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 0:11 then clone the repository down to your local machine. 0:13 Then jump into the calculator directory and 0:20 then install any dependencies. 0:25 Finally run the test suite. 0:32 You should have nine tests passing. 0:35 We've got three pending, which we'll implement later. 0:38 Now I'm going to create a branch. 0:42 You don't have to do this, this is an optional step but I'm going to do it for 0:44 the integration for Travis. 0:48 I'm gonna name a branch travis. 0:53 It could be named anything, it doesn't really matter. 0:55 And then open up the code editor of choice. 0:58 Mine is Visual Studio code. 1:01 Now let's head over to Travis CI. 1:03 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. 1:10 In my case it's treehouse-projects/calculator.js. 1:15 For you, it may be your username and then calculator.js. 1:18 So the first step is to flick the switch to enable travis-ci on that repo. 1:22 So let's click on that project and here's the dashboard for the calculator. 1:27 As you can see there's no builds for this repository yet. 1:32 Let's read the docs and go to JavaScript and we can see a sample .travis.yml file. 1:35 Notice this dot here. 1:42 It needs that dot there or else it won't work. 1:43 So you can see here we've got a key, which is language, and 1:46 then the value is node_js. 1:51 And then it describes all the versions of node_js you want to test. 1:54 If you just include 6 without any minor or patch releases, 1:57 it will test the latest version of node_js. 2:02 So let's copy those three lines of code there, and head over to our editor. 2:06 And let's create our .travis.yml file, and 2:13 remember, make sure you've got that dot there. 2:19 Paste that in and then commit the code. 2:22 Git commit -m "Travis integration". 2:32 And then we can do git push, and then set the upstream to origin travis. 2:40 So now my local branch has been pushed to GitHub on the travis branch. 2:50 So we can go back now to our dashboard and 2:57 as you can see the Travis integration is now being tested. 3:03 This is the travis-ci building the dependencies for 3:07 node.js, and as you can see it's cloning the repo. 3:13 It's downloading the latest version of node.js, it's running npm 3:21 install, And testing. 3:26 And there's all our Mocha tests. 3:31 And it says the command npm test exited with 0. 3:34 Meaning, it's exited okay. 3:37 So the build is done and as you can see, our Travis integration has worked. 3:39 We also have this cool little icon up here saying the build passing. 3:47 You can actually include this in your documentation so you can click on this 3:51 markdown and then copy and paste this SVG and put that into your readme. 3:55 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. 4:11