Diffy tests

Diffy is a visual regression tool for PHP, predominantly used with WordPress and Drupal.

In Diffy you must have created a project, set at least one environment up that Diffy can use as a benchmark (role default is dev) and provided Diffy with a set of URLs to test. For example:

---
diffy:
  main_env: dev
  test_env: custom
  test_env_url: http://my-feature-branch.example.com

In this case you have pre-configured an environment called dev in Diffy and given it some test URLs to execute. Diffy will run the tests against the dev environment, then it will test the same paths against whatever site it finds at http://my-feature-branch.example.com. You will then get a report comparing the two sites and highlighting any differences.

Default variables

---
diffy:
  install: false  # set to true if you want ce-deploy to attempt to composer install diffy
  key: asdfghjkl  # set your diffy secret key, this should be encrypted with SOPS or stored in some other secrets manager
  project_id: 1   # the numeric ID of your diffy project
  main_env: dev   # name of the 'good' environment to compare against (must be pre-configured in diffy)
  test_env: custom  # name of the environment to be compared (usually diffy's default 'custom' environment)
  test_env_url: ""  # set a base URL to use against the diffy 'custom' environment
  bin: "{{ live_symlink_dest }}/vendor/bin/diffy"  # location of diffy
  working_dir: "{{ live_symlink_dest }}"  # path to execute composer and related binaries from