135 lines
5 KiB
Python
135 lines
5 KiB
Python
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# -*- coding: utf-8 -*-
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"""
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flask.testsuite.ext
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~~~~~~~~~~~~~~~~~~~
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Tests the extension import thing.
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:copyright: (c) 2011 by Armin Ronacher.
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:license: BSD, see LICENSE for more details.
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"""
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import sys
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import unittest
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try:
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from imp import reload as reload_module
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except ImportError:
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reload_module = reload
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from flask.testsuite import FlaskTestCase
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from flask._compat import PY2
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class ExtImportHookTestCase(FlaskTestCase):
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def setup(self):
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# we clear this out for various reasons. The most important one is
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# that a real flaskext could be in there which would disable our
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# fake package. Secondly we want to make sure that the flaskext
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# import hook does not break on reloading.
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for entry, value in list(sys.modules.items()):
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if (entry.startswith('flask.ext.') or
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entry.startswith('flask_') or
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entry.startswith('flaskext.') or
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entry == 'flaskext') and value is not None:
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sys.modules.pop(entry, None)
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from flask import ext
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reload_module(ext)
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# reloading must not add more hooks
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import_hooks = 0
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for item in sys.meta_path:
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cls = type(item)
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if cls.__module__ == 'flask.exthook' and \
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cls.__name__ == 'ExtensionImporter':
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import_hooks += 1
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self.assert_equal(import_hooks, 1)
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def teardown(self):
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from flask import ext
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for key in ext.__dict__:
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self.assert_not_in('.', key)
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def test_flaskext_new_simple_import_normal(self):
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from flask.ext.newext_simple import ext_id
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self.assert_equal(ext_id, 'newext_simple')
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def test_flaskext_new_simple_import_module(self):
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from flask.ext import newext_simple
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self.assert_equal(newext_simple.ext_id, 'newext_simple')
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self.assert_equal(newext_simple.__name__, 'flask_newext_simple')
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def test_flaskext_new_package_import_normal(self):
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from flask.ext.newext_package import ext_id
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self.assert_equal(ext_id, 'newext_package')
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def test_flaskext_new_package_import_module(self):
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from flask.ext import newext_package
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self.assert_equal(newext_package.ext_id, 'newext_package')
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self.assert_equal(newext_package.__name__, 'flask_newext_package')
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def test_flaskext_new_package_import_submodule_function(self):
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from flask.ext.newext_package.submodule import test_function
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self.assert_equal(test_function(), 42)
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def test_flaskext_new_package_import_submodule(self):
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from flask.ext.newext_package import submodule
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self.assert_equal(submodule.__name__, 'flask_newext_package.submodule')
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self.assert_equal(submodule.test_function(), 42)
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def test_flaskext_old_simple_import_normal(self):
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from flask.ext.oldext_simple import ext_id
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self.assert_equal(ext_id, 'oldext_simple')
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def test_flaskext_old_simple_import_module(self):
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from flask.ext import oldext_simple
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self.assert_equal(oldext_simple.ext_id, 'oldext_simple')
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self.assert_equal(oldext_simple.__name__, 'flaskext.oldext_simple')
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def test_flaskext_old_package_import_normal(self):
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from flask.ext.oldext_package import ext_id
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self.assert_equal(ext_id, 'oldext_package')
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def test_flaskext_old_package_import_module(self):
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from flask.ext import oldext_package
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self.assert_equal(oldext_package.ext_id, 'oldext_package')
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self.assert_equal(oldext_package.__name__, 'flaskext.oldext_package')
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def test_flaskext_old_package_import_submodule(self):
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from flask.ext.oldext_package import submodule
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self.assert_equal(submodule.__name__, 'flaskext.oldext_package.submodule')
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self.assert_equal(submodule.test_function(), 42)
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def test_flaskext_old_package_import_submodule_function(self):
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from flask.ext.oldext_package.submodule import test_function
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self.assert_equal(test_function(), 42)
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def test_flaskext_broken_package_no_module_caching(self):
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for x in range(2):
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with self.assert_raises(ImportError):
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import flask.ext.broken
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def test_no_error_swallowing(self):
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try:
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import flask.ext.broken
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except ImportError:
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exc_type, exc_value, tb = sys.exc_info()
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self.assert_true(exc_type is ImportError)
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if PY2:
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message = 'No module named missing_module'
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else:
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message = 'No module named \'missing_module\''
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self.assert_equal(str(exc_value), message)
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self.assert_true(tb.tb_frame.f_globals is globals())
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# reraise() adds a second frame so we need to skip that one too.
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# On PY3 we even have another one :(
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next = tb.tb_next.tb_next
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if not PY2:
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next = next.tb_next
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self.assert_in('flask_broken/__init__.py', next.tb_frame.f_code.co_filename)
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def suite():
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suite = unittest.TestSuite()
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suite.addTest(unittest.makeSuite(ExtImportHookTestCase))
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return suite
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