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The ultimate goal for

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testing is to introduce the concept
of continuous deployment.

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Even though this could fill up an entire
course, I'll give you a quick summary.

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Continuous deployment is the idea that
every time a developer makes changes to

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the code, automated systems grab those
changes, tests are run on the code,

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and if everything passes, the code is
automatically deployed to production.

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If the tests fail,
the code is rejected and

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your production environment is
protected from those errors.

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Because PHPUnit is so
heavily focused on the command line,

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running the test themselves
can be easily automated.

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After all, computers are much better
at doing the same thing over and

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over and over again than humans are.

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So why not get a computer to do it for
you so

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that you can concentrate
on more important things?

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PHPUnit is a powerful tool, and
there's much more that we could cover.

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There are also other methods of testing
and other tools used for those tests.

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When you're ready to explore more testing,

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check the notes associated with this
video for additional resources.

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Until then, have fun making the world and
your code a better place.