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import os
import pytest
import flask
def test_explicit_instance_paths(modules_tmp_path):
with pytest.raises(ValueError, match=".*must be absolute"):
flask.Flask(__name__, instance_path="instance")
app = flask.Flask(__name__, instance_path=os.fspath(modules_tmp_path))
assert app.instance_path == os.fspath(modules_tmp_path)
def test_uninstalled_module_paths(modules_tmp_path, purge_module):
(modules_tmp_path / "config_module_app.py").write_text(
"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 == os.fspath(modules_tmp_path / "instance")
def test_uninstalled_package_paths(modules_tmp_path, purge_module):
app = modules_tmp_path / "config_package_app"
app.mkdir()
(app / "__init__.py").write_text(
"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 == os.fspath(modules_tmp_path / "instance")
def test_uninstalled_namespace_paths(tmp_path, monkeypatch, purge_module):
def create_namespace(package):
project = tmp_path / f"project-{package}"
monkeypatch.syspath_prepend(os.fspath(project))
ns = project / "namespace" / package
ns.mkdir(parents=True)
(ns / "__init__.py").write_text("import flask\napp = flask.Flask(__name__)\n")
return project
_ = create_namespace("package1")
project2 = create_namespace("package2")
purge_module("namespace.package2")
purge_module("namespace")
from namespace.package2 import app
assert app.instance_path == os.fspath(project2 / "instance")
def test_installed_module_paths(
modules_tmp_path, modules_tmp_path_prefix, purge_module, site_packages
):
(site_packages / "site_app.py").write_text(
"import flask\napp = flask.Flask(__name__)\n"
)
purge_module("site_app")
from site_app import app
assert app.instance_path == os.fspath(
modules_tmp_path / "var" / "site_app-instance"
)
def test_installed_package_paths(
modules_tmp_path, modules_tmp_path_prefix, purge_module, monkeypatch
):
installed_path = modules_tmp_path / "path"
installed_path.mkdir()
monkeypatch.syspath_prepend(installed_path)
app = installed_path / "installed_package"
app.mkdir()
(app / "__init__.py").write_text("import flask\napp = flask.Flask(__name__)\n")
purge_module("installed_package")
from installed_package import app
assert app.instance_path == os.fspath(
modules_tmp_path / "var" / "installed_package-instance"
)
def test_prefix_package_paths(
modules_tmp_path, modules_tmp_path_prefix, purge_module, site_packages
):
app = site_packages / "site_package"
app.mkdir()
(app / "__init__.py").write_text("import flask\napp = flask.Flask(__name__)\n")
purge_module("site_package")
import site_package
assert site_package.app.instance_path == os.fspath(
modules_tmp_path / "var" / "site_package-instance"
)
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