/usr/share/perl5/Test/WWW/Mechanize.pm is in libtest-www-mechanize-perl 1.42-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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use strict;
use warnings;
=head1 NAME
Test::WWW::Mechanize - Testing-specific WWW::Mechanize subclass
=head1 VERSION
Version 1.42
=cut
our $VERSION = '1.42';
=head1 SYNOPSIS
Test::WWW::Mechanize is a subclass of L<WWW::Mechanize> that incorporates
features for web application testing. For example:
use Test::More tests => 5;
use Test::WWW::Mechanize;
my $mech = Test::WWW::Mechanize->new;
$mech->get_ok( $page );
$mech->base_is( 'http://petdance.com/', 'Proper <BASE HREF>' );
$mech->title_is( 'Invoice Status', "Make sure we're on the invoice page" );
$mech->text_contains( 'Andy Lester', 'My name somewhere' );
$mech->content_like( qr/(cpan|perl)\.org/, 'Link to perl.org or CPAN' );
This is equivalent to:
use Test::More tests => 5;
use WWW::Mechanize;
my $mech = WWW::Mechanize->new;
$mech->get( $page );
ok( $mech->success );
is( $mech->base, 'http://petdance.com', 'Proper <BASE HREF>' );
is( $mech->title, 'Invoice Status', "Make sure we're on the invoice page" );
ok( index( $mech->content( format => 'text' ), 'Andy Lester' ) >= 0, 'My name somewhere' );
like( $mech->content, qr/(cpan|perl)\.org/, 'Link to perl.org or CPAN' );
but has nicer diagnostics if they fail.
Default descriptions will be supplied for most methods if you omit them. e.g.
my $mech = Test::WWW::Mechanize->new;
$mech->get_ok( 'http://petdance.com/' );
$mech->base_is( 'http://petdance.com/' );
$mech->title_is( 'Invoice Status' );
$mech->content_contains( 'Andy Lester' );
$mech->content_like( qr/(cpan|perl)\.org/ );
results in
ok - Got 'http://petdance.com/' ok
ok - Base is 'http://petdance.com/'
ok - Title is 'Invoice Status'
ok - Text contains 'Andy Lester'
ok - Content is like '(?-xism:(cpan|perl)\.org)'
=cut
use WWW::Mechanize ();
use Test::LongString;
use Test::Builder ();
use Carp ();
use Carp::Assert::More;
use base 'WWW::Mechanize';
my $TB = Test::Builder->new();
=head1 CONSTRUCTOR
=head2 new( %args )
Behaves like, and calls, L<WWW::Mechanize>'s C<new> method. Any parms
passed in get passed to WWW::Mechanize's constructor.
You can pass in C<< autolint => 1 >> to make Test::WWW::Mechanize
automatically run HTML::Lint after any of the following methods are
called. You can also pass in an HTML::Lint object like this:
my $lint = HTML::Lint->new( only_types => HTML::Lint::Error::STRUCTURE );
my $mech = Test::WWW::Mechanize->new( autolint => $lint );
=over
=item * get_ok()
=item * post_ok()
=item * submit_form_ok()
=item * follow_link_ok()
=item * click_ok()
=back
This means you no longer have to do the following:
my $mech = Test::WWW::Mechanize->new();
$mech->get_ok( $url, 'Fetch the intro page' );
$mech->html_lint_ok( 'Intro page looks OK' );
and can simply do
my $mech = Test::WWW::Mechanize->new( autolint => 1 );
$mech->get_ok( $url, 'Fetch the intro page' );
The C<< $mech->get_ok() >> only counts as one test in the test count. Both the
main IO operation and the linting must pass for the entire test to pass.
You can control autolint on the fly with the C<< autolint >> method.
=cut
sub new {
my $class = shift;
my %args = (
agent => "Test-WWW-Mechanize/$VERSION",
@_
);
my $autolint = delete $args{autolint};
my $self = $class->SUPER::new( %args );
$self->autolint( $autolint );
return $self;
}
=head1 METHODS: HTTP VERBS
=head2 $mech->get_ok($url, [ \%LWP_options ,] $desc)
A wrapper around WWW::Mechanize's get(), with similar options, except
the second argument needs to be a hash reference, not a hash. Like
well-behaved C<*_ok()> functions, it returns true if the test passed,
or false if not.
A default description of "GET $url" is used if none if provided.
=cut
sub get_ok {
my $self = shift;
my ($url,$desc,%opts) = $self->_unpack_args( 'GET', @_ );
$self->get( $url, %opts );
my $ok = $self->success;
$ok = $self->_maybe_lint( $ok, $desc );
return $ok;
}
sub _maybe_lint {
my $self = shift;
my $ok = shift;
my $desc = shift;
local $Test::Builder::Level = $Test::Builder::Level + 1;
if ( $ok ) {
if ( $self->is_html && $self->autolint ) {
$ok = $self->_lint_content_ok( $desc );
}
else {
$TB->ok( $ok, $desc );
}
}
else {
$TB->ok( $ok, $desc );
$TB->diag( $self->status );
$TB->diag( $self->response->message ) if $self->response;
}
return $ok;
}
=head2 $mech->head_ok($url, [ \%LWP_options ,] $desc)
A wrapper around WWW::Mechanize's head(), with similar options, except
the second argument needs to be a hash reference, not a hash. Like
well-behaved C<*_ok()> functions, it returns true if the test passed,
or false if not.
A default description of "HEAD $url" is used if none if provided.
