a2d04996ae
IOError doesn't seem appropiate for things like invalid URL scheme and template exceeding max size. And requests.RequestException means an ambiguous exception occurred while handling requests, not necessarily an IO error. Change-Id: Ib8108a5b9bf6d6c99545a1c29735521720d3a75a
132 lines
4.2 KiB
Python
132 lines
4.2 KiB
Python
#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo.config import cfg
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import requests
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from requests import exceptions
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from six.moves import cStringIO
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from six.moves import urllib
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from heat.common import urlfetch
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from heat.tests.common import HeatTestCase
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class Response:
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def __init__(self, buf=''):
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self.buf = buf
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def iter_content(self, chunk_size=1):
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while self.buf:
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yield self.buf[:chunk_size]
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self.buf = self.buf[chunk_size:]
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def raise_for_status(self):
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pass
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class UrlFetchTest(HeatTestCase):
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def setUp(self):
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super(UrlFetchTest, self).setUp()
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self.m.StubOutWithMock(requests, 'get')
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def test_file_scheme_default_behaviour(self):
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self.m.ReplayAll()
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self.assertRaises(urlfetch.URLFetchError,
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urlfetch.get, 'file:///etc/profile')
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self.m.VerifyAll()
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def test_file_scheme_supported(self):
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data = '{ "foo": "bar" }'
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url = 'file:///etc/profile'
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self.m.StubOutWithMock(urllib.request, 'urlopen')
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urllib.request.urlopen(url).AndReturn(cStringIO(data))
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self.m.ReplayAll()
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self.assertEqual(data, urlfetch.get(url, allowed_schemes=['file']))
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self.m.VerifyAll()
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def test_file_scheme_failure(self):
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url = 'file:///etc/profile'
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self.m.StubOutWithMock(urllib.request, 'urlopen')
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urllib.request.urlopen(url).AndRaise(urllib.error.URLError('oops'))
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self.m.ReplayAll()
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self.assertRaises(urlfetch.URLFetchError,
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urlfetch.get, url, allowed_schemes=['file'])
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self.m.VerifyAll()
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def test_http_scheme(self):
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url = 'http://example.com/template'
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data = '{ "foo": "bar" }'
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response = Response(data)
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requests.get(url, stream=True).AndReturn(response)
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self.m.ReplayAll()
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self.assertEqual(data, urlfetch.get(url))
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self.m.VerifyAll()
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def test_https_scheme(self):
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url = 'https://example.com/template'
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data = '{ "foo": "bar" }'
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response = Response(data)
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requests.get(url, stream=True).AndReturn(response)
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self.m.ReplayAll()
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self.assertEqual(data, urlfetch.get(url))
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self.m.VerifyAll()
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def test_http_error(self):
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url = 'http://example.com/template'
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requests.get(url, stream=True).AndRaise(exceptions.HTTPError())
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self.m.ReplayAll()
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self.assertRaises(urlfetch.URLFetchError, urlfetch.get, url)
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self.m.VerifyAll()
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def test_non_exist_url(self):
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url = 'http://non-exist.com/template'
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requests.get(url, stream=True).AndRaise(exceptions.Timeout())
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self.m.ReplayAll()
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self.assertRaises(urlfetch.URLFetchError, urlfetch.get, url)
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self.m.VerifyAll()
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def test_garbage(self):
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self.m.ReplayAll()
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self.assertRaises(urlfetch.URLFetchError, urlfetch.get, 'wibble')
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self.m.VerifyAll()
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def test_max_fetch_size_okay(self):
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url = 'http://example.com/template'
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data = '{ "foo": "bar" }'
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response = Response(data)
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cfg.CONF.set_override('max_template_size', 500)
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requests.get(url, stream=True).AndReturn(response)
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self.m.ReplayAll()
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urlfetch.get(url)
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self.m.VerifyAll()
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def test_max_fetch_size_error(self):
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url = 'http://example.com/template'
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data = '{ "foo": "bar" }'
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response = Response(data)
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cfg.CONF.set_override('max_template_size', 5)
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requests.get(url, stream=True).AndReturn(response)
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self.m.ReplayAll()
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exception = self.assertRaises(urlfetch.URLFetchError,
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urlfetch.get, url)
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self.assertIn("Template exceeds", str(exception))
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self.m.VerifyAll()
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