Add an optional `inherit` argument to Module#autoload?

[Feature #15777]

Closes: https://github.com/ruby/ruby/pull/2173

2 files changed, 18 insertions, 0 deletions

diff --git a/spec/ruby/core/module/autoload_spec.rb b/spec/ruby/core/module/autoload_spec.rb
index eaad4b8df6..09fbafd51c 100644
--- a/spec/ruby/core/module/autoload_spec.rb
+++ b/spec/ruby/core/module/autoload_spec.rb
@@ -11,6 +11,18 @@ describe "Module#autoload?" do
   it "returns nil if no file has been registered for a constant" do
     ModuleSpecs::Autoload.autoload?(:Manualload).should be_nil
   end
+
+  it "returns the name of the file that will be autoloaded if an ancestor defined that autoload" do
+    ModuleSpecs::Autoload::Parent.autoload :AnotherAutoload, "another_autoload.rb"
+    ModuleSpecs::Autoload::Child.autoload?(:AnotherAutoload).should == "another_autoload.rb"
+  end
+
+  ruby_version_is "2.7" do
+    it "returns nil if an ancestor defined that autoload but recursion is disabled" do
+      ModuleSpecs::Autoload::Parent.autoload :AnotherAutoload, "another_autoload.rb"
+      ModuleSpecs::Autoload::Child.autoload?(:AnotherAutoload, false).should be_nil
+    end
+  end
 end
 
 describe "Module#autoload" do
diff --git a/spec/ruby/core/module/fixtures/classes.rb b/spec/ruby/core/module/fixtures/classes.rb
index f93c39683e..ef70eaf9cf 100644
--- a/spec/ruby/core/module/fixtures/classes.rb
+++ b/spec/ruby/core/module/fixtures/classes.rb
@@ -386,6 +386,12 @@ module ModuleSpecs
       end
     end
 
+    class Parent
+    end
+
+    class Child < Parent
+    end
+
     module FromThread
       module A
         autoload :B, fixture(__FILE__, "autoload_empty.rb")