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import re, doctest, unittest
from django.db import transaction
from django.core import management
from django.db.models import get_apps
normalize_long_ints = lambda s: re.sub(r'(?<![\w])(\d+)L(?![\w])', '\\1', s)
class OutputChecker(doctest.OutputChecker):
def check_output(self, want, got, optionflags):
ok = doctest.OutputChecker.check_output(self, want, got, optionflags)
# Doctest does an exact string comparison of output, which means long
# integers aren't equal to normal integers ("22L" vs. "22"). The
# following code normalizes long integers so that they equal normal
# integers.
if not ok:
return normalize_long_ints(want) == normalize_long_ints(got)
return ok
class DocTestRunner(doctest.DocTestRunner):
def __init__(self, *args, **kwargs):
doctest.DocTestRunner.__init__(self, *args, **kwargs)
self.optionflags = doctest.ELLIPSIS
def report_unexpected_exception(self, out, test, example, exc_info):
doctest.DocTestRunner.report_unexpected_exception(self,out,test,example,exc_info)
# Rollback, in case of database errors. Otherwise they'd have
# side effects on other tests.
from django.db import transaction
transaction.rollback_unless_managed()
class TestCase(unittest.TestCase):
def install_fixtures(self):
"""If the Test Case class has a 'fixtures' member, clear the database and
install the named fixtures at the start of each test.
"""
management.flush(verbosity=0, interactive=False)
if hasattr(self, 'fixtures'):
management.load_data(self.fixtures, verbosity=0)
def run(self, result=None):
"""Wrapper around default run method so that user-defined Test Cases
automatically call install_fixtures without having to include a call to
super().
"""
self.install_fixtures()
super(TestCase, self).run(result)
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