t/lib/Selenium.pm

   1 package t::lib::Selenium;
   2
   3 # This file is part of Koha.
   4 #
   5 # Koha is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # Koha is distributed in the hope that it will be useful, but
  11 # WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  17
  18
  19 use Modern::Perl;
  20 use Carp qw( croak );
  21
  22 use C4::Context;
  23
  24 use base qw(Class::Accessor);
  25 __PACKAGE__->mk_accessors(qw(login password base_url selenium_addr selenium_port driver));
  26
  27 sub new {
  28     my ( $class, $params ) = @_;
  29     my $self   = {};
  30     my $config = $class->config;
  31     $self->{login}    = $params->{login}    || $config->{login};
  32     $self->{password} = $params->{password} || $config->{password};
  33     $self->{base_url} = $params->{base_url} || $config->{base_url};
  34     $self->{selenium_addr} = $params->{selenium_addr} || $config->{selenium_addr};
  35     $self->{selenium_port} = $params->{selenium_port} || $config->{selenium_port};
  36     $self->{driver} = Selenium::Remote::Driver->new(
  37         port               => $self->{selenium_port},
  38         remote_server_addr => $self->{selenium_addr},
  39         error_handler => sub {
  40             my $selenium_error = $_[1];
  41             print STDERR "\nSTRACE:";
  42             my $i = 1;
  43             while ( (my @call_details = (caller($i++))) ){
  44                 print STDERR "\t" . $call_details[1]. ":" . $call_details[2] . " in " . $call_details[3]."\n";
  45             }
  46             print STDERR "\n";
  47             croak $selenium_error; }
  48     );
  49     return bless $self, $class;
  50 }
  51
  52 sub config {
  53     return {
  54         login    => $ENV{KOHA_USER} || 'koha',
  55         password => $ENV{KOHA_PASS} || 'koha',
  56         base_url => ( $ENV{KOHA_INTRANET_URL} || C4::Context->preference("staffClientBaseURL") ) . "/cgi-bin/koha/",
  57         selenium_addr => $ENV{SELENIUM_ADDR} || 'localhost',
  58         selenium_port => $ENV{SELENIUM_PORT} || 4444,
  59     };
  60 }
  61
  62 sub auth {
  63     my ( $self, $login, $password ) = @_;
  64
  65     $login ||= $self->login;
  66     $password ||= $self->password;
  67     my $mainpage = $self->base_url . 'mainpage.pl';
  68
  69     $self->driver->get($mainpage);
  70     $self->fill_form( { userid => $login, password => $password } );
  71     my $login_button = $self->driver->find_element('//input[@id="submit"]');
  72     $login_button->submit();
  73 }
  74
  75 sub fill_form {
  76     my ( $self, $values ) = @_;
  77     while ( my ( $id, $value ) = each %$values ) {
  78         my $element = $self->driver->find_element('//*[@id="'.$id.'"]');
  79         my $tag = $element->get_tag_name();
  80         if ( $tag eq 'input' ) {
  81             $self->driver->find_element('//input[@id="'.$id.'"]')->send_keys($value);
  82         } elsif ( $tag eq 'select' ) {
  83             $self->driver->find_element('//select[@id="'.$id.'"]/option[@value="'.$value.'"]')->click;
  84         }
  85     }
  86 }
  87
  88 sub submit_form {
  89     my ( $self ) = @_;
  90
  91     my $default_submit_selector = '//fieldset[@class="action"]/input[@type="submit"]';
  92     $self->click_when_visible( $default_submit_selector );
  93 }
  94
  95 sub click {
  96     my ( $self, $params ) = @_;
  97     my $xpath_selector;
  98     if ( exists $params->{main} ) {
  99         $xpath_selector = '//div[@id="'.$params->{main}.'"]';
 100     } elsif ( exists $params->{main_class} ) {
 101         $xpath_selector = '//div[@class="'.$params->{main_class}.'"]';
 102     }
 103     if ( exists $params->{href} ) {
 104         if ( ref( $params->{href} ) ) {
 105             for my $k ( keys %{ $params->{href} } ) {
 106                 if ( $k eq 'ends-with' ) {
 107                     # ends-with version for xpath version 1
 108                     my $ends_with = $params->{href}{"ends-with"};
