Add request specs

Author: chaimann

admin/spec/requests/solidus_admin/tax_rates_spec.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+require 'solidus_admin/testing_support/shared_examples/crud_resource_requests'
+
+RSpec.describe "SolidusAdmin::TaxRatesController", type: :request do
+  include_examples 'CRUD resource requests', 'tax_rate' do
+    let(:resource_class) { Spree::TaxRate }
+    let(:valid_attributes) { { amount: 1, calculator_type: "Spree::Calculator::DefaultTax" } }
+    let(:invalid_attributes) { { amount: "", calculator_type: nil } }
+  end
+end