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pypm install infrae.testbrowser

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  4. Type pypm install infrae.testbrowser

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 Python 2.7Python 3.2Python 3.3
Windows (32-bit)
2.0b1
2.0b1 Available View build log
1.1 Available View build log
1.0 Available View build log
Windows (64-bit)
2.0b1
2.0b1 Available View build log
1.1 Available View build log
1.0 Available View build log
Mac OS X (10.5+)
2.0b1
2.0b1 Available View build log
1.1 Available View build log
1.0 Available View build log
Linux (32-bit)
2.0b1
2.0b1 Available View build log
1.1 Available View build log
1.0 Available View build log
Linux (64-bit)
2.0b1
2.0b1 Available View build log
1.1 Available View build log
1.0 Available View build log
 
Author
License
BSD
Depended by

infrae.testbrowser is test browser for WSGI applications sharing the same ideas than zope.testbrowser. It only has lxml and zope.interface as dependency.

A Selenium version of the same browser is available in this package as well. It share the same API than the default one, and requires Selenium 2 to work.

API

Browser
infrae.testbrowser.browser.Browser
Test browser. You instantiate a new one by giving your WSGI application to test as arguments to the constructor. The application will be available via localhost.

Example:

>>> browser = Browser(MyWSGIApplication)

On the browser you have the following methods:

open(url, method='GET', query=None, form=None, form_enctype='application/x-www-form-urlencoded', data=None, data_type=None)
Open the given url, with the given method. If query is provided, it will be encoded in the URL. If form is provided, it will be set as payload depending of form_enctype (application/x-www-form-urlencoded or multipart/form-data). An authentication can be provided in the URL (via user:password@localhost). As the host part doesn't really have any meaning, you can directly specify a path as URL. It return the HTTP status code returned by the application. An alternative to form is the data and data_type parameters. The param data is the pre-encoded body of the request, and data_type is the the content type of the body. These parameters are useful for http PUT.
reload()
Reload the currently open URL (sending back any posting data).
login(username, password=_marker)
Set an basic authorization header in the request to authenticate yourself with the given username and password. If password is not provided, username is used as password.
set_request_header(key, value)
Add an header called key with the value value used while querying the application. Headers are set for all further queries.
get_request_header(key)
Get the value of an header used while querying the application. Return None if there is no matching header.
clear_request_headers()
Remove all sets headers used while querying the application. Authentication one included.
get_link(content)
Return a link selected via content.
get_form(name=None, id=None)
Return a form selected via its name or id attribute (at least one of them is required).

The following properties are helpful as well:

url
Currently viewed URL, without the hostname part, but with query data and so.
location
Currently viewed path. It is recommanded to use this in your test instead of url. In case of Selenium testing, the URL will change depending of your local testing setup, meaning if your Selenium is not on the same computer than your test suite, the URL won't be localhost).
history
Last previously viewed URLs.
method
Method used to view the current page.
status
HTTP status for the currently viewed page.
status_code
HTTP status code as an integer for the currently viewed page.
content_type
Content type of the currently viewed page.
headers
Dictionary like access to response headers.
cookies
Dictionary like object to access existing cookies.
contents
Payload of the currently viewed page.
html
If the response was an HTML document, this contains an LXML parsed tree of the document.
xml
If the response was an XML response, this contains an LXML parsed tree of it.
json
If the response was a JSON response, this contains the loaded JSON object.
options
Access to browser options.
Browser cookies

You can access the currently set cookies with the dict-like object cookies available on the browser:

>>> browser.cookies['mycookie']
mycookie=myvalue

In addition to default dictionary methods, this object as the following methods:

add(name, value)
Add a new cookie called name with the given value value.
clear
Clear all set cookies.
Browser options

The following options are attributes of the options object, example:

