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• Piwik PRO is hiring a Technical Support Specialist (Remote)

  13 mars 2015, par Piwik Core Team — Jobs

  At Piwik and Piwik PRO we develop the leading open source web analytics platform, used by more than one million websites worldwide. Our vision is to build the best open alternative to Google Universal Analytics. We are growing and now looking for a Technical Support Specialist !

  What will you be doing ?

  • Supporting Piwik PRO clients on a daily basis – providing rapid responses via phone and email.
  • Participating in calls with Piwik PRO clients analyzing requirements for enterprise customers.
  • Onboarding clients – planning and coordinating the implementation with the dedicated technical team.
  • Communicating complex problems to the dedicated technical team.

  We can promise you :

  • A competitive salary.
  • The opportunity to develop your skills and gain more experience by working on exceptional projects.
  • Access to a regularly updated resource library and the opportunity to contribute to it.
  • Flexible working hours.

  Desired Skills and Experience

  You won’t make it without :

  • A solid technical background and a familiarity with the IT sector.
  • A receptive mind.
  • Great English communication skills (speaking, reading, writing, and listening).
  • Previous experience of working with corporate clients and a sixth sense for striking up relationships.
  • Appropriately mixed abilities : solid communication skills, inquisitiveness and an analytical mind (have the ability to draw conclusions based on gathered data).
  • Great self-organization skills.

  About Piwik PRO

  At Piwik and Piwik PRO we develop the leading open source web analytics platform, used by over 1.1M websites worldwide and is currently ranked the 7th most used web analytics tool in the world. Our vision is to build the best open alternative to Google Universal Analytics.

  The Piwik platform collects, stores and processes a lot of information : hundreds of millions of data points each month. We create intuitive, simple and beautiful reports that delight our users.

  Piwik PRO provides cloud hosting solutions and enterprise-level support and consultancy services. We’re in the process of expanding our US team and are currently seeking to hire a Technical Support Specialist who will focus on assisting our US clients.

  Location

  Ideally you will be located in the USA or Canada (Remote work).

  Apply online

  To apply for this position, please Apply online here. We look forward to receiving your applications !

• Is it possible to stream netflix in either an embedded version of chromium or using ffmpeg ?

  24 février 2015, par OzBarry

  I’m looking into building an all-in-one media streaming application for my raspberry pi2, since there are currently very few options, and it’s scalable to other systems. The biggest hurdle I’ve found in requirements gathering is being able to stream netflix.

  There have been very few attempts at getting chromium to stream netflix, and even fewer on armv7h systems, so I’m trying to look at alternatives.

  My first thought is using a combination of curl and ffmpeg, and I think this would somehow work, however this doesn’t solve the issue with the DRM.

  Another option would be to stream from another computer into my application. This solves the DRM issue, but encumbers my software setup, burdens users to have at least one computer that can also stream netflix, and will suffer from lag (netflix -> computer a -> computer b). The last point can be sorted out with buffering, but that may not be ideal, since it adds stress to the raspberry pi machine.

  As a side note, I am using SDL2 for rendering, so I would be fine with a binary library that decodes the frames and audio, and sends it directly to a SDL renderer ad audio stream without allowing me to modify/copy it.

  Does anything like these options exist ? I really just want to get a legit stream from netflix if possible, while not interferring with the DRM.

• How to write UI tests for your plugin – Introducing the Piwik Platform

  18 février 2015, par Thomas Steur — Development

  This is the next post of our blog series where we introduce the capabilities of the Piwik platform (our previous post was How to write unit tests for your plugin). This time you’ll learn how to write UI tests in Piwik. For this tutorial you will need to have basic knowledge of JavaScript and the Piwik platform.

  What is a UI test ?

  Some might know a UI test under the term ‘CSS test’ or ‘screenshot test’. When we speak of UI tests we mean automated tests that capture a screenshot of a URL and then compare the result with an expected image. If the images are not exactly the same the test will fail. For more information read our blog post about UI Testing.

  What is a UI test good for ?

