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# -*- coding: utf-8 -*-
"""
flask.testsuite.ext
~~~~~~~~~~~~~~~~~~~
Tests the extension import thing.
:copyright: (c) 2011 by Armin Ronacher.
:license: BSD, see LICENSE for more details.
"""
from __future__ import with_statement
import sys
import unittest
from flask.testsuite import FlaskTestCase
class ExtImportHookTestCase(FlaskTestCase):
def setup(self):
# we clear this out for various reasons. The most important one is
# that a real flaskext could be in there which would disable our
# fake package. Secondly we want to make sure that the flaskext
# import hook does not break on reloading.
for entry, value in sys.modules.items():
if (entry.startswith('flask.ext.') or
entry.startswith('flask_') or
entry.startswith('flaskext.') or
entry == 'flaskext') and value is not None:
sys.modules.pop(entry, None)
from flask import ext
reload(ext)
# reloading must not add more hooks
import_hooks = 0
for item in sys.meta_path:
cls = type(item)
if cls.__module__ == 'flask.exthook' and \
cls.__name__ == 'ExtensionImporter':
import_hooks += 1
self.assert_equal(import_hooks, 1)
def teardown(self):
from flask import ext
for key in ext.__dict__:
self.assert_('.' not in key)
def test_flaskext_new_simple_import_normal(self):
from flask.ext.newext_simple import ext_id
self.assert_equal(ext_id, 'newext_simple')
def test_flaskext_new_simple_import_module(self):
from flask.ext import newext_simple
self.assert_equal(newext_simple.ext_id, 'newext_simple')
self.assert_equal(newext_simple.__name__, 'flask_newext_simple')
def test_flaskext_new_package_import_normal(self):
from flask.ext.newext_package import ext_id
self.assert_equal(ext_id, 'newext_package')
def test_flaskext_new_package_import_module(self):
from flask.ext import newext_package
self.assert_equal(newext_package.ext_id, 'newext_package')
self.assert_equal(newext_package.__name__, 'flask_newext_package')
def test_flaskext_new_package_import_submodule_function(self):
from flask.ext.newext_package.submodule import test_function
self.assert_equal(test_function(), 42)
def test_flaskext_new_package_import_submodule(self):
from flask.ext.newext_package import submodule
self.assert_equal(submodule.__name__, 'flask_newext_package.submodule')
self.assert_equal(submodule.test_function(), 42)
def test_flaskext_old_simple_import_normal(self):
from flask.ext.oldext_simple import ext_id
self.assert_equal(ext_id, 'oldext_simple')
def test_flaskext_old_simple_import_module(self):
from flask.ext import oldext_simple
self.assert_equal(oldext_simple.ext_id, 'oldext_simple')
self.assert_equal(oldext_simple.__name__, 'flaskext.oldext_simple')
def test_flaskext_old_package_import_normal(self):
from flask.ext.oldext_package import ext_id
self.assert_equal(ext_id, 'oldext_package')
def test_flaskext_old_package_import_module(self):
from flask.ext import oldext_package
self.assert_equal(oldext_package.ext_id, 'oldext_package')
self.assert_equal(oldext_package.__name__, 'flaskext.oldext_package')
def test_flaskext_old_package_import_submodule(self):
from flask.ext.oldext_package import submodule
self.assert_equal(submodule.__name__, 'flaskext.oldext_package.submodule')
self.assert_equal(submodule.test_function(), 42)
def test_flaskext_old_package_import_submodule_function(self):
from flask.ext.oldext_package.submodule import test_function
self.assert_equal(test_function(), 42)
def test_flaskext_broken_package_no_module_caching(self):
for x in xrange(2):
with self.assert_raises(ImportError):
import flask.ext.broken
def test_no_error_swallowing(self):
try:
import flask.ext.broken
except ImportError:
exc_type, exc_value, tb = sys.exc_info()
self.assert_(exc_type is ImportError)
self.assert_equal(str(exc_value), 'No module named missing_module')
self.assert_(tb.tb_frame.f_globals is globals())
next = tb.tb_next
self.assert_('flask_broken/__init__.py' in next.tb_frame.f_code.co_filename)
def suite():
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(ExtImportHookTestCase))
return suite
|
