How do I stub things in MiniTest?

Question

Within my test I want to stub a canned response for any instance of a class.

It might look like something like:

Book.stubs(:title).any_instance().returns("War and Peace") 

Then whenever I call @book.title it returns "War and Peace".

Is there a way to do this within MiniTest? If yes, can you give me an example code snippet?

Or do I need something like mocha?

MiniTest does support Mocks but Mocks are overkill for what I need.

Answer 1

  # Create a mock object   book = MiniTest::Mock.new   # Set the mock to expect :title, return "War and Piece"   # (note that unless we call book.verify, minitest will   # not check that :title was called)   book.expect :title, "War and Piece"    # Stub Book.new to return the mock object   # (only within the scope of the block)   Book.stub :new, book do     wp = Book.new # returns the mock object     wp.title      # => "War and Piece"   end 

Answer 2

I use minitest for all my Gems testing, but do all my stubs with mocha, it might be possible to do all in minitest with Mocks(there is no stubs or anything else, but mocks are pretty powerful), but I find mocha does a great job, if it helps:

require 'mocha'     Books.any_instance.stubs(:title).returns("War and Peace")