Ignore more exceptions in quota list

Additional exceptions can be thrown here, ignore additional project
lookup exceptions, but still not all.  Server failures are still
interesting, for example.

Change-Id: I9a750ae8e8efa29a36bbd1e34b50b6ace0658260

openstackclient/common/quota.py

@@ -135,7 +135,10 @@ class ListQuota(command.Lister):
                 try:
                     data = compute_client.quotas.get(p)
                 except Exception as ex:
-                    if type(ex).__name__ == 'NotFound':
+                    if (
+                        type(ex).__name__ == 'NotFound' or
+                        ex.http_status >= 400 and ex.http_status <= 499
+                    ):
                         # Project not found, move on to next one
                         LOG.warning("Project %s not found: %s" % (p, ex))
                         continue

openstackclient/tests/unit/common/test_quota.py

@@ -242,7 +242,7 @@ class TestQuotaList(TestQuota):
         self.assertEqual(self.compute_reference_data, ret_quotas[0])
         self.assertEqual(1, len(ret_quotas))
 
-    def test_quota_list_compute_no_project(self):
+    def test_quota_list_compute_no_project_not_found(self):
         # Make one of the projects disappear
         self.compute.quotas.get = mock.Mock(
             side_effect=[
@@ -266,6 +266,53 @@ class TestQuotaList(TestQuota):
         self.assertEqual(self.compute_reference_data, ret_quotas[0])
         self.assertEqual(1, len(ret_quotas))
 
+    def test_quota_list_compute_no_project_4xx(self):
+        # Make one of the projects disappear
+        self.compute.quotas.get = mock.Mock(
+            side_effect=[
+                self.compute_quotas[0],
+                exceptions.BadRequest("Bad request"),
+            ],
+        )
+
+        arglist = [
+            '--compute',
+        ]
+        verifylist = [
+            ('compute', True),
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        columns, data = self.cmd.take_action(parsed_args)
+        ret_quotas = list(data)
+
+        self.assertEqual(self.compute_column_header, columns)
+        self.assertEqual(self.compute_reference_data, ret_quotas[0])
+        self.assertEqual(1, len(ret_quotas))
+
+    def test_quota_list_compute_no_project_5xx(self):
+        # Make one of the projects disappear
+        self.compute.quotas.get = mock.Mock(
+            side_effect=[
+                self.compute_quotas[0],
+                exceptions.HTTPNotImplemented("Not implemented??"),
+            ],
+        )
+
+        arglist = [
+            '--compute',
+        ]
+        verifylist = [
+            ('compute', True),
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        self.assertRaises(
+            exceptions.HTTPNotImplemented,
+            self.cmd.take_action,
+            parsed_args,
+        )
+
     def test_quota_list_network(self):
         # Two projects with non-default quotas
         self.network.get_quota = mock.Mock(