The tests are unacceptable: a lot of methods aren't tested, and there are only the most basic fixed tests (which 99% of is "is this class/prop/method defined" and "is something instance of a specific class").

There are no random tests either.

Typo in the sample tests: "Lamp getter method..." instead of "Lamp setter method..." under "// test setters"

If this is intended to be a beginner-level kata, perhaps the instructions/requirements could be more explicit about the constructor (order of params?) and getters/setters (method names?). New programmers may not have learned the conventions for getting and setting.

• Needs random tests
• Duplicate

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Cheers!

Maybe provide some edge-cases with words like "aren't"/"isn't" to see the different behaviour of String#split and String#scan. I hope I am not totally wrong, but String#scan would split "aren't" into "aren" and "t"?

The information about the difference between the correct result and user answer would be helpful. You could also provide a function skeleton and not force the user to write it by himself.

Needs random test cases

The wording for the definition of a leap year is confusing. Suggest changing to “A year is known as a leap year if the year meets one of the following conditions:” or something similar.

There is no test case for intialising state to anything but "on"

Needs some random test cases.

Duplicate:
http://www.codewars.com/kata/leap-years
http://www.codewars.com/kata/leap-year