Mystery Job

bar.rb

class Foo
  class Bar
    # uninitialized constant:
    Baz
    def self.bar
      puts "hello from bar!"
    end
  end
end

foo.rb

class Foo
  def self.foo
    Bar.bar
  end
end

foo_spec.rb

RSpec.describe Foo do
  it "does something" do
    Foo.foo
  end

  it "does something else" do
    Foo.foo
  end
end

rspec

Randomized with seed 27098
FF

Failures:

  1) Foo does something else
     Failure/Error: Baz
     
     NameError:
       uninitialized constant Foo::Bar::Baz
     # ./lib/foo/bar.rb:3:in `<class:Bar>'
     # ./lib/foo/bar.rb:2:in `<class:Foo>'
     # ./lib/foo/bar.rb:1:in `<top (required)>'
     # ./lib/foo.rb:3:in `foo'
     # ./spec/foo_spec.rb:7:in `block (2 levels) in <top (required)>'

  2) Foo does something
     Failure/Error: Bar.bar
     
     NoMethodError:
       undefined method `bar' for Foo::Bar:Class
     # ./lib/foo.rb:3:in `foo'
     # ./spec/foo_spec.rb:3:in `block (2 levels) in <top (required)>'

Finished in 0.63286 seconds (files took 4.93 seconds to load)
2 examples, 2 failures

Failed examples:

rspec ./spec/foo_spec.rb:6 # Foo does something else
rspec ./spec/foo_spec.rb:2 # Foo does something