A flask extension for testing with should-dsl
This extension adds some basic matchers to should-dsl to allow it to be used easily along with the standard flask testing setup.
- Python 2.6, 2.7 or PyPi (others may work, but these are all that's tested)
- Should-DSL
- Flask
The recommended way to install flask is via pip:
pip install flask-should-dsl
To contribute to flask-should-dsl:
- Create a fork of the repository on github
- Create a feature branch off the develop branch
- Do work
- When you're ready to contribute, create a pull request on github.
To enable the flask-should-dsl matchers, simply import the module:
import flask.ext.should_dslThe matchers provided by flask-should-dsl are intended to be used with the response objects that are returned by the flask test client.
The following matchers are provided by flask-should-dsl:
This checks the status of a response object
>>> response = app.get('/ok')
>>> response |should| have_status(200)
>>> response |should| have_status(400)
Traceback (most recent call last):
...
ShouldNotSatisfied: Expected the status code 400, but got 200These matchers (be_200, be_404, be_500 etc.) provide shortcuts to check the
status of a response object. The matchers are avaliable with be, abort and
return prefixes, to allow for more readable code depending on the
circumstances. There should be matchers for each status code supported by
werkzeug. If you need a status code that is unsupported, the have_status
matcher may be used (or alternatively, file a bug and I'll add support for it)
>>> response = app.get('/ok')
>>> response |should| be_200
>>> response |should_not| be_200
Traceback (most recent call last):
...
ShouldNotSatisfied: Expected the status code not to be 200
>>> app.get('/') |should_not| abort_500
>>> app.get('/') |should_not| return_404This matcher checks if a response contains a redirect to another page
>>> response = app.get('/redirect')
>>> response.location = 'http://localhost/redir'
>>> response |should| redirect_to('/redir')
>>> response.location = 'http://localhost/elsewhere'
>>> response |should| redirect_to('/redir')
Traceback (most recent call last):
...
ShouldNotSatisfied: Expected a redirect to "http://localhost/redir" but got "http://localhost/elsewhere"
>>> response = app.get('/ok')
>>> response |should| redirect_to('/redir')
Traceback (most recent call last):
...
ShouldNotSatisfied: Expected a redirect status, but got 200This matcher checks if a response object contains matching JSON.
>>> response = app.get('/json')
>>> response |should| have_json({'a': 'b'})
>>> response |should| have_json({'b': 'c'})
ShouldNotSatisfied: Expected response to have json:
{'b': 'c'}
but got:
{u'a': u'b'}It's also possible to pass in keyword arguments to have_json, which will be converted into a dictionary before being compared to the json.
>>> response |should| have_json(a='b')
>>> response |should| have_json(b='c')
ShouldNotSatisfied: Expected response to have json:
{'b': 'c'}This matcher checks if a response has it's content_type set to a certain value
>>> response = app.get('/ok')
>>> response |should| have_content_type('text/html')
>>> response |should| have_content_type('application/json')
ShouldNotSatisfied: Expected content type 'application/json', got 'text/html'
>>> r |should_not| have_content_type('text/html')
ShouldNotSatisfied: Expected content type to not be 'text/html'This matcher also supports wildcard matches, and if you do not supply both a type & a subtype, then it will match on either.
>>> response = app.get('/ok')
>>> response |should| have_content_type('html')
>>> response |should| have_content_type('text')
>>> response |should| have_content_type('text/*')
>>> response |should| have_content_type('*/html')This matcher checks if a response has a header, and optionally checks if that header is set to a certain value.
>>> response = app.get('/ok')
>>> response |should| have_header('Content-Type')
>>> response |should_not| have_header('X-BadHeader')
>>> response |should_not| have_header('X-BadHeader', 'Something')
>>> response |should_not| have_header('X-BadHeader: Something')
>>> response |should| have_header('Content-Length', '100')
ShouldNotSatisfied: Expected header 'Content-Length' to be '100' not '0'This matcher checks if a response contains certain content. By default, it
expects the content to exactly match the input, but this can be overridden
with the find option.
>>> response = app.get('/hello')
>>> response |should| have_content('hello')
>>> response |should_not| have_content('hello')
ShouldNotSatisfied: Expected content not to be 'hello'
>>> response |should| have_content('ello', find=True)
>>> response |should| have_content('hell', find=True)
>>> response |should| have_content('bye', find=True)
ShouldNotSatisfied: Expected to find 'bye' in 'hello'
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