/foo/, |
422 | 'Check all links contain "foo"' ); |
423 | |
424 | =head2 $mech->page_links_content_unlike( $regex,[ $desc ] ) |
425 | |
426 | Follow all links on the current page and test their contents do not |
427 | contain the specified regex. |
428 | |
429 | $mech->page_links_content_unlike(qr/Restricted/, |
430 | 'Check all links do not contain Restricted'); |
431 | |
432 | =head2 $mech->links_ok( $links [, $desc ] ) |
433 | |
434 | Check the current page for specified links and test for HTTP status |
435 | 200. The links may be specified as a reference to an array containing |
436 | L<WWW::Mechanize::Link> objects, an array of URLs, or a scalar URL |
437 | name. |
438 | |
439 | my @links = $mech->find_all_links( url_regex => qr/cnn\.com$/ ); |
440 | $mech->links_ok( \@links, 'Check all links for cnn.com' ); |
441 | |
442 | my @links = qw( index.html search.html about.html ); |
443 | $mech->links_ok( \@links, 'Check main links' ); |
444 | |
445 | $mech->links_ok( 'index.html', 'Check link to index' ); |
446 | |
447 | =head2 $mech->link_status_is( $links, $status [, $desc ] ) |
448 | |
449 | Check the current page for specified links and test for HTTP status |
450 | passed. The links may be specified as a reference to an array |
451 | containing L<WWW::Mechanize::Link> objects, an array of URLs, or a |
452 | scalar URL name. |
453 | |
454 | my @links = $mech->links(); |
455 | $mech->link_status_is( \@links, 403, |
456 | 'Check all links are restricted' ); |
457 | |
458 | =head2 $mech->link_status_isnt( $links, $status [, $desc ] ) |
459 | |
460 | Check the current page for specified links and test for HTTP status |
461 | passed. The links may be specified as a reference to an array |
462 | containing L<WWW::Mechanize::Link> objects, an array of URLs, or a |
463 | scalar URL name. |
464 | |
465 | my @links = $mech->links(); |
466 | $mech->link_status_isnt( \@links, 404, |
467 | 'Check all links are not 404' ); |
468 | |
469 | =head2 $mech->link_content_like( $links, $regex [, $desc ] ) |
470 | |
471 | Check the current page for specified links and test the content of |
472 | each against I<$regex>. The links may be specified as a reference to |
473 | an array containing L<WWW::Mechanize::Link> objects, an array of URLs, |
474 | or a scalar URL name. |
475 | |
476 | my @links = $mech->links(); |
477 | $mech->link_content_like( \@links, qr/Restricted/, |
478 | 'Check all links are restricted' ); |
479 | |
480 | =head2 $mech->link_content_unlike( $links, $regex [, $desc ] ) |
481 | |
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482 | Check the current page for specified links and test that the content of each |
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483 | does not match I<$regex>. The links may be specified as a reference to |
484 | an array containing L<WWW::Mechanize::Link> objects, an array of URLs, |
485 | or a scalar URL name. |
486 | |
487 | my @links = $mech->links(); |
488 | $mech->link_content_like( \@links, qr/Restricted/, |
489 | 'Check all links are restricted' ); |
490 | |
491 | =head2 follow_link_ok( \%parms [, $comment] ) |
492 | |
493 | Makes a C<follow_link()> call and executes tests on the results. |
494 | The link must be found, and then followed successfully. Otherwise, |
495 | this test fails. |
496 | |
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497 | I<%parms> is a hashref containing the params to pass to C<follow_link()>. |
498 | Note that the params to C<follow_link()> are a hash whereas the parms to |
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499 | this function are a hashref. You have to call this function like: |
500 | |
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501 | $agent->follow_link_ok( {n=>3}, "looking for 3rd link" ); |
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502 | |
503 | As with other test functions, C<$comment> is optional. If it is supplied |
504 | then it will display when running the test harness in verbose mode. |
505 | |
506 | Returns true value if the specified link was found and followed |
507 | successfully. The HTTP::Response object returned by follow_link() |
508 | is not available. |
509 | |
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510 | =head1 CAVEATS |
511 | |
512 | =head2 External Redirects and allow_external |
513 | |
514 | If you use non-fully qualified urls in your test scripts (i.e. anything without |
515 | a host, such as C<< ->get_ok( "/foo") >> ) and your app redirects to an |
516 | external URL, expect to be bitten once you come back to your application's urls |
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517 | (it will try to request them on the remote server). This is due to a limitation |
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518 | in WWW::Mechanize. |
519 | |
520 | One workaround for this is that if you are expecting to redirect to an external |
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521 | site, clone the TWMC object and use the cloned object for the external |
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522 | redirect. |
523 | |
524 | |
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525 | =head1 SEE ALSO |
526 | |
527 | Related modules which may be of interest: L<Catalyst>, |
528 | L<Test::WWW::Mechanize>, L<WWW::Mechanize>. |
529 | |
530 | =head1 AUTHOR |
531 | |
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532 | Ash Berlin C<< <ash@cpan.org> >> (current maintiner) |
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533 | |
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534 | Original Author: Leon Brocard, C<< <acme@astray.com> >> |
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535 | |
536 | =head1 COPYRIGHT |
537 | |
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538 | Copyright (C) 2005-9, Leon Brocard |
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539 | |
540 | =head1 LICENSE |
541 | |
542 | This module is free software; you can redistribute it or modify it |
543 | under the same terms as Perl itself. |
544 | |