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In this video we'll integrate Travis CI in to a Node.js project.
Here we have a simple Node.js
project called calculator.js.
0:00
We have some tests here that test
the functionality which includes an add,
0:04
subtract, and divide function.
0:08
If you want to follow along
hit the fork repo button and
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then clone the repository
down to your local machine.
0:13
Then jump into
the calculator directory and
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then install any dependencies.
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Finally run the test suite.
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You should have nine tests passing.
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We've got three pending,
which we'll implement later.
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Now I'm going to create a branch.
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You don't have to do this, this is an
optional step but I'm going to do it for
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the integration for Travis.
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I'm gonna name a branch travis.
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It could be named anything,
it doesn't really matter.
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And then open up the code
editor of choice.
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Mine is Visual Studio code.
1:01
Now let's head over to Travis CI.
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I'm in the accounts page again and you
can select your username, and if you're
1:06
part of any organization where you forked
this repo to, you want select that.
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In my case it's
treehouse-projects/calculator.js.
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For you, it may be your username and
then calculator.js.
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So the first step is to flick the switch
to enable travis-ci on that repo.
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So let's click on that project and
here's the dashboard for the calculator.
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As you can see there's no builds for
this repository yet.
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Let's read the docs and go to JavaScript
and we can see a sample .travis.yml file.
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Notice this dot here.
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It needs that dot there or
else it won't work.
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So you can see here we've got a key,
which is language, and
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then the value is node_js.
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And then it describes all the versions
of node_js you want to test.
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If you just include 6 without any minor or
patch releases,
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it will test the latest
version of node_js.
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So let's copy those three lines of code
there, and head over to our editor.
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And let's create our .travis.yml file, and
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remember, make sure you've
got that dot there.
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Paste that in and then commit the code.
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Git commit -m "Travis integration".
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And then we can do git push, and
then set the upstream to origin travis.
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So now my local branch has been pushed
to GitHub on the travis branch.
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So we can go back now to our dashboard and
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as you can see the Travis
integration is now being tested.
3:03
This is the travis-ci
building the dependencies for
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node.js, and
as you can see it's cloning the repo.
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It's downloading the latest version
of node.js, it's running npm
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install, And testing.
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And there's all our Mocha tests.
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And it says the command
npm test exited with 0.
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Meaning, it's exited okay.
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So the build is done and as you can see,
our Travis integration has worked.
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We also have this cool little icon
up here saying the build passing.
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You can actually include this in your
documentation so you can click on this
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markdown and then copy and paste this
SVG and put that into your readme.
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Now this is where I would merge
the Travis branch into my master branch,
4:02
but since you're forking from my master,
I'm gonna keep it separate for now.
4:06
In the next video, we're gonna take
a look at when things go wrong.
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