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path: root/ick2/client_tests.py
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# Copyright (C) 2018  Lars Wirzenius
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.


import json
import unittest


import ick2


json_type = 'application/json'


class HttpAPITests(unittest.TestCase):

    def setUp(self):
        self.session = FakeHttpSession()
        self.session.token = 'SECRET-TOKEN'
        self.client = ick2.HttpAPI()
        self.client.set_session(self.session)
        self.client.set_token(self.session.token)

    def test_get_dict_raises_exception_on_error(self):
        self.session.response = FakeResponse(400)
        with self.assertRaises(ick2.HttpError):
            self.client.get_dict('http://controller/version')

    def test_get_dict_raises_exception_on_not_json(self):
        self.session.response = FakeResponse(200, body=json.dumps('{}'))
        with self.assertRaises(ick2.HttpError):
            self.client.get_dict('http://controller/version')

    def test_get_dict_raises_exception_on_malformed_json(self):
        self.session.response = FakeResponse(
            200, body='this is not really JSON', content_type=json_type)
        with self.assertRaises(ick2.HttpError):
            self.client.get_dict('http://controller/version')

    def test_get_dict_returns_response(self):
        version = {
            'version': '1.0',
        }

        self.session.response = FakeResponse(
            200, body=json.dumps(version), content_type=json_type)
        obj = self.client.get_dict('http://controller/version')
        self.assertEqual(obj, version)

    def test_get_blob_raises_exception_on_error(self):
        self.session.response = FakeResponse(404)
        with self.assertRaises(ick2.HttpError):
            self.client.get_blob('http://blobs/foo')

    def test_get_blob_returns_response(self):
        blob = b'hello, world\n'
        self.session.response = FakeResponse(200, body=blob)
        obj = self.client.get_blob('http://blobs/foo')
        self.assertEqual(obj, blob)

    def test_post_raises_exception_on_error(self):
        self.session.response = FakeResponse(400)
        with self.assertRaises(ick2.HttpError):
            self.client.post('http://controller/work', body='')

    def test_post_succeeds(self):
        work = {
            'project': 'foo',
            'stdout': 'hello, world\n',
        }

        self.session.response = FakeResponse(
            201, body=json.dumps(work), content_type=json_type)
        obj = self.client.post('http://controller/work', body=work)
        self.assertEqual(obj, None)

    def test_put_raises_exception_on_error(self):
        blob = b'fooblob'
        self.session.response = FakeResponse(400)
        with self.assertRaises(ick2.HttpError):
            self.client.put('http://blobs/foo', body=blob)

    def test_put_succeeds(self):
        blob = b'fooblob'
        self.session.response = FakeResponse(201, body=None)
        obj = self.client.put('http://controller/work', body=blob)
        self.assertEqual(obj, None)

    def test_post_auth_does_basic_auth(self):
        token = 'this is a token'
        scope = 'this and that'
        response = {
            'access_token': token,
            'token_type': 'bearer',
            'scope': scope,
        }
        self.session.response = FakeResponse(200, body=response)

        client_id = 'this-is--my-client'
        client_secret = '*****'
        auth = (client_id, client_secret)
        body = 'foo=bar'
        self.client.post_auth(
            'http://auth.example.com/token', auth=auth, body=body)

        self.assertEqual(self.session.auth, auth)

        authz = self.session.headers['Authorization']
        self.assertTrue(authz.startswith('Basic '))

        self.assertEqual(self.session.body, body)


class ControllerClientTests(unittest.TestCase):

    def setUp(self):
        self.session = FakeHttpSession()
        self.session.token = 'SECRET-TOKEN'

        self.client = ick2.HttpAPI()
        self.client.set_session(self.session)
        self.client.set_token(self.session.token)

        self.controller = ick2.ControllerClient()
        self.controller.set_http_api(self.client)
        self.controller.set_controller_url('https://controller')
        self.controller.set_token('SECRET-TOKEN')
        self.controller.set_client_name('asterix')

    def test_register_succeeds_on_error(self):
        self.session.response = FakeResponse(400)
        self.assertEqual(self.controller.register(), None)

    def test_register_succeeds(self):
        self.session.response = FakeResponse(200)
        self.assertEqual(self.controller.register(), None)

    def test_get_work_raises_exception_on_error(self):
        self.session.response = FakeResponse(400)
        with self.assertRaises(ick2.HttpError):
            self.controller.get_work()

    def test_get_work_succeeds(self):
        work = {
            'build_id': 'rome/1'
        }
        self.session.response = FakeResponse(
            200, body=json.dumps(work), content_type=json_type)
        self.assertEqual(self.controller.get_work(), work)

    def test_report_work_raises_exception_on_error(self):
        work = {
            'stdout': 'hello, world',
        }
        self.session.response = FakeResponse(400)
        with self.assertRaises(ick2.HttpError):
            self.controller.report_work(work)

    def test_report_work_succeeds(self):
        work = {
            'stdout': 'hello, world',
        }
        self.session.response = FakeResponse(200)
        self.assertEqual(self.controller.report_work(work), None)

    def test_get_apt_server_raises_exception_on_error(self):
        self.session.response = FakeResponse(400)
        with self.assertRaises(ick2.HttpError):
            self.controller.get_apt_server()

    def test_get_apt_server_succeeds(self):
        server = 'apt.example.com'
        version = {
            'apt_server': server,
        }
        self.session.response = FakeResponse(
            200, body=json.dumps(version), content_type=json_type)
        self.assertEqual(self.controller.get_apt_server(), server)

