add test scenario to make sure deprecated warning is triggered

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Set up Ruby ${{ matrix.ruby-version }}
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.0
+          ruby-version: 2.7
       - name: Install dependencies
         run: bundle install
       - name: Run tests

.github/workflows/gem-push.yml

@@ -13,10 +13,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
-    - name: Set up Ruby 3.0
+    - name: Set up Ruby 2.7
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 3.0
+        ruby-version: 2.7
 
     - name: Publish to RubyGems
       env:

lib/jit_preloader/preloader.rb

@@ -3,6 +3,10 @@ class Preloader < ActiveRecord::Associations::Preloader
 
     attr_accessor :records
 
+    def foo(**kwargs)
+      kwargs
+    end
+
     if Gem::Version.new(ActiveRecord::VERSION::STRING) >= Gem::Version.new("7.0.0")
       def self.attach(records)
         new(records: records.dup, associations: nil).tap do |loader|

spec/lib/jit_preloader/preloader_spec.rb

@@ -49,6 +49,11 @@
     ->(event, data){ source_map[data[:source]] << data[:association] }
   end
 
+
+  it "should warn about keyword arguments" do
+    expect(described_class.new(records: nil, associations: nil).foo({a: 1})).to eq({a: 1})
+  end
+
   context "for single table inheritance" do
     context "when preloading an aggregate for a child model" do
       let!(:contact_book) { ContactBook.create(name: "The Yellow Pages") }