Merge pull request #11478 from alphagov/WHIT-3439-gate-component-guide-behind-signon

[WHIT-3439] Gate /component-guide behind GOV.UK Signon

Author: TonyGDS

config/routes.rb

@@ -453,5 +453,7 @@ def redirect(path, options = { prefix: Whitehall.router_prefix })
 
   mount Flipflop::Engine => "/flipflop"
 
-  mount GovukPublishingComponents::Engine, at: "/component-guide"
+  constraints(GDS::SSO::AuthorisedUserConstraint.new(User::Permissions::SIGNIN)) do
+    mount GovukPublishingComponents::Engine, at: "/component-guide"
+  end
 end

test/integration/component_guide_test.rb

@@ -0,0 +1,15 @@
+require "test_helper"
+
+class ComponentGuideTest < ActionDispatch::IntegrationTest
+  test "redirects unauthenticated users to signon" do
+    ENV["GDS_SSO_MOCK_INVALID"] = "1"
+    get "/component-guide"
+    assert_redirected_to "/auth/gds"
+  end
+
+  test "allows access when signed in" do
+    login_as_admin
+    get "/component-guide"
+    assert_response :success
+  end
+end