NAME
Selenium::Remote::Driver - Perl Client for Selenium Remote Driver
SYNOPSIS
use Selenium::Remote::Driver;
my $driver = new Selenium::Remote::Driver;
$driver->get('http://www.google.com');
print $driver->get_title();
$driver->quit();DESCRIPTION
Selenium is a test tool that allows you to write automated web application UI tests in any programming language against any HTTP website using any mainstream JavaScript-enabled browser. This module is an implementation of the client for the Remote driver that Selenium provides. You can find bindings for other languages at this location:
http://code.google.com/p/selenium/
This module sends commands directly to the Server using HTTP. Using this module together with the Selenium Server, you can automatically control any supported browser. To use this module, you need to have already downloaded and started the Selenium Server (Selenium Server is a Java application).
USAGE (read this first)
Remote Driver Response
Selenium::Remote::Driver uses the JsonWireProtocol to communicate with the Selenium Server. If an error occurs while executing the command then the server sends back an HTTP error code with a JSON encoded reponse that indicates the precise Response Error Code. The module will then croak with the error message associated with this code. If no error occurred, then the subroutine called will return the value sent back from the server (if a return value was sent).
So a rule of thumb while invoking methods on the driver is if the method did not croak when called, then you can safely assume the command was successful even if nothing was returned by the method.
WebElement
Selenium Webdriver represents all the HTML elements as WebElement, which is in turn represented by Selenium::Remote::WebElement module. So any method that deals with WebElements will return and/or expect WebElement object. The POD for that module describes all the methods that perform various actions on the WebElements like click, submit etc.
To interact with any WebElement you have to first "find" it, read the POD for find_element or find_elements for further info. Once you find the required element then you can perform various actions. If you don't call find_* method first, all your further actions will fail for that element. Finally, just remember that you don't have to instantiate WebElement objects at all - they will be automatically created when you use the find_* methods.
FUNCTIONS
new
Description:
Constructor for Driver. It'll instantiate the object if it can communicate
with the Selenium RC server.
Input: 7 (all optional)
desired_capabilities - HASH - Following options are accepted:
Optional:
'remote_server_addr' - <string> - IP or FQDN of the RC server machine
'browser_name' - <string> - desired browser string:
{iphone|firefox|internet explorer|htmlunit|iphone|chrome}
'version' - <string> - desired browser version number
'platform' - <string> - desired platform:
{WINDOWS|XP|VISTA|MAC|LINUX|UNIX|ANY}
'javascript' - <boolean> - whether javascript should be supported
'auto_close' - <boolean> - whether driver should end session on remote
server on close.
'extra_capabilities' - HASH of extra capabilities
If no values are provided, then these defaults will be assumed:
'remote_server_addr' => 'localhost'
'port' => '4444'
'browser_name' => 'firefox'
'version' => ''
'platform' => 'ANY'
'javascript' => 1
'auto_close' => 1
Output:
Remote Driver object
Usage:
my $driver = new Selenium::Remote::Driver;
or
my $driver = new Selenium::Remote::Driver('browser_name' => 'firefox',
'platform' => 'MAC');
or
my $driver = new Selenium::Remote::Driver('remote_server_addr' => '10.10.1.1',
'port' => '2222',
auto_close => 0
);
or
my $driver = new Selenium::Remote::Driver('browser_name' => 'chrome',
'platform' => 'VISTA',
'extra_capabilities' => {'chrome.switches' => ["--user-data-dir=$ENV{LOCALAPPDATA}\\Google\\Chrome\\User Data"],},
);get_sessions
Description:
Returns a list of the currently active sessions. Each session will be
returned as an array of Hashes with the following keys:
'id' : The session ID
'capabilities: An object describing session's capabilities
Output:
Array of Hashes
Usage:
print Dumper $driver->get_sessions();status
Description:
Query the server's current status. All server implementations
should return two basic objects describing the server's current
platform and when the server was built.
Output:
Hash ref
Usage:
print Dumper $driver->status;get_alert_text
Description:
Gets the text of the currently displayed JavaScript alert(), confirm()
or prompt() dialog.
