diff --git a/services/test/config_svc_test.py b/services/test/config_svc_test.py
new file mode 100644
index 0000000..6d1d941
--- /dev/null
+++ b/services/test/config_svc_test.py
@@ -0,0 +1,1143 @@
+# Copyright 2016 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
+
+"""Unit tests for config_svc module."""
+from __future__ import print_function
+from __future__ import division
+from __future__ import absolute_import
+
+import re
+import unittest
+import logging
+import mock
+
+import mox
+
+from google.appengine.api import memcache
+from google.appengine.ext import testbed
+
+from framework import exceptions
+from framework import framework_constants
+from framework import sql
+from proto import tracker_pb2
+from services import config_svc
+from services import template_svc
+from testing import fake
+from tracker import tracker_bizobj
+from tracker import tracker_constants
+
+LABEL_ROW_SHARDS = config_svc.LABEL_ROW_SHARDS
+
+
+def MakeConfigService(cache_manager, my_mox):
+  config_service = config_svc.ConfigService(cache_manager)
+  for table_var in ['projectissueconfig_tbl', 'statusdef_tbl', 'labeldef_tbl',
+                    'fielddef_tbl', 'fielddef2admin_tbl', 'fielddef2editor_tbl',
+                    'componentdef_tbl', 'component2admin_tbl',
+                    'component2cc_tbl', 'component2label_tbl',
+                    'approvaldef2approver_tbl', 'approvaldef2survey_tbl']:
+    setattr(config_service, table_var, my_mox.CreateMock(sql.SQLTableManager))
+
+  return config_service
+
+
+class LabelRowTwoLevelCacheTest(unittest.TestCase):
+
+  def setUp(self):
+    self.mox = mox.Mox()
+    self.cnxn = 'fake connection'
+    self.cache_manager = fake.CacheManager()
+    self.config_service = MakeConfigService(self.cache_manager, self.mox)
+    self.label_row_2lc = self.config_service.label_row_2lc
+
+    self.rows = [(1, 789, 1, 'A', 'doc', False),
+                 (2, 789, 2, 'B', 'doc', False),
+                 (3, 678, 1, 'C', 'doc', True),
+                 (4, 678, None, 'D', 'doc', False)]
+
+  def tearDown(self):
+    self.mox.UnsetStubs()
+    self.mox.ResetAll()
+
+  def testDeserializeLabelRows_Empty(self):
+    label_row_dict = self.label_row_2lc._DeserializeLabelRows([])
+    self.assertEqual({}, label_row_dict)
+
+  def testDeserializeLabelRows_Normal(self):
+    label_rows_dict = self.label_row_2lc._DeserializeLabelRows(self.rows)
+    expected = {
+        (789, 1): [(1, 789, 1, 'A', 'doc', False)],
+        (789, 2): [(2, 789, 2, 'B', 'doc', False)],
+        (678, 3): [(3, 678, 1, 'C', 'doc', True)],
+        (678, 4): [(4, 678, None, 'D', 'doc', False)],
+        }
+    self.assertEqual(expected, label_rows_dict)
+
+  def SetUpFetchItems(self, keys, rows):
+    for (project_id, shard_id) in keys:
+      sharded_rows = [row for row in rows
+                      if row[0] % LABEL_ROW_SHARDS == shard_id]
+      self.config_service.labeldef_tbl.Select(
+        self.cnxn, cols=config_svc.LABELDEF_COLS, project_id=project_id,
+        where=[('id %% %s = %s', [LABEL_ROW_SHARDS, shard_id])]).AndReturn(
+        sharded_rows)
+
+  def testFetchItems(self):
+    keys = [(567, 0), (678, 0), (789, 0),
+            (567, 1), (678, 1), (789, 1),
+            (567, 2), (678, 2), (789, 2),
+            (567, 3), (678, 3), (789, 3),
+            (567, 4), (678, 4), (789, 4),
+            ]
+    self.SetUpFetchItems(keys, self.rows)
+    self.mox.ReplayAll()
+    label_rows_dict = self.label_row_2lc.FetchItems(self.cnxn, keys)
+    self.mox.VerifyAll()
+    expected = {
+        (567, 0): [],
+        (678, 0): [],
+        (789, 0): [],
+        (567, 1): [],
+        (678, 1): [],
+        (789, 1): [(1, 789, 1, 'A', 'doc', False)],
+        (567, 2): [],
+        (678, 2): [],
+        (789, 2): [(2, 789, 2, 'B', 'doc', False)],
+        (567, 3): [],
+        (678, 3): [(3, 678, 1, 'C', 'doc', True)],
+        (789, 3): [],
+        (567, 4): [],
+        (678, 4): [(4, 678, None, 'D', 'doc', False)],
+        (789, 4): [],
+        }
+    self.assertEqual(expected, label_rows_dict)
+
+
+class StatusRowTwoLevelCacheTest(unittest.TestCase):
+
+  def setUp(self):
+    self.mox = mox.Mox()
+    self.cnxn = 'fake connection'
+    self.cache_manager = fake.CacheManager()
+    self.config_service = MakeConfigService(self.cache_manager, self.mox)
+    self.status_row_2lc = self.config_service.status_row_2lc
+
+    self.rows = [(1, 789, 1, 'A', True, 'doc', False),
+                 (2, 789, 2, 'B', False, 'doc', False),
+                 (3, 678, 1, 'C', True, 'doc', True),
+                 (4, 678, None, 'D', True, 'doc', False)]
+
+  def tearDown(self):
+    self.mox.UnsetStubs()
+    self.mox.ResetAll()
+
+  def testDeserializeStatusRows_Empty(self):
+    status_row_dict = self.status_row_2lc._DeserializeStatusRows([])
+    self.assertEqual({}, status_row_dict)
+
+  def testDeserializeStatusRows_Normal(self):
+    status_rows_dict = self.status_row_2lc._DeserializeStatusRows(self.rows)
+    expected = {
+        678: [(3, 678, 1, 'C', True, 'doc', True),
+              (4, 678, None, 'D', True, 'doc', False)],
+        789: [(1, 789, 1, 'A', True, 'doc', False),
+              (2, 789, 2, 'B', False, 'doc', False)],
+        }
+    self.assertEqual(expected, status_rows_dict)
+
+  def SetUpFetchItems(self, keys, rows):
+    self.config_service.statusdef_tbl.Select(
+        self.cnxn, cols=config_svc.STATUSDEF_COLS, project_id=keys,
+        order_by=[('rank DESC', []), ('status DESC', [])]).AndReturn(
+            rows)
+
+  def testFetchItems(self):
+    keys = [567, 678, 789]
+    self.SetUpFetchItems(keys, self.rows)
+    self.mox.ReplayAll()
+    status_rows_dict = self.status_row_2lc.FetchItems(self.cnxn, keys)
+    self.mox.VerifyAll()
+    expected = {
+        567: [],
+        678: [(3, 678, 1, 'C', True, 'doc', True),
+              (4, 678, None, 'D', True, 'doc', False)],
+        789: [(1, 789, 1, 'A', True, 'doc', False),
