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test_django_settings_module.py
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test_django_settings_module.py
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"""Tests which check the various ways you can set DJANGO_SETTINGS_MODULE
If these tests fail you probably forgot to run "python setup.py develop".
"""
import django
import pytest
BARE_SETTINGS = '''
# At least one database must be configured
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': ':memory:'
},
}
SECRET_KEY = 'foobar'
'''
def test_ds_env(testdir, monkeypatch):
monkeypatch.setenv('DJANGO_SETTINGS_MODULE', 'tpkg.settings_env')
pkg = testdir.mkpydir('tpkg')
settings = pkg.join('settings_env.py')
settings.write(BARE_SETTINGS)
testdir.makepyfile("""
import os
def test_settings():
assert os.environ['DJANGO_SETTINGS_MODULE'] == 'tpkg.settings_env'
""")
result = testdir.runpytest()
result.stdout.fnmatch_lines(['*1 passed*'])
assert result.ret == 0
def test_ds_ini(testdir, monkeypatch):
monkeypatch.setenv('DJANGO_SETTINGS_MODULE', 'DO_NOT_USE')
testdir.makeini("""\
[pytest]
DJANGO_SETTINGS_MODULE = tpkg.settings_ini
""")
pkg = testdir.mkpydir('tpkg')
settings = pkg.join('settings_ini.py')
settings.write(BARE_SETTINGS)
testdir.makepyfile("""
import os
def test_ds():
assert os.environ['DJANGO_SETTINGS_MODULE'] == 'tpkg.settings_ini'
""")
result = testdir.runpytest()
result.stdout.fnmatch_lines(['*1 passed*'])
assert result.ret == 0
def test_ds_option(testdir, monkeypatch):
monkeypatch.setenv('DJANGO_SETTINGS_MODULE', 'DO_NOT_USE_env')
testdir.makeini("""
[pytest]
DJANGO_SETTINGS_MODULE = DO_NOT_USE_ini
""")
pkg = testdir.mkpydir('tpkg')
settings = pkg.join('settings_opt.py')
settings.write(BARE_SETTINGS)
testdir.makepyfile("""
import os
def test_ds():
assert os.environ['DJANGO_SETTINGS_MODULE'] == 'tpkg.settings_opt'
""")
result = testdir.runpytest('--ds=tpkg.settings_opt')
result.stdout.fnmatch_lines(['*1 passed*'])
assert result.ret == 0
def test_ds_non_existent(testdir, monkeypatch):
"""
Make sure we do not fail with INTERNALERROR if an incorrect
DJANGO_SETTINGS_MODULE is given.
"""
monkeypatch.setenv('DJANGO_SETTINGS_MODULE', 'DOES_NOT_EXIST')
testdir.makepyfile('def test_ds(): pass')
result = testdir.runpytest()
result.stderr.fnmatch_lines(["*ImportError:*DOES_NOT_EXIST*"])
assert result.ret != 0
def test_ds_after_user_conftest(testdir, monkeypatch):
"""
Test that the settings module can be imported, after pytest has adjusted
the sys.path.
"""
monkeypatch.setenv('DJANGO_SETTINGS_MODULE', 'settings_after_conftest')
testdir.makepyfile('def test_ds(): pass')
testdir.makepyfile(settings_after_conftest="SECRET_KEY='secret'")
# testdir.makeconftest("import sys; print(sys.path)")
result = testdir.runpytest('-v')
result.stdout.fnmatch_lines(['*1 passed*'])
assert result.ret == 0
def test_ds_in_pytest_configure(testdir, monkeypatch):
monkeypatch.delenv('DJANGO_SETTINGS_MODULE')
pkg = testdir.mkpydir('tpkg')
settings = pkg.join('settings_ds.py')
settings.write(BARE_SETTINGS)
testdir.makeconftest("""
import os
from django.conf import settings
def pytest_configure():
if not settings.configured:
os.environ.setdefault('DJANGO_SETTINGS_MODULE',
'tpkg.settings_ds')
""")
r = testdir.runpytest()
assert r.ret == 0
def test_django_settings_configure(testdir, monkeypatch):
"""
Make sure Django can be configured without setting
DJANGO_SETTINGS_MODULE altogether, relying on calling
django.conf.settings.configure() and then invoking pytest.
