5e8dd8b287
Tests when simplejson was installed were failing because of a change in how it sorted in v3.0.0. This change first tests it via normal int sorting for stdlib json then if that fails, it tests against str sorting for simplejson.
623 lines
22 KiB
Python
623 lines
22 KiB
Python
# -*- coding: utf-8 -*-
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"""
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flask.testsuite.helpers
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~~~~~~~~~~~~~~~~~~~~~~~
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Various helpers.
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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 flask
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import unittest
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from logging import StreamHandler
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from flask.testsuite import FlaskTestCase, catch_warnings, catch_stderr
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from werkzeug.http import parse_cache_control_header, parse_options_header
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from flask._compat import StringIO, text_type
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def has_encoding(name):
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try:
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import codecs
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codecs.lookup(name)
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return True
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except LookupError:
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return False
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class JSONTestCase(FlaskTestCase):
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def test_json_bad_requests(self):
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app = flask.Flask(__name__)
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@app.route('/json', methods=['POST'])
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def return_json():
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return flask.jsonify(foo=text_type(flask.request.get_json()))
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c = app.test_client()
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rv = c.post('/json', data='malformed', content_type='application/json')
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self.assert_equal(rv.status_code, 400)
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def test_json_body_encoding(self):
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app = flask.Flask(__name__)
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app.testing = True
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@app.route('/')
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def index():
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return flask.request.get_json()
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c = app.test_client()
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resp = c.get('/', data=u'"Hällo Wörld"'.encode('iso-8859-15'),
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content_type='application/json; charset=iso-8859-15')
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self.assert_equal(resp.data, u'Hällo Wörld'.encode('utf-8'))
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def test_jsonify(self):
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d = dict(a=23, b=42, c=[1, 2, 3])
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app = flask.Flask(__name__)
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@app.route('/kw')
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def return_kwargs():
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return flask.jsonify(**d)
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@app.route('/dict')
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def return_dict():
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return flask.jsonify(d)
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c = app.test_client()
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for url in '/kw', '/dict':
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rv = c.get(url)
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self.assert_equal(rv.mimetype, 'application/json')
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self.assert_equal(flask.json.loads(rv.data), d)
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def test_json_as_unicode(self):
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app = flask.Flask(__name__)
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app.config['JSON_AS_ASCII'] = True
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with app.app_context():
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rv = flask.json.dumps(u'\N{SNOWMAN}')
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self.assert_equal(rv, '"\\u2603"')
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app.config['JSON_AS_ASCII'] = False
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with app.app_context():
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rv = flask.json.dumps(u'\N{SNOWMAN}')
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self.assert_equal(rv, u'"\u2603"')
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def test_json_attr(self):
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app = flask.Flask(__name__)
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@app.route('/add', methods=['POST'])
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def add():
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json = flask.request.get_json()
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return text_type(json['a'] + json['b'])
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c = app.test_client()
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rv = c.post('/add', data=flask.json.dumps({'a': 1, 'b': 2}),
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content_type='application/json')
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self.assert_equal(rv.data, b'3')
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def test_template_escaping(self):
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app = flask.Flask(__name__)
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render = flask.render_template_string
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with app.test_request_context():
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rv = flask.json.htmlsafe_dumps('</script>')
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self.assert_equal(rv, u'"\\u003c/script\\u003e"')
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self.assert_equal(type(rv), text_type)
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rv = render('{{ "</script>"|tojson }}')
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self.assert_equal(rv, '"\\u003c/script\\u003e"')
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rv = render('{{ "<\0/script>"|tojson }}')
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self.assert_equal(rv, '"\\u003c\\u0000/script\\u003e"')
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rv = render('{{ "<!--<script>"|tojson }}')
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self.assert_equal(rv, '"\\u003c!--\\u003cscript\\u003e"')
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rv = render('{{ "&"|tojson }}')
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self.assert_equal(rv, '"\\u0026"')
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rv = render('{{ "\'"|tojson }}')
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self.assert_equal(rv, '"\\u0027"')
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rv = render("<a ng-data='{{ data|tojson }}'></a>",
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data={'x': ["foo", "bar", "baz'"]})
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self.assert_equal(rv,
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'<a ng-data=\'{"x": ["foo", "bar", "baz\\u0027"]}\'></a>')
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def test_json_customization(self):
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class X(object):
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def __init__(self, val):
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self.val = val
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class MyEncoder(flask.json.JSONEncoder):
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def default(self, o):
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if isinstance(o, X):
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return '<%d>' % o.val
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return flask.json.JSONEncoder.default(self, o)
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class MyDecoder(flask.json.JSONDecoder):
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def __init__(self, *args, **kwargs):
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kwargs.setdefault('object_hook', self.object_hook)
