Fixed getting success msg on failing swift operation

Show error message instead of success message when attempting to
create a duplicate object or pseudo-folder. Added tests for
creating and creating duplicate pseudo-folders.

Change-Id: I875d471921d9a37bb6706a17d4fbca5e9428ae93
Closes-Bug: #1478126

openstack_dashboard/api/swift.py

@@ -277,6 +277,8 @@ def swift_copy_object(request, orig_container_name, orig_object_name,
 
 def swift_upload_object(request, container_name, object_name,
                         object_file=None):
+    if swift_object_exists(request, container_name, object_name):
+        raise exceptions.AlreadyExists(object_name, 'object')
     headers = {}
     size = 0
     if object_file:
@@ -294,6 +296,10 @@ def swift_upload_object(request, container_name, object_name,
 
 
 def swift_create_pseudo_folder(request, container_name, pseudo_folder_name):
+    # Make sure the folder name doesn't already exist.
+    if swift_object_exists(request, container_name, pseudo_folder_name):
+        name = pseudo_folder_name.strip('/')
+        raise exceptions.AlreadyExists(name, 'pseudo-folder')
     headers = {}
     etag = swift_api(request).put_object(container_name,
                                          pseudo_folder_name,

openstack_dashboard/test/api_tests/swift_tests.py

@@ -170,6 +170,34 @@ class SwiftApiTests(test.APITestCase):
         self.assertEqual(object.name, obj.name)
         self.assertIsNone(obj.data)
 
+    def test_swift_create_pseudo_folder(self):
+        container = self.containers.first()
+        folder = self.folder.first()
+        swift_api = self.stub_swiftclient()
+        exc = self.exceptions.swift
+        swift_api.head_object(container.name, folder.name).AndRaise(exc)
+        swift_api.put_object(container.name,
+                             folder.name,
+                             None,
+                             headers={}).AndReturn(folder)
+        self.mox.ReplayAll()
+        # Verification handled by mox, no assertions needed.
+        api.swift.swift_create_pseudo_folder(self.request,
+                                             container.name,
+                                             folder.name)
+
+    def test_swift_create_duplicate_folder(self):
+        container = self.containers.first()
+        folder = self.folder.first()
+        swift_api = self.stub_swiftclient()
+        swift_api.head_object(container.name, folder.name).AndReturn(folder)
+        self.mox.ReplayAll()
+        # Verification handled by mox, no assertions needed.
+        with self.assertRaises(exceptions.AlreadyExists):
+            api.swift.swift_create_pseudo_folder(self.request,
+                                                 container.name,
+                                                 folder.name)
+
     def test_swift_upload_object(self):
         container = self.containers.first()
         obj = self.objects.first()
@@ -184,6 +212,8 @@ class SwiftApiTests(test.APITestCase):
         headers = {'X-Object-Meta-Orig-Filename': fake_name}
 
         swift_api = self.stub_swiftclient()
+        exc = self.exceptions.swift
+        swift_api.head_object(container.name, obj.name).AndRaise(exc)
         test_file = FakeFile()
         swift_api.put_object(container.name,
                              obj.name,
@@ -197,11 +227,35 @@ class SwiftApiTests(test.APITestCase):
                                       obj.name,
                                       test_file)
 
+    def test_swift_upload_duplicate_object(self):
+        container = self.containers.first()
+        obj = self.objects.first()
+        fake_name = 'fake_object.jpg'
+
+        class FakeFile(object):
+            def __init__(self):
+                self.name = fake_name
+                self.data = obj.data
+                self.size = len(obj.data)
+
+        swift_api = self.stub_swiftclient()
+        swift_api.head_object(container.name, obj.name).AndReturn(obj)
+        test_file = FakeFile()
+        self.mox.ReplayAll()
+
+        with self.assertRaises(exceptions.AlreadyExists):
+            api.swift.swift_upload_object(self.request,
+                                          container.name,
+                                          obj.name,
+                                          test_file)
+
     def test_swift_upload_object_without_file(self):
         container = self.containers.first()
         obj = self.objects.first()
 
         swift_api = self.stub_swiftclient()
+        exc = self.exceptions.swift
+        swift_api.head_object(container.name, obj.name).AndRaise(exc)
         swift_api.put_object(container.name,
                              obj.name,
                              None,