19686: api constructor returns ThreadSafeApiCache
[arvados.git] / sdk / python / tests / test_api.py
index 5cf2d2b58c8c4086a075b78eee0d34024ab81db1..03af8ce5ee181e8bc95cddd724ef7c65c734131f 100644 (file)
@@ -1,67 +1,48 @@
-#!/usr/bin/env python
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
 
+from __future__ import absolute_import
+from builtins import str
+from builtins import range
 import arvados
+import collections
 import httplib2
+import itertools
 import json
 import mimetypes
 import os
-import run_test_server
+import socket
+import string
 import unittest
+
+import mock
+from . import run_test_server
+
 from apiclient import errors as apiclient_errors
 from apiclient import http as apiclient_http
-
-from arvados_testutil import fake_httplib2_response
+from arvados.api import OrderedJsonModel, RETRY_DELAY_INITIAL, RETRY_DELAY_BACKOFF, RETRY_COUNT
+from .arvados_testutil import fake_httplib2_response, queue_with
 
 if not mimetypes.inited:
     mimetypes.init()
 
-class ArvadosApiClientTest(unittest.TestCase):
+class ArvadosApiTest(run_test_server.TestCaseWithServers):
+    MAIN_SERVER = {}
     ERROR_HEADERS = {'Content-Type': mimetypes.types_map['.json']}
 
-    @classmethod
-    def api_error_response(cls, code, *errors):
-        return (fake_httplib2_response(code, **cls.ERROR_HEADERS),
+    def api_error_response(self, code, *errors):
+        return (fake_httplib2_response(code, **self.ERROR_HEADERS),
                 json.dumps({'errors': errors,
-                            'error_token': '1234567890+12345678'}))
-
-    @classmethod
-    def setUpClass(cls):
-        # The apiclient library has support for mocking requests for
-        # testing, but it doesn't extend to the discovery document
-        # itself. For now, bring up an API server that will serve
-        # a discovery document.
-        # FIXME: Figure out a better way to stub this out.
-        run_test_server.run()
-        mock_responses = {
-            'arvados.humans.delete': (
-                fake_httplib2_response(500, **cls.ERROR_HEADERS),
-                ""),
-            'arvados.humans.get': cls.api_error_response(
-                422, "Bad UUID format", "Bad output format"),
-            'arvados.humans.list': (None, json.dumps(
-                    {'items_available': 0, 'items': []})),
-            }
-        req_builder = apiclient_http.RequestMockBuilder(mock_responses)
-        cls.api = arvados.api('v1',
-                              host=os.environ['ARVADOS_API_HOST'],
-                              token='discovery-doc-only-no-token-needed',
-                              insecure=True,
-                              requestBuilder=req_builder)
-
-    def tearDown(cls):
-        run_test_server.reset()
+                            'error_token': '1234567890+12345678'}).encode())
 
     def test_new_api_objects_with_cache(self):
-        clients = [arvados.api('v1', cache=True,
-                               host=os.environ['ARVADOS_API_HOST'],
-                               token='discovery-doc-only-no-token-needed',
-                               insecure=True)
-                   for index in [0, 1]]
+        clients = [arvados.api('v1', cache=True) for index in [0, 1]]
         self.assertIsNot(*clients)
 
     def test_empty_list(self):
         answer = arvados.api('v1').humans().list(
-            filters=[['uuid', 'is', None]]).execute()
+            filters=[['uuid', '=', None]]).execute()
         self.assertEqual(answer['items_available'], len(answer['items']))
 
     def test_nonempty_list(self):
@@ -89,17 +70,197 @@ class ArvadosApiClientTest(unittest.TestCase):
                     new_item['created_at']))
 
     def test_exceptions_include_errors(self):
+        mock_responses = {
+            'arvados.humans.get': self.api_error_response(
+                422, "Bad UUID format", "Bad output format"),
+            }
+        req_builder = apiclient_http.RequestMockBuilder(mock_responses)
+        api = arvados.api('v1', requestBuilder=req_builder)
         with self.assertRaises(apiclient_errors.HttpError) as err_ctx:
-            self.api.humans().get(uuid='xyz-xyz-abcdef').execute()
+            api.humans().get(uuid='xyz-xyz-abcdef').execute()
         err_s = str(err_ctx.exception)
         for msg in ["Bad UUID format", "Bad output format"]:
             self.assertIn(msg, err_s)
 