Example
my $string = $driver->get_alert_text;send_keys_to_active_element
Description:
Send a sequence of key strokes to the active element. This command is
similar to the send keys command in every aspect except the implicit
termination: The modifiers are not released at the end of the call.
Rather, the state of the modifier keys is kept between calls, so mouse
interactions can be performed while modifier keys are depressed.
Input: 1
Required:
{ARRAY | STRING} - Array of strings or a string.
Usage:
$driver->send_keys_to_active_element('abcd', 'efg');
$driver->send_keys_to_active_element('hijk');
or
# include the WDKeys module
use Selenium::Remote::WDKeys;
.
.
$driver->send_keys_to_active_element(KEYS->{'space'}, KEYS->{'enter'});send_keys_to_alert
Synonymous with send_keys_to_prompt
send_keys_to_prompt
Description:
Sends keystrokes to a JavaScript prompt() dialog.
Input:
{string} keys to send
Example:
$driver->send_keys_to_prompt('hello world');
or
ok($driver->get_alert_text eq 'Please Input your name','prompt appears');
$driver->send_keys_to_alert("Larry Wall");
$driver->accept_alert;accept_alert
Description:
Accepts the currently displayed alert dialog. Usually, this is
equivalent to clicking the 'OK' button in the dialog.
Example:
$driver->accept_alert;dismiss_alert
Description:
Dismisses the currently displayed alert dialog. For comfirm()
and prompt() dialogs, this is equivalent to clicking the
'Cancel' button. For alert() dialogs, this is equivalent to
clicking the 'OK' button.
Example:
$driver->dismiss_alert;mouse_move_to_location
Description:
Move the mouse by an offset of the specificed element. If no
element is specified, the move is relative to the current mouse
cursor. If an element is provided but no offset, the mouse will be
moved to the center of the element. If the element is not visible,
it will be scrolled into view.
Output:
STRING -
Usage:
# element - the element to move to. If not specified or is null, the offset is relative to current position of the mouse.
# xoffset - X offset to move to, relative to the top-left corner of the element. If not specified, the mouse will move to the middle of the element.
# yoffset - Y offset to move to, relative to the top-left corner of the element. If not specified, the mouse will move to the middle of the element.
print $driver->mouse_move_to_location(element => e, xoffset => x, yoffset => y);move_to
Synonymous with mouse_move_to_location
get_capabilities
Description:
Retrieve the capabilities of the specified session.
Output:
HASH of all the capabilities.
Usage:
my $capab = $driver->get_capabilities();
print Dumper($capab);set_timeout
Description:
Set the amount of time, in milliseconds, that asynchronous scripts executed
by execute_async_script() are permitted to run before they are
aborted and a |Timeout| error is returned to the client.
Input:
ms - <NUMBER> - The amount of time, in milliseconds, that time-limited
commands are permitted to run.
Usage:
$driver->set_async_script_timeout(1000);set_implicit_wait_timeout
Description:
Set the amount of time the driver should wait when searching for elements.
When searching for a single element, the driver will poll the page until
an element is found or the timeout expires, whichever occurs first.
When searching for multiple elements, the driver should poll the page until
at least one element is found or the timeout expires, at which point it
will return an empty list. If this method is never called, the driver will
default to an implicit wait of 0ms.
Input:
Time in milliseconds.
Output:
Server Response Hash with no data returned back from the server.
Usage:
$driver->set_implicit_wait_timeout(10);close
Description:
Close the current window.
Usage:
$driver->close();
or
#close a popup window
my $handles = $driver->get_window_handles;
$driver->switch_to_window($handles->[1]);
$driver->close();
$driver->switch_to_window($handles->[0]);quit
Description:
Delete the session & close open browsers.
Usage:
$driver->quit();get_current_window_handle
Description:
Retrieve the current window handle.
Output:
STRING - the window handle
Usage:
print $driver->get_current_window_handle();get_window_handles
Description:
Retrieve the list of window handles used in the session.