    def test_get_artifact_store_url_raises_exception_on_error(self):
        self.session.response = FakeResponse(400)
        with self.assertRaises(ick2.HttpError):
            self.controller.get_artifact_store_url()

    def test_get_artifact_store_url_succeeds(self):
        url = 'https://blobs'
        version = {
            'artifact_store': url,
        }
        self.session.response = FakeResponse(
            200, body=json.dumps(version), content_type=json_type)
        self.assertEqual(self.controller.get_artifact_store_url(), url)

    def test_get_auth_url_raises_exception_on_error(self):
        self.session.response = FakeResponse(400)
        with self.assertRaises(ick2.HttpError):
            self.controller.get_auth_url()

    def test_get_auth_url_succeeds(self):
        url = 'https://blobs'
        version = {
            'auth_url': url,
        }
        self.session.response = FakeResponse(
            200, body=json.dumps(version), content_type=json_type)
        self.assertEqual(self.controller.get_auth_url(), url)

    def test_get_auth_client_returns_object(self):
        url = 'https://blobs'
        version = {
            'auth_url': url,
        }
        self.session.response = FakeResponse(
            200, body=json.dumps(version), content_type=json_type)
        ac = self.controller.get_auth_client()
        self.assertTrue(isinstance(ac, ick2.AuthClient))


class AuthClientTests(unittest.TestCase):

    def setUp(self):
        self.session = FakeHttpSession()

        self.client = ick2.HttpAPI()
        self.client.set_session(self.session)

    def test_raises_exception_on_error(self):
        self.session.response = FakeResponse(400)

        url = 'https://auth.example.com'
        client_id = 'test-client'
        client_secret = 'hunter2'
        ac = ick2.AuthClient()
        ac.set_auth_url(url)
        ac.set_http_api(self.client)
        ac.set_client_creds(client_id, client_secret)
        with self.assertRaises(ick2.HttpError):
            ac.get_token('')

    def test_returns_token(self):
        token = 'this-is-my-token'
        token_response = {
            'access_token': token,
        }

        self.session.response = FakeResponse(
            200, body=json.dumps(token_response), content_type=json_type)

        url = 'https://auth.example.com'
        client_id = 'test-client'
        client_secret = 'hunter2'
        ac = ick2.AuthClient()
        ac.set_auth_url(url)
        ac.set_http_api(self.client)
        ac.set_client_creds(client_id, client_secret)
        self.assertEqual(ac.get_token(''), token)


class BlobServiceClientTests(unittest.TestCase):

    def setUp(self):
        self.session = FakeHttpSession()
        self.session.token = 'SECRET-TOKEN'

        self.client = ick2.HttpAPI()
        self.client.set_session(self.session)
        self.client.set_token(self.session.token)

        self.controller = ick2.ControllerClient()
        self.controller.set_http_api(self.client)
        self.controller.set_controller_url('https://controller')
        self.controller.set_token('SECRET-TOKEN')
        self.controller.set_client_name('asterix')

    def get_blob_client(self):
        url = 'https://blobs'
        version = {
            'artifact_store': url,
        }
        self.session.response = FakeResponse(
            200, body=json.dumps(version), content_type=json_type)

        return self.controller.get_blob_client()

    def test_get_blob_client_raises_exception_on_error(self):
        self.session.response = FakeResponse(400)
        with self.assertRaises(ick2.HttpError):
            self.controller.get_blob_client()

    def test_get_blob_client_succeeds(self):
        blobs = self.get_blob_client()
        self.assertTrue(isinstance(blobs, ick2.BlobClient))

    def test_download_raises_exception_on_error(self):
        blobs = self.get_blob_client()
        self.session.response = FakeResponse(400)
        with self.assertRaises(ick2.HttpError):
            blobs.download('foo')

    def test_download_succeeds(self):
        blobs = self.get_blob_client()
        blob = b'hello, world'
        self.session.response = FakeResponse(200, body=blob)
        self.assertEqual(blobs.download('foo'), blob)

    def test_upload_raises_exception_on_error(self):
        blobs = self.get_blob_client()
        blob = b'hello, world'
        self.session.response = FakeResponse(400)
        with self.assertRaises(ick2.HttpError):
            blobs.upload('foo', blob)

    def test_upload_succeeds(self):
        blobs = self.get_blob_client()
        blob = b'hello, world'
        self.session.response = FakeResponse(200)
        self.assertEqual(blobs.upload('foo', blob), None)


class FakeHttpSession:

    def __init__(self):
        self.response = None
        self.token = None
        self.auth = None
        self.headers = None
        self.body = None

    def get(self, url, headers=None, verify=None):
        assert self.response is not None
        assert self.is_authorized(headers)
        return self.response

    def post(self, url, headers=None, data=None, verify=None, auth=None):
        assert self.response is not None
        assert auth is not None or self.is_authorized(headers)
        self.auth = auth
        self.headers = headers
        self.body = data
        return self.response

    def put(self, url, headers=None, data=None, verify=None):
        assert self.response is not None
        assert self.is_authorized(headers)
        return self.response

    def is_authorized(self, headers):
        assert self.token is not None
        assert 'Authorization' in headers
        v = headers['Authorization']
        return v == 'Bearer {}'.format(self.token)


class FakeResponse:

    def __init__(self, status_code, body=None, content_type=None):
        if content_type is None:
            content_type = 'application/octet-stream'

        self.status_code = status_code
        self.headers = {
            'Content-Type': content_type,
        }
        self.content = body
        self.text = body

    @property
    def ok(self):
        return self.status_code in (200, 201)

    def json(self):
        return json.loads(self.content)