+              (2, 789, 2, 'B', False, 'doc', False)],
+        }
+    self.assertEqual(expected, status_rows_dict)
+
+
+class ConfigRowTwoLevelCacheTest(unittest.TestCase):
+
+  def setUp(self):
+    self.mox = mox.Mox()
+    self.cnxn = 'fake connection'
+    self.cache_manager = fake.CacheManager()
+    self.config_service = MakeConfigService(self.cache_manager, self.mox)
+    self.config_2lc = self.config_service.config_2lc
+
+    self.config_rows = [
+      (789, 'Duplicate', 'Pri Type', 1, 2,
+       'Type Pri Summary', '-Pri', 'Mstone', 'Owner',
+       '', None)]
+    self.statusdef_rows = [(1, 789, 1, 'New', True, 'doc', False),
+                           (2, 789, 2, 'Fixed', False, 'doc', False)]
+    self.labeldef_rows = [(1, 789, 1, 'Security', 'doc', False),
+                          (2, 789, 2, 'UX', 'doc', False)]
+    self.fielddef_rows = [
+        (
+            1, 789, None, 'Field', 'INT_TYPE', 'Defect', '', False, False,
+            False, 1, 99, None, '', '', None, 'NEVER', 'no_action', 'doc',
+            False, None, False, False)
+    ]
+    self.approvaldef2approver_rows = [(2, 101, 789), (2, 102, 789)]
+    self.approvaldef2survey_rows = [(2, 'Q1\nQ2\nQ3', 789)]
+    self.fielddef2admin_rows = [(1, 111), (1, 222)]
+    self.fielddef2editor_rows = [(1, 111), (1, 222), (1, 333)]
+    self.componentdef_rows = []
+    self.component2admin_rows = []
+    self.component2cc_rows = []
+    self.component2label_rows = []
+
+  def tearDown(self):
+    self.mox.UnsetStubs()
+    self.mox.ResetAll()
+
+  def testDeserializeIssueConfigs_Empty(self):
+    config_dict = self.config_2lc._DeserializeIssueConfigs(
+        [], [], [], [], [], [], [], [], [], [], [], [])
+    self.assertEqual({}, config_dict)
+
+  def testDeserializeIssueConfigs_Normal(self):
+    config_dict = self.config_2lc._DeserializeIssueConfigs(
+        self.config_rows, self.statusdef_rows, self.labeldef_rows,
+        self.fielddef_rows, self.fielddef2admin_rows, self.fielddef2editor_rows,
+        self.componentdef_rows, self.component2admin_rows,
+        self.component2cc_rows, self.component2label_rows,
+        self.approvaldef2approver_rows, self.approvaldef2survey_rows)
+    self.assertItemsEqual([789], list(config_dict.keys()))
+    config = config_dict[789]
+    self.assertEqual(789, config.project_id)
+    self.assertEqual(['Duplicate'], config.statuses_offer_merge)
+    self.assertEqual(len(self.labeldef_rows), len(config.well_known_labels))
+    self.assertEqual(len(self.statusdef_rows), len(config.well_known_statuses))
+    self.assertEqual(len(self.fielddef_rows), len(config.field_defs))
+    self.assertEqual(len(self.componentdef_rows), len(config.component_defs))
+    self.assertEqual(
+        len(self.fielddef2admin_rows), len(config.field_defs[0].admin_ids))
+    self.assertEqual(
+        len(self.fielddef2editor_rows), len(config.field_defs[0].editor_ids))
+    self.assertEqual(len(self.approvaldef2approver_rows),
+                     len(config.approval_defs[0].approver_ids))
+    self.assertEqual(config.approval_defs[0].survey, 'Q1\nQ2\nQ3')
+
+  def SetUpFetchConfigs(self, project_ids):
+    self.config_service.projectissueconfig_tbl.Select(
+        self.cnxn, cols=config_svc.PROJECTISSUECONFIG_COLS,
+        project_id=project_ids).AndReturn(self.config_rows)
+
+    self.config_service.statusdef_tbl.Select(
+        self.cnxn, cols=config_svc.STATUSDEF_COLS, project_id=project_ids,
+        where=[('rank IS NOT NULL', [])], order_by=[('rank', [])]).AndReturn(
+            self.statusdef_rows)
+
+    self.config_service.labeldef_tbl.Select(
+        self.cnxn, cols=config_svc.LABELDEF_COLS, project_id=project_ids,
+        where=[('rank IS NOT NULL', [])], order_by=[('rank', [])]).AndReturn(
+            self.labeldef_rows)
+
+    self.config_service.approvaldef2approver_tbl.Select(
+        self.cnxn, cols=config_svc.APPROVALDEF2APPROVER_COLS,
+        project_id=project_ids).AndReturn(self.approvaldef2approver_rows)
+    self.config_service.approvaldef2survey_tbl.Select(
+        self.cnxn, cols=config_svc.APPROVALDEF2SURVEY_COLS,
+        project_id=project_ids).AndReturn(self.approvaldef2survey_rows)
+
+    self.config_service.fielddef_tbl.Select(
+        self.cnxn, cols=config_svc.FIELDDEF_COLS, project_id=project_ids,
+        order_by=[('field_name', [])]).AndReturn(self.fielddef_rows)
+    field_ids = [row[0] for row in self.fielddef_rows]
+    self.config_service.fielddef2admin_tbl.Select(
+        self.cnxn, cols=config_svc.FIELDDEF2ADMIN_COLS,
+        field_id=field_ids).AndReturn(self.fielddef2admin_rows)
+    self.config_service.fielddef2editor_tbl.Select(
+        self.cnxn, cols=config_svc.FIELDDEF2EDITOR_COLS,
+        field_id=field_ids).AndReturn(self.fielddef2editor_rows)
+
+    self.config_service.componentdef_tbl.Select(
+        self.cnxn, cols=config_svc.COMPONENTDEF_COLS, project_id=project_ids,
+        is_deleted=False,
+        order_by=[('path', [])]).AndReturn(self.componentdef_rows)
+
+  def testFetchConfigs(self):
+    keys = [789]
+    self.SetUpFetchConfigs(keys)
+    self.mox.ReplayAll()
+    config_dict = self.config_2lc._FetchConfigs(self.cnxn, keys)
+    self.mox.VerifyAll()
+    self.assertItemsEqual(keys, list(config_dict.keys()))
+
+  def testFetchItems(self):
+    keys = [678, 789]
+    self.SetUpFetchConfigs(keys)
+    self.mox.ReplayAll()
+    config_dict = self.config_2lc.FetchItems(self.cnxn, keys)
+    self.mox.VerifyAll()
+    self.assertItemsEqual(keys, list(config_dict.keys()))
+
+
+class ConfigServiceTest(unittest.TestCase):
+
+  def setUp(self):
+    self.testbed = testbed.Testbed()
+    self.testbed.activate()
+    self.testbed.init_memcache_stub()
+
+    self.mox = mox.Mox()
+    self.cnxn = self.mox.CreateMock(sql.MonorailConnection)
+    self.cache_manager = fake.CacheManager()
+    self.config_service = MakeConfigService(self.cache_manager, self.mox)
+
+  def tearDown(self):
+    self.testbed.deactivate()
+    self.mox.UnsetStubs()