+    @mock.patch('time.sleep')
+    def test_exceptions_include_request_id(self, sleep):
+        api = arvados.api('v1')
+        api.request_id='fake-request-id'
+        api._http.orig_http_request = mock.MagicMock()
+        api._http.orig_http_request.side_effect = socket.error('mock error')
+        caught = None
+        try:
+            api.users().current().execute()
+        except Exception as e:
+            caught = e
+        self.assertRegex(str(caught), r'fake-request-id')
+
     def test_exceptions_without_errors_have_basic_info(self):
+        mock_responses = {
+            'arvados.humans.delete': (
+                fake_httplib2_response(500, **self.ERROR_HEADERS),
+                b"")
+            }
+        req_builder = apiclient_http.RequestMockBuilder(mock_responses)
+        api = arvados.api('v1', requestBuilder=req_builder)
         with self.assertRaises(apiclient_errors.HttpError) as err_ctx:
-            self.api.humans().delete(uuid='xyz-xyz-abcdef').execute()
+            api.humans().delete(uuid='xyz-xyz-abcdef').execute()
         self.assertIn("500", str(err_ctx.exception))
 
+    def test_request_too_large(self):
+        api = arvados.api('v1')
+        maxsize = api._rootDesc.get('maxRequestSize', 0)
+        with self.assertRaises(apiclient_errors.MediaUploadSizeError):
+            text = "X" * maxsize
+            arvados.api('v1').collections().create(body={"manifest_text": text}).execute()
+
+    def test_default_request_timeout(self):
+        api = arvados.api('v1')
+        self.assertEqual(api._http.timeout, 300,
+            "Default timeout value should be 300")
+
+    def test_custom_request_timeout(self):
+        api = arvados.api('v1', timeout=1234)
+        self.assertEqual(api._http.timeout, 1234,
+            "Requested timeout value was 1234")
+
+    def test_ordered_json_model(self):
+        mock_responses = {
+            'arvados.humans.get': (
+                None,
+                json.dumps(collections.OrderedDict(
+                    (c, int(c, 16)) for c in string.hexdigits
+                )).encode(),
+            ),
+        }
+        req_builder = apiclient_http.RequestMockBuilder(mock_responses)
+        api = arvados.api('v1',
+                          requestBuilder=req_builder, model=OrderedJsonModel())
+        result = api.humans().get(uuid='test').execute()
+        self.assertEqual(string.hexdigits, ''.join(list(result.keys())))
+
+    def test_api_is_threadsafe(self):
+        api_kwargs = {
+            'host': os.environ['ARVADOS_API_HOST'],
+            'token': os.environ['ARVADOS_API_TOKEN'],
+            'insecure': True,
+        }
+        config_kwargs = {'apiconfig': os.environ}
+        for api_constructor, kwargs in [
+                (arvados.api, {}),
+                (arvados.api, api_kwargs),
+                (arvados.api_from_config, {}),
+                (arvados.api_from_config, config_kwargs),
+        ]:
+            sub_kwargs = "kwargs" if kwargs else "no kwargs"
+            with self.subTest(f"{api_constructor.__name__} with {sub_kwargs}"):
+                api_client = api_constructor('v1', **kwargs)
+                self.assertTrue(hasattr(api_client, 'localapi'),
+                                f"client missing localapi method")
+                self.assertTrue(hasattr(api_client, 'keep'),
+                                f"client missing keep attribute")
+
+
+class RetryREST(unittest.TestCase):
+    def setUp(self):
+        self.api = arvados.api('v1')
+        self.assertTrue(hasattr(self.api._http, 'orig_http_request'),
+                        "test doesn't know how to intercept HTTP requests")
+        self.mock_response = {'user': 'person'}
+        self.request_success = (fake_httplib2_response(200),
+                                json.dumps(self.mock_response))
+        self.api._http.orig_http_request = mock.MagicMock()
+        # All requests succeed by default. Tests override as needed.
+        self.api._http.orig_http_request.return_value = self.request_success
