diff --git a/tempest/tests/common/test_admin_available.py b/tempest/tests/common/test_admin_available.py
new file mode 100644
index 0000000..5070f22
--- /dev/null
+++ b/tempest/tests/common/test_admin_available.py
@@ -0,0 +1,102 @@
+# Copyright 2015 Red Hat, Inc.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from oslo.config import cfg
+from oslotest import mockpatch
+
+from tempest.common import credentials
+from tempest import config
+from tempest.tests import base
+from tempest.tests import fake_config
+
+
+class TestAdminAvailable(base.TestCase):
+
+    def setUp(self):
+        super(TestAdminAvailable, self).setUp()
+        self.useFixture(fake_config.ConfigFixture())
+        self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)
+
+    def run_test(self, tenant_isolation, use_accounts_file, admin_creds):
+
+        cfg.CONF.set_default('allow_tenant_isolation',
+                             tenant_isolation, group='auth')
+        if use_accounts_file:
+            accounts = [{'username': 'u1',
+                         'tenant_name': 't1',
+                         'password': 'p'},
+                        {'username': 'u2',
+                         'tenant_name': 't2',
+                         'password': 'p'}]
+            if admin_creds == 'role':
+                accounts.append({'username': 'admin',
+                                 'tenant_name': 'admin',
+                                 'password': 'p',
+                                 'roles': ['admin']})
+            elif admin_creds == 'type':
+                accounts.append({'username': 'admin',
+                                 'tenant_name': 'admin',
+                                 'password': 'p',
+                                 'types': ['admin']})
+            self.useFixture(mockpatch.Patch(
+                'tempest.common.accounts.read_accounts_yaml',
+                return_value=accounts))
+            self.useFixture(mockpatch.Patch('os.path.isfile',
+                                            return_value=True))
+        else:
+            self.useFixture(mockpatch.Patch('os.path.isfile',
+                                            return_value=False))
+            if admin_creds:
+                (u, t, p) = ('u', 't', 'p')
+            else:
+                (u, t, p) = (None, None, None)
+
+            cfg.CONF.set_default('admin_username', u, group='identity')
+            cfg.CONF.set_default('admin_tenant_name', t, group='identity')
+            cfg.CONF.set_default('admin_password', p, group='identity')
+
+        expected = admin_creds is not None or tenant_isolation
+        observed = credentials.is_admin_available()
+        self.assertEqual(expected, observed)
+
+    # Tenant isolation implies admin so only one test case for True
+    def test__tenant_isolation__accounts_file__no_admin(self):
+        self.run_test(tenant_isolation=True,
+                      use_accounts_file=True,
+                      admin_creds=None)
+
+    def test__no_tenant_isolation__accounts_file__no_admin(self):
+        self.run_test(tenant_isolation=False,
+                      use_accounts_file=True,
+                      admin_creds=None)
+
+    def test__no_tenant_isolation__accounts_file__admin_role(self):
+        self.run_test(tenant_isolation=False,
+                      use_accounts_file=True,
+                      admin_creds='role')
+
+    def test__no_tenant_isolation__accounts_file__admin_type(self):
+        self.run_test(tenant_isolation=False,
+                      use_accounts_file=True,
+                      admin_creds='type')
+
+    def test__no_tenant_isolation__no_accounts_file__no_admin(self):
+        self.run_test(tenant_isolation=False,
+                      use_accounts_file=False,
+                      admin_creds=None)
+
+    def test__no_tenant_isolation__no_accounts_file__admin(self):
+        self.run_test(tenant_isolation=False,
+                      use_accounts_file=False,
+                      admin_creds='role')