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117 lines
3.1 KiB
Python
117 lines
3.1 KiB
Python
10 years ago
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# -*- coding: utf-8 -*-
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"""
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flask.testsuite.regression
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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Tests regressions.
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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 os
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import gc
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import sys
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import flask
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import threading
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import unittest
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from werkzeug.exceptions import NotFound
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from flask.testsuite import FlaskTestCase
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_gc_lock = threading.Lock()
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class _NoLeakAsserter(object):
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def __init__(self, testcase):
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self.testcase = testcase
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def __enter__(self):
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gc.disable()
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_gc_lock.acquire()
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loc = flask._request_ctx_stack._local
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# Force Python to track this dictionary at all times.
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# This is necessary since Python only starts tracking
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# dicts if they contain mutable objects. It's a horrible,
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# horrible hack but makes this kinda testable.
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loc.__storage__['FOOO'] = [1, 2, 3]
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gc.collect()
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self.old_objects = len(gc.get_objects())
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def __exit__(self, exc_type, exc_value, tb):
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if not hasattr(sys, 'getrefcount'):
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gc.collect()
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new_objects = len(gc.get_objects())
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if new_objects > self.old_objects:
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self.testcase.fail('Example code leaked')
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_gc_lock.release()
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gc.enable()
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class MemoryTestCase(FlaskTestCase):
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def assert_no_leak(self):
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return _NoLeakAsserter(self)
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def test_memory_consumption(self):
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app = flask.Flask(__name__)
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@app.route('/')
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def index():
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return flask.render_template('simple_template.html', whiskey=42)
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def fire():
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with app.test_client() as c:
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rv = c.get('/')
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self.assert_equal(rv.status_code, 200)
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self.assert_equal(rv.data, b'<h1>42</h1>')
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# Trigger caches
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fire()
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# This test only works on CPython 2.7.
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if sys.version_info >= (2, 7) and \
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not hasattr(sys, 'pypy_translation_info'):
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with self.assert_no_leak():
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for x in range(10):
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fire()
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def test_safe_join_toplevel_pardir(self):
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from flask.helpers import safe_join
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with self.assert_raises(NotFound):
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safe_join('/foo', '..')
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class ExceptionTestCase(FlaskTestCase):
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def test_aborting(self):
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class Foo(Exception):
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whatever = 42
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app = flask.Flask(__name__)
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app.testing = True
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@app.errorhandler(Foo)
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def handle_foo(e):
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return str(e.whatever)
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@app.route('/')
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def index():
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raise flask.abort(flask.redirect(flask.url_for('test')))
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@app.route('/test')
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def test():
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raise Foo()
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with app.test_client() as c:
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rv = c.get('/')
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self.assertEqual(rv.headers['Location'], 'http://localhost/test')
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rv = c.get('/test')
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self.assertEqual(rv.data, b'42')
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def suite():
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suite = unittest.TestSuite()
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if os.environ.get('RUN_FLASK_MEMORY_TESTS') == '1':
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suite.addTest(unittest.makeSuite(MemoryTestCase))
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suite.addTest(unittest.makeSuite(ExceptionTestCase))
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return suite
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