mirror of https://github.com/pallets/flask.git
149 lines
3.9 KiB
Python
149 lines
3.9 KiB
Python
# -*- coding: utf-8 -*-
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"""
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tests.appctx
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~~~~~~~~~~~~
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Tests the application context.
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:copyright: (c) 2015 by Armin Ronacher.
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:license: BSD, see LICENSE for more details.
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"""
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import pytest
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import flask
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def test_basic_url_generation():
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app = flask.Flask(__name__)
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app.config['SERVER_NAME'] = 'localhost'
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app.config['PREFERRED_URL_SCHEME'] = 'https'
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@app.route('/')
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def index():
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pass
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with app.app_context():
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rv = flask.url_for('index')
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assert rv == 'https://localhost/'
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def test_url_generation_requires_server_name():
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app = flask.Flask(__name__)
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with app.app_context():
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with pytest.raises(RuntimeError):
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flask.url_for('index')
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def test_url_generation_without_context_fails():
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with pytest.raises(RuntimeError):
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flask.url_for('index')
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def test_request_context_means_app_context():
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app = flask.Flask(__name__)
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with app.test_request_context():
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assert flask.current_app._get_current_object() == app
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assert flask._app_ctx_stack.top is None
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def test_app_context_provides_current_app():
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app = flask.Flask(__name__)
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with app.app_context():
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assert flask.current_app._get_current_object() == app
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assert flask._app_ctx_stack.top is None
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def test_app_tearing_down():
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cleanup_stuff = []
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app = flask.Flask(__name__)
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@app.teardown_appcontext
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def cleanup(exception):
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cleanup_stuff.append(exception)
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with app.app_context():
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pass
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assert cleanup_stuff == [None]
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def test_app_tearing_down_with_previous_exception():
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cleanup_stuff = []
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app = flask.Flask(__name__)
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@app.teardown_appcontext
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def cleanup(exception):
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cleanup_stuff.append(exception)
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try:
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raise Exception('dummy')
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except Exception:
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pass
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with app.app_context():
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pass
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assert cleanup_stuff == [None]
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def test_app_tearing_down_with_handled_exception():
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cleanup_stuff = []
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app = flask.Flask(__name__)
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@app.teardown_appcontext
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def cleanup(exception):
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cleanup_stuff.append(exception)
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with app.app_context():
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try:
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raise Exception('dummy')
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except Exception:
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pass
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assert cleanup_stuff == [None]
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def test_app_ctx_globals_methods():
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app = flask.Flask(__name__)
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with app.app_context():
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# get
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assert flask.g.get('foo') is None
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assert flask.g.get('foo', 'bar') == 'bar'
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# __contains__
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assert 'foo' not in flask.g
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flask.g.foo = 'bar'
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assert 'foo' in flask.g
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# setdefault
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flask.g.setdefault('bar', 'the cake is a lie')
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flask.g.setdefault('bar', 'hello world')
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assert flask.g.bar == 'the cake is a lie'
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# pop
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assert flask.g.pop('bar') == 'the cake is a lie'
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with pytest.raises(KeyError):
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flask.g.pop('bar')
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assert flask.g.pop('bar', 'more cake') == 'more cake'
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# __iter__
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assert list(flask.g) == ['foo']
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def test_custom_app_ctx_globals_class():
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class CustomRequestGlobals(object):
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def __init__(self):
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self.spam = 'eggs'
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app = flask.Flask(__name__)
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app.app_ctx_globals_class = CustomRequestGlobals
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with app.app_context():
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assert flask.render_template_string('{{ g.spam }}') == 'eggs'
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def test_context_refcounts():
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called = []
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app = flask.Flask(__name__)
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@app.teardown_request
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def teardown_req(error=None):
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called.append('request')
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@app.teardown_appcontext
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def teardown_app(error=None):
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called.append('app')
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@app.route('/')
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def index():
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with flask._app_ctx_stack.top:
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with flask._request_ctx_stack.top:
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pass
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env = flask._request_ctx_stack.top.request.environ
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assert env['werkzeug.request'] is not None
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return u''
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c = app.test_client()
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res = c.get('/')
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assert res.status_code == 200
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assert res.data == b''
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assert called == ['request', 'app']
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