added relevant tests and tweaked the webmock

spec/features/schemes_helpers.rb

@@ -55,7 +55,7 @@ module SchemesHelpers
   end
 
   def fill_in_and_save_location
-    fill_in "Postcode", with: "SW1P 4DF"
+    fill_in "Postcode", with: "AA1 1AA"
     fill_in "Location name (optional)", with: "Some name"
     fill_in "Total number of units at this location", with: 1
     choose "Self-contained house"

spec/features/schemes_spec.rb

@@ -175,7 +175,7 @@ RSpec.describe "Schemes scheme Features" do
           context "when there are locations that belong to the selected scheme" do
             let!(:schemes) { FactoryBot.create_list(:scheme, 5) }
             let(:scheme)     { schemes.first }
-            let!(:locations) { FactoryBot.create_list(:location, 3, scheme:) }
+            let!(:locations) { FactoryBot.create_list(:location, 3, scheme:, postcode: "AA11AA") }
 
             before do
               visit("schemes")
@@ -199,6 +199,7 @@ RSpec.describe "Schemes scheme Features" do
                   expect(page).to have_content(location.units)
                   expect(page).to have_content(location.type_of_unit)
                   expect(page).to have_content(location.mobility_type)
+                  expect(page).to have_content(location.location_code)
                 end
               end
             end
@@ -383,11 +384,12 @@ RSpec.describe "Schemes scheme Features" do
           end
 
           it "displays information about the first created location" do
-            expect(page).to have_content "SW1P4DF"
+            expect(page).to have_content "AA11AA"
             expect(page).to have_content "Some name"
             expect(page).to have_content "Self-contained house"
             expect(page).to have_content "None"
             expect(page).to have_content "Local authority"
+            expect(page).to have_content "E09000033"
           end
 
           it "displays information about another location" do

spec/request_helper.rb

@@ -5,6 +5,11 @@ module RequestHelper
     WebMock.disable_net_connect!(allow_localhost: true)
     WebMock.stub_request(:get, /api.postcodes.io/)
       .to_return(status: 200, body: "{\"status\":404,\"error\":\"Postcode not found\"}", headers: {})
+
+    uri = "https://api.postcodes.io/postcodes/AA11AA"
+    WebMock.stub_request(:get, uri)
+           .to_return(status: 200, body: "{\"status\":200,\"result\":{\"postcode\":\"AA1 1AA\",\"quality\":1,\"eastings\":529922,\"northings\":179094,\"country\":\"England\",\"nhs_ha\":\"London\",\"longitude\":-0.12981,\"latitude\":51.495867,\"european_electoral_region\":\"London\",\"primary_care_trust\":\"Westminster\",\"region\":\"London\",\"lsoa\":\"Westminster 020C\",\"msoa\":\"Westminster 020\",\"incode\":\"4DF\",\"outcode\":\"SW1P\",\"parliamentary_constituency\":\"Cities of London and Westminster\",\"admin_district\":\"Westminster\",\"parish\":\"Westminster, unparished area\",\"admin_county\":null,\"admin_ward\":\"St James's\",\"ced\":null,\"ccg\":\"NHS North West London\",\"nuts\":\"Westminster\",\"codes\":{\"admin_district\":\"E09000033\",\"admin_county\":\"E99999999\",\"admin_ward\":\"E05000644\",\"parish\":\"E43000236\",\"parliamentary_constituency\":\"E14000639\",\"ccg\":\"E38000256\",\"ccg_id\":\"W2U3Z\",\"ced\":\"E99999999\",\"nuts\":\"TLI32\",\"lsoa\":\"E01004733\",\"msoa\":\"E02000979\",\"lau2\":\"E09000033\"}}}", headers: {})
+
     WebMock.stub_request(:post, /api.notifications.service.gov.uk\/v2\/notifications\/email/)
       .to_return(status: 200, body: "", headers: {})
     WebMock.stub_request(:post, /api.notifications.service.gov.uk\/v2\/notifications\/sms/)