 109                     $xpath_selector .= '//a[substring(@href, string-length(@href) - string-length("'.$ends_with.'") + 1 ) = "'.$ends_with.'"]';
 110                     # ends-with version for xpath version 2
 111                     #$xpath_selector .= '//a[ends-with(@href, "'.$ends_with.'") ]';
 112
 113             } else {
 114                     die "Only ends-with is supported so far ($k)";
 115                 }
 116             }
 117         } else {
 118             $xpath_selector .= '//a[contains(@href, "'.$params->{href}.'")]';
 119         }
 120     }
 121     if ( exists $params->{id} ) {
 122         $xpath_selector .= '//*[@id="'.$params->{id}.'"]';
 123     }
 124     $self->click_when_visible( $xpath_selector );
 125 }
 126
 127 sub click_when_visible {
 128     my ( $self, $xpath_selector ) = @_;
 129     $self->driver->set_implicit_wait_timeout(20000);
 130     my ($visible, $elt);
 131     while ( not $visible ) {
 132         $elt = $self->driver->find_element($xpath_selector);
 133         $visible = $elt->is_displayed;
 134         $self->driver->pause(1000) unless $visible;
 135     }
 136     $elt->click;
 137 }
 138
 139 =head1 NAME
 140
 141 t::lib::Selenium - Selenium helper module
 142
 143 =head1 SYNOPSIS
 144
 145     my $s = t::lib::Selenium->new;
 146     my $driver = $s->driver;
 147     my $base_url = $s->base_url;
 148     $s->auth;
 149     $driver->get($s->base_url . 'mainpage.pl');
 150     $s->fill_form({ input_id => 'value' });
 151
 152 =head1 DESCRIPTION
 153
 154 The goal of this module is to group the different actions we need
 155 when we use automation test using Selenium
 156 =head1 METHODS
 157
 158 =head2 new
 159
 160     my $s = t::lib::Selenium->new;
 161
 162     Constructor - Returns the object Selenium
 163     You can pass login, password, base_url, selenium_addr, selenium_port
 164     If not passed, the environment variables will be used
 165     KOHA_USER, KOHA_PASS, KOHA_INTRANET_URL, SELENIUM_ADDR SELENIUM_PORT
 166     Or koha, koha, syspref staffClientBaseURL, localhost, 4444
 167
 168 =head2 auth
 169
 170     $s->auth;
 171
 172     Will login into Koha.
 173
 174 =head2 fill_form
 175
 176     $driver->get($url)
 177     $s->fill_form({
 178         input_id => 'value',
 179         element_id => 'other_value',
 180     });
 181
 182     Will fill the different elements of a form.
 183     The keys must be element ids (input and select are supported so far)
 184     The values must a string.
 185
 186 =head2 submit_form
 187
 188     $s->submit_form;
 189
 190     It will submit the form using the submit button present in in the fieldset with a clas="action".
 191     It should be the default way. If it does not work you should certainly fix the Koha interface.
 192
 193 =head2 click
 194
 195     $s->click
 196
 197     This is a bit dirty for now but will evolve depending on the needs
 198     3 parameters possible but only the following 2 forms are used:
 199     $s->click({ href => '/module/script.pl?foo=bar', main => 'doc3' }); # Sometimes we have doc or doc3. To make sure we are not going to hit a link in the header
 200     $s->click({ id => 'element_id });
 201
 202 =head2 click_when_visible
 203
 204     $c->click_when_visible
 205
 206     Should always be called to avoid the "An element could not be located on the page" error
 207
 208 =head2
 209
 210
 211 =head1 AUTHORS
 212
 213 Jonathan Druart <jonathan.druart@bugs.koha-community.org>
 214
 215 Alex Buckley <alexbuckley@catalyst.net.nz>
 216
 217 Koha Development Team
 218
 219 =head1 COPYRIGHT
 220
 221 Copyright 2017 - Koha Development Team
 222
 223 =head1 LICENSE
 224
 225 This file is part of Koha.
 226
 227 Koha is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
 228 the Free Software Foundation; either version 3 of the License, or (at your option) any later version.
 229
 230 Koha is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 231
 232 You should have received a copy of the GNU General Public License along with Koha; if not, see <http://www.gnu.org/licenses>.
 233
 234 =cut
 235
 236 1;