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flask.json.JSONDecoder.__init__(self, *args, **kwargs)
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def object_hook(self, obj):
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if len(obj) == 1 and '_foo' in obj:
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return X(obj['_foo'])
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return obj
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app = flask.Flask(__name__)
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app.testing = True
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app.json_encoder = MyEncoder
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app.json_decoder = MyDecoder
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@app.route('/', methods=['POST'])
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def index():
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return flask.json.dumps(flask.request.get_json()['x'])
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c = app.test_client()
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rv = c.post('/', data=flask.json.dumps({
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'x': {'_foo': 42}
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}), content_type='application/json')
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self.assertEqual(rv.data, b'"<42>"')
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def test_modified_url_encoding(self):
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class ModifiedRequest(flask.Request):
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url_charset = 'euc-kr'
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app = flask.Flask(__name__)
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app.testing = True
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app.request_class = ModifiedRequest
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app.url_map.charset = 'euc-kr'
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@app.route('/')
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def index():
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return flask.request.args['foo']
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rv = app.test_client().get(u'/?foo=정상처리'.encode('euc-kr'))
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self.assert_equal(rv.status_code, 200)
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self.assert_equal(rv.data, u'정상처리'.encode('utf-8'))
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if not has_encoding('euc-kr'):
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test_modified_url_encoding = None
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def test_json_key_sorting(self):
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app = flask.Flask(__name__)
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app.testing = True
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self.assert_equal(app.config['JSON_SORT_KEYS'], True)
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d = dict.fromkeys(range(20), 'foo')
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@app.route('/')
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def index():
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return flask.jsonify(values=d)
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c = app.test_client()
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rv = c.get('/')
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lines = [x.strip() for x in rv.data.strip().decode('utf-8').splitlines()]
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sorted_by_str = [
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'{',
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'"values": {',
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'"0": "foo",',
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'"1": "foo",',
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'"10": "foo",',
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'"11": "foo",',
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'"12": "foo",',
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'"13": "foo",',
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'"14": "foo",',
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'"15": "foo",',
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'"16": "foo",',
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'"17": "foo",',
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'"18": "foo",',
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'"19": "foo",',
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'"2": "foo",',
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'"3": "foo",',
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'"4": "foo",',
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'"5": "foo",',
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'"6": "foo",',
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'"7": "foo",',
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'"8": "foo",',
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'"9": "foo"',
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'}',
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'}'
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]
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sorted_by_int = [
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'{',
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'"values": {',
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'"0": "foo",',
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'"1": "foo",',
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'"2": "foo",',
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'"3": "foo",',
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'"4": "foo",',
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'"5": "foo",',
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'"6": "foo",',
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'"7": "foo",',
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'"8": "foo",',
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'"9": "foo",',
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'"10": "foo",',
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'"11": "foo",',
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'"12": "foo",',
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'"13": "foo",',
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'"14": "foo",',
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'"15": "foo",',
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'"16": "foo",',
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'"17": "foo",',
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'"18": "foo",',
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'"19": "foo"',
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'}',
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'}'
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]
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try:
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self.assert_equal(lines, sorted_by_int)
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except AssertionError:
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self.assert_equal(lines, sorted_by_str)
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class SendfileTestCase(FlaskTestCase):
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def test_send_file_regular(self):
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app = flask.Flask(__name__)
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with app.test_request_context():
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rv = flask.send_file('static/index.html')
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self.assert_true(rv.direct_passthrough)
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self.assert_equal(rv.mimetype, 'text/html')
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with app.open_resource('static/index.html') as f:
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rv.direct_passthrough = False
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self.assert_equal(rv.data, f.read())
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rv.close()
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def test_send_file_xsendfile(self):
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app = flask.Flask(__name__)
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app.use_x_sendfile = True
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with app.test_request_context():
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rv = flask.send_file('static/index.html')
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self.assert_true(rv.direct_passthrough)
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self.assert_in('x-sendfile', rv.headers)
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self.assert_equal(rv.headers['x-sendfile'],
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os.path.join(app.root_path, 'static/index.html'))
