Add specs for post action guardian

spec/components/post_action_creator_spec.rb

@@ -0,0 +1,22 @@
+require 'rails_helper'
+require 'post_action_creator'
+
+describe PostCreator do
+  let(:user) { Fabricate(:user) }
+  let(:post) { Fabricate(:post) }
+  let(:group) { Fabricate(:group) }
+  let(:like_type_id) { PostActionType.types[:like] }
+
+
+  describe 'perform' do
+    it 'creates a post action' do
+      expect { PostActionCreator.new(user, post).perform(like_type_id) }.to change { PostAction.count }.by(1)
+      expect(PostAction.find_by(user: user, post: post, post_action_type_id: like_type_id)).to be_present
+    end
+
+    it 'does not create an invalid post action' do
+      expect { PostActionCreator.new(user, nil).perform(like_type_id) }.to raise_error(Discourse::InvalidAccess)
+    end
+  end
+
+end