flask/tests/test_instance_config.py

144 lines
4.1 KiB
Python

# -*- coding: utf-8 -*-
"""
tests.test_instance
~~~~~~~~~~~~~~~~~~~
:copyright: © 2010 by the Pallets team.
:license: BSD, see LICENSE for more details.
"""
import os
import sys
import pytest
import flask
from flask._compat import PY2
def test_explicit_instance_paths(modules_tmpdir):
with pytest.raises(ValueError) as excinfo:
flask.Flask(__name__, instance_path="instance")
assert "must be absolute" in str(excinfo.value)
app = flask.Flask(__name__, instance_path=str(modules_tmpdir))
assert app.instance_path == str(modules_tmpdir)
def test_main_module_paths(modules_tmpdir, purge_module):
app = modules_tmpdir.join("main_app.py")
app.write('import flask\n\napp = flask.Flask("__main__")')
purge_module("main_app")
from main_app import app
here = os.path.abspath(os.getcwd())
assert app.instance_path == os.path.join(here, "instance")
def test_uninstalled_module_paths(modules_tmpdir, purge_module):
app = modules_tmpdir.join("config_module_app.py").write(
"import os\n"
"import flask\n"
"here = os.path.abspath(os.path.dirname(__file__))\n"
"app = flask.Flask(__name__)\n"
)
purge_module("config_module_app")
from config_module_app import app
assert app.instance_path == str(modules_tmpdir.join("instance"))
def test_uninstalled_package_paths(modules_tmpdir, purge_module):
app = modules_tmpdir.mkdir("config_package_app")
init = app.join("__init__.py")
init.write(
"import os\n"
"import flask\n"
"here = os.path.abspath(os.path.dirname(__file__))\n"
"app = flask.Flask(__name__)\n"
)
purge_module("config_package_app")
from config_package_app import app
assert app.instance_path == str(modules_tmpdir.join("instance"))
def test_installed_module_paths(
modules_tmpdir, modules_tmpdir_prefix, purge_module, site_packages, limit_loader
):
site_packages.join("site_app.py").write(
"import flask\n" "app = flask.Flask(__name__)\n"
)
purge_module("site_app")
from site_app import app
assert app.instance_path == modules_tmpdir.join("var").join("site_app-instance")
def test_installed_package_paths(
limit_loader, modules_tmpdir, modules_tmpdir_prefix, purge_module, monkeypatch
):
installed_path = modules_tmpdir.mkdir("path")
monkeypatch.syspath_prepend(installed_path)
app = installed_path.mkdir("installed_package")
init = app.join("__init__.py")
init.write("import flask\napp = flask.Flask(__name__)")
purge_module("installed_package")
from installed_package import app
assert app.instance_path == modules_tmpdir.join("var").join(
"installed_package-instance"
)
def test_prefix_package_paths(
limit_loader, modules_tmpdir, modules_tmpdir_prefix, purge_module, site_packages
):
app = site_packages.mkdir("site_package")
init = app.join("__init__.py")
init.write("import flask\napp = flask.Flask(__name__)")
purge_module("site_package")
import site_package
assert site_package.app.instance_path == modules_tmpdir.join("var").join(
"site_package-instance"
)
def test_egg_installed_paths(install_egg, modules_tmpdir, modules_tmpdir_prefix):
modules_tmpdir.mkdir("site_egg").join("__init__.py").write(
"import flask\n\napp = flask.Flask(__name__)"
)
install_egg("site_egg")
try:
import site_egg
assert site_egg.app.instance_path == str(
modules_tmpdir.join("var/").join("site_egg-instance")
)
finally:
if "site_egg" in sys.modules:
del sys.modules["site_egg"]
@pytest.mark.skipif(not PY2, reason="This only works under Python 2.")
def test_meta_path_loader_without_is_package(request, modules_tmpdir):
app = modules_tmpdir.join("unimportable.py")
app.write("import flask\napp = flask.Flask(__name__)")
class Loader(object):
def find_module(self, name, path=None):
return self
sys.meta_path.append(Loader())
request.addfinalizer(sys.meta_path.pop)
with pytest.raises(AttributeError):
import unimportable # noqa: F401