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self.assert_equal(rv.mimetype, 'text/html')
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rv.close()
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def test_send_file_object(self):
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app = flask.Flask(__name__)
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with catch_warnings() as captured:
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with app.test_request_context():
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f = open(os.path.join(app.root_path, 'static/index.html'))
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rv = flask.send_file(f)
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rv.direct_passthrough = False
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with app.open_resource('static/index.html') as f:
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self.assert_equal(rv.data, f.read())
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self.assert_equal(rv.mimetype, 'text/html')
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rv.close()
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# mimetypes + etag
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self.assert_equal(len(captured), 2)
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app.use_x_sendfile = True
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with catch_warnings() as captured:
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with app.test_request_context():
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f = open(os.path.join(app.root_path, 'static/index.html'))
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rv = flask.send_file(f)
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self.assert_equal(rv.mimetype, 'text/html')
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self.assert_in('x-sendfile', rv.headers)
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self.assert_equal(rv.headers['x-sendfile'],
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os.path.join(app.root_path, 'static/index.html'))
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rv.close()
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# mimetypes + etag
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self.assert_equal(len(captured), 2)
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app.use_x_sendfile = False
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with app.test_request_context():
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with catch_warnings() as captured:
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f = StringIO('Test')
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rv = flask.send_file(f)
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rv.direct_passthrough = False
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self.assert_equal(rv.data, b'Test')
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self.assert_equal(rv.mimetype, 'application/octet-stream')
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rv.close()
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# etags
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self.assert_equal(len(captured), 1)
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with catch_warnings() as captured:
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f = StringIO('Test')
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rv = flask.send_file(f, mimetype='text/plain')
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rv.direct_passthrough = False
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self.assert_equal(rv.data, b'Test')
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self.assert_equal(rv.mimetype, 'text/plain')
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rv.close()
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# etags
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self.assert_equal(len(captured), 1)
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app.use_x_sendfile = True
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with catch_warnings() as captured:
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with app.test_request_context():
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f = StringIO('Test')
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rv = flask.send_file(f)
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self.assert_not_in('x-sendfile', rv.headers)
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rv.close()
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# etags
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self.assert_equal(len(captured), 1)
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def test_attachment(self):
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app = flask.Flask(__name__)
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with catch_warnings() as captured:
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with app.test_request_context():
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f = open(os.path.join(app.root_path, 'static/index.html'))
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rv = flask.send_file(f, as_attachment=True)
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value, options = parse_options_header(rv.headers['Content-Disposition'])
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self.assert_equal(value, 'attachment')
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rv.close()
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# mimetypes + etag
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self.assert_equal(len(captured), 2)
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with app.test_request_context():
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self.assert_equal(options['filename'], 'index.html')
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rv = flask.send_file('static/index.html', as_attachment=True)
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value, options = parse_options_header(rv.headers['Content-Disposition'])
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self.assert_equal(value, 'attachment')
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self.assert_equal(options['filename'], 'index.html')
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rv.close()
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with app.test_request_context():
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rv = flask.send_file(StringIO('Test'), as_attachment=True,
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attachment_filename='index.txt',
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add_etags=False)
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self.assert_equal(rv.mimetype, 'text/plain')
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value, options = parse_options_header(rv.headers['Content-Disposition'])
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self.assert_equal(value, 'attachment')
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self.assert_equal(options['filename'], 'index.txt')
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rv.close()
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def test_static_file(self):
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app = flask.Flask(__name__)
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# default cache timeout is 12 hours
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with app.test_request_context():
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# Test with static file handler.
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rv = app.send_static_file('index.html')
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cc = parse_cache_control_header(rv.headers['Cache-Control'])
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self.assert_equal(cc.max_age, 12 * 60 * 60)
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rv.close()
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# Test again with direct use of send_file utility.
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rv = flask.send_file('static/index.html')
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cc = parse_cache_control_header(rv.headers['Cache-Control'])
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self.assert_equal(cc.max_age, 12 * 60 * 60)
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rv.close()
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app.config['SEND_FILE_MAX_AGE_DEFAULT'] = 3600
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with app.test_request_context():
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# Test with static file handler.
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rv = app.send_static_file('index.html')
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cc = parse_cache_control_header(rv.headers['Cache-Control'])
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self.assert_equal(cc.max_age, 3600)
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rv.close()
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# Test again with direct use of send_file utility.