+    self.mox.ResetAll()
+
+  ### Label lookups
+
+  def testGetLabelDefRows_Hit(self):
+    self.config_service.label_row_2lc.CacheItem((789, 0), [])
+    self.config_service.label_row_2lc.CacheItem((789, 1), [])
+    self.config_service.label_row_2lc.CacheItem((789, 2), [])
+    self.config_service.label_row_2lc.CacheItem(
+        (789, 3), [(3, 678, 1, 'C', 'doc', True)])
+    self.config_service.label_row_2lc.CacheItem(
+        (789, 4), [(4, 678, None, 'D', 'doc', False)])
+    self.config_service.label_row_2lc.CacheItem((789, 5), [])
+    self.config_service.label_row_2lc.CacheItem((789, 6), [])
+    self.config_service.label_row_2lc.CacheItem((789, 7), [])
+    self.config_service.label_row_2lc.CacheItem((789, 8), [])
+    self.config_service.label_row_2lc.CacheItem((789, 9), [])
+    actual = self.config_service.GetLabelDefRows(self.cnxn, 789)
+    expected = [
+      (3, 678, 1, 'C', 'doc', True),
+      (4, 678, None, 'D', 'doc', False)]
+    self.assertEqual(expected, actual)
+
+  def SetUpGetLabelDefRowsAnyProject(self, rows):
+    self.config_service.labeldef_tbl.Select(
+        self.cnxn, cols=config_svc.LABELDEF_COLS, where=None,
+        order_by=[('rank DESC', []), ('label DESC', [])]).AndReturn(
+            rows)
+
+  def testGetLabelDefRowsAnyProject(self):
+    rows = 'foo'
+    self.SetUpGetLabelDefRowsAnyProject(rows)
+    self.mox.ReplayAll()
+    actual = self.config_service.GetLabelDefRowsAnyProject(self.cnxn)
+    self.mox.VerifyAll()
+    self.assertEqual(rows, actual)
+
+  def testDeserializeLabels(self):
+    labeldef_rows = [(1, 789, 1, 'Security', 'doc', False),
+                     (2, 789, 2, 'UX', 'doc', True)]
+    id_to_name, name_to_id = self.config_service._DeserializeLabels(
+        labeldef_rows)
+    self.assertEqual({1: 'Security', 2: 'UX'}, id_to_name)
+    self.assertEqual({'security': 1, 'ux': 2}, name_to_id)
+
+  def testEnsureLabelCacheEntry_Hit(self):
+    label_dicts = 'foo'
+    self.config_service.label_cache.CacheItem(789, label_dicts)
+    # No mock calls set up because none are needed.
+    self.mox.ReplayAll()
+    self.config_service._EnsureLabelCacheEntry(self.cnxn, 789)
+    self.mox.VerifyAll()
+
+  def SetUpEnsureLabelCacheEntry_Miss(self, project_id, rows):
+    for shard_id in range(0, LABEL_ROW_SHARDS):
+      shard_rows = [row for row in rows
+                    if row[0] % LABEL_ROW_SHARDS == shard_id]
+      self.config_service.labeldef_tbl.Select(
+        self.cnxn, cols=config_svc.LABELDEF_COLS, project_id=project_id,
+        where=[('id %% %s = %s', [LABEL_ROW_SHARDS, shard_id])]).AndReturn(
+            shard_rows)
+
+  def testEnsureLabelCacheEntry_Miss(self):
+    labeldef_rows = [(1, 789, 1, 'Security', 'doc', False),
+                     (2, 789, 2, 'UX', 'doc', True)]
+    self.SetUpEnsureLabelCacheEntry_Miss(789, labeldef_rows)
+    self.mox.ReplayAll()
+    self.config_service._EnsureLabelCacheEntry(self.cnxn, 789)
+    self.mox.VerifyAll()
+    label_dicts = {1: 'Security', 2: 'UX'}, {'security': 1, 'ux': 2}
+    self.assertEqual(label_dicts, self.config_service.label_cache.GetItem(789))
+
+  def testLookupLabel_Hit(self):
+    label_dicts = {1: 'Security', 2: 'UX'}, {'security': 1, 'ux': 2}
+    self.config_service.label_cache.CacheItem(789, label_dicts)
+    # No mock calls set up because none are needed.
+    self.mox.ReplayAll()
+    self.assertEqual(
+        'Security', self.config_service.LookupLabel(self.cnxn, 789, 1))
+    self.assertEqual(
+        'UX', self.config_service.LookupLabel(self.cnxn, 789, 2))
+    self.mox.VerifyAll()
+
+  def testLookupLabelID_Hit(self):
+    label_dicts = {1: 'Security', 2: 'UX'}, {'security': 1, 'ux': 2}
+    self.config_service.label_cache.CacheItem(789, label_dicts)
+    # No mock calls set up because none are needed.
+    self.mox.ReplayAll()
+    self.assertEqual(
+        1, self.config_service.LookupLabelID(self.cnxn, 789, 'Security'))
+    self.assertEqual(
+        2, self.config_service.LookupLabelID(self.cnxn, 789, 'UX'))
+    self.mox.VerifyAll()
+
+  def testLookupLabelID_MissAndDoubleCheck(self):
+    label_dicts = {1: 'Security', 2: 'UX'}, {'security': 1, 'ux': 2}
+    self.config_service.label_cache.CacheItem(789, label_dicts)
+
+    self.config_service.labeldef_tbl.Select(
+        self.cnxn, cols=['id'], project_id=789,
+        where=[('LOWER(label) = %s', ['newlabel'])],
+        limit=1).AndReturn([(3,)])
+    self.mox.ReplayAll()
+    self.assertEqual(
+        3, self.config_service.LookupLabelID(self.cnxn, 789, 'NewLabel'))
+    self.mox.VerifyAll()
+
+  def testLookupLabelID_MissAutocreate(self):
+    label_dicts = {1: 'Security', 2: 'UX'}, {'security': 1, 'ux': 2}
+    self.config_service.label_cache.CacheItem(789, label_dicts)
+
+    self.config_service.labeldef_tbl.Select(
+        self.cnxn, cols=['id'], project_id=789,
+        where=[('LOWER(label) = %s', ['newlabel'])],
+        limit=1).AndReturn([])
+    self.config_service.labeldef_tbl.InsertRow(
+        self.cnxn, project_id=789, label='NewLabel').AndReturn(3)
+    self.mox.ReplayAll()
+    self.assertEqual(
+        3, self.config_service.LookupLabelID(self.cnxn, 789, 'NewLabel'))
+    self.mox.VerifyAll()
+
+  def testLookupLabelID_MissDontAutocreate(self):
+    label_dicts = {1: 'Security', 2: 'UX'}, {'security': 1, 'ux': 2}
+    self.config_service.label_cache.CacheItem(789, label_dicts)
+
+    self.config_service.labeldef_tbl.Select(
+        self.cnxn, cols=['id'], project_id=789,
+        where=[('LOWER(label) = %s', ['newlabel'])],
+        limit=1).AndReturn([])
+    self.mox.ReplayAll()
+    self.assertIsNone(self.config_service.LookupLabelID(
+        self.cnxn, 789, 'NewLabel', autocreate=False))
+    self.mox.VerifyAll()
+
+  def testLookupLabelIDs_Hit(self):
+    label_dicts = {1: 'Security', 2: 'UX'}, {'security': 1, 'ux': 2}
+    self.config_service.label_cache.CacheItem(789, label_dicts)
+    # No mock calls set up because none are needed.
