rspec_issue

This demonstrates an issue with stubbing the method of a base class where the following are true:

• The child method has overriden the base method
• The methods accept blocks
• The child method passed the block to the base method
• The child method passes a block, where that block also calls the child method

Actual and correct output:

$ irb -r ./program.rb
2.4.4 :001 > Program.new.run
child foo
base foo
running
=> nil
2.4.4 :002 > Program.new.run_nested
child foo
base foo
child foo
base foo
running nested
=> nil

Failing test that should be succeeding

$ rspec example_spec.rb
.F

Failures:

 1) Program should only stub the base in nested calls
    Failure/Error: expect(STDOUT).to receive(:puts).with('child foo').twice

      (#<IO:<STDOUT>>).puts("child foo")
          expected: 2 times with arguments: ("child foo")
          received: 1 time with arguments: ("child foo")
    # ./example_spec.rb:25:in `block (2 levels) in <top (required)>'

Finished in 0.00756 seconds (files took 0.07761 seconds to load)
2 examples, 1 failure

Failed examples:

rspec ./example_spec.rb:19 # Program should only stub the base in nested calls