sdk/python/tests/test_api.py

   1 #!/usr/bin/env python
   2
   3 from __future__ import absolute_import
   4 import arvados
   5 import collections
   6 import httplib2
   7 import itertools
   8 import json
   9 import mimetypes
  10 import os
  11 import socket
  12 import string
  13 import unittest
  14
  15 import mock
  16 from . import run_test_server
  17
  18 from apiclient import errors as apiclient_errors
  19 from apiclient import http as apiclient_http
  20 from arvados.api import OrderedJsonModel, RETRY_DELAY_INITIAL, RETRY_DELAY_BACKOFF, RETRY_COUNT
  21 from .arvados_testutil import fake_httplib2_response, queue_with
  22
  23 if not mimetypes.inited:
  24     mimetypes.init()
  25
  26 class ArvadosApiTest(run_test_server.TestCaseWithServers):
  27     MAIN_SERVER = {}
  28     ERROR_HEADERS = {'Content-Type': mimetypes.types_map['.json']}
  29
  30     def api_error_response(self, code, *errors):
  31         return (fake_httplib2_response(code, **self.ERROR_HEADERS),
  32                 json.dumps({'errors': errors,
  33                             'error_token': '1234567890+12345678'}))
  34
  35     def test_new_api_objects_with_cache(self):
  36         clients = [arvados.api('v1', cache=True) for index in [0, 1]]
  37         self.assertIsNot(*clients)
  38
  39     def test_empty_list(self):
  40         answer = arvados.api('v1').humans().list(
  41             filters=[['uuid', '=', None]]).execute()
  42         self.assertEqual(answer['items_available'], len(answer['items']))
  43
  44     def test_nonempty_list(self):
  45         answer = arvados.api('v1').collections().list().execute()
  46         self.assertNotEqual(0, answer['items_available'])
  47         self.assertNotEqual(0, len(answer['items']))
  48
  49     def test_timestamp_inequality_filter(self):
  50         api = arvados.api('v1')
  51         new_item = api.specimens().create(body={}).execute()
  52         for operator, should_include in [
  53                 ['<', False], ['>', False],
  54                 ['<=', True], ['>=', True], ['=', True]]:
  55             response = api.specimens().list(filters=[
  56                 ['created_at', operator, new_item['created_at']],
  57                 # Also filter by uuid to ensure (if it matches) it's on page 0
  58                 ['uuid', '=', new_item['uuid']]]).execute()
  59             uuids = [item['uuid'] for item in response['items']]
  60             did_include = new_item['uuid'] in uuids
  61             self.assertEqual(
  62                 did_include, should_include,
  63                 "'%s %s' filter should%s have matched '%s'" % (
  64                     operator, new_item['created_at'],
  65                     ('' if should_include else ' not'),
  66                     new_item['created_at']))
  67
  68     def test_exceptions_include_errors(self):
  69         mock_responses = {
  70             'arvados.humans.get': self.api_error_response(
  71                 422, "Bad UUID format", "Bad output format"),
  72             }
  73         req_builder = apiclient_http.RequestMockBuilder(mock_responses)
  74         api = arvados.api('v1', requestBuilder=req_builder)
  75         with self.assertRaises(apiclient_errors.HttpError) as err_ctx:
  76             api.humans().get(uuid='xyz-xyz-abcdef').execute()
  77         err_s = str(err_ctx.exception)
  78         for msg in ["Bad UUID format", "Bad output format"]:
  79             self.assertIn(msg, err_s)
  80
  81     def test_exceptions_without_errors_have_basic_info(self):
  82         mock_responses = {
  83             'arvados.humans.delete': (
  84                 fake_httplib2_response(500, **self.ERROR_HEADERS),
  85                 "")
  86             }
  87         req_builder = apiclient_http.RequestMockBuilder(mock_responses)
  88         api = arvados.api('v1', requestBuilder=req_builder)
  89         with self.assertRaises(apiclient_errors.HttpError) as err_ctx:
  90             api.humans().delete(uuid='xyz-xyz-abcdef').execute()
  91         self.assertIn("500", str(err_ctx.exception))
  92
  93     def test_request_too_large(self):
  94         api = arvados.api('v1')
  95         maxsize = api._rootDesc.get('maxRequestSize', 0)
  96         with self.assertRaises(apiclient_errors.MediaUploadSizeError):
  97             text = "X" * maxsize
  98             arvados.api('v1').collections().create(body={"manifest_text": text}).execute()
  99
 100     def test_ordered_json_model(self):
 101         mock_responses = {
 102             'arvados.humans.get': (None, json.dumps(collections.OrderedDict(
 103                         (c, int(c, 16)) for c in string.hexdigits))),
 104             }
 105         req_builder = apiclient_http.RequestMockBuilder(mock_responses)
 106         api = arvados.api('v1',
 107                           requestBuilder=req_builder, model=OrderedJsonModel())
 108         result = api.humans().get(uuid='test').execute()
 109         self.assertEqual(string.hexdigits, ''.join(result.keys()))
 110
 111
 112 class RetryREST(unittest.TestCase):
 113     def setUp(self):
 114         self.api = arvados.api('v1')
 115         self.assertTrue(hasattr(self.api._http, 'orig_http_request'),
 116                         "test doesn't know how to intercept HTTP requests")
 117         self.mock_response = {'user': 'person'}
 118         self.request_success = (fake_httplib2_response(200),
 119                                 json.dumps(self.mock_response))
 120         self.api._http.orig_http_request = mock.MagicMock()
 121         # All requests succeed by default. Tests override as needed.