=cut
sub head_ok {
my $self = shift;
my ($url,$desc,%opts) = $self->_unpack_args( 'HEAD', @_ );
$self->head( $url, %opts );
my $ok = $self->success;
$TB->ok( $ok, $desc );
if ( !$ok ) {
$TB->diag( $self->status );
$TB->diag( $self->response->message ) if $self->response;
}
return $ok;
}
=head2 $mech->post_ok( $url, [ \%LWP_options ,] $desc )
A wrapper around WWW::Mechanize's post(), with similar options, except
the second argument needs to be a hash reference, not a hash. Like
well-behaved C<*_ok()> functions, it returns true if the test passed,
or false if not.
A default description of "POST to $url" is used if none if provided.
=cut
sub post_ok {
my $self = shift;
my ($url,$desc,%opts) = $self->_unpack_args( 'POST', @_ );
$self->post( $url, \%opts );
my $ok = $self->success;
$ok = $self->_maybe_lint( $ok, $desc );
return $ok;
}
=head2 $mech->put_ok( $url, [ \%LWP_options ,] $desc )
A wrapper around WWW::Mechanize's put(), with similar options, except
the second argument needs to be a hash reference, not a hash. Like
well-behaved C<*_ok()> functions, it returns true if the test passed,
or false if not.
A default description of "PUT to $url" is used if none if provided.
=cut
sub put_ok {
my $self = shift;
my ($url,$desc,%opts) = $self->_unpack_args( 'PUT', @_ );
$opts{content} = '' if !exists $opts{content};
$self->put( $url, %opts );
my $ok = $self->success;
$TB->ok( $ok, $desc );
if ( !$ok ) {
$TB->diag( $self->status );
$TB->diag( $self->response->message ) if $self->response;
}
return $ok;
}
=head2 $mech->submit_form_ok( \%parms [, $desc] )
Makes a C<submit_form()> call and executes tests on the results.
The form must be found, and then submitted successfully. Otherwise,
this test fails.
I<%parms> is a hashref containing the parms to pass to C<submit_form()>.
Note that the parms to C<submit_form()> are a hash whereas the parms to
this function are a hashref. You have to call this function like:
$mech->submit_form_ok( {
form_number => 3,
fields => {
answer => 42
},
}, 'now we just need the question'
);
As with other test functions, C<$desc> is optional. If it is supplied
then it will display when running the test harness in verbose mode.
Returns true value if the specified link was found and followed
successfully. The L<HTTP::Response> object returned by submit_form()
is not available.
=cut
sub submit_form_ok {
my $self = shift;
my $parms = shift || {};
my $desc = shift;
if ( ref $parms ne 'HASH' ) {
Carp::croak 'FATAL: parameters must be given as a hashref';
}
# return from submit_form() is an HTTP::Response or undef
my $response = $self->submit_form( %{$parms} );
my $ok = $response && $response->is_success;
$ok = $self->_maybe_lint( $ok, $desc );
return $ok;
}
=head2 $mech->follow_link_ok( \%parms [, $desc] )
Makes a C<follow_link()> call and executes tests on the results.
The link must be found, and then followed successfully. Otherwise,
this test fails.
I<%parms> is a hashref containing the parms to pass to C<follow_link()>.
Note that the parms to C<follow_link()> are a hash whereas the parms to
this function are a hashref. You have to call this function like:
$mech->follow_link_ok( {n=>3}, 'looking for 3rd link' );
As with other test functions, C<$desc> is optional. If it is supplied
then it will display when running the test harness in verbose mode.
Returns a true value if the specified link was found and followed
successfully. The L<HTTP::Response> object returned by follow_link()
is not available.
=cut
sub follow_link_ok {
my $self = shift;
my $parms = shift || {};
my $desc = shift;
if (!defined($desc)) {
my $parms_str = join(', ', map { join('=', $_, $parms->{$_}) } keys(%{$parms}));
$desc = qq{Followed link with "$parms_str"} if !defined($desc);
}
if ( ref $parms ne 'HASH' ) {
Carp::croak 'FATAL: parameters must be given as a hashref';
}
# return from follow_link() is an HTTP::Response or undef
my $response = $self->follow_link( %{$parms} );
my $ok = $response && $response->is_success;
$ok = $self->_maybe_lint( $ok, $desc );
return $ok;
}
=head2 click_ok( $button[, $desc] )
Clicks the button named by C<$button>. An optional C<$desc> can
be given for the test.
=cut
sub click_ok {
my $self = shift;
my $button = shift;
my $desc = shift;
my $response = $self->click( $button );
if ( !$response ) {
return $TB->ok( 0, $desc );
}
my $ok = $response->is_success;
$ok = $self->_maybe_lint( $ok, $desc );
return $ok;
}
sub _unpack_args {
my $self = shift;
my $method = shift;
my $url = shift;
my $desc;
my %opts;
if ( @_ ) {
my $flex = shift; # The flexible argument
if ( !defined( $flex ) ) {
$desc = shift;
}
elsif ( ref $flex eq 'HASH' ) {
%opts = %{$flex};
$desc = shift;
}
elsif ( ref $flex eq 'ARRAY' ) {
%opts = @{$flex};
$desc = shift;
}
else {
$desc = $flex;
}
} # parms left
if ( not defined $desc ) {
$url = $url->url if ref($url) eq 'WWW::Mechanize::Link';
$desc = "$method $url";
}
return ($url, $desc, %opts);
}
=head1 METHODS: CONTENT CHECKING
=head2 $mech->html_lint_ok( [$desc] )
Checks the validity of the HTML on the current page. If the page is not
HTML, then it fails. The URI is automatically appended to the I<$desc>.
