[mutter] (14 commits) Created branch wip/3v1n0/run-tests-in-ci

[Marco Trevisan <marcotrevi src gnome org>]

The branch 'wip/3v1n0/run-tests-in-ci' was created.

Summary of new commits:

  4334534... tests: Accept warnings when initializing mutter
  5b13372... meson, tests: Add missing stacking tests
  984d27f... tests: Add accept_focus command to client and runner
  7c89167... tests: Add take_focus command to runner and client
  26cb0a5... tests, stacking: Add tests with no-input and no-take-focus 
  a5f360c... workspace: Focus only ancestors who can be actually focused
  ef3ea0a... test-runner: Add assert_focused command
  08f9206... tests: Verify focused window in closed-transient tests
  4c60716... window: Add is_focusable class method
  8652ec9... window-x11: Focus the default window waiting for take focus
  0242c1a... meson, tests: Add single stacking tests with suite
  dec20d1... meson, tests: Use suites for test cases
  0503eca... tests: add headless_tests support
  87b41e4... gitlab-ci: run tests too