+    self.mox.ReplayAll()
+    self.assertEqual(
+        [1, 2],
+        self.config_service.LookupLabelIDs(self.cnxn, 789, ['Security', 'UX']))
+    self.mox.VerifyAll()
+
+  def testLookupIDsOfLabelsMatching_Hit(self):
+    label_dicts = {1: 'Security', 2: 'UX'}, {'security': 1, 'ux': 2}
+    self.config_service.label_cache.CacheItem(789, label_dicts)
+    # No mock calls set up because none are needed.
+    self.mox.ReplayAll()
+    self.assertItemsEqual(
+        [1],
+        self.config_service.LookupIDsOfLabelsMatching(
+            self.cnxn, 789, re.compile('Sec.*')))
+    self.assertItemsEqual(
+        [1, 2],
+        self.config_service.LookupIDsOfLabelsMatching(
+            self.cnxn, 789, re.compile('.*')))
+    self.assertItemsEqual(
+        [],
+        self.config_service.LookupIDsOfLabelsMatching(
+            self.cnxn, 789, re.compile('Zzzzz.*')))
+    self.mox.VerifyAll()
+
+  def SetUpLookupLabelIDsAnyProject(self, label, id_rows):
+    self.config_service.labeldef_tbl.Select(
+        self.cnxn, cols=['id'], label=label).AndReturn(id_rows)
+
+  def testLookupLabelIDsAnyProject(self):
+    self.SetUpLookupLabelIDsAnyProject('Security', [(1,)])
+    self.mox.ReplayAll()
+    actual = self.config_service.LookupLabelIDsAnyProject(
+        self.cnxn, 'Security')
+    self.mox.VerifyAll()
+    self.assertEqual([1], actual)
+
+  def SetUpLookupIDsOfLabelsMatchingAnyProject(self, id_label_rows):
+    self.config_service.labeldef_tbl.Select(
+        self.cnxn, cols=['id', 'label']).AndReturn(id_label_rows)
+
+  def testLookupIDsOfLabelsMatchingAnyProject(self):
+    id_label_rows = [(1, 'Security'), (2, 'UX')]
+    self.SetUpLookupIDsOfLabelsMatchingAnyProject(id_label_rows)
+    self.mox.ReplayAll()
+    actual = self.config_service.LookupIDsOfLabelsMatchingAnyProject(
+        self.cnxn, re.compile('(Sec|Zzz).*'))
+    self.mox.VerifyAll()
+    self.assertEqual([1], actual)
+
+  ### Status lookups
+
+  def testGetStatusDefRows(self):
+    rows = 'foo'
+    self.config_service.status_row_2lc.CacheItem(789, rows)
+    actual = self.config_service.GetStatusDefRows(self.cnxn, 789)
+    self.assertEqual(rows, actual)
+
+  def SetUpGetStatusDefRowsAnyProject(self, rows):
+    self.config_service.statusdef_tbl.Select(
+        self.cnxn, cols=config_svc.STATUSDEF_COLS,
+        order_by=[('rank DESC', []), ('status DESC', [])]).AndReturn(
+            rows)
+
+  def testGetStatusDefRowsAnyProject(self):
+    rows = 'foo'
+    self.SetUpGetStatusDefRowsAnyProject(rows)
+    self.mox.ReplayAll()
+    actual = self.config_service.GetStatusDefRowsAnyProject(self.cnxn)
+    self.mox.VerifyAll()
+    self.assertEqual(rows, actual)
+
+  def testDeserializeStatuses(self):
+    statusdef_rows = [(1, 789, 1, 'New', True, 'doc', False),
+                      (2, 789, 2, 'Fixed', False, 'doc', True)]
+    actual = self.config_service._DeserializeStatuses(statusdef_rows)
+    id_to_name, name_to_id, closed_ids = actual
+    self.assertEqual({1: 'New', 2: 'Fixed'}, id_to_name)
+    self.assertEqual({'new': 1, 'fixed': 2}, name_to_id)
+    self.assertEqual([2], closed_ids)
+
+  def testEnsureStatusCacheEntry_Hit(self):
+    status_dicts = 'foo'
+    self.config_service.status_cache.CacheItem(789, status_dicts)
+    # No mock calls set up because none are needed.
+    self.mox.ReplayAll()
+    self.config_service._EnsureStatusCacheEntry(self.cnxn, 789)
+    self.mox.VerifyAll()
+
+  def SetUpEnsureStatusCacheEntry_Miss(self, keys, rows):
+    self.config_service.statusdef_tbl.Select(
+        self.cnxn, cols=config_svc.STATUSDEF_COLS, project_id=keys,
+        order_by=[('rank DESC', []), ('status DESC', [])]).AndReturn(
+            rows)
+
+  def testEnsureStatusCacheEntry_Miss(self):
+    statusdef_rows = [(1, 789, 1, 'New', True, 'doc', False),
+                      (2, 789, 2, 'Fixed', False, 'doc', True)]
+    self.SetUpEnsureStatusCacheEntry_Miss([789], statusdef_rows)
+    self.mox.ReplayAll()
+    self.config_service._EnsureStatusCacheEntry(self.cnxn, 789)
+    self.mox.VerifyAll()
+    status_dicts = {1: 'New', 2: 'Fixed'}, {'new': 1, 'fixed': 2}, [2]
+    self.assertEqual(
+        status_dicts, self.config_service.status_cache.GetItem(789))
+
+  def testLookupStatus_Hit(self):
+    status_dicts = {1: 'New', 2: 'Fixed'}, {'new': 1, 'fixed': 2}, [2]
+    self.config_service.status_cache.CacheItem(789, status_dicts)
+    # No mock calls set up because none are needed.
