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from django.core.checks.compatibility import base
from django.core.checks.compatibility import django_1_6_0
from django.core.management.commands import check
from django.core.management import call_command
from django.db.models.fields import NOT_PROVIDED
from django.test import TestCase
from .models import Book
class StubCheckModule(object):
# Has no ``run_checks`` attribute & will trigger a warning.
__name__ = 'StubCheckModule'
class FakeWarnings(object):
def __init__(self):
self._warnings = []
def warn(self, message):
self._warnings.append(message)
class CompatChecksTestCase(TestCase):
def setUp(self):
super(CompatChecksTestCase, self).setUp()
# We're going to override the list of checks to perform for test
# consistency in the future.
self.old_compat_checks = base.COMPAT_CHECKS
base.COMPAT_CHECKS = [
django_1_6_0,
]
def tearDown(self):
# Restore what's supposed to be in ``COMPAT_CHECKS``.
base.COMPAT_CHECKS = self.old_compat_checks
super(CompatChecksTestCase, self).tearDown()
def test_check_test_runner_new_default(self):
with self.settings(TEST_RUNNER='django.test.runner.DiscoverRunner'):
result = django_1_6_0.check_test_runner()
self.assertTrue("Django 1.6 introduced a new default test runner" in result)
def test_check_test_runner_overridden(self):
with self.settings(TEST_RUNNER='myapp.test.CustomRunnner'):
self.assertEqual(django_1_6_0.check_test_runner(), None)
def test_run_checks_new_default(self):
with self.settings(TEST_RUNNER='django.test.runner.DiscoverRunner'):
result = django_1_6_0.run_checks()
self.assertEqual(len(result), 1)
self.assertTrue("Django 1.6 introduced a new default test runner" in result[0])
def test_run_checks_overridden(self):
with self.settings(TEST_RUNNER='myapp.test.CustomRunnner'):
self.assertEqual(len(django_1_6_0.run_checks()), 0)
def test_boolean_field_default_value(self):
with self.settings(TEST_RUNNER='myapp.test.CustomRunnner'):
# We patch the field's default value to trigger the warning
boolean_field = Book._meta.get_field('is_published')
old_default = boolean_field.default
try:
boolean_field.default = NOT_PROVIDED
result = django_1_6_0.run_checks()
self.assertEqual(len(result), 1)
self.assertTrue("You have not set a default value for one or more BooleanFields" in result[0])
self.assertTrue('check.Book: "is_published"' in result[0])
# We did not patch the BlogPost.is_published field so
# there should not be a warning about it
self.assertFalse('check.BlogPost' in result[0])
finally:
# Restore the ``default``
boolean_field.default = old_default
def test_check_compatibility(self):
with self.settings(TEST_RUNNER='django.test.runner.DiscoverRunner'):
result = base.check_compatibility()
self.assertEqual(len(result), 1)
self.assertTrue("Django 1.6 introduced a new default test runner" in result[0])
with self.settings(TEST_RUNNER='myapp.test.CustomRunnner'):
self.assertEqual(len(base.check_compatibility()), 0)
def test_check_compatibility_warning(self):
# First, we're patching over the ``COMPAT_CHECKS`` with a stub which
# will trigger the warning.
base.COMPAT_CHECKS = [
StubCheckModule(),
]
# Next, we unfortunately have to patch out ``warnings``.
old_warnings = base.warnings
base.warnings = FakeWarnings()
self.assertEqual(len(base.warnings._warnings), 0)
with self.settings(TEST_RUNNER='myapp.test.CustomRunnner'):
self.assertEqual(len(base.check_compatibility()), 0)
self.assertEqual(len(base.warnings._warnings), 1)
self.assertTrue("The 'StubCheckModule' module lacks a 'run_checks'" in base.warnings._warnings[0])
# Restore the ``warnings``.
base.warnings = old_warnings
def test_management_command(self):
# Again, we unfortunately have to patch out ``warnings``. Different
old_warnings = check.warnings
check.warnings = FakeWarnings()
self.assertEqual(len(check.warnings._warnings), 0)
# Should not produce any warnings.
with self.settings(TEST_RUNNER='myapp.test.CustomRunnner'):
call_command('check')
self.assertEqual(len(check.warnings._warnings), 0)
with self.settings(TEST_RUNNER='django.test.runner.DiscoverRunner'):
call_command('check')
self.assertEqual(len(check.warnings._warnings), 1)
self.assertTrue("Django 1.6 introduced a new default test runner" in check.warnings._warnings[0])
# Restore the ``warnings``.
base.warnings = old_warnings
|