Output:
ARRAY of STRING - list of the window handles
Usage:
print Dumper $driver->get_window_handles;
or
# get popup, close, then back
my $handles = $driver->get_window_handles;
$driver->switch_to_window($handles->[1]);
$driver->close;
$driver->switch_to_window($handles->[0]);get_window_size
Description:
Retrieve the window size
Input:
STRING - <optional> - window handle (default is 'current' window)
Output:
HASH - containing keys 'height' & 'width'
Usage:
my $window_size = $driver->get_window_size();
print $window_size->{'height'}, $window_size->('width');get_window_position
Description:
Retrieve the window position
Input:
STRING - <optional> - window handle (default is 'current' window)
Output:
HASH - containing keys 'x' & 'y'
Usage:
my $window_size = $driver->get_window_position();
print $window_size->{'x'}, $window_size->('y');get_current_url
Description:
Retrieve the url of the current page
Output:
STRING - url
Usage:
print $driver->get_current_url();navigate
Description:
Navigate to a given url. This is same as get() method.
Input:
STRING - url
Usage:
$driver->navigate('http://www.google.com');get
Description:
Navigate to a given url
Input:
STRING - url
Usage:
$driver->get('http://www.google.com');get_title
Description:
Get the current page title
Output:
STRING - Page title
Usage:
print $driver->get_title();go_back
Description:
Equivalent to hitting the back button on the browser.
Usage:
$driver->go_back();go_forward
Description:
Equivalent to hitting the forward button on the browser.
Usage:
$driver->go_forward();refresh
Description:
Reload the current page.
Usage:
$driver->refresh();javascript
Description:
returns true if javascript is enabled in the driver.
Usage:
if ($driver->javascript) { ...; }execute_async_script
Description:
Inject a snippet of JavaScript into the page for execution in the context
of the currently selected frame. The executed script is assumed to be
asynchronous and must signal that is done by invoking the provided
callback, which is always provided as the final argument to the function.
The value to this callback will be returned to the client.
Asynchronous script commands may not span page loads. If an unload event
is fired while waiting for a script result, an error should be returned
to the client.
Input: 2 (1 optional)
Required:
STRING - Javascript to execute on the page
Optional:
ARRAY - list of arguments that need to be passed to the script.
Output:
{*} - Varied, depending on the type of result expected back from the script.
Usage:
my $script = q{
var arg1 = arguments[0];
var callback = arguments[arguments.length-1];
var elem = window.document.findElementById(arg1);
callback(elem);
};
my $callback = q{return arguments[0];};
my $elem = $driver->execute_async_script($script,'myid',$callback);
$elem->click;execute_script
Description:
Inject a snippet of JavaScript into the page and return its result.
WebElements that should be passed to the script as an argument should be
specified in the arguments array as WebElement object. Likewise,
any WebElements in the script result will be returned as WebElement object.
Input: 2 (1 optional)
Required:
STRING - Javascript to execute on the page
Optional:
ARRAY - list of arguments that need to be passed to the script.
Output:
{*} - Varied, depending on the type of result expected back from the script.
Usage:
my $script = q{
var arg1 = arguments[0];
var elem = window.document.findElementById(arg1);
return elem;
};
my $elem = $driver->execute_script($script,'myid');
$elem->click;screenshot
Description:
Get a screenshot of the current page as a base64 encoded image.
Output:
STRING - base64 encoded image
Usage:
print $driver->screenshot();
or
require MIME::Base64;
open(FH,'>','screenshot.png');
binmode FH;
my $png_base64 = $driver->screenshot();
print FH MIME::Base64::decode_base64($png_base64);
close FH;available_engines
Description:
List all available engines on the machine. To use an engine, it has to be present in this list.
Output:
{Array.<string>} A list of available engines
Usage:
print Dumper $driver->available_engines;switch_to_frame
Description:
Change focus to another frame on the page. If the frame ID is null, the
server will switch to the page's default content.
Input: 1
Required:
{STRING | NUMBER | NULL} - ID of the frame which can be one of the three
mentioned.
