Add specs for media attachment validations

There are currently not specs for the two media validations that are performed
by `PostStatusService`. This adds specs for the validations that ensure that you
cannot attach more than four files, and that a status cannot have both image and
video attachments.

1 files changed, 1 insertions, 1 deletions

diff --git a/spec/fabricators/media_attachment_fabricator.rb b/spec/fabricators/media_attachment_fabricator.rb
index 59db2440d..dc91d708f 100644
--- a/spec/fabricators/media_attachment_fabricator.rb
+++ b/spec/fabricators/media_attachment_fabricator.rb
@@ -1,3 +1,3 @@
 Fabricator(:media_attachment) do
-
+  account
 end