[mutter] ci: Enable native backend and screen cast tests

[Marge Bot <marge-bot src gnome org>]

commit 3d2d5cd334cddf419da464531448c33038f09f56
Author: Jonas Ådahl <jadahl gmail com>
Date:   Sat Feb 13 18:49:58 2021 +0100

    ci: Enable native backend and screen cast tests
    
    With the surfaceless mode in the headless backend, it's now possible to
    initiate the headless mode without any mode setting devices, or render
    nodes, without any special CI runner privileges.
    
    The native backend tests include screen cast tests, so make them
    possible to run by starting pipewire. Testing shows that enabling audio
    support (pulseaudio & jack compat layers) makes the tests dead lock and
    eventually timeout, so disable those features for now.
    
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1698>

 .gitlab-ci.yml          | 4 ++--
 .gitlab-ci/run-tests.sh | 7 +++++++
 2 files changed, 9 insertions(+), 2 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 32612bff60..19ce3c5207 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -191,7 +191,7 @@ build-fedora-container@aarch64:
     - .fdo.distribution-image@fedora
   stage: build
   script:
-    - meson . build -Dbuildtype=debugoptimized -Db_coverage=true -Degl_device=true -Dwayland_eglstream=true 
-Dnative_tests=false --werror --prefix /usr
+    - meson . build -Dbuildtype=debugoptimized -Db_coverage=true -Degl_device=true -Dwayland_eglstream=true 
--werror --prefix /usr
     - ninja -C build
     - ninja -C build install
   artifacts:
@@ -221,7 +221,7 @@ build-without-opengl-and-glx@x86_64:
   needs:
     - build-fedora-container@x86_64
   script:
-    - meson . build -Dbuildtype=debugoptimized -Dopengl=false -Dglx=false -Degl_device=true 
-Dwayland_eglstream=true -Dnative_tests=false --werror --prefix /usr
+    - meson . build -Dbuildtype=debugoptimized -Dopengl=false -Dglx=false -Degl_device=true 
-Dwayland_eglstream=true --werror --prefix /usr
     - ninja -C build
     - ninja -C build install
   artifacts:
diff --git a/.gitlab-ci/run-tests.sh b/.gitlab-ci/run-tests.sh
index 34c66b9927..b0a3d7dd14 100755
--- a/.gitlab-ci/run-tests.sh
+++ b/.gitlab-ci/run-tests.sh
@@ -5,6 +5,13 @@ set -e
 dconf update
 glib-compile-schemas $GSETTINGS_SCHEMA_DIR
 
+# Disable audio support to not dead lock screen cast tests
+rm -f /etc/pipewire/media-session.d/with-jack
+rm -f /etc/pipewire/media-session.d/with-pulseaudio
+pipewire &
+
+sleep 2
+
 export MUTTER_DEBUG_DUMMY_MODE_SPECS="800x600@10.0"
 
 xvfb-run -s '+iglx -noreset' \