[rackspace|compute] Add tests for volume attachments.

tests/rackspace/requests/compute_v2/attachment_tests.rb

@@ -0,0 +1,68 @@
+Shindo.tests('Fog::Compute::RackspaceV2 | attachment_tests', ['rackspace']) do
+
+  pending if Fog.mocking?
+
+  ATTACHMENT_FORMAT = {
+    'volumeAttachment' => {
+      'id' => String,
+      'serverId' => String,
+      'volumeId' => String,
+      'device' => Fog::Nullable::String
+    }
+  }
+
+  LIST_ATTACHMENTS_FORMAT = {
+    'volumeAttachments' => [ATTACHMENT_FORMAT]
+  }
+
+  compute_service = Fog::Compute.new(:provider => 'Rackspace', :version => 'V2')
+  block_storage_service = Fog::Rackspace::BlockStorage.new
+
+  name = 'fog' + Time.now.to_i.to_s
+  image_id = '3afe97b2-26dc-49c5-a2cc-a2fc8d80c001' # Ubuntu 11.10
+  flavor_id = '2' # 512 MB
+  server_id = compute_service.create_server(name, image_id, flavor_id, 1, 1).body['server']['id']
+  volume_id = block_storage_service.create_volume(1).body['volume']['id']
+  device_id = '/dev/xvde'
+
+
+  tests('success') do
+    until compute_service.get_server(server_id).body['server']['status'] == 'ACTIVE'
+      sleep 10
+    end
+
+    until block_storage_service.get_volume(volume_id).body['volume']['status'] == 'available'
+      sleep 10
+    end
+
+    tests("#attach_volume(#{server_id}, #{volume_id}, #{device_id})").formats(ATTACHMENT_FORMAT) do
+      compute_service.attach_volume(server_id, volume_id, device_id).body
+    end
+
+    tests("#list_attachments(#{server_id})").formats(LIST_ATTACHMENTS_FORMAT) do
+      compute_service.list_attachments(server_id).body
+    end
+
+    tests("#get_attachment(#{server_id}, #{volume_id})").formats(ATTACHMENT_FORMAT) do
+      compute_service.get_attachment(server_id, volume_id).body
+    end
+
+    until block_storage_service.get_volume(volume_id).body['volume']['status'] == 'in-use'
+      sleep 10
+    end
+
+    tests("#delete_attachment(#{server_id}, #{volume_id})").succeeds do
+      compute_service.delete_attachment(server_id, volume_id)
+    end
+  end
+
+  tests('failure') do
+    tests("#attach_volume('', #{volume_id}, #{device_id})").raises(Fog::Compute::RackspaceV2::NotFound) do
+      compute_service.attach_volume('', volume_id, device_id)
+    end
+
+    tests("#delete_attachment('', #{volume_id})").raises(Fog::Compute::RackspaceV2::NotFound) do
+      compute_service.delete_attachment('', volume_id)
+    end
+  end
+end