>>> browser.options.handle_errors = False
server
Server name to use to query the WSGI application (default to localhost).
port
Port number to use to query the WSGI application (default to 80).
protocol
HTTP protocol to use to query the WSGI application (default to HTTP/1.0).
follow_redirect
Boolean indicating if a redirect must be automatically followed. Default to True.
follow_external_redirect
Boolean indicating if a redirect to a url that doesn't match the current server and port set in options should be automatically followed and handled by the current WSGI application. Activating it, will update the options server and port to the new value defined by the redirect URL. Default to False.
handle_errors
Set the WSGI flag wsgi.handleErrors in the WSGI environment. Default to True.
cookie_support
Boolean indicating if we must support cookie. By default to True.
default_wsgi_environ
Dictionnary that can be used to inject variable in the WSGI environment.
Inspect

The browser as an inspect attribute. You can register an Xpath expression with it, and query them after on HTML pages:

>>> browser.inspect.add('feedback', '//div[@class="feedback"]/span')
>>> self.assertEqual(browser.inspect.feedback, ['Everything ok'])

>>> browser.inspect.add('feedback', css='div.feedback span')
>>> self.assertEqual(browser.inspect.feedback, ['Everything ok'])
add(name, xpath=None, type='link', css=None, unique=False)

Add an expression called name that can be used to inspect the HTML content of the browser using the xpath expression (or the css one). type can be:

text
The result would be a list containing the text of each matched element.
normalized-text
The result would be a list containing the text where whitespaces have been normalized for each matched element. (not available on Selenium, the text is normalized by default by the browser).
link
The result would be a list of links.
form
The result would be a list of forms.
form-actions
The result would be the actions of a form.
form-fields
The result would be the fields of a form.
clickable
Available only on selenium, that is a list of elements, that you can click on it (even if they are not links).

If unique is true, no more than one item matching will be expected. An error will be asserted if there are more items matching, and None will be returned if none matched.

Macros

Macros let you add listing of action to do on the browser. An example will speak by itself:

>>> def create_content(browser, identifier, title):
...    form = browser.get_form('addform')
...    form.get_control('identifier').value = identifier
...    form.get_control('title').value = title
...    assert form.inspect.actions['save'].click() == 200

>>> browser.macros.add('create', create_content)

Now you can create content with your browser:

>>> browser.macros.create('test', 'Test Content')
>>> browser.macros.create('othertest', 'Other Test Content')
Forms

Forms have the following methods and attributes:

name
Name of the form.
action
URL where to form is posted.
method
Method to use to post the form.
enctype
Form enctype to use to post the form.
accept_charset
Charset to which the form data will be encoded before being posted.
controls
Dictionary containing all the controls of the form.
inspect
Inspect attribute, working like the one of the browser. By default, inspect.actions is registered to return all the submit-like controls of the form.
get_control(name)
Return the given form control by its name.
submit(name=None, value=None)
Submit the form, potentially add the control name and the given value to the submission. This return the HTTP status code returned by the application.

Calling str(form) will only return the HTML code of the form.

Forms support all the known HTTP controls.

Form controls

For consistency, all form controls share the attributes:

name
Name of the control.
type
Type of control, like value of type attribute for input and tag name in other cases.
value
Value stored in the control.
multiple
Boolean indicating if the control store multiple value.
options
If the value have to be chosen in a list of possible values, those are the possibilities.
checkable
Boolean indicating if the control can be checked (i.e. is it a checkbox).
checked
Boolean indicating if the control is checked (and so if the value will be sent if the control is checkable).

In addition action controls (like submit buttons, button), have:

submit()
Submit the form with this action. This return the HTTP status code returned by the application.
click()
Alias to submit().

For file control, you have to set as value the filename (i.e path to) of the file you want to upload.

Selenium browser
infrae.testbrowser.browser.selenium.Browser

Test browser. You instantiate a new one by giving your WSGI application to test as arguments to the constructor.

You have to use the browser as a context manager in order to start and stop the server that Selenium will use to access the application.