  We use them to test our PHP Controllers, Twig templates, CSS, and indirectly test our JavaScript. We do usually not write Unit or Integration tests for our controllers. For example we use UI tests to ensure that the installation, the login and the update process works as expected. We also have tests for most pages, reports, settings, etc. This increases the quality of our product and saves us a lot of time as it is easy to write and maintain such tests. All UI tests are executed on Travis after each commit and compared with our expected screenshots.

  Getting started

  In this post, we assume that you have already installed Piwik 2.11.0 or later via git, set up your development environment and created a plugin. If not, visit the Piwik Developer Zone where you’ll find the tutorial Setting up Piwik and other Guides that help you to develop a plugin.

  Next you need to install the needed packages to execute UI tests.

  Let’s create a UI test

  We start by using the Piwik Console to create a new UI test :

  ./console generate:test --testtype ui

  The command will ask you to enter the name of the plugin the created test should belong to. I will use the plugin name “Widgetize”. Next it will ask you for the name of the test. Here you usually enter the name of the page or report you want to test. I will use the name “WidgetizePage” in this example. There should now be a file plugins/Widgetize/tests/UI/WidgetizePage_spec.js which contains already an example to get you started easily :

  describe("WidgetizePage", function () {
  
      var generalParams = 'idSite=1&period=day&date=2010-01-03';
  
  
  
      it('should load a simple page by its module and action', function (done) {
  
          var screenshotName = 'simplePage';
  
          // will save image in "processed-ui-screenshots/WidgetizePageTest_simplePage.png"
  
  
  
          expect.screenshot(screenshotName).to.be.capture(function (page) {
  
              var urlToTest = "?" + generalParams + "&module=Widgetize&action=index";
  
              page.load(urlToTest);
  
          }, done);
  
      });
  
  });

  What is happening here ?

  This example declares a new set of specs by calling the method describe(name, callback) and within that a new spec by calling the method it(description, func). Within the spec we load a URL and once loaded capture a screenshot of the whole page. The captured screenshot will be saved under the defined screenshotName. You might have noticed we write our UI tests in BDD style.

  Capturing only a part of the page

  It is good practice to not always capture the full page. For example many pages contain a menu and if you change that menu, all your screenshot tests would fail. To avoid this you would instead have a separate test for your menu. To capture only a part of the page simply specify a jQuery selector and call the method captureSelector instead of capture :

  var contentSelector = '#selector1, .selector2 .selector3';
  
  // Only the content of both selectors will be in visible in the captured screenshot
  
  expect.screenshot('page_partial').to.be.captureSelector(contentSelector, function (page) {
  
      page.load(urlToTest);
  
  }, done);

  Hiding content

  There is a known issue with sparklines that can fail tests randomly. Also version numbers or a date that changes from time to time can fail tests without actually having an error. To avoid this you can prevent elements from being visible in the captured screenshot via CSS as we add a CSS class called uiTest to the HTML element while tests are running.

  .uiTest .version { visibility:hidden }

  Running a test

  To run the previously generated tests we will use the command tests:run-ui :

  ./console tests:run-ui WidgetizePage

  After running the tests for the first time you will notice a new folder plugins/PLUGINNAME/tests/UI/processed-ui-screenshots in your plugin. If everything worked, there will be an image for every captured screenshot. If you’re happy with the result it is time to copy the file over to the expected-ui-screenshots folder, otherwise you have to adjust your test until you get the result you want. From now on, the newly captured screenshots will be compared with the expected images whenever you execute the tests.

  Fixing a test

  At some point your UI test will fail, for example due to expected CSS changes. To fix a test all you have to do is to copy the captured screenshot from the folder processed-ui-screenshots to the folder expected-ui-screenshots.

  Executing the UI tests on Travis

  In case you have not generated a .travis.yml file for your plugin yet you can do this by executing the following command :

  ./console generate:travis-yml --plugin PLUGINNAME

  Next you have to activate Travis for your repository.

  Advanced features

  Isn’t it easy to create a UI test ? We never even created a file ! Of course you can accomplish even more if you want. For example you can specify a fixture to be inserted before running the tests which is useful when your plugin requires custom data. You can also control the browser as it was a human by clicking, moving the mouse, typing text, etc. If you want to discover more features have a look at our existing test cases.

  If you have any feedback regarding our APIs or our guides in the Developer Zone feel free to send it to us.