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Writing Tests for Plugins
=========================
Testing a VCS backend
---------------------
You'll need to make several subclasses to get this working in the
current test infrastructure. But first, we start with some imports.
These are pretty much required for all plugin tests::
from trac.tests.functional import (FunctionalTestSuite,
FunctionalTestCaseSetup,
FunctionalTwillTestCaseSetup, tc)
from trac.tests.functional import testenv
Now subclass
:class:`~trac.tests.functional.testenv.FunctionalTestEnvironment`.
This allows you to override methods that you need to set up your repo
instead of the default Subversion one::
class GitFunctionalTestEnvironment(testenv.FunctionalTestEnvironment):
repotype = 'git'
def create_repo(self):
os.mkdir(self.repodir)
self.call_in_repo(["git", "init"])
self.call_in_repo(["git", "config", "user.name", "Test User"])
self.call_in_repo(["git", "config", "user.email", "test@example.com"])
def get_enabled_components(self):
return ['tracext.git.*']
def get_repourl(self):
return self.repodir + '/.git'
repourl = property(get_repourl)
Now you need a bit of glue that sets up a test suite specifically for
your plugin's repo type. Any testcases within this test suite will
use the same environment. No other changes are generally necessary on
the test suite::
class GitFunctionalTestSuite(FunctionalTestSuite):
env_class = GitFunctionalTestEnvironment
Your test cases can call functions on either the :ref:`tester
<functional-tester>` or :ref:`twill commands <using-twill>` to do
their job. Here's one that just verifies we were able to sync the
repo without issue::
class EmptyRepoTestCase(FunctionalTwillTestCaseSetup):
def runTest(self):
self._tester.go_to_timeline()
tc.notfind('Unsupported version control system')
Lastly, there's some boilerplate needed for the end of your test file,
so it can be run from the command line::
def suite():
# Here you need to create an instance of your subclass
suite = GitFunctionalTestSuite()
suite.addTest(EmptyRepoTestCase())
# ...
suite.addTest(AnotherRepoTestCase())
return suite
if __name__ == '__main__':
unittest.main(defaultTest='suite')
|
