Redirecting with trailing slash with query parameters (tricknotes#595)

Fixes the bug when redirecting with trailing slash with query parameters
resulting in an invalid url
eg: https://app.com?query=foo would redirect to
https://app.com?query=foo/, which is invalid

This PR fixes this issue adding the trailing slash before the query
parameters
eg: https://app.com?query=foo would be redirected to
https://app.com/?query=foo

In order to retain a passing test suite, use ember-new-output v4.0.0.

bin/setup_ember

@@ -6,7 +6,7 @@ setup_ember() {
   local target="${1-spec/dummy/my-app}"
 
   if ! [ -d $target ]; then
-    git clone -b stable https://github.com/ember-cli/ember-new-output.git $target
+    git clone -b 'v4.0.0' https://github.com/ember-cli/ember-new-output.git $target
 
     echo '-- Make router catchall routes'
     sed -i -e 's/auto/hash/' $target/config/environment.js

lib/ember_cli/route_helpers.rb

@@ -19,7 +19,7 @@ def mount_ember_app(app_name, to:, **options)
           redirect_if_missing_trailing_slash = {
             constraints: EmberCli::TrailingSlashConstraint.new,
             to: redirect(-> (_, request) {
-              File.join(request.original_fullpath, "")
+              File.join(request.path, "/?#{request.query_parameters.to_query}")
             }),
           }
 

lib/ember_cli/trailing_slash_constraint.rb

@@ -1,7 +1,7 @@
 module EmberCli
   class TrailingSlashConstraint
     def matches?(request)
-      !request.original_fullpath.to_s.ends_with?("/")
+      !request.original_fullpath.to_s.split("?").first.end_with?("/")
     end
   end
 end

spec/features/user_views_ember_app_spec.rb

@@ -43,6 +43,22 @@
     expect(current_path).to eq("/asset-helpers/")
   end
 
+  scenario "is redirected with trailing slash with query params", js: false do
+    expect(embedded_path(query: "foo")).to eq("/asset-helpers?query=foo")
+
+    visit embedded_path(query: "foo")
+
+    expect(page).to have_current_path("/asset-helpers/?query=foo")
+  end
+
+  scenario "is not redirected with trailing slash with params", js: false do
+    expect(embedded_path(query: "foo")).to eq("/asset-helpers?query=foo")
+
+    visit "/asset-helpers/?query=foo"
+
+    expect(page).to have_current_path("/asset-helpers/?query=foo")
+  end
+
   def have_client_side_asset
     have_css %{img[src*="logo.png"]}
   end