Note that HTML::Lint must be installed for this to work. Otherwise,
it will blow up.
=cut
sub html_lint_ok {
my $self = shift;
my $desc = shift;
my $uri = $self->uri;
$desc = $desc ? "$desc ($uri)" : $uri;
my $ok;
if ( $self->is_html ) {
$ok = $self->_lint_content_ok( $desc );
}
else {
$ok = $TB->ok( 0, $desc );
$TB->diag( q{This page doesn't appear to be HTML, or didn't get the proper text/html content type returned.} );
}
return $ok;
}
sub _lint_content_ok {
my $self = shift;
my $desc = shift;
local $Test::Builder::Level = $Test::Builder::Level + 1;
my $module = "HTML::Lint 2.20";
if ( not ( eval "use $module; 1;" ) ) {
die "Test::WWW::Mechanize can't do linting without $module: $@";
}
my $lint = $self->{autolint};
if ( ref $lint && $lint->isa('HTML::Lint') ) {
$lint->newfile;
$lint->clear_errors;
}
else {
$lint = HTML::Lint->new();
}
$lint->parse( $self->content );
my @errors = $lint->errors;
my $nerrors = @errors;
my $ok;
if ( $nerrors ) {
$ok = $TB->ok( 0, $desc );
$TB->diag( 'HTML::Lint errors for ' . $self->uri );
$TB->diag( $_->as_string ) for @errors;
my $s = $nerrors == 1 ? '' : 's';
$TB->diag( "$nerrors error$s on the page" );
}
else {
$ok = $TB->ok( 1, $desc );
}
return $ok;
}
=head2 $mech->title_is( $str [, $desc ] )
Tells if the title of the page is the given string.
$mech->title_is( 'Invoice Summary' );
=cut
sub title_is {
my $self = shift;
my $str = shift;
my $desc = shift;
$desc = qq{Title is "$str"} if !defined($desc);
local $Test::Builder::Level = $Test::Builder::Level + 1;
return is_string( $self->title, $str, $desc );
}
=head2 $mech->title_like( $regex [, $desc ] )
Tells if the title of the page matches the given regex.
$mech->title_like( qr/Invoices for (.+)/
=cut
sub title_like {
my $self = shift;
my $regex = shift;
my $desc = shift;
$desc = qq{Title is like "$regex"} if !defined($desc);
local $Test::Builder::Level = $Test::Builder::Level + 1;
return like_string( $self->title, $regex, $desc );
}
=head2 $mech->title_unlike( $regex [, $desc ] )
Tells if the title of the page matches the given regex.
$mech->title_unlike( qr/Invoices for (.+)/
=cut
sub title_unlike {
my $self = shift;
my $regex = shift;
my $desc = shift;
$desc = qq{Title is unlike "$regex"} if !defined($desc);
local $Test::Builder::Level = $Test::Builder::Level + 1;
return unlike_string( $self->title, $regex, $desc );
}
=head2 $mech->base_is( $str [, $desc ] )
Tells if the base of the page is the given string.
$mech->base_is( 'http://example.com/' );
=cut
sub base_is {
my $self = shift;
my $str = shift;
my $desc = shift;
$desc = qq{Base is "$str"} if !defined($desc);
local $Test::Builder::Level = $Test::Builder::Level + 1;
return is_string( $self->base, $str, $desc );
}
=head2 $mech->base_like( $regex [, $desc ] )
Tells if the base of the page matches the given regex.
$mech->base_like( qr{http://example.com/index.php?PHPSESSID=(.+)});
=cut
sub base_like {
my $self = shift;
my $regex = shift;
my $desc = shift;
$desc = qq{Base is like "$regex"} if !defined($desc);
local $Test::Builder::Level = $Test::Builder::Level + 1;
return like_string( $self->base, $regex, $desc );
}
=head2 $mech->base_unlike( $regex [, $desc ] )
Tells if the base of the page matches the given regex.
$mech->base_unlike( qr{http://example.com/index.php?PHPSESSID=(.+)});
=cut
sub base_unlike {
my $self = shift;
my $regex = shift;
my $desc = shift;
$desc = qq{Base is unlike "$regex"} if !defined($desc);
local $Test::Builder::Level = $Test::Builder::Level + 1;
return unlike_string( $self->base, $regex, $desc );
}
=head2 $mech->content_is( $str [, $desc ] )
Tells if the content of the page matches the given string
=cut
sub content_is {
my $self = shift;
my $str = shift;
my $desc = shift;
local $Test::Builder::Level = $Test::Builder::Level + 1;
$desc = qq{Content is "$str"} if !defined($desc);
return is_string( $self->content, $str, $desc );
}
=head2 $mech->content_contains( $str [, $desc ] )
Tells if the content of the page contains I<$str>.
=cut
sub content_contains {
my $self = shift;
my $str = shift;
my $desc = shift;
local $Test::Builder::Level = $Test::Builder::Level + 1;
if ( ref($str) ) {
return $TB->ok( 0, 'Test::WWW::Mechanize->content_contains called incorrectly. It requires a scalar, not a reference.' );
}
$desc = qq{Content contains "$str"} if !defined($desc);
return contains_string( $self->content, $str, $desc );
}
=head2 $mech->content_lacks( $str [, $desc ] )
Tells if the content of the page lacks I<$str>.
