Add tests for find_resource()

Add a couple of tests for utils.find_resource() for the odd resources
and managers without resource_class.

Change-Id: I2ed9b491d1361b5259b3a5f80b4fac787a7087c1

openstackclient/tests/common/test_utils.py

@@ -20,6 +20,7 @@ import mock
 
 from openstackclient.common import exceptions
 from openstackclient.common import utils
+from openstackclient.tests import fakes
 from openstackclient.tests import utils as test_utils
 
 PASSWORD = "Pa$$w0rd"
@@ -27,6 +28,18 @@ WASSPORD = "Wa$$p0rd"
 DROWSSAP = "dr0w$$aP"
 
 
+class FakeOddballResource(fakes.FakeResource):
+
+    def get(self, attr):
+        """get() is needed for utils.find_resource()"""
+        if attr == 'id':
+            return self.id
+        elif attr == 'name':
+            return self.name
+        else:
+            return None
+
+
 class TestUtils(test_utils.TestCase):
 
     def test_get_password_good(self):
@@ -242,6 +255,47 @@ class TestFindResource(test_utils.TestCase):
         self.manager.get.assert_called_with(self.name)
         self.manager.find.assert_called_with(name=self.name)
 
+    def test_find_resource_silly_resource(self):
+        # We need a resource with no resource_class for this test, start fresh
+        self.manager = mock.Mock()
+        self.manager.get = mock.Mock(side_effect=Exception('Boom!'))
+        self.manager.find = mock.Mock(
+            side_effect=AttributeError(
+                "'Controller' object has no attribute 'find'",
+            )
+        )
+        silly_resource = FakeOddballResource(
+            None,
+            {'id': '12345', 'name': self.name},
+            loaded=True,
+        )
+        self.manager.list = mock.Mock(
+            return_value=[silly_resource, ],
+        )
+        result = utils.find_resource(self.manager, self.name)
+        self.assertEqual(silly_resource, result)
+        self.manager.get.assert_called_with(self.name)
+        self.manager.find.assert_called_with(name=self.name)
+
+    def test_find_resource_silly_resource_not_found(self):
+        # We need a resource with no resource_class for this test, start fresh
+        self.manager = mock.Mock()
+        self.manager.get = mock.Mock(side_effect=Exception('Boom!'))
+        self.manager.find = mock.Mock(
+            side_effect=AttributeError(
+                "'Controller' object has no attribute 'find'",
+            )
+        )
+        self.manager.list = mock.Mock(return_value=[])
+        result = self.assertRaises(exceptions.CommandError,
+                                   utils.find_resource,
+                                   self.manager,
+                                   self.name)
+        self.assertEqual("Could not find resource legos",
+                         str(result))
+        self.manager.get.assert_called_with(self.name)
+        self.manager.find.assert_called_with(name=self.name)
+
     def test_format_dict(self):
         expected = "a='b', c='d', e='f'"
         self.assertEqual(expected,