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In this section, we're going to have a general

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overview of some key guidelines and best practices we

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should stick to when writing our unit tests.

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Now, at first, this stuff might not sound

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that important, but believe me, it really is.

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It's basically industry standard best

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practices distilled down over the years.

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So do please take it all in and always

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have it at the forefront of your mind when

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you're writing a unit tests. Without sticking to these

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basic principles, you'll be writing tests, sure,

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but they're not going to be good quality unit tests.

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The test could you write needs to be easy

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to work with, navigate, maintain, interpret, and run.

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The reason being that when you write good quality

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unit tests, you're assembling a safety net which will

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help you out in future and point you quickly

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to where errors are in production code.

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And you'll sleep better at night knowing your

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production code is fully tested and robust.

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So let's get into it now and

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explore the foundations of a unit testing.