Fix `with_options` to allow string key options

activesupport/lib/active_support/option_merger.rb

@@ -24,9 +24,20 @@ def method_missing(method, *arguments, &block)
           options = @options
         end
 
-        if options
-          @context.__send__(method, *arguments, **options, &block)
-        else
+        invoke_method(method, arguments, options, &block)
+      end
+
+      if RUBY_VERSION >= "2.7"
+        def invoke_method(method, arguments, options, &block)
+          if options
+            @context.__send__(method, *arguments, **options, &block)
+          else
+            @context.__send__(method, *arguments, &block)
+          end
+        end
+      else
+        def invoke_method(method, arguments, options, &block)
+          arguments << options if options
           @context.__send__(method, *arguments, &block)
         end
       end

activesupport/test/option_merger_test.rb

@@ -8,13 +8,21 @@ def setup
     @options = { hello: "world" }
   end
 
+  def test_method_with_options_merges_string_options
+    local_options = { "cool" => true }
+
+    with_options(@options) do |o|
+      assert_equal local_options, method_with_options(local_options)
+      assert_equal @options.merge(local_options), o.method_with_options(local_options)
+    end
+  end
+
   def test_method_with_options_merges_options_when_options_are_present
     local_options = { cool: true }
 
     with_options(@options) do |o|
       assert_equal local_options, method_with_options(local_options)
-      assert_equal @options.merge(local_options),
-        o.method_with_options(local_options)
+      assert_equal @options.merge(local_options), o.method_with_options(local_options)
       assert_equal @options.merge(local_options), o.method_with_kwargs(local_options)
       assert_equal @options.merge(local_options), o.method_with_kwargs_only(local_options)
     end
@@ -35,13 +43,11 @@ def test_method_with_options_allows_to_overwrite_options
 
     with_options(@options) do |o|
       assert_equal local_options, method_with_options(local_options)
-      assert_equal @options.merge(local_options),
-        o.method_with_options(local_options)
+      assert_equal @options.merge(local_options), o.method_with_options(local_options)
       assert_equal local_options, o.method_with_options(local_options)
     end
     with_options(local_options) do |o|
-      assert_equal local_options.merge(@options),
-        o.method_with_options(@options)
+      assert_equal local_options.merge(@options), o.method_with_options(@options)
     end
   end
 
@@ -75,8 +81,7 @@ def test_nested_method_with_options_containing_hashes_going_deep
   def test_nested_method_with_options_using_lambda
     local_lambda = lambda { { lambda: true } }
     with_options(@options) do |o|
-      assert_equal @options.merge(local_lambda.call),
-        o.method_with_options(local_lambda).call
+      assert_equal @options.merge(local_lambda.call), o.method_with_options(local_lambda).call
     end
   end