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rv = flask.send_file('static/index.html')
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cc = parse_cache_control_header(rv.headers['Cache-Control'])
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self.assert_equal(cc.max_age, 3600)
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rv.close()
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class StaticFileApp(flask.Flask):
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def get_send_file_max_age(self, filename):
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return 10
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app = StaticFileApp(__name__)
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with app.test_request_context():
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# Test with static file handler.
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rv = app.send_static_file('index.html')
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cc = parse_cache_control_header(rv.headers['Cache-Control'])
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self.assert_equal(cc.max_age, 10)
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rv.close()
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# Test again with direct use of send_file utility.
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rv = flask.send_file('static/index.html')
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cc = parse_cache_control_header(rv.headers['Cache-Control'])
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self.assert_equal(cc.max_age, 10)
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rv.close()
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class LoggingTestCase(FlaskTestCase):
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def test_logger_cache(self):
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app = flask.Flask(__name__)
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logger1 = app.logger
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self.assert_true(app.logger is logger1)
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self.assert_equal(logger1.name, __name__)
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app.logger_name = __name__ + '/test_logger_cache'
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self.assert_true(app.logger is not logger1)
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def test_debug_log(self):
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app = flask.Flask(__name__)
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app.debug = True
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@app.route('/')
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def index():
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app.logger.warning('the standard library is dead')
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app.logger.debug('this is a debug statement')
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return ''
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@app.route('/exc')
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def exc():
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1 // 0
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with app.test_client() as c:
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with catch_stderr() as err:
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c.get('/')
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out = err.getvalue()
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self.assert_in('WARNING in helpers [', out)
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self.assert_in(os.path.basename(__file__.rsplit('.', 1)[0] + '.py'), out)
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self.assert_in('the standard library is dead', out)
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self.assert_in('this is a debug statement', out)
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with catch_stderr() as err:
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try:
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c.get('/exc')
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except ZeroDivisionError:
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pass
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else:
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self.assert_true(False, 'debug log ate the exception')
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def test_debug_log_override(self):
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app = flask.Flask(__name__)
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app.debug = True
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app.logger_name = 'flask_tests/test_debug_log_override'
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app.logger.level = 10
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self.assert_equal(app.logger.level, 10)
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def test_exception_logging(self):
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out = StringIO()
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app = flask.Flask(__name__)
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app.logger_name = 'flask_tests/test_exception_logging'
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app.logger.addHandler(StreamHandler(out))
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@app.route('/')
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def index():
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1 // 0
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rv = app.test_client().get('/')
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self.assert_equal(rv.status_code, 500)
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self.assert_in(b'Internal Server Error', rv.data)
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err = out.getvalue()
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self.assert_in('Exception on / [GET]', err)
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self.assert_in('Traceback (most recent call last):', err)
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self.assert_in('1 // 0', err)
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self.assert_in('ZeroDivisionError:', err)
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def test_processor_exceptions(self):
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app = flask.Flask(__name__)
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@app.before_request
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def before_request():
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if trigger == 'before':
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1 // 0
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@app.after_request
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def after_request(response):
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if trigger == 'after':
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1 // 0
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return response
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@app.route('/')
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def index():
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return 'Foo'
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@app.errorhandler(500)
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def internal_server_error(e):
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return 'Hello Server Error', 500
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for trigger in 'before', 'after':
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rv = app.test_client().get('/')
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self.assert_equal(rv.status_code, 500)
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self.assert_equal(rv.data, b'Hello Server Error')
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|
|
def test_url_for_with_anchor(self):
|
|
app = flask.Flask(__name__)
|
|
@app.route('/')
|
|
def index():
|
|
return '42'
|
|
with app.test_request_context():
|
|
self.assert_equal(flask.url_for('index', _anchor='x y'),
|
|
'/#x%20y')
|
|
|
|
def test_url_for_with_scheme(self):
|
|
app = flask.Flask(__name__)
|
|
@app.route('/')
|
|
def index():
|
|
return '42'
|
|
with app.test_request_context():
|
|
self.assert_equal(flask.url_for('index',
|
|
_external=True,
|
|
_scheme='https'),
|
|
'https://localhost/')
|
|
|
|
def test_url_for_with_scheme_not_external(self):
|
|
app = flask.Flask(__name__)
|
|
@app.route('/')
|
|
def index():
|
|
return '42'
|
|
with app.test_request_context():
|
|
self.assert_raises(ValueError,
|
|
flask.url_for,
|
|
'index',
|
|
_scheme='https')
|
|
|
|
def test_url_with_method(self):
|
|
from flask.views import MethodView
|
|
app = flask.Flask(__name__)
|
|
class MyView(MethodView):
|
|
def get(self, id=None):
|
|
if id is None:
|
|
return 'List'
|
|
return 'Get %d' % id
|
|
def post(self):
|
|
return 'Create'
|
|
myview = MyView.as_view('myview')
|
|
app.add_url_rule('/myview/', methods=['GET'],
|
|
view_func=myview)
|
|
app.add_url_rule('/myview/<int:id>', methods=['GET'],
|
|
view_func=myview)
|
|
app.add_url_rule('/myview/create', methods=['POST'],
|
|
view_func=myview)
|
|
|
|
with app.test_request_context():
|
|
self.assert_equal(flask.url_for('myview', _method='GET'),
|
|
'/myview/')
|
|
self.assert_equal(flask.url_for('myview', id=42, _method='GET'),
|
|
'/myview/42')
|
|
self.assert_equal(flask.url_for('myview', _method='POST'),
|
|
'/myview/create')
|
|
|
|
|
|
class NoImportsTestCase(FlaskTestCase):
|
|
"""Test Flasks are created without import.