Usage:
$driver->switch_to_frame('frame_1');switch_to_window
Description:
Change focus to another window. The window to change focus to may be
specified by its server assigned window handle, or by the value of its name
attribute.
Input: 1
Required:
STRING - Window handle or the Window name
Usage:
$driver->switch_to_window('MY Homepage');
or
# close a popup window and switch back
my $handles = $driver->get_window_handles;
$driver->switch_to_window($handles->[1]);
$driver->close;
$driver->switch_to_window($handles->[0]);get_speed
Description:
Get the current user input speed. The actual input speed is still browser
specific and not covered by the Driver.
Output:
STRING - One of these: SLOW, MEDIUM, FAST
Usage:
print $driver->get_speed();set_speed
Description:
Set the user input speed.
Input:
STRING - One of these: SLOW, MEDIUM, FAST
Usage:
$driver->set_speed('MEDIUM');
Note: This function is a no-op in WebDriver (?). See
https://groups.google.com/d/topic/selenium-users/oX0ZnYFPuSA/discussion and
http://code.google.com/p/selenium/source/browse/trunk/java/client/src/org/openqa/selenium/WebDriverCommandProcessor.javaset_window_position
Description:
Set the position (on screen) where you want your browser to be displayed.
Input:
INT - x co-ordinate
INT - y co-ordinate
STRING - <optional> - window handle (default is 'current' window)
Output:
BOOLEAN - Success or failure
Usage:
$driver->set_window_position(50, 50);set_window_size
Description:
Set the size of the browser window
Input:
INT - height of the window
INT - width of the window
STRING - <optional> - window handle (default is 'current' window)
Output:
BOOLEAN - Success or failure
Usage:
$driver->set_window_size(640, 480);get_all_cookies
Description:
Retrieve all cookies visible to the current page. Each cookie will be
returned as a HASH reference with the following keys & their value types:
'name' - STRING
'value' - STRING
'path' - STRING
'domain' - STRING
'secure' - BOOLEAN
Output:
ARRAY of HASHES - list of all the cookie hashes
Usage:
print Dumper($driver->get_all_cookies());add_cookie
Description:
Set a cookie on the domain.
Input: 5 (1 optional)
Required:
'name' - STRING
'value' - STRING
'path' - STRING
'domain' - STRING
Optional:
'secure' - BOOLEAN - default is false.
Usage:
$driver->add_cookie('foo', 'bar', '/', '.google.com', 0)delete_all_cookies
Description:
Delete all cookies visible to the current page.
Usage:
$driver->delete_all_cookies();delete_cookie_named
Description:
Delete the cookie with the given name. This command will be a no-op if there
is no such cookie visible to the current page.
Input: 1
Required:
STRING - name of cookie to delete
Usage:
$driver->delete_cookie_named('foo');get_page_source
Description:
Get the current page source.
Output:
STRING - The page source.
Usage:
print $driver->get_page_source();find_element
Description:
Search for an element on the page, starting from the document root. The
located element will be returned as a WebElement object.
Input: 2 (1 optional)
Required:
STRING - The search target.
Optional:
STRING - Locator scheme to use to search the element, available schemes:
{class, class_name, css, id, link, link_text, partial_link_text,
tag_name, name, xpath}
Defaults to 'xpath'.
Output:
Selenium::Remote::WebElement - WebElement Object
Usage:
$driver->find_element("//input[\@name='q']");find_elements
Description:
Search for multiple elements on the page, starting from the document root.
The located elements will be returned as an array of WebElement object.
Input: 2 (1 optional)
Required:
STRING - The search target.
Optional:
STRING - Locator scheme to use to search the element, available schemes:
{class, class_name, css, id, link, link_text, partial_link_text,
tag_name, name, xpath}
Defaults to 'xpath'.
Output:
ARRAY of Selenium::Remote::WebElement - Array of WebElement Objects
Usage:
$driver->find_elements("//input");find_child_element
Description:
Search for an element on the page, starting from the identified element. The
located element will be returned as a WebElement object.
Input: 3 (1 optional)
Required:
Selenium::Remote::WebElement - WebElement object from where you want to
start searching.