+    self.mox.ReplayAll()
+    self.assertEqual(
+        'New', self.config_service.LookupStatus(self.cnxn, 789, 1))
+    self.assertEqual(
+        'Fixed', self.config_service.LookupStatus(self.cnxn, 789, 2))
+    self.mox.VerifyAll()
+
+  def testLookupStatusID_Hit(self):
+    status_dicts = {1: 'New', 2: 'Fixed'}, {'new': 1, 'fixed': 2}, [2]
+    self.config_service.status_cache.CacheItem(789, status_dicts)
+    # No mock calls set up because none are needed.
+    self.mox.ReplayAll()
+    self.assertEqual(
+        1, self.config_service.LookupStatusID(self.cnxn, 789, 'New'))
+    self.assertEqual(
+        2, self.config_service.LookupStatusID(self.cnxn, 789, 'Fixed'))
+    self.mox.VerifyAll()
+
+  def testLookupStatusIDs_Hit(self):
+    status_dicts = {1: 'New', 2: 'Fixed'}, {'new': 1, 'fixed': 2}, [2]
+    self.config_service.status_cache.CacheItem(789, status_dicts)
+    # No mock calls set up because none are needed.
+    self.mox.ReplayAll()
+    self.assertEqual(
+        [1, 2],
+        self.config_service.LookupStatusIDs(self.cnxn, 789, ['New', 'Fixed']))
+    self.mox.VerifyAll()
+
+  def testLookupClosedStatusIDs_Hit(self):
+    status_dicts = {1: 'New', 2: 'Fixed'}, {'new': 1, 'fixed': 2}, [2]
+    self.config_service.status_cache.CacheItem(789, status_dicts)
+    # No mock calls set up because none are needed.
+    self.mox.ReplayAll()
+    self.assertEqual(
+        [2],
+        self.config_service.LookupClosedStatusIDs(self.cnxn, 789))
+    self.mox.VerifyAll()
+
+  def SetUpLookupClosedStatusIDsAnyProject(self, id_rows):
+    self.config_service.statusdef_tbl.Select(
+        self.cnxn, cols=['id'], means_open=False).AndReturn(
+            id_rows)
+
+  def testLookupClosedStatusIDsAnyProject(self):
+    self.SetUpLookupClosedStatusIDsAnyProject([(2,)])
+    self.mox.ReplayAll()
+    actual = self.config_service.LookupClosedStatusIDsAnyProject(self.cnxn)
+    self.mox.VerifyAll()
+    self.assertEqual([2], actual)
+
+  def SetUpLookupStatusIDsAnyProject(self, status, id_rows):
+    self.config_service.statusdef_tbl.Select(
+        self.cnxn, cols=['id'], status=status).AndReturn(id_rows)
+
+  def testLookupStatusIDsAnyProject(self):
+    self.SetUpLookupStatusIDsAnyProject('New', [(1,)])
+    self.mox.ReplayAll()
+    actual = self.config_service.LookupStatusIDsAnyProject(self.cnxn, 'New')
+    self.mox.VerifyAll()
+    self.assertEqual([1], actual)
+
+  ### Issue tracker configuration objects
+
+  def SetUpGetProjectConfigs(self, project_ids):
+    self.config_service.projectissueconfig_tbl.Select(
+        self.cnxn, cols=config_svc.PROJECTISSUECONFIG_COLS,
+        project_id=project_ids).AndReturn([])
+    self.config_service.statusdef_tbl.Select(
+        self.cnxn, cols=config_svc.STATUSDEF_COLS,
+        project_id=project_ids, where=[('rank IS NOT NULL', [])],
+        order_by=[('rank', [])]).AndReturn([])
+    self.config_service.labeldef_tbl.Select(
+        self.cnxn, cols=config_svc.LABELDEF_COLS,
+        project_id=project_ids, where=[('rank IS NOT NULL', [])],
+        order_by=[('rank', [])]).AndReturn([])
+    self.config_service.approvaldef2approver_tbl.Select(
+        self.cnxn, cols=config_svc.APPROVALDEF2APPROVER_COLS,
+        project_id=project_ids).AndReturn([])
+    self.config_service.approvaldef2survey_tbl.Select(
+        self.cnxn, cols=config_svc.APPROVALDEF2SURVEY_COLS,
+        project_id=project_ids).AndReturn([])
+    self.config_service.fielddef_tbl.Select(
+        self.cnxn, cols=config_svc.FIELDDEF_COLS,
+        project_id=project_ids, order_by=[('field_name', [])]).AndReturn([])
+    self.config_service.componentdef_tbl.Select(
+        self.cnxn, cols=config_svc.COMPONENTDEF_COLS,
+        is_deleted=False,
+        project_id=project_ids, order_by=[('path', [])]).AndReturn([])
+
+  def testGetProjectConfigs(self):
+    project_ids = [789, 679]
+    self.SetUpGetProjectConfigs(project_ids)
+
+    self.mox.ReplayAll()
+    config_dict = self.config_service.GetProjectConfigs(
+        self.cnxn, [789, 679], use_cache=False)
+    self.assertEqual(2, len(config_dict))
+    for pid in project_ids:
+      self.assertEqual(pid, config_dict[pid].project_id)
+    self.mox.VerifyAll()
+
+  def testGetProjectConfig_Hit(self):
+    project_id = 789
+    config = tracker_bizobj.MakeDefaultProjectIssueConfig(project_id)
+    self.config_service.config_2lc.CacheItem(project_id, config)
+
+    self.mox.ReplayAll()
+    actual = self.config_service.GetProjectConfig(self.cnxn, project_id)
+    self.assertEqual(config, actual)
+    self.mox.VerifyAll()
+
+  def testGetProjectConfig_Miss(self):
+    project_id = 789
+    self.SetUpGetProjectConfigs([project_id])
+
+    self.mox.ReplayAll()
+    config = self.config_service.GetProjectConfig(self.cnxn, project_id)
+    self.assertEqual(project_id, config.project_id)
+    self.mox.VerifyAll()
+
+  def SetUpStoreConfig_Default(self, project_id):
+    self.config_service.projectissueconfig_tbl.InsertRow(
+        self.cnxn, replace=True,
+        project_id=project_id,
+        statuses_offer_merge='Duplicate',
+        exclusive_label_prefixes='Type Priority Milestone',
+        default_template_for_developers=0,
+        default_template_for_users=0,
+        default_col_spec=tracker_constants.DEFAULT_COL_SPEC,
+        default_sort_spec='',
+        default_x_attr='',
+        default_y_attr='',
+        member_default_query='',
+        custom_issue_entry_url=None,
+        commit=False)
+
+    self.SetUpUpdateWellKnownLabels_Default(project_id)
+    self.SetUpUpdateWellKnownStatuses_Default(project_id)
+    self.cnxn.Commit()
+
+  def SetUpUpdateWellKnownLabels_JustCache(self, project_id):
