Created unified system for running tests in travis for Piwik Core and any Piwik plugin. System includes a console command (generate:travis-yml) that generates a .travis.yml file for a plugin or core. The travis file will check in travis if it needs to be updated, and if so it will fail the build and tell the user. If a specific command line option is specified supplying a github user token, the .travis.yml file will be updated within travis automatically.

Notes:

  - comments and non-travis sections will be preserved
  - includes logic for plugins to test themselves against latest stable version instead of just on master
  - the system is primarily controlled by environment variables. developers can change/add variables in .travis.yml and the auto-updating will preserve the changes.

  - moved all API URL generation logic & API response handling logic to separate classes
  - created ApiTestConfig class to hold API test options (and documentation for properties)
  - remove unnecessary IntegrationTestCase properties and methods (including apiNotToCall/apiToCall)
  - remove as many unnecessary API test options as possible (including abandonedCarts, hackDeleteRangeArchivesBefore)
  - rename checkRequestResponse to assertApiResponseHasNoError

this potentially indicates a stalled build or something wrong with the build itself.
https://travis-ci.org/piwik/piwik/jobs/25761087#L252

this potentially indicates a stalled build or something wrong with the build itself.
https://travis-ci.org/piwik/piwik/jobs/25761087#L252

Allow plugin UI tests to have name different than plugin. Added --plugin option to screenshot test runner that filters tests based on their location.

Add initial code to allow custom fixtures for screenshot tests & allow plugins to execute only plugin tests in travis.