STRING - The search target. (Do not use a double whack('//')
in an xpath to search for a child element
ex: '//option[@id="something"]'
instead use a dot whack ('./')
ex: './option[@id="something"]')
Optional:
STRING - Locator scheme to use to search the element, available schemes:
{class, class_name, css, id, link, link_text, partial_link_text,
tag_name, name, xpath}
Defaults to 'xpath'.
Output:
Selenium::Remote::WebElement - WebElement Object
Usage:
my $elem1 = $driver->find_element("//select[\@name='ned']");
# note the usage of ./ when searching for a child element instead of //
my $child = $driver->find_child_element($elem1, "./option[\@value='es_ar']");find_child_elements
Description:
Search for multiple element on the page, starting from the identified
element. The located elements will be returned as an array of WebElement
objects.
Input: 3 (1 optional)
Required:
Selenium::Remote::WebElement - WebElement object from where you want to
start searching.
STRING - The search target.
Optional:
STRING - Locator scheme to use to search the element, available schemes:
{class, class_name, css, id, link, link_text, partial_link_text,
tag_name, name, xpath}
Defaults to 'xpath'.
Output:
ARRAY of Selenium::Remote::WebElement - Array of WebElement Objects.
Usage:
my $elem1 = $driver->find_element("//select[\@name='ned']");
my $child = $driver->find_child_elements($elem1, "//option");get_active_element
Description:
Get the element on the page that currently has focus.. The located element
will be returned as a WebElement object.
Output:
Selenium::Remote::WebElement - WebElement Object
Usage:
$driver->get_active_element();send_modifier
Description:
Send an event to the active element to depress or release a modifier key.
Input: 2
Required:
value - String - The modifier key event to be sent. This key must be one 'Ctrl','Shift','Alt',' or 'Command'/'Meta' as defined by the send keys command
isdown - Boolean/String - Whether to generate a key down or key up
Usage:
$driver->send_modifier('Alt','down');
$elem->send_keys('c');
$driver->send_modifier('Alt','up');
or
$driver->send_modifier('Alt',1);
$elem->send_keys('c');
$driver->send_modifier('Alt',0);compare_elements
Description:
Test if two element IDs refer to the same DOM element.
Input: 2
Required:
Selenium::Remote::WebElement - WebElement Object
Selenium::Remote::WebElement - WebElement Object
Output:
BOOLEAN
Usage:
$driver->compare_elements($elem_obj1, $elem_obj2);click
Description:
Click any mouse button (at the coordinates set by the last moveto command).
Input:
button - any one of 'LEFT'/0 'MIDDLE'/1 'RIGHT'/2
defaults to 'LEFT'
Usage:
$driver->click('LEFT');
$driver->click(1); #MIDDLE
$driver->click('RIGHT');
$driver->click; #Defaults to leftdouble_click
Description:
Double-clicks at the current mouse coordinates (set by moveto).
Usage:
$driver->double_click;button_down
Description:
Click and hold the left mouse button (at the coordinates set by the
last moveto command). Note that the next mouse-related command that
should follow is buttondown . Any other mouse command (such as click
or another call to buttondown) will yield undefined behaviour.
Usage:
$self->button_down;button_up
Description:
Releases the mouse button previously held (where the mouse is
currently at). Must be called once for every buttondown command
issued. See the note in click and buttondown about implications of
out-of-order commands.
Usage:
$self->button_up;SEE ALSO
For more information about Selenium , visit the website at http://code.google.com/p/selenium/.
BUGS
The Selenium issue tracking system is available online at http://github.com/aivaturi/Selenium-Remote-Driver/issues.
AUTHOR
Perl Bindings for Selenium Remote Driver by Aditya Ivaturi <ivaturi@gmail.com>
ACKNOWLEDGEMENTS
The following people have contributed to this module. (Thanks!)
Gordon Child
Phil Kania
Phil Mitchell
Allen Lew
Tom Hukins
LICENSE
Copyright (c) 2010-2011 Aditya Ivaturi, Gordon Child
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.