=cut
sub content_lacks {
my $self = shift;
my $str = shift;
my $desc = shift;
local $Test::Builder::Level = $Test::Builder::Level + 1;
if ( ref($str) ) {
return $TB->ok( 0, 'Test::WWW::Mechanize->content_lacks called incorrectly. It requires a scalar, not a reference.' );
}
$desc = qq{Content lacks "$str"} if !defined($desc);
return lacks_string( $self->content, $str, $desc );
}
=head2 $mech->content_like( $regex [, $desc ] )
Tells if the content of the page matches I<$regex>.
=cut
sub content_like {
my $self = shift;
my $regex = shift;
my $desc = shift;
$desc = qq{Content is like "$regex"} if !defined($desc);
local $Test::Builder::Level = $Test::Builder::Level + 1;
return like_string( $self->content, $regex, $desc );
}
=head2 $mech->content_unlike( $regex [, $desc ] )
Tells if the content of the page does NOT match I<$regex>.
=cut
sub content_unlike {
my $self = shift;
my $regex = shift;
my $desc = shift || qq{Content is unlike "$regex"};
local $Test::Builder::Level = $Test::Builder::Level + 1;
return unlike_string( $self->content, $regex, $desc );
}
=head2 $mech->text_contains( $str [, $desc ] )
Tells if the text form of the page's content contains I<$str>.
When your page contains HTML which is difficult, unimportant, or
unlikely to match over time as designers alter markup, use
C<text_contains> instead of L</content_contains>.
# <b>Hi, <i><a href="some/path">User</a></i>!</b>
$mech->content_contains('Hi, User'); # Fails.
$mech->text_contains('Hi, User'); # Passes.
Text is determined by calling C<< $mech->text() >>.
See L<WWW::Mechanize/content>.
=cut
sub text_contains {
my $self = shift;
my $str = shift;
my $desc = shift || qq{Text contains "$str"};
local $Test::Builder::Level = $Test::Builder::Level + 1;
if ( ref($str) ) {
return $TB->ok( 0, 'Test::WWW::Mechanize->text_contains called incorrectly. It requires a scalar, not a reference.' );
}
return contains_string( $self->text, $str, $desc );
}
=head2 $mech->text_lacks( $str [, $desc ] )
Tells if the text of the page lacks I<$str>.
=cut
sub text_lacks {
my $self = shift;
my $str = shift;
my $desc = shift;
local $Test::Builder::Level = $Test::Builder::Level + 1;
if ( ref($str) ) {
return $TB->ok( 0, 'Test::WWW::Mechanize->text_lacks called incorrectly. It requires a scalar, not a reference.' );
}
$desc = qq{Text lacks "$str"} if !defined($desc);
return lacks_string( $self->text, $str, $desc );
}
=head2 $mech->text_like( $regex [, $desc ] )
Tells if the text form of the page's content matches I<$regex>.
=cut
sub text_like {
my $self = shift;
my $regex = shift;
my $desc = shift || qq{Text is like "$regex"};
local $Test::Builder::Level = $Test::Builder::Level + 1;
return like_string( $self->text, $regex, $desc );
}
=head2 $mech->text_unlike( $regex [, $desc ] )
Tells if the text format of the page's content does NOT match I<$regex>.
=cut
sub text_unlike {
my $self = shift;
my $regex = shift;
my $desc = shift || qq{Text is unlike "$regex"};
local $Test::Builder::Level = $Test::Builder::Level + 1;
return unlike_string( $self->text, $regex, $desc );
}
=head2 $mech->has_tag( $tag, $text [, $desc ] )
Tells if the page has a C<$tag> tag with the given content in its text.
=cut
sub has_tag {
my $self = shift;
my $tag = shift;
my $text = shift;
my $desc = shift || qq{Page has $tag tag with "$text"};
my $found = $self->_tag_walk( $tag, sub { $text eq $_[0] } );
return $TB->ok( $found, $desc );
}
=head2 $mech->has_tag_like( $tag, $regex [, $desc ] )
Tells if the page has a C<$tag> tag with the given content in its text.
=cut
sub has_tag_like {
my $self = shift;
my $tag = shift;
my $regex = shift;
my $desc = shift;
$desc = qq{Page has $tag tag like "$regex"} if !defined($desc);
my $found = $self->_tag_walk( $tag, sub { $_[0] =~ $regex } );
return $TB->ok( $found, $desc );
}
sub _tag_walk {
my $self = shift;
my $tag = shift;
my $match = shift;
my $p = HTML::TokeParser->new( \($self->content) );
while ( my $token = $p->get_tag( $tag ) ) {
my $tagtext = $p->get_trimmed_text();
return 1 if $match->( $tagtext );
}
return;
}
=head2 $mech->followable_links()
Returns a list of links that Mech can follow. This is only http and
https links.
=cut
sub followable_links {
my $self = shift;
return $self->find_all_links( url_abs_regex => qr{^(?:https?|file)://} );
}
=head2 $mech->page_links_ok( [ $desc ] )
Follow all links on the current page and test for HTTP status 200
$mech->page_links_ok('Check all links');
=cut
sub page_links_ok {
my $self = shift;
my $desc = shift;
$desc = 'All links ok' unless defined $desc;
my @links = $self->followable_links();
my @urls = _format_links(\@links);
my @failures = $self->_check_links_status( \@urls );
my $ok = (@failures==0);
$TB->ok( $ok, $desc );
$TB->diag( $_ ) for @failures;
return $ok;
}
=head2 $mech->page_links_content_like( $regex [, $desc ] )
Follow all links on the current page and test their contents for I<$regex>.
