Ruby test

h = Hash.new
h = {}

a = Array.new
a = []

class SomeClass
   # ...
end

SomeClass = Class.new do
   # ...
end

class MyHash < Hash
   # ...
end

MyHash = Class.new(MyHash) do
   # ...
end


module SomeModule
  def some_method
  end
end

SomeModule = Module.new do
  def module_method
  end
end

class A
  def some_method(arg1, arg2)
    # ... doing some stuff
  end

  define_method(:some_method) do |arg1, arg2|
    # ... doing some stuff
  end
end