+    by_id = {
+        idx + 1: label for idx, (label, _, _) in enumerate(
+            tracker_constants.DEFAULT_WELL_KNOWN_LABELS)}
+    by_name = {name.lower(): label_id
+               for label_id, name in by_id.items()}
+    label_dicts = by_id, by_name
+    self.config_service.label_cache.CacheAll({project_id: label_dicts})
+
+  def SetUpUpdateWellKnownLabels_Default(self, project_id):
+    self.SetUpUpdateWellKnownLabels_JustCache(project_id)
+    update_labeldef_rows = [
+        (idx + 1, project_id, idx, label, doc, deprecated)
+        for idx, (label, doc, deprecated) in enumerate(
+            tracker_constants.DEFAULT_WELL_KNOWN_LABELS)]
+    self.config_service.labeldef_tbl.Update(
+        self.cnxn, {'rank': None}, project_id=project_id, commit=False)
+    self.config_service.labeldef_tbl.InsertRows(
+        self.cnxn, config_svc.LABELDEF_COLS, update_labeldef_rows,
+        replace=True, commit=False)
+    self.config_service.labeldef_tbl.InsertRows(
+        self.cnxn, config_svc.LABELDEF_COLS[1:], [], commit=False)
+
+  def SetUpUpdateWellKnownStatuses_Default(self, project_id):
+    by_id = {
+        idx + 1: status for idx, (status, _, _, _) in enumerate(
+            tracker_constants.DEFAULT_WELL_KNOWN_STATUSES)}
+    by_name = {name.lower(): label_id
+               for label_id, name in by_id.items()}
+    closed_ids = [
+        idx + 1 for idx, (_, _, means_open, _) in enumerate(
+            tracker_constants.DEFAULT_WELL_KNOWN_STATUSES)
+        if not means_open]
+    status_dicts = by_id, by_name, closed_ids
+    self.config_service.status_cache.CacheAll({789: status_dicts})
+
+    update_statusdef_rows = [
+        (idx + 1, project_id, idx, status, means_open, doc, deprecated)
+        for idx, (status, doc, means_open, deprecated) in enumerate(
+            tracker_constants.DEFAULT_WELL_KNOWN_STATUSES)]
+    self.config_service.statusdef_tbl.Update(
+        self.cnxn, {'rank': None}, project_id=project_id, commit=False)
+    self.config_service.statusdef_tbl.InsertRows(
+        self.cnxn, config_svc.STATUSDEF_COLS, update_statusdef_rows,
+        replace=True, commit=False)
+    self.config_service.statusdef_tbl.InsertRows(
+        self.cnxn, config_svc.STATUSDEF_COLS[1:], [], commit=False)
+
+  def SetUpUpdateApprovals_Default(
+      self, approval_id, approver_rows, survey_row):
+    self.config_service.approvaldef2approver_tbl.Delete(
+        self.cnxn, approval_id=approval_id, commit=False)
+
+    self.config_service.approvaldef2approver_tbl.InsertRows(
+        self.cnxn,
+        config_svc.APPROVALDEF2APPROVER_COLS,
+        approver_rows,
+        commit=False)
+
+    approval_id, survey, project_id = survey_row
+    self.config_service.approvaldef2survey_tbl.Delete(
+        self.cnxn, approval_id=approval_id, commit=False)
+    self.config_service.approvaldef2survey_tbl.InsertRow(
+        self.cnxn,
+        approval_id=approval_id,
+        survey=survey,
+        project_id=project_id,
+        commit=False)
+
+  def testStoreConfig(self):
+    config = tracker_bizobj.MakeDefaultProjectIssueConfig(789)
+    self.SetUpStoreConfig_Default(789)
+
+    self.mox.ReplayAll()
+    self.config_service.StoreConfig(self.cnxn, config)
+    self.mox.VerifyAll()
+
+  def testUpdateWellKnownLabels(self):
+    config = tracker_bizobj.MakeDefaultProjectIssueConfig(789)
+    self.SetUpUpdateWellKnownLabels_Default(789)
+
+    self.mox.ReplayAll()
+    self.config_service._UpdateWellKnownLabels(self.cnxn, config)
+    self.mox.VerifyAll()
+
+  def testUpdateWellKnownLabels_Duplicate(self):
+    config = tracker_bizobj.MakeDefaultProjectIssueConfig(789)
+    config.well_known_labels.append(config.well_known_labels[0])
+    self.SetUpUpdateWellKnownLabels_JustCache(789)
+
+    self.mox.ReplayAll()
+    with self.assertRaises(exceptions.InputException) as cm:
+      self.config_service._UpdateWellKnownLabels(self.cnxn, config)
+    self.mox.VerifyAll()
+    self.assertEqual(
+      'Defined label "Type-Defect" twice',
+      cm.exception.message)
+
+  def testUpdateWellKnownStatuses(self):
+    config = tracker_bizobj.MakeDefaultProjectIssueConfig(789)
+    self.SetUpUpdateWellKnownStatuses_Default(789)
+
+    self.mox.ReplayAll()
+    self.config_service._UpdateWellKnownStatuses(self.cnxn, config)
+    self.mox.VerifyAll()
+
+  def testUpdateApprovals(self):
+    config = tracker_bizobj.MakeDefaultProjectIssueConfig(789)
+    approver_rows = [(123, 111, 789), (123, 222, 789)]
+    survey_row = (123, 'Q1\nQ2', 789)
+    first_approval = tracker_bizobj.MakeFieldDef(
+        123, 789, 'FirstApproval', tracker_pb2.FieldTypes.APPROVAL_TYPE,
+        None, '', False, False, False, None, None, '', False, '', '',
+        tracker_pb2.NotifyTriggers.NEVER, 'no_action', 'the first one', False)
+    config.field_defs = [first_approval]
+    config.approval_defs = [tracker_pb2.ApprovalDef(
+        approval_id=123, approver_ids=[111, 222], survey='Q1\nQ2')]
+    self.SetUpUpdateApprovals_Default(123, approver_rows, survey_row)
+
+    self.mox.ReplayAll()
+    self.config_service._UpdateApprovals(self.cnxn, config)
+    self.mox.VerifyAll()
+
+  def testUpdateConfig(self):
+    pass  # TODO(jrobbins): add a test for this
+
+  def SetUpExpungeConfig(self, project_id):
+    self.config_service.statusdef_tbl.Delete(self.cnxn, project_id=project_id)
+    self.config_service.labeldef_tbl.Delete(self.cnxn, project_id=project_id)
+    self.config_service.projectissueconfig_tbl.Delete(
+        self.cnxn, project_id=project_id)
+
+    self.config_service.config_2lc.InvalidateKeys(self.cnxn, [project_id])
+
+  def testExpungeConfig(self):
+    self.SetUpExpungeConfig(789)
