Please proofread this description.

• behaviour with two words of equal length isn't described nore teste
• the random tests aren't testing anything... (no ref function)

Tests are missing

proper tests missing...

You can embed that picture in the description, instead of linking to it. ![alt text](link) or an HTML img element.

Looks quite good now :)

Just a side note: You don't need to check if the return value is not falsy. It doesn't achieve anything when you should instead check against the expected result.

Yeah , sorry i have updated it to random testing :)

Well, I still dont know exactly how the test cases work , but I`m trying thank you for your comment :D

• Why use Test.assertSimilar to compare numbers? Test.assertEquals is fine
• No random tests
• The tests are not very well written. I think you need to study more how to write good tests before making more katas.

Duplicate

1 fixed test, 0 random tests.

No random tests ? check my solution ;)