$mech->page_links_content_like( qr/foo/,
'Check all links contain "foo"' );
=cut
sub page_links_content_like {
my $self = shift;
my $regex = shift;
my $desc = shift;
$desc = qq{All links are like "$regex"} unless defined $desc;
my $usable_regex=$TB->maybe_regex( $regex );
if ( !defined( $usable_regex ) ) {
my $ok = $TB->ok( 0, 'page_links_content_like' );
$TB->diag(qq{ "$regex" doesn't look much like a regex to me.});
return $ok;
}
my @links = $self->followable_links();
my @urls = _format_links(\@links);
my @failures = $self->_check_links_content( \@urls, $regex );
my $ok = (@failures==0);
$TB->ok( $ok, $desc );
$TB->diag( $_ ) for @failures;
return $ok;
}
=head2 $mech->page_links_content_unlike( $regex [, $desc ] )
Follow all links on the current page and test their contents do not
contain the specified regex.
$mech->page_links_content_unlike(qr/Restricted/,
'Check all links do not contain Restricted');
=cut
sub page_links_content_unlike {
my $self = shift;
my $regex = shift;
my $desc = shift;
$desc = qq{All links are unlike "$regex"} unless defined($desc);
my $usable_regex=$TB->maybe_regex( $regex );
if ( !defined( $usable_regex ) ) {
my $ok = $TB->ok( 0, 'page_links_content_unlike' );
$TB->diag(qq{ "$regex" doesn't look much like a regex to me.});
return $ok;
}
my @links = $self->followable_links();
my @urls = _format_links(\@links);
my @failures = $self->_check_links_content( \@urls, $regex, 'unlike' );
my $ok = (@failures==0);
$TB->ok( $ok, $desc );
$TB->diag( $_ ) for @failures;
return $ok;
}
=head2 $mech->links_ok( $links [, $desc ] )
Follow specified links on the current page and test for HTTP status
200. The links may be specified as a reference to an array containing
L<WWW::Mechanize::Link> objects, an array of URLs, or a scalar URL
name.
my @links = $mech->find_all_links( url_regex => qr/cnn\.com$/ );
$mech->links_ok( \@links, 'Check all links for cnn.com' );
my @links = qw( index.html search.html about.html );
$mech->links_ok( \@links, 'Check main links' );
$mech->links_ok( 'index.html', 'Check link to index' );
=cut
sub links_ok {
my $self = shift;
my $links = shift;
my $desc = shift;
my @urls = _format_links( $links );
$desc = _default_links_desc(\@urls, 'are ok') unless defined $desc;
my @failures = $self->_check_links_status( \@urls );
my $ok = (@failures == 0);
$TB->ok( $ok, $desc );
$TB->diag( $_ ) for @failures;
return $ok;
}
=head2 $mech->link_status_is( $links, $status [, $desc ] )
Follow specified links on the current page and test for HTTP status
passed. The links may be specified as a reference to an array
containing L<WWW::Mechanize::Link> objects, an array of URLs, or a
scalar URL name.
my @links = $mech->followable_links();
$mech->link_status_is( \@links, 403,
'Check all links are restricted' );
=cut
sub link_status_is {
my $self = shift;
my $links = shift;
my $status = shift;
my $desc = shift;
my @urls = _format_links( $links );
$desc = _default_links_desc(\@urls, "have status $status") if !defined($desc);
my @failures = $self->_check_links_status( \@urls, $status );
my $ok = (@failures == 0);
$TB->ok( $ok, $desc );
$TB->diag( $_ ) for @failures;
return $ok;
}
=head2 $mech->link_status_isnt( $links, $status [, $desc ] )
Follow specified links on the current page and test for HTTP status
passed. The links may be specified as a reference to an array
containing L<WWW::Mechanize::Link> objects, an array of URLs, or a
scalar URL name.
my @links = $mech->followable_links();
$mech->link_status_isnt( \@links, 404,
'Check all links are not 404' );
=cut
sub link_status_isnt {
my $self = shift;
my $links = shift;
my $status = shift;
my $desc = shift;
my @urls = _format_links( $links );
$desc = _default_links_desc(\@urls, "do not have status $status") if !defined($desc);
my @failures = $self->_check_links_status( \@urls, $status, 'isnt' );
my $ok = (@failures == 0);
$TB->ok( $ok, $desc );
$TB->diag( $_ ) for @failures;
return $ok;
}
=head2 $mech->link_content_like( $links, $regex [, $desc ] )
Follow specified links on the current page and test the resulting
content of each against I<$regex>. The links may be specified as a
reference to an array containing L<WWW::Mechanize::Link> objects, an
array of URLs, or a scalar URL name.
