Make test assertion independent of config

We're proposing a new default for this configuration value, so this
change updates the test in the new promotion system to not be dependent
on the current default value.

This test will fail if the default configuration changes.

Co-authored-by: Benjamin Willems <benjamin@super.gd>
Co-authored-by: Kendra Riga <kendra@super.gd>
Co-authored-by: Adam Mueller <adam@super.gd>

Author: 4 people

promotions/spec/lib/solidus_promotions/engine_spec.rb

@@ -4,6 +4,15 @@
 
 RSpec.describe SolidusPromotions::Engine do
   describe "initializer.flickwerk_alias" do
+    around do |example|
+      original_value = Spree::Config.order_recalculator_class_name
+      Spree::Config.order_recalculator_class = "ThisIsATestClassName"
+
+      example.run
+
+      Spree::Config.order_recalculator_class = original_value
+    end
+
     it "sets the Flickwerk alias for order_recalculator_class" do
       Flickwerk.aliases["Spree::Config.order_recalculator_class"] = nil
 
@@ -12,7 +21,7 @@
 
       initializer = SolidusPromotions::Engine.initializers.find { |i| i.name == "solidus_promotions.flickwerk_alias" }
       initializer.run
-      expect(Flickwerk.aliases["Spree::Config.order_recalculator_class"]).to eq("Spree::OrderUpdater")
+      expect(Flickwerk.aliases["Spree::Config.order_recalculator_class"]).to eq("ThisIsATestClassName")
     end
   end
 end