 122         self.api._http.orig_http_request.return_value = self.request_success
 123
 124     @mock.patch('time.sleep')
 125     def test_socket_error_retry_get(self, sleep):
 126         self.api._http.orig_http_request.side_effect = (
 127             socket.error('mock error'),
 128             self.request_success,
 129         )
 130         self.assertEqual(self.api.users().current().execute(),
 131                          self.mock_response)
 132         self.assertGreater(self.api._http.orig_http_request.call_count, 1,
 133                            "client got the right response without retrying")
 134         self.assertEqual(sleep.call_args_list,
 135                          [mock.call(RETRY_DELAY_INITIAL)])
 136
 137     @mock.patch('time.sleep')
 138     def test_socket_error_retry_delay(self, sleep):
 139         self.api._http.orig_http_request.side_effect = socket.error('mock')
 140         self.api._http._retry_count = 3
 141         with self.assertRaises(socket.error):
 142             self.api.users().current().execute()
 143         self.assertEqual(self.api._http.orig_http_request.call_count, 4)
 144         self.assertEqual(sleep.call_args_list, [
 145             mock.call(RETRY_DELAY_INITIAL),
 146             mock.call(RETRY_DELAY_INITIAL * RETRY_DELAY_BACKOFF),
 147             mock.call(RETRY_DELAY_INITIAL * RETRY_DELAY_BACKOFF**2),
 148         ])
 149
 150     @mock.patch('time.time', side_effect=[i*2**20 for i in range(99)])
 151     def test_close_old_connections_non_retryable(self, sleep):
 152         self._test_connection_close(expect=1)
 153
 154     @mock.patch('time.time', side_effect=itertools.count())
 155     def test_no_close_fresh_connections_non_retryable(self, sleep):
 156         self._test_connection_close(expect=0)
 157
 158     @mock.patch('time.time', side_effect=itertools.count())
 159     def test_override_max_idle_time(self, sleep):
 160         self.api._http._max_keepalive_idle = 0
 161         self._test_connection_close(expect=1)
 162
 163     def _test_connection_close(self, expect=0):
 164         # Do two POST requests. The second one must close all
 165         # connections +expect+ times.
 166         self.api.users().create(body={}).execute()
 167         mock_conns = {str(i): mock.MagicMock() for i in range(2)}
 168         self.api._http.connections = mock_conns.copy()
 169         self.api.users().create(body={}).execute()
 170         for c in mock_conns.itervalues():
 171             self.assertEqual(c.close.call_count, expect)
 172
 173     @mock.patch('time.sleep')
 174     def test_socket_error_no_retry_post(self, sleep):
 175         self.api._http.orig_http_request.side_effect = (
 176             socket.error('mock error'),
 177             self.request_success,
 178         )
 179         with self.assertRaises(socket.error):
 180             self.api.users().create(body={}).execute()
 181         self.assertEqual(self.api._http.orig_http_request.call_count, 1,
 182                          "client should try non-retryable method exactly once")
 183         self.assertEqual(sleep.call_args_list, [])
 184
 185
 186 if __name__ == '__main__':
 187     unittest.main()