[mutter] tests: Add single stacking tests with suite

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit c6d1cf4af45ea907560e850e298980e4e48cac8d
Author: Marco Trevisan (Treviño) <mail 3v1n0 net>
Date:   Wed Nov 14 02:36:35 2018 +0100

    tests: Add single stacking tests with suite
    
    Don't launch the stacking tests in one single shot, to allow better debugging
    and being able to launch just one single test using meson test.
    
    Those tests can now be all launched with:
      meson test --suite stacking [single-test-name]
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/442

 src/tests/meson.build | 41 ++++++++++++++++++++++-------------------
 1 file changed, 22 insertions(+), 19 deletions(-)
---
diff --git a/src/tests/meson.build b/src/tests/meson.build
index fd9a34803..20d70f8b2 100644
--- a/src/tests/meson.build
+++ b/src/tests/meson.build
@@ -101,26 +101,29 @@ headless_start_test = executable('mutter-headless-start-test',
   install_dir: mutter_installed_tests_libexecdir,
 )
 
-stacking_tests = files([
-  'stacking/basic-x11.metatest',
-  'stacking/basic-wayland.metatest',
-  'stacking/client-side-decorated.metatest',
-  'stacking/closed-transient.metatest',
-  'stacking/minimized.metatest',
-  'stacking/mixed-windows.metatest',
-  'stacking/set-parent.metatest',
-  'stacking/override-redirect.metatest',
-  'stacking/set-parent-exported.metatest',
-])
+stacking_tests = [
+  'basic-x11',
+  'basic-wayland',
+  'client-side-decorated',
+  'closed-transient',
+  'minimized',
+  'mixed-windows',
+  'set-parent',
+  'override-redirect',
+  'set-parent-exported',
+]
 
-test('mutter/stacking', test_runner,
-  env: test_env,
-  args: [
-    stacking_tests,
-  ],
-  is_parallel: false,
-  timeout: 60,
-)
+foreach stacking_test: stacking_tests
+  test(stacking_test, test_runner,
+    suite: ['core', 'mutter/stacking'],
+    env: test_env,
+    args: [
+      files(join_paths('stacking', stacking_test + '.metatest')),
+    ],
+    is_parallel: false,
+    timeout: 60,
+  )
+endforeach
 
 test('mutter/unit', unit_tests,
   env: test_env,