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Introduction
1:27In this course you’ll practice a way to write JavaScript called Behavior Driven Development -- or BDD.
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Hey everyone, I'm Guil, and
this is JavaScript Unit Testing Basics.
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The material in this course assumes you
know your way around JavaScript objects,
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node, and mpm.
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So make sure you complete
all the prerequisites for
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this course before continuing.
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And if you wanna brush up on some of
those videos, I've included the links and
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the teacher's notes as well.
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In this course, you'll practice
a way to write JavaScript called,
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Behavior Driven Development or BDD.
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In BDD we write special functions,
called tests, for
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our application before we
actually write any real code.
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These tests describe
how a code should work.
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In other words, tests describe
the expected behavior of our application.
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Having these tests written already
will help us understand the code we
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want to write.
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Like an outline,
as we continue writing our code
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our tests will let us know as soon as our
programs behave the way we want them to.
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They'll also tell us when we've
accidentally broken something
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along the way.
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We'll build up our tests to cover one
small unit of our code at a time.
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This style of testing
is called unit testing.
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Since unit tests focus on small,
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meaningful chunks of functionality,
good unit tests are easy to understand.
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They prove that each piece of
our code does what we want.
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In the next video,
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I'll cover some of the ways unit
testing makes development easier.
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