karma-firefox-launcher

2018-09-16 admin

karma-firefox-launcher是什么

什么是karma-firefox-launcher,A Karma plugin. Launcher for Firefox.

karma-firefox-launcher使用教程帮助文档

karma-firefox-launcher

js-standard-style npm version npm downloads

Build Status Dependency Status devDependency Status

Launcher for Mozilla Firefox.

Installation

The easiest way is to keep karma-firefox-launcher as a devDependency in your package.json.

You can simple do it by:

npm install karma-firefox-launcher --save-dev

Configuration

// karma.conf.js
module.exports = function(config) {
  config.set({
    browsers: ['Firefox', 'FirefoxDeveloper', 'FirefoxAurora', 'FirefoxNightly'],
  })
}

You can pass list of browsers as a CLI argument too:

karma start --browsers Firefox,Chrome

Custom Preferences

To configure preferences for the Firefox instance that is loaded, you can specify a custom launcher in your Karma config with the preferences under the prefs key:

browsers: ['FirefoxAutoAllowGUM'],

customLaunchers: {
    FirefoxAutoAllowGUM: {
        base: 'Firefox',
        prefs: {
            'media.navigator.permission.disabled': true
        }
    }
}

Loading Firefox Extensions

If you have extensions that you want loaded into the browser on startup, you can specify the full path to each extension in the extensions key:

browsers: ['FirefoxWithMyExtension'],

customLaunchers: {
    FirefoxWithMyExtension: {
        base: 'Firefox',
        extensions: [
          path.resolve(__dirname, 'helpers/extensions/myCustomExt@suchandsuch.xpi'),
          path.resolve(__dirname, 'helpers/extensions/myOtherExt@soandso.xpi')
        ]
    }
}

Please note: the extension name must exactly match the ‘id’ of the extension. You can discover the ‘id’ of your extension by extracting the .xpi (i.e. unzip XXX.xpi) and opening the install.RDF file with a text editor, then look for the em:id tag under the Description tag. If your extension manifest looks something like this:

<?xml version="1.0" encoding="utf-8"?>
   <RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:em="http://www.mozilla.org/2004/em-rdf#">
  <Description about="urn:mozilla:install-manifest">
    <em:id>myCustomExt@suchandsuch</em:id>
    <em:version>1.0</em:version>
    <em:type>2</em:type>
    <em:bootstrap>true</em:bootstrap>
    <em:unpack>false</em:unpack>

    [...]
  </Description>
</RDF>

Then you should name your extension myCustomExt@suchandsuch.xpi.


For more information on Karma see the homepage.

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