"""
monkeypatch.delenv('DJANGO_SETTINGS_MODULE')
p = testdir.makepyfile(run="""
from django.conf import settings
settings.configure(SECRET_KEY='set from settings.configure()',
DATABASES={'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': ':memory:'
}},
INSTALLED_APPS=['django.contrib.auth',
'django.contrib.contenttypes',])
import pytest
pytest.main()
""")
testdir.makepyfile("""
import pytest
from django.conf import settings
from django.test.client import RequestFactory
from django.test import TestCase
from django.contrib.auth.models import User
def test_access_to_setting():
assert settings.SECRET_KEY == 'set from settings.configure()'
# This test requires Django to be properly configured to be run
def test_rf(rf):
assert isinstance(rf, RequestFactory)
# This tests that pytest-django actually configures the database
# according to the settings above
class ATestCase(TestCase):
def test_user_count(self):
assert User.objects.count() == 0
@pytest.mark.django_db
def test_user_count():
assert User.objects.count() == 0
""")
result = testdir.runpython(p)
result.stdout.fnmatch_lines([
"*4 passed*",
])
def test_settings_in_hook(testdir, monkeypatch):
monkeypatch.delenv('DJANGO_SETTINGS_MODULE')
testdir.makeconftest("""
from django.conf import settings
def pytest_configure():
settings.configure(SECRET_KEY='set from pytest_configure',
DATABASES={'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': ':memory:'}},
INSTALLED_APPS=['django.contrib.auth',
'django.contrib.contenttypes',])
""")
testdir.makepyfile("""
import pytest
from django.conf import settings
from django.contrib.auth.models import User
def test_access_to_setting():
assert settings.SECRET_KEY == 'set from pytest_configure'
@pytest.mark.django_db
def test_user_count():
assert User.objects.count() == 0
""")
r = testdir.runpytest()
assert r.ret == 0
def test_django_not_loaded_without_settings(testdir, monkeypatch):
"""
Make sure Django is not imported at all if no Django settings is specified.
"""
monkeypatch.delenv('DJANGO_SETTINGS_MODULE')
testdir.makepyfile("""
import sys
def test_settings():
assert 'django' not in sys.modules
""")
result = testdir.runpytest()
result.stdout.fnmatch_lines(['*1 passed*'])
assert result.ret == 0
def test_debug_false(testdir, monkeypatch):
monkeypatch.delenv('DJANGO_SETTINGS_MODULE')
testdir.makeconftest("""
from django.conf import settings
def pytest_configure():
settings.configure(SECRET_KEY='set from pytest_configure',
DEBUG=True,
DATABASES={'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': ':memory:'}},
INSTALLED_APPS=['django.contrib.auth',
'django.contrib.contenttypes',])
""")
testdir.makepyfile("""
from django.conf import settings
def test_debug_is_false():
assert settings.DEBUG is False
""")
r = testdir.runpytest()
assert r.ret == 0
def test_debug_no_force(testdir, monkeypatch):
monkeypatch.delenv('DJANGO_SETTINGS_MODULE')
testdir.makeconftest("""
from django.conf import settings
def pytest_configure():
settings.configure(SECRET_KEY='set from pytest_configure',
DEBUG=True,
DATABASES={'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': ':memory:'}},
INSTALLED_APPS=['django.contrib.auth',
'django.contrib.contenttypes',])
""")
testdir.makepyfile("""
from django.conf import settings
def test_debug_is_true():
assert settings.DEBUG is True
""")
r = testdir.runpytest('--no-force-no-debug')
assert r.ret == 0
@pytest.mark.skipif(not hasattr(django, 'setup'),
reason="This Django version does not support app loading")
@pytest.mark.django_project(extra_settings="""
INSTALLED_APPS = [
'tpkg.app.apps.TestApp',
]
""")
def test_django_setup_sequence(django_testdir):
django_testdir.create_app_file("""
from django.apps import apps, AppConfig
class TestApp(AppConfig):
name = 'tpkg.app'
def ready(self):
print ('READY(): populating=%r' % apps._lock.locked())
""", 'apps.py')
django_testdir.create_app_file("""
from django.apps import apps
print ('IMPORT: populating=%r,ready=%r' % (
apps._lock.locked(), apps.ready))
SOME_THING = 1234
""", 'models.py')
django_testdir.create_app_file("", '__init__.py')
django_testdir.makepyfile("""
from django.apps import apps
from tpkg.app.models import SOME_THING
def test_anything():
print ('TEST: populating=%r,ready=%r' % (
apps._lock.locked(), apps.ready))
""")
result = django_testdir.runpytest('-s', '--tb=line')
result.stdout.fnmatch_lines(['*IMPORT: populating=True,ready=False*'])
result.stdout.fnmatch_lines(['*READY(): populating=True*'])
result.stdout.fnmatch_lines(['*TEST: populating=False,ready=True*'])
assert result.ret == 0
def test_no_ds_but_django_imported(testdir, monkeypatch):
"""pytest-django should not bail out, if "django" has been imported
somewhere, e.g. via pytest-splinter."""
monkeypatch.delenv('DJANGO_SETTINGS_MODULE')
testdir.makepyfile("""
import os
import django
from pytest_django.lazy_django import django_settings_is_configured
def test_django_settings_is_configured():
assert django_settings_is_configured() is False
def test_env():
assert 'DJANGO_SETTINGS_MODULE' not in os.environ
def test_cfg(pytestconfig):
assert pytestconfig.option.ds is None
""")
r = testdir.runpytest('-s')
assert r.ret == 0