Validate data of Imports (#4782)

app/models/import.rb

@@ -28,4 +28,5 @@ class Import < ApplicationRecord
 
   has_attached_file :data, url: '/system/:hash.:extension', hash_secret: ENV['PAPERCLIP_SECRET']
   validates_attachment_content_type :data, content_type: FILE_TYPES
+  validates_attachment_presence :data
 end

spec/models/import_spec.rb

 require 'rails_helper'
 
 RSpec.describe Import, type: :model do
+  let (:account) { Fabricate(:account) }
+  let (:type) { 'following' }
+  let (:data) { attachment_fixture('imports.txt') }
 
+  describe 'validations' do
+    it 'has a valid parameters' do
+      import = Import.create(account: account, type: type, data: data)
+      expect(import).to be_valid
+    end
+
+    it 'is invalid without an type' do
+      import = Import.create(account: account, data: data)
+      expect(import).to model_have_error_on_field(:type)
+    end
+
+    it 'is invalid without a data' do
+      import = Import.create(account: account, type: type)
+      expect(import).to model_have_error_on_field(:data)
+    end
+  end
 end