my @links = $mech->followable_links();
$mech->link_content_like( \@links, qr/Restricted/,
'Check all links are restricted' );
=cut
sub link_content_like {
my $self = shift;
my $links = shift;
my $regex = shift;
my $desc = shift;
my $usable_regex=$TB->maybe_regex( $regex );
if ( !defined( $usable_regex ) ) {
my $ok = $TB->ok( 0, 'link_content_like' );
$TB->diag(qq{ "$regex" doesn't look much like a regex to me.});
return $ok;
}
my @urls = _format_links( $links );
$desc = _default_links_desc( \@urls, qq{are like "$regex"} ) if !defined($desc);
my @failures = $self->_check_links_content( \@urls, $regex );
my $ok = (@failures == 0);
$TB->ok( $ok, $desc );
$TB->diag( $_ ) for @failures;
return $ok;
}
=head2 $mech->link_content_unlike( $links, $regex [, $desc ] )
Follow specified links on the current page and test that the resulting
content of each does not match I<$regex>. The links may be specified as a
reference to an array containing L<WWW::Mechanize::Link> objects, an array
of URLs, or a scalar URL name.
my @links = $mech->followable_links();
$mech->link_content_unlike( \@links, qr/Restricted/,
'No restricted links' );
=cut
sub link_content_unlike {
my $self = shift;
my $links = shift;
my $regex = shift;
my $desc = shift;
my $usable_regex=$TB->maybe_regex( $regex );
if ( !defined( $usable_regex ) ) {
my $ok = $TB->ok( 0, 'link_content_unlike' );
$TB->diag(qq{ "$regex" doesn't look much like a regex to me.});
return $ok;
}
my @urls = _format_links( $links );
$desc = _default_links_desc( \@urls, qq{are not like "$regex"} ) if !defined($desc);
my @failures = $self->_check_links_content( \@urls, $regex, 'unlike' );
my $ok = (@failures == 0);
$TB->ok( $ok, $desc );
$TB->diag( $_ ) for @failures;
return $ok;
}
# Create a default description for the link_* methods, including the link count.
sub _default_links_desc {
my ($urls, $desc_suffix) = @_;
my $url_count = scalar(@{$urls});
return sprintf( '%d link%s %s', $url_count, $url_count == 1 ? '' : 's', $desc_suffix );
}
# This actually performs the status check of each url.
sub _check_links_status {
my $self = shift;
my $urls = shift;
my $status = shift || 200;
my $test = shift || 'is';
# Create a clone of the $mech used during the test as to not disrupt
# the original.
my $mech = $self->clone();
my @failures;
for my $url ( @{$urls} ) {
if ( $mech->follow_link( url => $url ) ) {
if ( $test eq 'is' ) {
push( @failures, $url ) unless $mech->status() == $status;
}
else {
push( @failures, $url ) if $mech->status() == $status;
}
$mech->back();
}
else {
push( @failures, $url );
}
} # for
return @failures;
}
# This actually performs the content check of each url.
sub _check_links_content {
my $self = shift;
my $urls = shift;
my $regex = shift || qr/<html>/;
my $test = shift || 'like';
# Create a clone of the $mech used during the test as to not disrupt
# the original.
my $mech = $self->clone();
my @failures;
for my $url ( @{$urls} ) {
if ( $mech->follow_link( url => $url ) ) {
my $content=$mech->content();
if ( $test eq 'like' ) {
push( @failures, $url ) unless $content =~ /$regex/;
}
else {
push( @failures, $url ) if $content =~ /$regex/;
}
$mech->back();
}
else {
push( @failures, $url );
}
} # for
return @failures;
}
# Create an array of urls to match for mech to follow.
sub _format_links {
my $links = shift;
my @urls;
if (ref($links) eq 'ARRAY') {
my $link = $links->[0];
if ( defined($link) ) {
if ( ref($link) eq 'WWW::Mechanize::Link' ) {
@urls = map { $_->url() } @{$links};
}
else {
@urls = @{$links};
}
}
}
else {
push(@urls,$links);
}
return @urls;
}
=head2 $mech->stuff_inputs( [\%options] )
Finds all free-text input fields (text, textarea, and password) in the
current form and fills them to their maximum length in hopes of finding
application code that can't handle it. Fields with no maximum length
and all textarea fields are set to 66000 bytes, which will often be
enough to overflow the data's eventual recepticle.
There is no return value.
If there is no current form then nothing is done.
The hashref $options can contain the following keys:
=over
=item * ignore
hash value is arrayref of field names to not touch, e.g.:
$mech->stuff_inputs( {
ignore => [qw( specialfield1 specialfield2 )],
} );
=item * fill
hash value is default string to use when stuffing fields. Copies
of the string are repeated up to the max length of each field. E.g.:
$mech->stuff_inputs( {
fill => '@' # stuff all fields with something easy to recognize
} );
=item * specs
hash value is arrayref of hashrefs with which you can pass detailed
instructions about how to stuff a given field. E.g.:
$mech->stuff_inputs( {
specs=>{
# Some fields are datatype-constrained. It's most common to
# want the field stuffed with valid data.
widget_quantity => { fill=>'9' },
notes => { maxlength=>2000 },
}
} );
The specs allowed are I<fill> (use this fill for the field rather than
the default) and I<maxlength> (use this as the field's maxlength instead
of any maxlength specified in the HTML).
