Unit Testing

Unit testing is when you write a test for each unit (or each function/method) in a program. Each unit test is made up of assertion statements.

assertEqual: This can only be used to check scalar values (numbers or strings), not objects or arrays.

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assertWithinRange: This checks if output is within a certain range.

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assertArraysEqual:  To assert that two arrays are equal, you must first check that they’re both equal in values and lengths.

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assertObjectsEqual: objects must be converted to strings first to be compared.

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How to call an assertion:

assertEqual(findLongestPalindrome('racecar hannah'), 'racecar', 'finds longest of two palindromes');
Unit Testing

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