4823: Working on porting more StreamReader tests to ArvadosFile.

[arvados.git] / sdk / python / tests / arvados_testutil.py

diff --git a/sdk/python/tests/arvados_testutil.py b/sdk/python/tests/arvados_testutil.py
index 369d5618044036c30698bb263a2b1aa188b3621b..474c068b85d4eb05af274f381f0eb6be5a0789dd 100644 (file)
--- a/sdk/python/tests/arvados_testutil.py
+++ b/sdk/python/tests/arvados_testutil.py
@@ -1,11 +1,86 @@
 #!/usr/bin/env python
 
 import errno
+import hashlib
+import httplib
+import httplib2
+import io
+import mock
 import os
+import requests
 import shutil
 import tempfile
 import unittest
 
+# Use this hostname when you want to make sure the traffic will be
+# instantly refused.  100::/64 is a dedicated black hole.
+TEST_HOST = '100::'
+
+skip_sleep = mock.patch('time.sleep', lambda n: None)  # clown'll eat me
+
+# fake_httplib2_response and mock_responses
+# mock calls to httplib2.Http.request()
+def fake_httplib2_response(code, **headers):
+    headers.update(status=str(code),
+                   reason=httplib.responses.get(code, "Unknown Response"))
+    return httplib2.Response(headers)
+
+def mock_responses(body, *codes, **headers):
+    return mock.patch('httplib2.Http.request', side_effect=(
+            (fake_httplib2_response(code, **headers), body) for code in codes))
+
+# fake_requests_response, mock_get_responses and mock_put_responses
+# mock calls to requests.get() and requests.put()
+def fake_requests_response(code, body, **headers):
+    r = requests.Response()
+    r.status_code = code
+    r.reason = httplib.responses.get(code, "Unknown Response")
+    r.headers = headers
+    r.raw = io.BytesIO(body)
+    return r
+
+def mock_put_responses(body, *codes, **headers):
+    m = mock.MagicMock()
+    if isinstance(body, tuple):
+        codes = list(codes)
+        codes.insert(0, body)
+        m.return_value.put.side_effect = (fake_requests_response(code, b, **headers) for b, code in codes)
+    else:
+        m.return_value.put.side_effect = (fake_requests_response(code, body, **headers) for code in codes)
+    return mock.patch('requests.Session', m)
+
+def mock_get_responses(body, *codes, **headers):
+    m = mock.MagicMock()
+    m.return_value.get.side_effect = (fake_requests_response(code, body, **headers) for code in codes)
+    return mock.patch('requests.Session', m)
+
+def mock_get(side_effect):
+    m = mock.MagicMock()
+    m.return_value.get.side_effect = side_effect
+    return mock.patch('requests.Session', m)
+
+def mock_put(side_effect):
+    m = mock.MagicMock()
+    m.return_value.put.side_effect = side_effect
+    return mock.patch('requests.Session', m)
+
+class MockStreamReader(object):
+    def __init__(self, name='.', *data):
+        self._name = name
+        self._data = ''.join(data)
+        self._data_locators = ['{}+{}'.format(hashlib.md5(d).hexdigest(),
+                                              len(d)) for d in data]
+        self.num_retries = 0
+
+    def name(self):
+        return self._name
+
+    def readfrom(self, start, size, num_retries=None):
+        self._readfrom(start, size, num_retries=num_retries)
+
+    def _readfrom(self, start, size, num_retries=None):
+        return self._data[start:start + size]
+
 class ArvadosBaseTestCase(unittest.TestCase):
     # This class provides common utility functions for our tests.