+
+    self.mox.ReplayAll()
+    self.config_service.ExpungeConfig(self.cnxn, 789)
+    self.mox.VerifyAll()
+
+  def testExpungeUsersInConfigs(self):
+
+    self.config_service.component2admin_tbl.Delete = mock.Mock()
+    self.config_service.component2cc_tbl.Delete = mock.Mock()
+    self.config_service.componentdef_tbl.Update = mock.Mock()
+
+    self.config_service.fielddef2admin_tbl.Delete = mock.Mock()
+    self.config_service.fielddef2editor_tbl.Delete = mock.Mock()
+    self.config_service.approvaldef2approver_tbl.Delete = mock.Mock()
+
+    user_ids = [111, 222, 333]
+    self.config_service.ExpungeUsersInConfigs(self.cnxn, user_ids, limit=50)
+
+    self.config_service.component2admin_tbl.Delete.assert_called_once_with(
+        self.cnxn, admin_id=user_ids, commit=False, limit=50)
+    self.config_service.component2cc_tbl.Delete.assert_called_once_with(
+        self.cnxn, cc_id=user_ids, commit=False, limit=50)
+    cdef_calls = [
+        mock.call(
+            self.cnxn, {'creator_id': framework_constants.DELETED_USER_ID},
+            creator_id=user_ids, commit=False, limit=50),
+        mock.call(
+            self.cnxn, {'modifier_id': framework_constants.DELETED_USER_ID},
+            modifier_id=user_ids, commit=False, limit=50)]
+    self.config_service.componentdef_tbl.Update.assert_has_calls(cdef_calls)
+
+    self.config_service.fielddef2admin_tbl.Delete.assert_called_once_with(
+        self.cnxn, admin_id=user_ids, commit=False, limit=50)
+    self.config_service.fielddef2editor_tbl.Delete.assert_called_once_with(
+        self.cnxn, editor_id=user_ids, commit=False, limit=50)
+    self.config_service.approvaldef2approver_tbl.Delete.assert_called_once_with(
+        self.cnxn, approver_id=user_ids, commit=False, limit=50)
+
+  ### Custom field definitions
+
+  def SetUpCreateFieldDef(self, project_id):
+    self.config_service.fielddef_tbl.InsertRow(
+        self.cnxn,
+        project_id=project_id,
+        field_name='PercentDone',
+        field_type='int_type',
+        applicable_type='Defect',
+        applicable_predicate='',
+        is_required=False,
+        is_multivalued=False,
+        is_niche=False,
+        min_value=1,
+        max_value=100,
+        regex=None,
+        needs_member=None,
+        needs_perm=None,
+        grants_perm=None,
+        notify_on='never',
+        date_action='no_action',
+        docstring='doc',
+        approval_id=None,
+        is_phase_field=False,
+        is_restricted_field=True,
+        commit=False).AndReturn(1)
+    self.config_service.fielddef2admin_tbl.InsertRows(
+        self.cnxn, config_svc.FIELDDEF2ADMIN_COLS, [(1, 111)], commit=False)
+    self.config_service.fielddef2editor_tbl.InsertRows(
+        self.cnxn, config_svc.FIELDDEF2EDITOR_COLS, [(1, 222)], commit=False)
+    self.cnxn.Commit()
+
+  def testCreateFieldDef(self):
+    self.SetUpCreateFieldDef(789)
+
+    self.mox.ReplayAll()
+    field_id = self.config_service.CreateFieldDef(
+        self.cnxn,
+        789,
+        'PercentDone',
+        'int_type',
+        'Defect',
+        '',
+        False,
+        False,
+        False,
+        1,
+        100,
+        None,
+        None,
+        None,
+        None,
+        0,
+        'no_action',
+        'doc', [111], [222],
+        is_restricted_field=True)
+    self.mox.VerifyAll()
+    self.assertEqual(1, field_id)
+
+  def SetUpSoftDeleteFieldDefs(self, field_ids):
+    self.config_service.fielddef_tbl.Update(
+        self.cnxn, {'is_deleted': True}, id=field_ids)
+
+  def testSoftDeleteFieldDefs(self):
+    self.SetUpSoftDeleteFieldDefs([1])
+
+    self.mox.ReplayAll()
+    self.config_service.SoftDeleteFieldDefs(self.cnxn, 789, [1])
+    self.mox.VerifyAll()
+
+  def SetUpUpdateFieldDef(self, field_id, new_values, admin_rows, editor_rows):
+    self.config_service.fielddef_tbl.Update(
+        self.cnxn, new_values, id=field_id, commit=False)
+    self.config_service.fielddef2admin_tbl.Delete(
+        self.cnxn, field_id=field_id, commit=False)
+    self.config_service.fielddef2admin_tbl.InsertRows(
+        self.cnxn, config_svc.FIELDDEF2ADMIN_COLS, admin_rows, commit=False)
+    self.config_service.fielddef2editor_tbl.Delete(
+        self.cnxn, field_id=field_id, commit=False)
+    self.config_service.fielddef2editor_tbl.InsertRows(
+        self.cnxn, config_svc.FIELDDEF2EDITOR_COLS, editor_rows, commit=False)
+    self.cnxn.Commit()
+
+  def testUpdateFieldDef_NoOp(self):
+    new_values = {}
+    self.SetUpUpdateFieldDef(1, new_values, [], [])
+
+    self.mox.ReplayAll()
+    self.config_service.UpdateFieldDef(
+        self.cnxn, 789, 1, admin_ids=[], editor_ids=[])
+    self.mox.VerifyAll()
+
+  def testUpdateFieldDef_Normal(self):
+    new_values = dict(
+        field_name='newname',
+        applicable_type='defect',
+        applicable_predicate='pri:1',
+        is_required=True,
+        is_niche=True,
+        is_multivalued=True,
+        min_value=32,
+        max_value=212,
+        regex='a.*b',
+        needs_member=True,
+        needs_perm='EditIssue',
+        grants_perm='DeleteIssue',
+        notify_on='any_comment',
+        docstring='new doc',
+        is_restricted_field=True)
+    self.SetUpUpdateFieldDef(1, new_values, [(1, 111)], [(1, 222)])
+
+    self.mox.ReplayAll()
+    new_values = new_values.copy()
+    new_values['notify_on'] = 1
+    self.config_service.UpdateFieldDef(
+        self.cnxn, 789, 1, admin_ids=[111], editor_ids=[222], **new_values)
+    self.mox.VerifyAll()
+
+  ### Component definitions
+
+  def SetUpFindMatchingComponentIDsAnyProject(self, _exact, rows):
+    # TODO(jrobbins): more details here.
