mirror of https://github.com/pallets/flask.git
98 lines
2.3 KiB
Python
98 lines
2.3 KiB
Python
# -*- coding: utf-8 -*-
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"""
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tests.regression
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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Tests regressions.
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:copyright: 2010 Pallets
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:license: BSD-3-Clause
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"""
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import gc
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import sys
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import threading
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import pytest
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from werkzeug.exceptions import NotFound
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import flask
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_gc_lock = threading.Lock()
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class assert_no_leak(object):
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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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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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pytest.fail("Example code leaked")
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_gc_lock.release()
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gc.enable()
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def test_memory_consumption():
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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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assert rv.status_code == 200
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assert 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 not hasattr(sys, "pypy_translation_info"):
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with 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():
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from flask.helpers import safe_join
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with pytest.raises(NotFound):
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safe_join("/foo", "..")
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def test_aborting(app):
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class Foo(Exception):
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whatever = 42
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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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assert rv.headers["Location"] == "http://localhost/test"
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rv = c.get("/test")
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assert rv.data == b"42"
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