+
+    @mock.patch('time.sleep')
+    def test_socket_error_retry_get(self, sleep):
+        self.api._http.orig_http_request.side_effect = (
+            socket.error('mock error'),
+            self.request_success,
+        )
+        self.assertEqual(self.api.users().current().execute(),
+                         self.mock_response)
+        self.assertGreater(self.api._http.orig_http_request.call_count, 1,
+                           "client got the right response without retrying")
+        self.assertEqual(sleep.call_args_list,
+                         [mock.call(RETRY_DELAY_INITIAL)])
+
+    @mock.patch('time.sleep')
+    def test_same_automatic_request_id_on_retry(self, sleep):
+        self.api._http.orig_http_request.side_effect = (
+            socket.error('mock error'),
+            self.request_success,
+        )
+        self.api.users().current().execute()
+        calls = self.api._http.orig_http_request.call_args_list
+        self.assertEqual(len(calls), 2)
+        self.assertEqual(
+            calls[0][1]['headers']['X-Request-Id'],
+            calls[1][1]['headers']['X-Request-Id'])
+        self.assertRegex(calls[0][1]['headers']['X-Request-Id'], r'^req-[a-z0-9]{20}$')
+
+    @mock.patch('time.sleep')
+    def test_provided_request_id_on_retry(self, sleep):
+        self.api.request_id='fake-request-id'
+        self.api._http.orig_http_request.side_effect = (
+            socket.error('mock error'),
+            self.request_success,
+        )
+        self.api.users().current().execute()
+        calls = self.api._http.orig_http_request.call_args_list
+        self.assertEqual(len(calls), 2)
+        for call in calls:
+            self.assertEqual(call[1]['headers']['X-Request-Id'], 'fake-request-id')
+
+    @mock.patch('time.sleep')
+    def test_socket_error_retry_delay(self, sleep):
+        self.api._http.orig_http_request.side_effect = socket.error('mock')
+        self.api._http._retry_count = 3
+        with self.assertRaises(socket.error):
+            self.api.users().current().execute()
+        self.assertEqual(self.api._http.orig_http_request.call_count, 4)
+        self.assertEqual(sleep.call_args_list, [
+            mock.call(RETRY_DELAY_INITIAL),
+            mock.call(RETRY_DELAY_INITIAL * RETRY_DELAY_BACKOFF),
+            mock.call(RETRY_DELAY_INITIAL * RETRY_DELAY_BACKOFF**2),
+        ])
+
+    @mock.patch('time.time', side_effect=[i*2**20 for i in range(99)])
+    def test_close_old_connections_non_retryable(self, sleep):
+        self._test_connection_close(expect=1)
+
+    @mock.patch('time.time', side_effect=itertools.count())
+    def test_no_close_fresh_connections_non_retryable(self, sleep):
+        self._test_connection_close(expect=0)
+
+    @mock.patch('time.time', side_effect=itertools.count())
+    def test_override_max_idle_time(self, sleep):
+        self.api._http._max_keepalive_idle = 0
+        self._test_connection_close(expect=1)
+
+    def _test_connection_close(self, expect=0):
+        # Do two POST requests. The second one must close all
+        # connections +expect+ times.
+        self.api.users().create(body={}).execute()
+        mock_conns = {str(i): mock.MagicMock() for i in range(2)}
+        self.api._http.connections = mock_conns.copy()
+        self.api.users().create(body={}).execute()
+        for c in mock_conns.values():
+            self.assertEqual(c.close.call_count, expect)
+
+    @mock.patch('time.sleep')
+    def test_socket_error_no_retry_post(self, sleep):
+        self.api._http.orig_http_request.side_effect = (
+            socket.error('mock error'),
+            self.request_success,
+        )
+        with self.assertRaises(socket.error):
+            self.api.users().create(body={}).execute()
+        self.assertEqual(self.api._http.orig_http_request.call_count, 1,
+                         "client should try non-retryable method exactly once")
+        self.assertEqual(sleep.call_args_list, [])
+
 
 if __name__ == '__main__':
     unittest.main()