diff --git a/framework/test/monorailcontext_test.py b/framework/test/monorailcontext_test.py
new file mode 100644
index 0000000..ed93920
--- /dev/null
+++ b/framework/test/monorailcontext_test.py
@@ -0,0 +1,89 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+"""Tests for MonorailContext."""
+from __future__ import print_function
+from __future__ import division
+from __future__ import absolute_import
+
+import unittest
+
+import mox
+
+from framework import authdata
+from framework import monorailcontext
+from framework import permissions
+from framework import profiler
+from framework import template_helpers
+from framework import sql
+from services import service_manager
+from testing import fake
+
+
+class MonorailContextTest(unittest.TestCase):
+
+  def setUp(self):
+    self.mox = mox.Mox()
+    self.cnxn = fake.MonorailConnection()
+    self.services = service_manager.Services(
+        user=fake.UserService(),
+        usergroup=fake.UserGroupService(),
+        project=fake.ProjectService())
+    self.project = self.services.project.TestAddProject(
+        'proj', project_id=789, owner_ids=[111])
+    self.user = self.services.user.TestAddUser('owner@example.com', 111)
+
+  def tearDown(self):
+    self.mox.UnsetStubs()
+    self.mox.ResetAll()
+
+  def testConstructor_PassingAuthAndPerms(self):
+    """We can easily make an mc for testing."""
+    auth = authdata.AuthData(user_id=111, email='owner@example.com')
+    mc = monorailcontext.MonorailContext(
+      None, cnxn=self.cnxn, auth=auth, perms=permissions.USER_PERMISSIONSET)
+    self.assertEqual(self.cnxn, mc.cnxn)
+    self.assertEqual(auth, mc.auth)
+    self.assertEqual(permissions.USER_PERMISSIONSET, mc.perms)
+    self.assertTrue(isinstance(mc.profiler, profiler.Profiler))
+    self.assertEqual([], mc.warnings)
+    self.assertTrue(isinstance(mc.errors, template_helpers.EZTError))
+
+    mc.CleanUp()
+    self.assertIsNone(mc.cnxn)
+
+  def testConstructor_AsUsedInApp(self):
+    """We can make an mc like it is done in the app or a test."""
+    self.mox.StubOutClassWithMocks(sql, 'MonorailConnection')
+    mock_cnxn = sql.MonorailConnection()
+    mock_cnxn.Close()
+    requester = 'new-user@example.com'
+    self.mox.ReplayAll()
+
+    mc = monorailcontext.MonorailContext(self.services, requester=requester)
+    mc.LookupLoggedInUserPerms(self.project)
+    self.assertEqual(mock_cnxn, mc.cnxn)
+    self.assertEqual(requester, mc.auth.email)
+    self.assertEqual(permissions.USER_PERMISSIONSET, mc.perms)
+    self.assertTrue(isinstance(mc.profiler, profiler.Profiler))
+    self.assertEqual([], mc.warnings)
+    self.assertTrue(isinstance(mc.errors, template_helpers.EZTError))
+
+    mc.CleanUp()
+    self.assertIsNone(mc.cnxn)
+
+    # Double Cleanup or Cleanup with no cnxn is not a crash.
+    mc.CleanUp()
+    self.assertIsNone(mc.cnxn)
+
+  def testRepr(self):
+    """We get nice debugging strings."""
+    auth = authdata.AuthData(user_id=111, email='owner@example.com')
+    mc = monorailcontext.MonorailContext(
+      None, cnxn=self.cnxn, auth=auth, perms=permissions.USER_PERMISSIONSET)
+    repr_str = '%r' % mc
+    self.assertTrue(repr_str.startswith('MonorailContext('))
+    self.assertIn('owner@example.com', repr_str)
+    self.assertIn('view', repr_str)