list_undefined.feature

Feature: List undefined steps
  In order to speed up development
  It is useful to see a report of undefined steps encountered in a test run
  
  Scenario: List undefined
    When I run nose -v --tags @one --list-undefined examples/self_test
    Then it should fail with colorized output
        """
        Sample: Missing ... UNDEFINED: "missing" # examples{sep}self_test{sep}features{sep}sample.feature:7
        Sample: Passing ... ok
        Sample: Failing ... ERROR
         
        ======================================================================
        ERROR: Sample: Failing
        ----------------------------------------------------------------------
        Traceback (most recent call last):
          File "{cwd}{sep}examples{sep}self_test{sep}features{sep}steps.py", line 14, in failing
            flunker()
          File "{cwd}{sep}examples{sep}self_test{sep}features{sep}steps.py", line 5, in flunker
            raise Exception("FAIL")
        Exception: FAIL
        
        @one
        Feature: Sample
            @four
            Scenario: Failing
                given failing                            # examples{sep}self_test{sep}features{sep}sample.feature:19
        
        ======================================================================
        Tests with undefined steps
        ----------------------------------------------------------------------
        @one
        Feature: Sample
            @two @three
            Scenario: Missing
                given missing                            # examples{sep}self_test{sep}features{sep}sample.feature:7

        You can implement step definitions for the missing steps with these snippets:

        @Given(r"^missing$")
        def given_missing():
            # code here

        ----------------------------------------------------------------------
        Ran 3 tests in {time}
        
        FAILED (UNDEFINED=1, errors=1)
        """