Instruction (4)
1) should return an array by breaking up input strings into individual words
0 passing (28ms)
1 failing
1) Instruction (4) should return an array by breaking up input strings into individual words:
ReferenceError: str is not defined
at cutName (test/unit_tests_spec.js:10:5)
at Context.<anonymous> (test/unit_tests_spec.js:16:14)
npm ERR! Test failed. See above for more details.