The following environement variable are available in order to control the connection to the Selenium server:

  • TESTBROWSER_BROWSER (default to firefox)
  • TESTBROWSER_SELENIUM_PLATFORM (default to the local one)
  • TESTBROWSER_SELENIUM_HOST (default to localhost)
  • TESTBROWSER_SELENIUM_PORT (default to 4444)
  • TESTBROWSER_SERVER (default to localhost)
  • TESTBROWSER_PORT (default to 8000)

If you set your testsuite to connect to a Selenium server that is not on your computer where you run your testsuite, please set the server and port options so that the Selenium knows how to connect to your application (it should be the network name of your computer).

The API is the same than the default browser, except for:

  • you can't access HTTP status or headers,
  • you can't change hidden fields (you can only do what the user can do).

Cookies do work however.

Selenium Browser options

The following options are attributes of the options object, example:

>>> browser.options.enable_javascript = False

They are on par with the possible configuration environment variables:

enable_javascript
Enable or disable Javascript in Selenium.
browser
String used to specify which browser you expect to use, i.e. 'firefox' or 'chrome' for instance.
selenium_host
Network name of the computer where the Selenium server run.
selenium_port
Port number where the Selenium server run.
selenium_platform
Operating system where the Selenium should run the wanted browsers (for instance set it to 'win' if you wish Selenium to pick a browser on Windows).
server
Network name of the computer where the testsuite will be running. This is the name that Selenium will use to access the tested application.
port
Port on which the test application will be bound so Selenium can access it.

Code repository

You can find the source code of this extensions in mercurial at https://hg.infrae.com/infrae.testbrowser.

Changelog

2.0.2 (2013/05/23)
  • Add cssselect as a dependency in order to work with lxml 3.x.
  • Fix PATH_INFO environment variable in the simple browser that was not properly quoted.
2.0.1 (2012/12/10)
  • Add new expression form-fields and form-actions that are alias to actions and fields exposed by form.
  • Improve expressions API.
2.0 (2012/09/24)
  • Add the option follow_external_redirect for the standard browser, which let you redirect to a different domain, but that domain is still handled by the wsgi application (this modify browser options to the new domain).
  • Add support for automatic JSON deserialization in a json attribute for the standard browser.
  • Improve expressions: add a type form to create forms out of the result of the expression, add a flag unique that makes possible for an expression to return only one value, or None if the expression didn't match.
  • Improve support for arbitrary http methods by providing data and data_type parameters to the method open for the standard browser.
  • Improve cookie support (support setting and deleting cookies, and multiple cookies).
  • Improve default WSGI environ to support HTTPS variable, if the port is set to 443.
  • Improve Selenium browser support.
2.0b1 (2011/11/07)
  • Add an initial support for test with Selenium 2. The Selenium browser takes a wsgi application as parameter and serves it using Python default wsgi server, in a thread, during the testing. The API of the Selenuim browser the one provided by the default one, in the measure of the possible.
  • Fix various issues concerning encoding, to allow unicode strings at many places.
  • Try to send back field values in the same order they are listed in the HTML document. Some systems use this to work.
  • Fields are allowed, for most of then, to share the same name, even if they are not of the same type. In this case, you set a list instead of a value to the widget you fetched.
  • Allow more things to be customized, like the hostname, port, protocol, the default wsgi environ. Some of those settings are customizable from the command line (same system than for Selenium).
  • The browser is a now a context manager. You can register some actions to be executed at the end of context manager, using handlers.
  • Add support for XML in the basic browser. An lxml parse tree is available in the xml attribute of the browser.
  • This now support only Python 2.6 and 2.7.
1.1 (2010-02-07)
  • Add support for a css option to inspection expressions.
  • Add an option id to get_form in order to be able to select a form by its id.
  • Add normalized-text as a valid expression type to expressions: it return the text of the matched nodes, where whitespaces are normalized.
  • Fix sending file when no file is selected.
  • Fix some detection issue with the button tag that doesn't seems to be handled correctly by LXML.
1.0 (2010-10-07)
  • Initial release.

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