Activesupport dependencies failing test

[amatsuda]

I found a test case that doesn't start with test_ in AS/test. So I renamed it, then I found that it's actually not passing.
The test case expects a NameError when AS tries to autoload ModuleFolder::NestedClass::Object, but in fact it autoloads ModuleFolder::NestedClass and returns ::Object with warning: toplevel constant Object referenced by ModuleFolder::NestedClass::Object.
I'm not sure what is the desired fix here. What do you think, @fxn?

[pixeltrix]

@amatsuda I'm pretty sure that @seckar knew this was a failing test when he wrote it (hence the failing_ prefix) because at the time and still today there is no way to make the test fully pass. It's checking that top level constants are not being returned by autoloading, which works for the case when the parent constant is a module but not for when the parent is a class. This is because the ancestor chain for a class includes Object but a module's ancestor chain doesn't, e.g:

>> module Foo; end
>> Foo.ancestors
=> [Foo]

vs.

>> class Bar; end
>> Bar.ancestors
=> [Bar, Object, Kernel, BasicObject]

Unfortunately, Ruby returns Object before calling const_missing so there's no way we can hook into anything to prevent it happening. Maybe we should speak to the Ruby core team to see if they can suggest something.