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[MUSIC]

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Hello world Andrew here, lifelong learner,
JavaScript developer, and

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teacher here at treehouse.

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As a professional developer you know
every application should be tested, but

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that doesn't stop you from
running into problems for

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example when working on big
teams with many developers,

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you work on a project and you start
introducing lots of different features.

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These can cause many much conflicts and
undesirable behavior in your code.

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Often your code is expected to run on
different operating systems and versions.

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Maybe you develop on a Mac or Windows,
but need to deploy the code to Linux.

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Dependencies are always tricky.

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It's easy to forget the safe flag
when your npm install a module.

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When someone else runs your code,

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it doesn't work because the package
.JSON isn't up to date.

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This is where a development practice
called continuous integration comes in.

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Continuous Integration or

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CI requires developers to match code into
a shared repository several times a day.

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Automated tests run and
to detect service and

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help developers find those areas easily.

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Committed infrequently makes error
handling more troublesome, in most cases

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continuous integration providers integrate
with badging control systems like GitHub.

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There are number of continuous
integration services out there for

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example, Travis CI, CircleCI,
Bamboo, Codeship and Jenkins.

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In this workshop,
we're going to take a look at Travis CI.