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The files array determines which files are included in the browser and which files are watched and served by Karma.

Pattern matching and basePath #

  • All of the relative patterns will get resolved using the basePath first.
  • If the basePath is a relative path, it gets resolved to the directory where the configuration file is located.
  • Eventually, all the patterns will get resolved into files using glob, so you can use minimatch expressions like test/unit/**/*.spec.js.

Ordering #

  • The order of patterns determines the order in which files are included in the browser.
  • Multiple files matching a single pattern are sorted alphabetically.
  • Each file is included exactly once. If multiple patterns match the same file, it's included as if it only matched the first pattern.

Included, served, watched #

Each pattern is either a simple string or an object with four properties:

pattern #

  • Type. String
  • No Default.
  • Description. The pattern to use for matching. This property is mandatory.

watched #

  • Type. Boolean
  • Default. true
  • Description. If autoWatch is true all files that have set watched to true will be watched for changes.

included #

  • Type. Boolean
  • Default. true
  • Description. Should the files be included in the browser using <script> tag? Use false if you want to load them manually, eg. using Require.js.

served #

  • Type. Boolean
  • Default. true
  • Description. Should the files be served by Karma's webserver?

Preprocessor transformations #

Depending on preprocessor configuration, be aware that files loaded may be transformed and no longer available in their native format. For instance, if html2js preprocessor is enabled, the actual .html files are no longer served - but rather available as window.__html__['my.html']. Read more about preprocessors.

Complete example #

Here is a complete example showing the different options possible:

files: [

  // Detailed pattern to include a file. Similarly other options can be used
  { pattern: 'lib/angular.js', watched: false },
  // Prefer to have watched false for library files. No need to watch them for changes

  // simple pattern to load the needed testfiles
  // equal to {pattern: 'test/unit/*.spec.js', watched: true, served: true, included: true}

  // this file gets served but will be ignored by the watcher
  // note if html2js preprocessor is active, reference as `window.__html__['compiled/index.html']`
  {pattern: 'compiled/index.html', watched: false},

  // this file only gets watched and is otherwise ignored
  {pattern: 'app/index.html', included: false, served: false}

Loading Assets #

By default all assets are served at http://localhost:[PORT]/base/

Example for loading images

files: [
  {pattern: "test/images/*.jpg", watched: false, included: false, served: true}

The pattern is a glob which matches the specified image assets. Watched and included are not necessary as images are not tests. However they will need to be served to the browser.

In this case an image would be accessed at http://localhost:[PORT]/base/test/images/[MY IMAGE].jpg

Notice the base in the URL, it is a reference to your basePath. You do not need to replace or provide your own base.

In addition you can use a proxy

proxies: {
  "/img/": "http://localhost:8080/base/test/images/"

Now you can fetch images in test/images at http://localhost:8080/img/[MY IMAGE].jpg

Change 8080 to the port you use

You can also use proxies without specifying the protocol, hostname, and port

proxies: {
  "/img/": "/base/test/images/"