Question

I’m new to rspec. The following syntax is confusing:

describe MyClass::Something do

What does Something refer to? The rspec tests I’m looking over contain the above line. However MyClass doesn’t contain anything related to Something.

Answer 1

You are confused by Ruby syntax, not RSpec syntax. MyClass is a module, and Something is a class or module inside the MyClass module. The :: is the scope resolution operator to tell Ruby which Something you are looking for.

module Foo
  class Bar
    def say_hello
      puts "hello"
    end
  end
end

foo = Foo::Bar.new
foo.say_hello
#prints "hello"

See http://ruby-doc.org/docs/ProgrammingRuby/html/tut_modules.html for more on modules.