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rvtk — Rocket View 3000

This project is an application skeleton for a typical AngularJS web app. You can use it to quickly bootstrap your angular webapp projects and dev environment for these projects.

The seed contains a sample AngularJS application and is preconfigured to install the Angular framework and a bunch of development and testing tools for instant web development gratification.

The seed app doesn't do much, just shows how to wire two controllers and views together.

Getting Started

To get you started you can simply clone the repository and install the dependencies:

Prerequisites

You need git to clone the repository. You can get git from here.

We also use a number of Node.js tools to initialize and test the project. You must have Node.js and its package manager (npm) installed. You can get them from here.

Clone rv3k

Clone the rv3k repository using git:

git clone https://github.com/murphpdx/rvtk
cd rvtk

Install Dependencies

We have two kinds of dependencies in this project: tools and Angular framework code. The tools help us manage and test the application.

We have preconfigured npm to automatically run bower so we can simply do:

npm install

Behind the scenes this will also call bower install. After that, you should find out that you have two new folders in your project.

  • node_modules - contains the npm packages for the tools we need
  • app/bower_components - contains the Angular framework files

Note that the bower_components folder would normally be installed in the root folder but rvtk changes this location through the .bowerrc file. Putting it in the app folder makes it easier to serve the files by a web server.

Run the Application

We have preconfigured the project with a simple development web server. The simplest way to start this server is:

npm start

Now browse to the app at localhost:8000/index.html.

Directory Layout

app/                    --> all of the source files for the application
  app.css               --> default stylesheet
  components/           --> all app specific modules
    version/              --> version related components
      version.js                 --> version module declaration and basic "version" value service
      version_test.js            --> "version" value service tests
      version-directive.js       --> custom directive that returns the current app version
      version-directive_test.js  --> version directive tests
      interpolate-filter.js      --> custom interpolation filter
      interpolate-filter_test.js --> interpolate filter tests
  directives/                --> directives folder
    efv.html            --> the partial template
    efv.js              --> the directive logic
  controllers/                --> controllers folder (controllers - business logic)
    efv-controller.js        --> this handles feeding data into the the pluggin that creates the efv (possibly do calculations on data)
    camera-controller.js     --> this handles the logic of what camera is visible and bringing the feeds into the application
    vehicleAttitude-contoller.js    -> feeds data into the vehicle attitude graphic and may do calculations to the raw data
  app.js                --> main application module
  index.html            --> app layout file (the main html template file of the app)
karma.conf.js         --> config file for running unit tests with Karma
e2e-tests/            --> end-to-end tests
  protractor-conf.js    --> Protractor config file
  scenarios.js          --> end-to-end scenarios to be run by Protractor

Testing

There are two kinds of tests in the application: Unit tests and end-to-end tests.

Running Unit Tests

The rvtk app comes preconfigured with unit tests. These are written in Jasmine, which we run with the Karma test runner. We provide a Karma configuration file to run them.

  • The configuration is found at karma.conf.js.
  • The unit tests are found next to the code they are testing and have an _test.js suffix (e.g. view1_test.js).

The easiest way to run the unit tests is to use the supplied npm script:

npm test

This script will start the Karma test runner to execute the unit tests. Moreover, Karma will start watching the source and test files for changes and then re-run the tests whenever any of them changes. This is the recommended strategy; if your unit tests are being run every time you save a file then you receive instant feedback on any changes that break the expected code functionality.

You can also ask Karma to do a single run of the tests and then exit. This is useful if you want to check that a particular version of the code is operating as expected. The project contains a predefined script to do this:

npm run test-single-run

Running End-to-End Tests

The app comes with end-to-end tests, again written in Jasmine. These tests are run with the Protractor End-to-End test runner. It uses native events and has special features for Angular applications.

  • The configuration is found at e2e-tests/protractor-conf.js.
  • The end-to-end tests are found in e2e-tests/scenarios.js.

Protractor simulates interaction with our web app and verifies that the application responds correctly. Therefore, our web server needs to be serving up the application, so that Protractor can interact with it.

Before starting Protractor, open a separate terminal window and run:

npm start

In addition, since Protractor is built upon WebDriver, we need to ensure that it is installed and up-to-date. The project is configured to do this automatically before running the end-to-end tests, so you don't need to worry about it. If you want to manually update the WebDriver, you can run:

npm run update-webdriver

Once you have ensured that the development web server hosting our application is up and running, you can run the end-to-end tests using the supplied npm script:

npm run protractor

This script will execute the end-to-end tests against the application being hosted on the development server.

Note: Under the hood, Protractor uses the Selenium Standalone Server, which in turn requires the Java Development Kit (JDK) to be installed on your local machine. Check this by running java -version from the command line.

If JDK is not already installed, you can download it here.

Updating Angular

Since the Angular framework library code and tools are acquired through package managers (npm and bower) you can use these tools to easily update the dependencies. Simply run the preconfigured script:

npm run update-deps

This will call npm update and bower update, which in turn will find and install the latest versions that match the version ranges specified in the package.json and bower.json files respectively.

Running the App during Development

The project comes preconfigured with a local development web server. It is a Node.js tool called http-server. You can start this web server with npm start, but you may choose to install the tool globally:

sudo npm install -g http-server

Then you can start your own development web server to serve static files from a folder by running:

http-server -a localhost -p 8000

Alternatively, you can choose to configure your own web server, such as Apache or Nginx. Just configure your server to serve the files under the app/ directory.

Running the App in Production

This really depends on how complex your app is and the overall infrastructure of your system, but the general rule is that all you need in production are the files under the app/ directory. Everything else should be omitted.

Angular apps are really just a bunch of static HTML, CSS and JavaScript files that need to be hosted somewhere they can be accessed by browsers.

If your Angular app is talking to the backend server via XHR or other means, you need to figure out what is the best way to host the static files to comply with the same origin policy if applicable. Usually this is done by hosting the files by the backend server or through reverse-proxying the backend server(s) and web server(s).

Continuous Integration

Travis CI

Travis CI is a continuous integration service, which can monitor GitHub for new commits to your repository and execute scripts such as building the app or running tests. The project contains a Travis configuration file, .travis.yml, which will cause Travis to run your tests when you push to GitHub.

You will need to enable the integration between Travis and GitHub. See the Travis website for instructions on how to do this.

Contact

For more information on AngularJS please check out angularjs.org.