Add specs for BetaSignupsController

spec/controllers/beta_signups_controller_spec.rb

@@ -0,0 +1,21 @@
+require "spec_helper"
+
+describe BetaSignupsController do
+  include Devise::TestHelpers
+
+  describe "POST #create" do
+    let(:user) { create(:user) }
+    before { sign_in user }
+
+    it "is successful" do
+      post :create, format: :json
+      expect(response).to be_success
+    end
+
+    it "saves a new beta_signup to the database" do
+      expect {
+        post :create, format: :json
+      }.to change(BetaSignup, :count).by(1)
+    end
+  end
+end