=back
=cut
sub stuff_inputs {
my $self = shift;
my $options = shift || {};
assert_isa( $options, 'HASH' );
assert_in( $_, ['ignore', 'fill', 'specs'] ) foreach ( keys %{$options} );
# set up the fill we'll use unless a field overrides it
my $default_fill = '@';
if ( exists $options->{fill} && defined $options->{fill} && length($options->{fill}) > 0 ) {
$default_fill = $options->{fill};
}
# fields in the form to not stuff
my $ignore = {};
if ( exists $options->{ignore} ) {
assert_isa( $options->{ignore}, 'ARRAY' );
$ignore = { map {($_, 1)} @{$options->{ignore}} };
}
my $specs = {};
if ( exists $options->{specs} ) {
assert_isa( $options->{specs}, 'HASH' );
$specs = $options->{specs};
foreach my $field_name ( keys %{$specs} ) {
assert_isa( $specs->{$field_name}, 'HASH' );
assert_in( $_, ['fill', 'maxlength'] ) foreach ( keys %{$specs->{$field_name}} );
}
}
my @inputs = $self->find_all_inputs( type_regex => qr/^(text|textarea|password)$/ );
foreach my $field ( @inputs ) {
next if $field->readonly();
next if $field->disabled(); # TODO: HTML::Form::TextInput allows setting disabled--allow it here?
my $name = $field->name();
# skip if it's one of the fields to ignore
next if exists $ignore->{ $name };
# fields with no maxlength will get this many characters
my $maxlength = 66000;
# maxlength from the HTML
if ( $field->type ne 'textarea' ) {
if ( exists $field->{maxlength} ) {
$maxlength = $field->{maxlength};
# TODO: what to do about maxlength==0 ? non-numeric? less than 0 ?
}
}
my $fill = $default_fill;
if ( exists $specs->{$name} ) {
# process the per-field info
if ( exists $specs->{$name}->{fill} && defined $specs->{$name}->{fill} && length($specs->{$name}->{fill}) > 0 ) {
$fill = $specs->{$name}->{fill};
}
# maxlength override from specs
if ( exists $specs->{$name}->{maxlength} && defined $specs->{$name}->{maxlength} ) {
$maxlength = $specs->{$name}->{maxlength};
# TODO: what to do about maxlength==0 ? non-numeric? less than 0?
}
}
# stuff it
if ( ($maxlength % length($fill)) == 0 ) {
# the simple case
$field->value( $fill x ($maxlength/length($fill)) );
}
else {
# can be improved later
$field->value( substr( $fill x int(($maxlength + length($fill) - 1)/length($fill)), 0, $maxlength ) );
}
} # for @inputs
return;
}
=head2 $mech->lacks_uncapped_inputs( [$comment] )
Executes a test to make sure that the current form content has no
text input fields that lack the C<maxlength> attribute, and that each
C<maxlength> value is a positive integer. The test fails if the current
form has such a field, and succeeds otherwise.
Returns an array containing all text input fields in the current
form that do not specify a maximum input length. Fields for which
the concept of input length is irrelevant, and controls that HTML
does not allow to be capped (e.g. textarea) are ignored.
The inputs in the returned array are descended from HTML::Form::Input.
The return is true if the test succeeded, false otherwise.
=cut
sub lacks_uncapped_inputs {
my $self = shift;
my $comment = shift;
local $Test::Builder::Level = $Test::Builder::Level + 1;
my @uncapped;
my @inputs = $self->grep_inputs( { type => qr/^(?:text|password)$/ } );
foreach my $field ( @inputs ) {
next if $field->readonly();
next if $field->disabled();
if ( not defined($field->{maxlength}) ) {
push( @uncapped, $field->name . ' has no maxlength attribute' );
next;
}
my $val = $field->{maxlength};
if ( ($val !~ /^\s*\d+\s*$/) || ($val+0 <= 0) ) {
push( @uncapped, $field->name . qq{ has an invalid maxlength attribute of "$val"} );
}
}
my $ok = $TB->cmp_ok( scalar @uncapped, '==', 0, $comment );
$TB->diag( $_ ) for @uncapped;
return $ok;
}
=head1 METHODS: MISCELLANEOUS
=head2 $mech->autolint( [$status] )
Without an argument, this method returns a true or false value indicating
whether autolint is active.
When passed an argument, autolint is turned on or off depending on whether
the argument is true or false, and the previous autolint status is returned.
As with the autolint option of C<< new >>, C<< $status >> can be an
L<< HTML::Lint >> object.
If autolint is currently using an L<< HTML::Lint >> object you provided,
the return is that object, so you can change and exactly restore
autolint status:
my $old_status = $mech->autolint( 0 );
... operations that should not be linted ...
$mech->autolint( $old_status );
=cut
sub autolint {
my $self = shift;
my $ret = $self->{autolint};
if ( @_ ) {
$self->{autolint} = shift;
}
return $ret;
}
=head2 $mech->grep_inputs( \%properties )
grep_inputs() returns an array of all the input controls in the
current form whose properties match all of the regexes in $properties.
The controls returned are all descended from HTML::Form::Input.
If $properties is undef or empty then all inputs will be
returned.
If there is no current page, there is no form on the current
page, or there are no submit controls in the current form
then the return will be an empty array.
# get all text controls whose names begin with "customer"
my @customer_text_inputs =
$mech->grep_inputs( {
type => qr/^(text|textarea)$/,
name => qr/^customer/
}
);
=cut
sub grep_inputs {
my $self = shift;
my $properties = shift;
my @found;
my $form = $self->current_form();
if ( $form ) {
my @inputs = $form->inputs();
@found = _grep_hashes( \@inputs, $properties );
}
return @found;
}
=head2 $mech->grep_submits( \%properties )
grep_submits() does the same thing as grep_inputs() except that
it only returns controls that are submit controls, ignoring
other types of input controls like text and checkboxes.
