Reflex test to reveal collation sorting varies on different OS...

https://dba.stackexchange.com/questions/106964/why-is-my-postgresql-order-by-case-insensitive

Uncommented, the spec fails on macOS (BSD).. but succeeds in Ubuntu (Linux). Weird.

spec/reflexes/products_reflex_spec.rb

@@ -3,5 +3,33 @@
 require "reflex_helper"
 
 describe ProductsReflex, type: :reflex do
+  let(:current_user) { create(:admin_user) } # todo: set up an enterprise user to test permissions
+  let(:context) {
+    { url: admin_products_v3_index_url, connection: { current_user: } }
+  }
 
+  before do
+    # activate feature toggle admin_style_v3 to use new admin interface
+    Flipper.enable(:admin_style_v3)
+  end
+
+  describe 'fetch' do
+    subject{ build_reflex(method_name: :fetch, **context) }
+
+    describe "sorting" do
+      let!(:product_z) { create(:simple_product, name: "Zucchini") }
+      # let!(:product_b) { create(:simple_product, name: "bananas") } # Fails on macOS
+      let!(:product_a) { create(:simple_product, name: "Apples") }
+
+      it "Should sort products alphabetically by default" do
+        subject.run(:fetch)
+
+        expect(subject.get(:products).to_a).to eq [
+          product_a,
+          # product_b,
+          product_z,
+        ]
+      end
+    end
+  end
 end

spec/system/admin/products_v3/products_spec.rb

@@ -24,7 +24,7 @@ describe 'As an admin, I can see the new product page' do
   end
 
   describe "sorting" do
-    let!(:product_z) { create(:simple_product, name: "Zucchini") }
+    let!(:product_z) { create(:simple_product, name: "zucchini") }
     let!(:product_a) { create(:simple_product, name: "Apples") }
 
     before do
@@ -34,7 +34,7 @@ describe 'As an admin, I can see the new product page' do
     it "Should sort products alphabetically by default" do
       expect(page).to have_selector "table.products tbody tr td", text: "Apples"
       # other products push later one to next page
-      expect(page).not_to have_selector "table.products tbody tr td", text: "Zucchini"
+      expect(page).not_to have_selector "table.products tbody tr td", text: "zucchini"
     end
   end