373 lines
14 KiB
Python
373 lines
14 KiB
Python
import unittest as real_unittest
|
|
|
|
from django.conf import settings
|
|
from django.core.exceptions import ImproperlyConfigured
|
|
from django.db.models import get_app, get_apps
|
|
from django.test import _doctest as doctest
|
|
from django.test.utils import setup_test_environment, teardown_test_environment
|
|
from django.test.testcases import OutputChecker, DocTestRunner, TestCase
|
|
from django.utils import unittest
|
|
from django.utils.importlib import import_module
|
|
from django.utils.module_loading import module_has_submodule
|
|
|
|
__all__ = ('DjangoTestSuiteRunner')
|
|
|
|
# The module name for tests outside models.py
|
|
TEST_MODULE = 'tests'
|
|
|
|
doctestOutputChecker = OutputChecker()
|
|
|
|
|
|
def get_tests(app_module):
|
|
parts = app_module.__name__.split('.')
|
|
prefix, last = parts[:-1], parts[-1]
|
|
try:
|
|
test_module = import_module('.'.join(prefix + [TEST_MODULE]))
|
|
except ImportError:
|
|
# Couldn't import tests.py. Was it due to a missing file, or
|
|
# due to an import error in a tests.py that actually exists?
|
|
# app_module either points to a models.py file, or models/__init__.py
|
|
# Tests are therefore either in same directory, or one level up
|
|
if last == 'models':
|
|
app_root = import_module('.'.join(prefix))
|
|
else:
|
|
app_root = app_module
|
|
|
|
if not module_has_submodule(app_root, TEST_MODULE):
|
|
test_module = None
|
|
else:
|
|
# The module exists, so there must be an import error in the test
|
|
# module itself.
|
|
raise
|
|
return test_module
|
|
|
|
|
|
def build_suite(app_module):
|
|
"""
|
|
Create a complete Django test suite for the provided application module.
|
|
"""
|
|
suite = unittest.TestSuite()
|
|
|
|
# Load unit and doctests in the models.py module. If module has
|
|
# a suite() method, use it. Otherwise build the test suite ourselves.
|
|
if hasattr(app_module, 'suite'):
|
|
suite.addTest(app_module.suite())
|
|
else:
|
|
suite.addTest(unittest.defaultTestLoader.loadTestsFromModule(
|
|
app_module))
|
|
try:
|
|
suite.addTest(doctest.DocTestSuite(app_module,
|
|
checker=doctestOutputChecker,
|
|
runner=DocTestRunner))
|
|
except ValueError:
|
|
# No doc tests in models.py
|
|
pass
|
|
|
|
# Check to see if a separate 'tests' module exists parallel to the
|
|
# models module
|
|
test_module = get_tests(app_module)
|
|
if test_module:
|
|
# Load unit and doctests in the tests.py module. If module has
|
|
# a suite() method, use it. Otherwise build the test suite ourselves.
|
|
if hasattr(test_module, 'suite'):
|
|
suite.addTest(test_module.suite())
|
|
else:
|
|
suite.addTest(unittest.defaultTestLoader.loadTestsFromModule(
|
|
test_module))
|
|
try:
|
|
suite.addTest(doctest.DocTestSuite(
|
|
test_module, checker=doctestOutputChecker,
|
|
runner=DocTestRunner))
|
|
except ValueError:
|
|
# No doc tests in tests.py
|
|
pass
|
|
return suite
|
|
|
|
|
|
def build_test(label):
|
|
"""
|
|
Construct a test case with the specified label. Label should be of the
|
|
form model.TestClass or model.TestClass.test_method. Returns an
|
|
instantiated test or test suite corresponding to the label provided.
|
|
|
|
"""
|
|
parts = label.split('.')
|
|
if len(parts) < 2 or len(parts) > 3:
|
|
raise ValueError("Test label '%s' should be of the form app.TestCase "
|
|
"or app.TestCase.test_method" % label)
|
|
|
|
#
|
|
# First, look for TestCase instances with a name that matches
|
|
#
|
|
app_module = get_app(parts[0])
|
|
test_module = get_tests(app_module)
|
|
TestClass = getattr(app_module, parts[1], None)
|
|
|
|
# Couldn't find the test class in models.py; look in tests.py
|
|
if TestClass is None:
|
|
if test_module:
|
|
TestClass = getattr(test_module, parts[1], None)
|
|
|
|
try:
|
|
if issubclass(TestClass, (unittest.TestCase, real_unittest.TestCase)):
|
|
if len(parts) == 2: # label is app.TestClass
|
|
try:
|
|
return unittest.TestLoader().loadTestsFromTestCase(
|
|
TestClass)
|
|
except TypeError:
|
|
raise ValueError(
|
|
"Test label '%s' does not refer to a test class"
|
|
% label)
|
|
else: # label is app.TestClass.test_method
|
|
return TestClass(parts[2])
|
|
except TypeError:
|
|
# TestClass isn't a TestClass - it must be a method or normal class
|
|
pass
|
|
|
|
#
|
|
# If there isn't a TestCase, look for a doctest that matches
|
|
#
|
|
tests = []
|
|
for module in app_module, test_module:
|
|
try:
|
|
doctests = doctest.DocTestSuite(module,
|
|
checker=doctestOutputChecker,
|
|
runner=DocTestRunner)
|
|
# Now iterate over the suite, looking for doctests whose name
|
|
# matches the pattern that was given
|
|
for test in doctests:
|
|
if test._dt_test.name in (
|
|
'%s.%s' % (module.__name__, '.'.join(parts[1:])),
|
|
'%s.__test__.%s' % (
|
|
module.__name__, '.'.join(parts[1:]))):
|
|
tests.append(test)
|
|
except ValueError:
|
|
# No doctests found.
|
|
pass
|
|
|
|
# If no tests were found, then we were given a bad test label.
|
|
if not tests:
|
|
raise ValueError("Test label '%s' does not refer to a test" % label)
|
|
|
|
# Construct a suite out of the tests that matched.
|
|
return unittest.TestSuite(tests)
|
|
|
|
|
|
def partition_suite(suite, classes, bins):
|
|
"""
|
|
Partitions a test suite by test type.
|
|
|
|
classes is a sequence of types
|
|
bins is a sequence of TestSuites, one more than classes
|
|
|
|
Tests of type classes[i] are added to bins[i],
|
|
tests with no match found in classes are place in bins[-1]
|
|
"""
|
|
for test in suite:
|
|
if isinstance(test, unittest.TestSuite):
|
|
partition_suite(test, classes, bins)
|
|
else:
|
|
for i in range(len(classes)):
|
|
if isinstance(test, classes[i]):
|
|
bins[i].addTest(test)
|
|
break
|
|
else:
|
|
bins[-1].addTest(test)
|
|
|
|
|
|
def reorder_suite(suite, classes):
|
|
"""
|
|
Reorders a test suite by test type.
|
|
|
|
`classes` is a sequence of types
|
|
|
|
All tests of type classes[0] are placed first, then tests of type
|
|
classes[1], etc. Tests with no match in classes are placed last.
|
|
"""
|
|
class_count = len(classes)
|
|
bins = [unittest.TestSuite() for i in range(class_count+1)]
|
|
partition_suite(suite, classes, bins)
|
|
for i in range(class_count):
|
|
bins[0].addTests(bins[i+1])
|
|
return bins[0]
|
|
|
|
|
|
def dependency_ordered(test_databases, dependencies):
|
|
"""
|
|
Reorder test_databases into an order that honors the dependencies
|
|
described in TEST_DEPENDENCIES.
|
|
"""
|
|
ordered_test_databases = []
|
|
resolved_databases = set()
|
|
|
|
# Maps db signature to dependencies of all it's aliases
|
|
dependencies_map = {}
|
|
|
|
# sanity check - no DB can depend on it's own alias
|
|
for sig, (_, aliases) in test_databases:
|
|
all_deps = set()
|
|
for alias in aliases:
|
|
all_deps.update(dependencies.get(alias, []))
|
|
if not all_deps.isdisjoint(aliases):
|
|
raise ImproperlyConfigured(
|
|
"Circular dependency: databases %r depend on each other, "
|
|
"but are aliases." % aliases)
|
|
dependencies_map[sig] = all_deps
|
|
|
|
while test_databases:
|
|
changed = False
|
|
deferred = []
|
|
|
|
# Try to find a DB that has all it's dependencies met
|
|
for signature, (db_name, aliases) in test_databases:
|
|
if dependencies_map[signature].issubset(resolved_databases):
|
|
resolved_databases.update(aliases)
|
|
ordered_test_databases.append((signature, (db_name, aliases)))
|
|
changed = True
|
|
else:
|
|
deferred.append((signature, (db_name, aliases)))
|
|
|
|
if not changed:
|
|
raise ImproperlyConfigured(
|
|
"Circular dependency in TEST_DEPENDENCIES")
|
|
test_databases = deferred
|
|
return ordered_test_databases
|
|
|
|
|
|
class DjangoTestSuiteRunner(object):
|
|
def __init__(self, verbosity=1, interactive=True, failfast=True, **kwargs):
|
|
self.verbosity = verbosity
|
|
self.interactive = interactive
|
|
self.failfast = failfast
|
|
|
|
def setup_test_environment(self, **kwargs):
|
|
setup_test_environment()
|
|
settings.DEBUG = False
|
|
unittest.installHandler()
|
|
|
|
def build_suite(self, test_labels, extra_tests=None, **kwargs):
|
|
suite = unittest.TestSuite()
|
|
|
|
if test_labels:
|
|
for label in test_labels:
|
|
if '.' in label:
|
|
suite.addTest(build_test(label))
|
|
else:
|
|
app = get_app(label)
|
|
suite.addTest(build_suite(app))
|
|
else:
|
|
for app in get_apps():
|
|
suite.addTest(build_suite(app))
|
|
|
|
if extra_tests:
|
|
for test in extra_tests:
|
|
suite.addTest(test)
|
|
|
|
return reorder_suite(suite, (TestCase,))
|
|
|
|
def setup_databases(self, **kwargs):
|
|
from django.db import connections, DEFAULT_DB_ALIAS
|
|
|
|
# First pass -- work out which databases actually need to be created,
|
|
# and which ones are test mirrors or duplicate entries in DATABASES
|
|
mirrored_aliases = {}
|
|
test_databases = {}
|
|
dependencies = {}
|
|
for alias in connections:
|
|
connection = connections[alias]
|
|
if connection.settings_dict['TEST_MIRROR']:
|
|
# If the database is marked as a test mirror, save
|
|
# the alias.
|
|
mirrored_aliases[alias] = (
|
|
connection.settings_dict['TEST_MIRROR'])
|
|
else:
|
|
# Store a tuple with DB parameters that uniquely identify it.
|
|
# If we have two aliases with the same values for that tuple,
|
|
# we only need to create the test database once.
|
|
item = test_databases.setdefault(
|
|
connection.creation.test_db_signature(),
|
|
(connection.settings_dict['NAME'], set())
|
|
)
|
|
item[1].add(alias)
|
|
|
|
if 'TEST_DEPENDENCIES' in connection.settings_dict:
|
|
dependencies[alias] = (
|
|
connection.settings_dict['TEST_DEPENDENCIES'])
|
|
else:
|
|
if alias != DEFAULT_DB_ALIAS:
|
|
dependencies[alias] = connection.settings_dict.get(
|
|
'TEST_DEPENDENCIES', [DEFAULT_DB_ALIAS])
|
|
|
|
# Second pass -- actually create the databases.
|
|
old_names = []
|
|
mirrors = []
|
|
|
|
for signature, (db_name, aliases) in dependency_ordered(
|
|
test_databases.items(), dependencies):
|
|
test_db_name = None
|
|
# Actually create the database for the first connection
|
|
|
|
for alias in aliases:
|
|
connection = connections[alias]
|
|
old_names.append((connection, db_name, True))
|
|
if test_db_name is None:
|
|
test_db_name = connection.creation.create_test_db(
|
|
self.verbosity, autoclobber=not self.interactive)
|
|
else:
|
|
connection.settings_dict['NAME'] = test_db_name
|
|
|
|
for alias, mirror_alias in mirrored_aliases.items():
|
|
mirrors.append((alias, connections[alias].settings_dict['NAME']))
|
|
connections[alias].settings_dict['NAME'] = (
|
|
connections[mirror_alias].settings_dict['NAME'])
|
|
connections[alias].features = connections[mirror_alias].features
|
|
|
|
return old_names, mirrors
|
|
|
|
def run_suite(self, suite, **kwargs):
|
|
return unittest.TextTestRunner(
|
|
verbosity=self.verbosity, failfast=self.failfast).run(suite)
|
|
|
|
def teardown_databases(self, old_config, **kwargs):
|
|
"""
|
|
Destroys all the non-mirror databases.
|
|
"""
|
|
old_names, mirrors = old_config
|
|
for connection, old_name, destroy in old_names:
|
|
if destroy:
|
|
connection.creation.destroy_test_db(old_name, self.verbosity)
|
|
|
|
def teardown_test_environment(self, **kwargs):
|
|
unittest.removeHandler()
|
|
teardown_test_environment()
|
|
|
|
def suite_result(self, suite, result, **kwargs):
|
|
return len(result.failures) + len(result.errors)
|
|
|
|
def run_tests(self, test_labels, extra_tests=None, **kwargs):
|
|
"""
|
|
Run the unit tests for all the test labels in the provided list.
|
|
Labels must be of the form:
|
|
- app.TestClass.test_method
|
|
Run a single specific test method
|
|
- app.TestClass
|
|
Run all the test methods in a given class
|
|
- app
|
|
Search for doctests and unittests in the named application.
|
|
|
|
When looking for tests, the test runner will look in the models and
|
|
tests modules for the application.
|
|
|
|
A list of 'extra' tests may also be provided; these tests
|
|
will be added to the test suite.
|
|
|
|
Returns the number of tests that failed.
|
|
"""
|
|
self.setup_test_environment()
|
|
suite = self.build_suite(test_labels, extra_tests)
|
|
old_config = self.setup_databases()
|
|
result = self.run_suite(suite)
|
|
self.teardown_databases(old_config)
|
|
self.teardown_test_environment()
|
|
return self.suite_result(suite, result)
|