|
|
|
|
Avoiding ``__import__`` helps create Flask instances where there are errors
|
|
at import time. Those runtime errors will be apparent to the user soon
|
|
enough, but tools which build Flask instances meta-programmatically benefit
|
|
from a Flask which does not ``__import__``. Instead of importing to
|
|
retrieve file paths or metadata on a module or package, use the pkgutil and
|
|
imp modules in the Python standard library.
|
|
"""
|
|
|
|
def test_name_with_import_error(self):
|
|
try:
|
|
flask.Flask('importerror')
|
|
except NotImplementedError:
|
|
self.fail('Flask(import_name) is importing import_name.')
|
|
|
|
|
|
class StreamingTestCase(FlaskTestCase):
|
|
|
|
def test_streaming_with_context(self):
|
|
app = flask.Flask(__name__)
|
|
app.testing = True
|
|
@app.route('/')
|
|
def index():
|
|
def generate():
|
|
yield 'Hello '
|
|
yield flask.request.args['name']
|
|
yield '!'
|
|
return flask.Response(flask.stream_with_context(generate()))
|
|
c = app.test_client()
|
|
rv = c.get('/?name=World')
|
|
self.assertEqual(rv.data, b'Hello World!')
|
|
|
|
def test_streaming_with_context_as_decorator(self):
|
|
app = flask.Flask(__name__)
|
|
app.testing = True
|
|
@app.route('/')
|
|
def index():
|
|
@flask.stream_with_context
|
|
def generate():
|
|
yield 'Hello '
|
|
yield flask.request.args['name']
|
|
yield '!'
|
|
return flask.Response(generate())
|
|
c = app.test_client()
|
|
rv = c.get('/?name=World')
|
|
self.assertEqual(rv.data, b'Hello World!')
|
|
|
|
def test_streaming_with_context_and_custom_close(self):
|
|
app = flask.Flask(__name__)
|
|
app.testing = True
|
|
called = []
|
|
class Wrapper(object):
|
|
def __init__(self, gen):
|
|
self._gen = gen
|
|
def __iter__(self):
|
|
return self
|
|
def close(self):
|
|
called.append(42)
|
|
def __next__(self):
|
|
return next(self._gen)
|
|
next = __next__
|
|
@app.route('/')
|
|
def index():
|
|
def generate():
|
|
yield 'Hello '
|
|
yield flask.request.args['name']
|
|
yield '!'
|
|
return flask.Response(flask.stream_with_context(
|
|
Wrapper(generate())))
|
|
c = app.test_client()
|
|
rv = c.get('/?name=World')
|
|
self.assertEqual(rv.data, b'Hello World!')
|
|
self.assertEqual(called, [42])
|
|
|
|
|
|
def suite():
|
|
suite = unittest.TestSuite()
|
|
if flask.json_available:
|
|
suite.addTest(unittest.makeSuite(JSONTestCase))
|
|
suite.addTest(unittest.makeSuite(SendfileTestCase))
|
|
suite.addTest(unittest.makeSuite(LoggingTestCase))
|
|
suite.addTest(unittest.makeSuite(NoImportsTestCase))
|
|
suite.addTest(unittest.makeSuite(StreamingTestCase))
|
|
return suite
|