=cut
sub grep_submits {
my $self = shift;
my $properties = shift || {};
$properties->{type} = qr/^(?:submit|image)$/; # submits only
my @found = $self->grep_inputs( $properties );
return @found;
}
# search an array of hashrefs, returning an array of the incoming
# hashrefs that match *all* the pattern in $patterns.
sub _grep_hashes {
my $hashes = shift;
my $patterns = shift || {};
my @found;
if ( ! %{$patterns} ) {
# nothing to match on, so return them all
@found = @{$hashes};
}
else {
foreach my $hash ( @{$hashes} ) {
# check every pattern for a match on the current hash
my $matches_everything = 1;
foreach my $pattern_key ( keys %{$patterns} ) {
$matches_everything = 0 unless exists $hash->{$pattern_key} && $hash->{$pattern_key} =~ $patterns->{$pattern_key};
last if !$matches_everything;
}
push @found, $hash if $matches_everything;
}
}
return @found;
}
=head2 $mech->scrape_text_by_attr( $attr, $attr_value [, $html ] )
=head2 $mech->scrape_text_by_attr( $attr, $attr_regex [, $html ] )
Returns an array of strings, each string the text surrounded by an
element with attribute I<$attr> of value I<$value>. You can also pass in
a regular expression. If nothing is found the return is an empty list.
In scalar context the return is the first string found.
If passed, I<$html> is scraped instead of the current page's content.
=cut
sub scrape_text_by_attr {
my $self = shift;
my $attr = shift;
my $value = shift;
my $html = $self->_get_optional_html( @_ );
my @results;
if ( defined $html ) {
my $parser = HTML::TokeParser->new(\$html);
while ( my $token = $parser->get_tag() ) {
if ( ref $token->[1] eq 'HASH' ) {
if ( exists $token->[1]->{$attr} ) {
my $matched =
(ref $value eq 'Regexp')
? $token->[1]->{$attr} =~ $value
: $token->[1]->{$attr} eq $value;
if ( $matched ) {
my $tag = $token->[ 0 ];
push @results, $parser->get_trimmed_text( "/$tag" );
if ( !wantarray ) {
last;
}
}
}
}
}
}
return $results[0] if !wantarray;
return @results;
}
=head2 scrape_text_by_id( $id [, $html ] )
Finds all elements with the given id attribute and pulls out the text that that element encloses.
In list context, returns a list of all strings found. In scalar context, returns the first one found.
If C<$html> is not provided then the current content is used.
=cut
sub scrape_text_by_id {
my $self = shift;
my $id = shift;
my $html = $self->_get_optional_html( @_ );
my @results;
if ( defined $html ) {
my $found = index( $html, "id=\"$id\"" );
if ( $found >= 0 ) {
my $parser = HTML::TokeParser->new( \$html );
while ( my $token = $parser->get_tag() ) {
if ( ref $token->[1] eq 'HASH' ) {
my $actual_id = $token->[1]->{id};
$actual_id = '' unless defined $actual_id;
if ( $actual_id eq $id ) {
my $tag = $token->[ 0 ];
push @results, $parser->get_trimmed_text( "/$tag" );
if ( !wantarray ) {
last;
}
}
}
}
}
}
return $results[0] if !wantarray;
return @results;
}
sub _get_optional_html {
my $self = shift;
my $html;
if ( @_ ) {
$html = shift;
assert_nonblank( $html, '$html passed in is a populated scalar' );
}
else {
if ( $self->is_html ) {
$html = $self->content();
}
}
return $html;
}
=head2 $mech->scraped_id_is( $id, $expected [, $msg] )
Scrapes the current page for given ID and tests that it matches the expected value.
=cut
sub scraped_id_is {
my $self = shift;
my $id = shift;
my $expected = shift;
my $msg = shift;
if ( not defined $msg ) {
my $what = defined( $expected ) ? $expected : '(undef)';
$msg = qq{scraped id "$id" is "$what"};
}
local $Test::Builder::Level = $Test::Builder::Level + 1;
my $got = $self->scrape_text_by_id($id);
is( $got, $expected, $msg );
return;
}
=head1 TODO
Add HTML::Tidy capabilities.
Other ideas for features are at https://github.com/petdance/test-www-mechanize
=head1 AUTHOR
Andy Lester, C<< <andy at petdance.com> >>
=head1 BUGS
Please report any bugs or feature requests to
<https://github.com/petdance/test-www-mechanize>.
=head1 SUPPORT
You can find documentation for this module with the perldoc command.
perldoc Test::WWW::Mechanize
You can also look for information at:
=over 4
=item * Bug tracker
L<https://github.com/petdance/test-www-mechanize>
=item * AnnoCPAN: Annotated CPAN documentation
L<http://annocpan.org/dist/Test-WWW-Mechanize>
=item * CPAN Ratings
L<http://cpanratings.perl.org/d/Test-WWW-Mechanize>
=item * Search CPAN
L<http://search.cpan.org/dist/Test-WWW-Mechanize>
=back
=head1 ACKNOWLEDGEMENTS
Thanks to
Jonathan "Duke" Leto,
Philip G. Potter,
Niko Tyni,
Greg Sheard,
Michael Schwern,
Mark Blackman,
Mike O'Regan,
Shawn Sorichetti,
Chris Dolan,
Matt Trout,
MATSUNO Tokuhiro,
and Pete Krawczyk for patches.
=head1 COPYRIGHT & LICENSE
Copyright 2004-2012 Andy Lester.
This library is free software; you can redistribute it and/or modify it
under the terms of the Artistic License version 2.0.
=cut
1; # End of Test::WWW::Mechanize
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