+    self.config_service.componentdef_tbl.Select(
+        self.cnxn, cols=['id'], where=mox.IsA(list)).AndReturn(rows)
+
+  def testFindMatchingComponentIDsAnyProject_Rooted(self):
+    self.SetUpFindMatchingComponentIDsAnyProject(True, [(1,), (2,), (3,)])
+
+    self.mox.ReplayAll()
+    comp_ids = self.config_service.FindMatchingComponentIDsAnyProject(
+        self.cnxn, ['WindowManager', 'NetworkLayer'])
+    self.mox.VerifyAll()
+    self.assertItemsEqual([1, 2, 3], comp_ids)
+
+  def testFindMatchingComponentIDsAnyProject_NonRooted(self):
+    self.SetUpFindMatchingComponentIDsAnyProject(False, [(1,), (2,), (3,)])
+
+    self.mox.ReplayAll()
+    comp_ids = self.config_service.FindMatchingComponentIDsAnyProject(
+        self.cnxn, ['WindowManager', 'NetworkLayer'], exact=False)
+    self.mox.VerifyAll()
+    self.assertItemsEqual([1, 2, 3], comp_ids)
+
+  def SetUpCreateComponentDef(self, comp_id):
+    self.config_service.componentdef_tbl.InsertRow(
+        self.cnxn, project_id=789, path='WindowManager',
+        docstring='doc', deprecated=False, commit=False,
+        created=0, creator_id=0).AndReturn(comp_id)
+    self.config_service.component2admin_tbl.InsertRows(
+        self.cnxn, config_svc.COMPONENT2ADMIN_COLS, [], commit=False)
+    self.config_service.component2cc_tbl.InsertRows(
+        self.cnxn, config_svc.COMPONENT2CC_COLS, [], commit=False)
+    self.config_service.component2label_tbl.InsertRows(
+        self.cnxn, config_svc.COMPONENT2LABEL_COLS, [], commit=False)
+    self.cnxn.Commit()
+
+  def testCreateComponentDef(self):
+    self.SetUpCreateComponentDef(1)
+
+    self.mox.ReplayAll()
+    comp_id = self.config_service.CreateComponentDef(
+        self.cnxn, 789, 'WindowManager', 'doc', False, [], [], 0, 0, [])
+    self.mox.VerifyAll()
+    self.assertEqual(1, comp_id)
+
+  def SetUpUpdateComponentDef(self, component_id):
+    self.config_service.component2admin_tbl.Delete(
+        self.cnxn, component_id=component_id, commit=False)
+    self.config_service.component2admin_tbl.InsertRows(
+        self.cnxn, config_svc.COMPONENT2ADMIN_COLS, [], commit=False)
+    self.config_service.component2cc_tbl.Delete(
+        self.cnxn, component_id=component_id, commit=False)
+    self.config_service.component2cc_tbl.InsertRows(
+        self.cnxn, config_svc.COMPONENT2CC_COLS, [], commit=False)
+    self.config_service.component2label_tbl.Delete(
+        self.cnxn, component_id=component_id, commit=False)
+    self.config_service.component2label_tbl.InsertRows(
+        self.cnxn, config_svc.COMPONENT2LABEL_COLS, [], commit=False)
+
+    self.config_service.componentdef_tbl.Update(
+        self.cnxn,
+        {'path': 'DisplayManager', 'docstring': 'doc', 'deprecated': True},
+        id=component_id, commit=False)
+    self.cnxn.Commit()
+
+  def testUpdateComponentDef(self):
+    self.SetUpUpdateComponentDef(1)
+
+    self.mox.ReplayAll()
+    self.config_service.UpdateComponentDef(
+        self.cnxn, 789, 1, path='DisplayManager', docstring='doc',
+        deprecated=True, admin_ids=[], cc_ids=[], label_ids=[])
+    self.mox.VerifyAll()
+
+  def SetUpSoftDeleteComponentDef(self, component_id):
+    self.config_service.componentdef_tbl.Update(
+        self.cnxn, {'is_deleted': True}, commit=False, id=component_id)
+    self.cnxn.Commit()
+
+  def testSoftDeleteComponentDef(self):
+    self.SetUpSoftDeleteComponentDef(1)
+
+    self.mox.ReplayAll()
+    self.config_service.DeleteComponentDef(self.cnxn, 789, 1)
+    self.mox.VerifyAll()
+
+  ### Memcache management
+
+  def testInvalidateMemcache(self):
+    pass  # TODO(jrobbins): write this
+
+  def testInvalidateMemcacheShards(self):
+    NOW = 1234567
+    memcache.set('789;1', NOW)
+    memcache.set('789;2', NOW - 1000)
+    memcache.set('789;3', NOW - 2000)
+    memcache.set('all;1', NOW)
+    memcache.set('all;2', NOW - 1000)
+    memcache.set('all;3', NOW - 2000)
+
+    # Delete some of them.
+    self.config_service._InvalidateMemcacheShards(
+        [(789, 1), (789, 2), (789,9)])
+
+    self.assertIsNone(memcache.get('789;1'))
+    self.assertIsNone(memcache.get('789;2'))
+    self.assertEqual(NOW - 2000, memcache.get('789;3'))
+    self.assertIsNone(memcache.get('all;1'))
+    self.assertIsNone(memcache.get('all;2'))
+    self.assertEqual(NOW - 2000, memcache.get('all;3'))
+
+  def testInvalidateMemcacheForEntireProject(self):
+    NOW = 1234567
+    memcache.set('789;1', NOW)
+    memcache.set('config:789', 'serialized config')
+    memcache.set('label_rows:789', 'serialized label rows')
+    memcache.set('status_rows:789', 'serialized status rows')
+    memcache.set('field_rows:789', 'serialized field rows')
+    memcache.set('890;1', NOW)  # Other projects will not be affected.
+
+    self.config_service.InvalidateMemcacheForEntireProject(789)
+
+    self.assertIsNone(memcache.get('789;1'))
+    self.assertIsNone(memcache.get('config:789'))
+    self.assertIsNone(memcache.get('status_rows:789'))
+    self.assertIsNone(memcache.get('label_rows:789'))
+    self.assertIsNone(memcache.get('field_rows:789'))
+    self.assertEqual(NOW, memcache.get('890;1'))
+
+  def testUsersInvolvedInConfig_Empty(self):
+    templates = []
+    config = tracker_pb2.ProjectIssueConfig()
+    self.assertEqual(set(), self.config_service.UsersInvolvedInConfig(
+        config, templates))
+
+  def testUsersInvolvedInConfig_Default(self):
+    templates = [
+        tracker_bizobj.ConvertDictToTemplate(t)
+        for t in tracker_constants.DEFAULT_TEMPLATES]
+    config = tracker_bizobj.MakeDefaultProjectIssueConfig(789)
+    self.assertEqual(set(), self.config_service.UsersInvolvedInConfig(
+        config, templates))
+
+  def testUsersInvolvedInConfig_Normal(self):
+    config = tracker_bizobj.MakeDefaultProjectIssueConfig(789)
+    templates = [
+        tracker_bizobj.ConvertDictToTemplate(t)
+        for t in tracker_constants.DEFAULT_TEMPLATES]
+    templates[0].owner_id = 111
+    templates[0].admin_ids = [111, 222]
+    config.field_defs = [
+        tracker_pb2.FieldDef(admin_ids=[333], editor_ids=[444])
+    ]
+    actual = self.config_service.UsersInvolvedInConfig(config, templates)
+    self.assertEqual({111, 222, 333, 444}, actual)