build: Make native backend mandatory for all tests

This allows us one less level of indentation of all the tests. It is not
entirely true, the X11 backend test case script can run without it, but
it isn't valuable enough to run without the native backend being enabled
to complicate building.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3812>

.gitlab-ci.yml

@@ -442,8 +442,7 @@ build-without-native-backend-and-wayland@x86_64:
         -Dudev=false
         -Dwayland=false
         -Dxwayland=false
-        -Dcore_tests=false
-        -Dnative_tests=false
+        -Dtests=disabled
         -Dintrospection=false
     - meson compile -C build
     - sudo meson install --no-rebuild -C build
@@ -464,8 +463,7 @@ build-wayland-only@x86_64:
         -Dbuildtype=debugoptimized
         -Dwayland=true
         -Dxwayland=false
-        -Dcore_tests=false
-        -Dnative_tests=false
+        -Dtests=disabled
         -Dintrospection=false
     - meson compile -C build
     - sudo meson install --no-rebuild -C build

meson.build

@@ -1,6 +1,6 @@
 project('mutter', 'c',
   version: '46.1',
-  meson_version: '>= 0.60.0',
+  meson_version: '>= 1.1.0',
   license: 'GPLv2+'
 )
 
@@ -343,11 +343,10 @@ int main (int argc, char ** argv) {
 have_malloc_trim = meson.get_compiler('c').has_function('malloc_trim')
 
 have_documentation = get_option('docs')
-have_tests = get_option('tests')
-have_core_tests = false
+have_tests = get_option('tests').enable_auto_if(have_native_backend).enabled()
+have_mutter_tests = false
 have_cogl_tests = false
 have_clutter_tests = false
-have_native_tests = false
 have_kvm_tests = false
 have_tty_tests = false
 have_installed_tests = false
@@ -357,8 +356,12 @@ if have_tests
   gtk3_dep = dependency('gtk+-3.0', version: gtk3_req)
   dbusmock_dep = python.find_installation('python3', modules: ['dbusmock'], required: false)
 
-  have_core_tests = get_option('core_tests')
-  if have_core_tests
+  if not have_native_backend
+    error('Tests require the native backend to be enabled')
+  endif
+
+  have_mutter_tests = get_option('mutter_tests')
+  if have_mutter_tests
     if not have_wayland
       error('Tests require Wayland to be enabled')
     endif
@@ -369,15 +372,6 @@ if have_tests
       error('Tests require python-dbusmock')
     endif
   endif
-  have_native_tests = get_option('native_tests')
-  if have_native_tests
-    if not have_native_backend
-      error('Native tests require the native backend')
-    endif
-    if not have_remote_desktop
-      error('Native tests require remote desktop')
-    endif
-  endif
   have_kvm_tests = get_option('kvm_tests')
   if have_kvm_tests
     if not have_native_backend
@@ -754,7 +748,7 @@ summary('Xwayland byte-swapped clients', have_xwayland_byte_swapped_clients, sec
 summary('Xwayland enable EI portal', have_xwayland_enable_ei_portal, section: 'Options')
 
 summary('Enabled', have_tests, section: 'Tests')
-summary('Core tests', have_core_tests, section: 'Tests')
+summary('Mutter tests', have_mutter_tests, section: 'Tests')
 summary('Cogl tests', have_cogl_tests, section: 'Tests')
 summary('Clutter tests', have_clutter_tests, section: 'Tests')
 summary('KVM tests', have_kvm_tests, section: 'Tests')

meson_options.txt

@@ -147,22 +147,16 @@ option('clutter_tests',
   description: 'Enable clutter tests'
 )
 
-option('core_tests',
+option('mutter_tests',
   type: 'boolean',
   value: true,
   description: 'Enable mutter core tests'
 )
 
-option('native_tests',
-  type: 'boolean',
-  value: true,
-  description: 'Enable mutter native backend tests'
-)
-
 option('tests',
-  type: 'boolean',
-  value: true,
-  description: 'Enable tests globally. Specific test suites can be controlled with core_tests, clutter_tests, and cogl_tests'
+  type: 'feature',
+  value: 'auto',
+  description: 'Enable tests globally. Specific test suites can be controlled with mutter_tests, clutter_tests, and cogl_tests'
 )
 
 option('kvm_tests',

src/meson.build

@@ -1326,6 +1326,6 @@ if have_x11_client
   subdir('frames')
 endif
 
-if have_core_tests
+if have_tests
   subdir('tests')
 endif

src/tests/meson.build

@@ -310,7 +310,6 @@ test_cases += [
   },
 ]
 
-if have_native_tests
 screen_cast_client = executable('mutter-screen-cast-client',
   sources: [
     'screen-cast-client.c',
@@ -692,7 +691,6 @@ if have_native_tests
     timeout: 60,
   )
 endforeach
-endif
 
 stacking_tests = [
   'basic-x11',