Add spec for Spree::Core::Environment::Calculators

core/spec/lib/spree/core/environment/calculators_spec.rb

@@ -0,0 +1,75 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+RSpec.describe Spree::Core::Environment::Calculators do
+  subject { described_class.new }
+
+  describe "#shipping_methods" do
+    it "is empty by default" do
+      expect(subject.shipping_methods).to be_empty
+    end
+
+    it "can be set to a new value" do
+      subject.shipping_methods = ["Spree::Calculator::Shipping::FlatRate"]
+      expect(subject.shipping_methods).to include(Spree::Calculator::Shipping::FlatRate)
+    end
+  end
+
+  describe "#tax_rates" do
+    it "is empty by default" do
+      expect(subject.tax_rates).to be_empty
+    end
+
+    it "can be set to a new value" do
+      subject.tax_rates = ["Spree::Calculator::Shipping::FlatRate"]
+      expect(subject.tax_rates).to include(Spree::Calculator::Shipping::FlatRate)
+    end
+  end
+
+  describe "deprecated methods" do
+    around do |example|
+      Spree.deprecator.silence do
+        example.run
+      end
+    end
+
+    describe "#promotion_actions_create_adjustments" do
+      it "contains the default calculators" do
+        expect(subject.promotion_actions_create_adjustments).to eq(Spree::Config.promotions.calculators["Spree::Promotion::Actions::CreateAdjustment"])
+      end
+
+      it "can be set to a new value" do
+        previous_value = subject.promotion_actions_create_adjustments
+        subject.promotion_actions_create_adjustments = ["Spree::Calculator::FlatRate"]
+        expect(subject.promotion_actions_create_adjustments).to include(Spree::Calculator::FlatRate)
+        subject.promotion_actions_create_adjustments = previous_value
+      end
+    end
+
+    describe "#promotion_actions_create_item_adjustments" do
+      it "contains the default calculators" do
+        expect(subject.promotion_actions_create_item_adjustments).to eq(Spree::Config.promotions.calculators["Spree::Promotion::Actions::CreateItemAdjustments"])
+      end
+
+      it "can be set to a new value" do
+        previous_value = subject.promotion_actions_create_item_adjustments
+        subject.promotion_actions_create_item_adjustments = ["Spree::Calculator::FlatRate"]
+        expect(subject.promotion_actions_create_item_adjustments).to include(Spree::Calculator::FlatRate)
+        subject.promotion_actions_create_item_adjustments = previous_value
+      end
+    end
+    describe "#promotion_actions_create_quantity_adjustments" do
+      it "contains the default calculators" do
+        expect(subject.promotion_actions_create_quantity_adjustments).to eq(Spree::Config.promotions.calculators["Spree::Promotion::Actions::CreateQuantityAdjustments"])
+      end
+
+      it "can be set to a new value" do
+        previous_value = subject.promotion_actions_create_quantity_adjustments
+        subject.promotion_actions_create_quantity_adjustments = ["Spree::Calculator::FlatRate"]
+        expect(subject.promotion_actions_create_quantity_adjustments).to include(Spree::Calculator::FlatRate)
+        subject.promotion_actions_create_quantity_adjustments = previous_value
+      end
+    end
+  end
+end