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Diffstat (limited to 'ceilometerclient/apiclient/fake_client.py')
| -rw-r--r-- | ceilometerclient/apiclient/fake_client.py | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/ceilometerclient/apiclient/fake_client.py b/ceilometerclient/apiclient/fake_client.py new file mode 100644 index 0000000..30a0731 --- /dev/null +++ b/ceilometerclient/apiclient/fake_client.py @@ -0,0 +1,187 @@ +# Copyright 2013 OpenStack Foundation +# All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +""" +A fake server that "responds" to API methods with pre-canned responses. + +All of these responses come from the spec, so if for some reason the spec's +wrong the tests might raise AssertionError. I've indicated in comments the +places where actual behavior differs from the spec. +""" + +######################################################################## +# +# THIS MODULE IS DEPRECATED +# +# Please refer to +# https://etherpad.openstack.org/p/kilo-ceilometerclient-library-proposals for +# the discussion leading to this deprecation. +# +# We recommend checking out the python-openstacksdk project +# (https://launchpad.net/python-openstacksdk) instead. +# +######################################################################## + +# W0102: Dangerous default value %s as argument +# pylint: disable=W0102 + +import json + +import requests +import six +from six.moves.urllib import parse + +from ceilometerclient.apiclient import client + + +def assert_has_keys(dct, required=None, optional=None): + required = required or [] + optional = optional or [] + for k in required: + try: + assert k in dct + except AssertionError: + extra_keys = set(dct.keys()).difference(set(required + optional)) + raise AssertionError("found unexpected keys: %s" % + list(extra_keys)) + + +class TestResponse(requests.Response): + """Wrap requests.Response and provide a convenient initialization.""" + + def __init__(self, data): + super(TestResponse, self).__init__() + self._content_consumed = True + if isinstance(data, dict): + self.status_code = data.get('status_code', 200) + # Fake the text attribute to streamline Response creation + text = data.get('text', "") + if isinstance(text, (dict, list)): + self._content = json.dumps(text) + default_headers = { + "Content-Type": "application/json", + } + else: + self._content = text + default_headers = {} + if six.PY3 and isinstance(self._content, six.string_types): + self._content = self._content.encode('utf-8', 'strict') + self.headers = data.get('headers') or default_headers + else: + self.status_code = data + + def __eq__(self, other): + return (self.status_code == other.status_code and + self.headers == other.headers and + self._content == other._content) + + +class FakeHTTPClient(client.HTTPClient): + + def __init__(self, *args, **kwargs): + self.callstack = [] + self.fixtures = kwargs.pop("fixtures", None) or {} + if not args and "auth_plugin" not in kwargs: + args = (None, ) + super(FakeHTTPClient, self).__init__(*args, **kwargs) + + def assert_called(self, method, url, body=None, pos=-1): + """Assert than an API method was just called.""" + expected = (method, url) + called = self.callstack[pos][0:2] + assert self.callstack, \ + "Expected %s %s but no calls were made." % expected + + assert expected == called, 'Expected %s %s; got %s %s' % \ + (expected + called) + + if body is not None: + if self.callstack[pos][3] != body: + raise AssertionError('%r != %r' % + (self.callstack[pos][3], body)) + + def assert_called_anytime(self, method, url, body=None): + """Assert than an API method was called anytime in the test.""" + expected = (method, url) + + assert self.callstack, \ + "Expected %s %s but no calls were made." % expected + + found = False + entry = None + for entry in self.callstack: + if expected == entry[0:2]: + found = True + break + + assert found, 'Expected %s %s; got %s' % \ + (method, url, self.callstack) + if body is not None: + assert entry[3] == body, "%s != %s" % (entry[3], body) + + self.callstack = [] + + def clear_callstack(self): + self.callstack = [] + + def authenticate(self): + pass + + def client_request(self, client, method, url, **kwargs): + # Check that certain things are called correctly + if method in ["GET", "DELETE"]: + assert "json" not in kwargs + + # Note the call + self.callstack.append( + (method, + url, + kwargs.get("headers") or {}, + kwargs.get("json") or kwargs.get("data"))) + try: + fixture = self.fixtures[url][method] + except KeyError: + pass + else: + return TestResponse({"headers": fixture[0], + "text": fixture[1]}) + + # Call the method + args = parse.parse_qsl(parse.urlparse(url)[4]) + kwargs.update(args) + munged_url = url.rsplit('?', 1)[0] + munged_url = munged_url.strip('/').replace('/', '_').replace('.', '_') + munged_url = munged_url.replace('-', '_') + + callback = "%s_%s" % (method.lower(), munged_url) + + if not hasattr(self, callback): + raise AssertionError('Called unknown API method: %s %s, ' + 'expected fakes method name: %s' % + (method, url, callback)) + + resp = getattr(self, callback)(**kwargs) + if len(resp) == 3: + status, headers, body = resp + else: + status, body = resp + headers = {} + self.last_request_id = headers.get('x-openstack-request-id', + 'req-test') + return TestResponse({ + "status_code": status, + "text": body, + "headers": headers, + }) |