describe and it blocks

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In mocha we group the test using the describe function and define test using the it function. These two functions can be used to make your test suite complete, maintainable, and expressive in the following ways:

• Structure your test suite: you can organize tests into nested groups that reflex the structure of your implementation code.
• Provide informative messages: you can define your tests using human-readable strings.

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If you are testing a Math object with the method .max, you could use the following test code:

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Both the describe and it functions accept two parameters: a descriptive string and a callback function. Though the functions are flexible, they are commonly used in the structure above: nest describe blocks to resemble the structure of your implementation code and write individual tests in it blocks. This makes your test suite isolated, maintainable, and expressive.

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1. Write a describe-describe-it block for the function Math.min().
2. In test/index_test.js, create your first describe block using 'Math' as the descriptive string.
3. Within the block, create another describe block using '.min' as the descriptive string.
4. Within the block, create an it block using 'returns the argument with the lowest value' as the descriptive string.