context/test: Add 'no-x11' and 'test-client' constructor flags

The 'no-x11' one will inhibit Xwayland from starting, and 'test-client'
will make sure the test client path is properly discovered.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1861>

src/tests/headless-start-test.c

@@ -170,7 +170,8 @@ main (int argc, char *argv[])
 {
   g_autoptr (MetaContext) context = NULL;
 
-  context = meta_create_test_context (META_CONTEXT_TEST_TYPE_NESTED);
+  context = meta_create_test_context (META_CONTEXT_TEST_TYPE_NESTED,
+                                      META_CONTEXT_TEST_FLAG_NO_X11);
   g_assert (meta_context_configure (context, &argc, &argv, NULL));
 
   init_tests ();

src/tests/meta-context-test.c

@@ -25,6 +25,7 @@
 #include <glib.h>
 #include <gio/gio.h>
 
+#include "core/main-private.h"
 #include "tests/meta-backend-test.h"
 #include "tests/test-utils.h"
 #include "wayland/meta-wayland.h"
@@ -49,6 +50,7 @@ struct _MetaContextTest
   GObject parent;
 
   MetaContextTestType type;
+  MetaContextTestFlag flags;
 };
 
 G_DEFINE_TYPE (MetaContextTest, meta_context_test, META_TYPE_CONTEXT)
@@ -59,6 +61,7 @@ meta_context_test_configure (MetaContext   *context,
                              char        ***argv,
                              GError       **error)
 {
+  MetaContextTest *context_test = META_CONTEXT_TEST (context);
   MetaContextClass *context_class =
     META_CONTEXT_CLASS (meta_context_test_parent_class);
   const char *plugin_name;
@@ -69,7 +72,8 @@ meta_context_test_configure (MetaContext   *context,
   g_test_init (argc, argv, NULL);
   g_test_bug_base ("https://gitlab.gnome.org/GNOME/mutter/issues/");
 
-  meta_ensure_test_client_path (*argc, *argv);
+  if (context_test->flags & META_CONTEXT_TEST_FLAG_TEST_CLIENT)
+    meta_ensure_test_client_path (*argc, *argv);
 
   meta_wayland_override_display_name ("mutter-test-display");
   meta_xwayland_override_display_number (512);
@@ -224,7 +228,8 @@ meta_context_test_run_tests (MetaContextTest *context_test)
 }
 
 MetaContext *
-meta_create_test_context (MetaContextTestType type)
+meta_create_test_context (MetaContextTestType type,
+                          MetaContextTestFlag flags)
 {
   MetaContextTest *context_test;
 
@@ -232,6 +237,12 @@ meta_create_test_context (MetaContextTestType type)
                                "name", "Mutter Test",
                                NULL);
   context_test->type = type;
+  context_test->flags = flags;
+
+  /* NOTE: This will be removed in a follow up commit, but is needed
+   * until the override method is replaced. */
+  if (flags & META_CONTEXT_TEST_FLAG_NO_X11)
+    meta_override_x11_display_policy (META_X11_DISPLAY_POLICY_DISABLED);
 
   return META_CONTEXT (context_test);
 }

src/tests/meta-context-test.h

@@ -31,12 +31,21 @@ typedef enum _MetaContextTestType
   META_CONTEXT_TEST_TYPE_NESTED,
 } MetaContextTestType;
 
+typedef enum _MetaContextTestFlag
+{
+  META_CONTEXT_TEST_FLAG_NONE = 0,
+  META_CONTEXT_TEST_FLAG_TEST_CLIENT = 1 << 0,
+  META_CONTEXT_TEST_FLAG_NO_X11 = 1 << 1,
+} MetaContextTestFlag;
+
 #define META_TYPE_CONTEXT_TEST (meta_context_test_get_type ())
 G_DECLARE_FINAL_TYPE (MetaContextTest, meta_context_test,
                       META, CONTEXT_TEST,
                       MetaContext)
 
-MetaContext * meta_create_test_context (MetaContextTestType type);
+MetaContext * meta_create_test_context (MetaContextTestType type,
+                                        MetaContextTestFlag flags);
+
 
 int meta_context_test_run_tests (MetaContextTest *context_test);
 

src/tests/native-headless.c

@@ -37,7 +37,8 @@ main (int    argc,
 {
   g_autoptr (MetaContext) context = NULL;
 
-  context = meta_create_test_context (META_CONTEXT_TEST_TYPE_HEADLESS);
+  context = meta_create_test_context (META_CONTEXT_TEST_TYPE_HEADLESS,
+                                      META_CONTEXT_TEST_FLAG_NO_X11);
   g_assert (meta_context_configure (context, &argc, &argv, NULL));
 
   init_tests ();

src/tests/ref-test-sanity.c

@@ -133,7 +133,8 @@ main (int    argc,
 {
   g_autoptr (MetaContext) context = NULL;
 
-  context = meta_create_test_context (META_CONTEXT_TEST_TYPE_HEADLESS);
+  context = meta_create_test_context (META_CONTEXT_TEST_TYPE_HEADLESS,
+                                      META_CONTEXT_TEST_FLAG_NO_X11);
   g_assert (meta_context_configure (context, &argc, &argv, NULL));
 
   init_ref_test_sanity_tests ();

src/tests/stage-view-tests.c

@@ -1161,7 +1161,8 @@ main (int argc, char *argv[])
 {
   g_autoptr (MetaContext) context = NULL;
 
-  context = meta_create_test_context (META_CONTEXT_TEST_TYPE_NESTED);
+  context = meta_create_test_context (META_CONTEXT_TEST_TYPE_NESTED,
+                                      META_CONTEXT_TEST_FLAG_NO_X11);
   g_assert (meta_context_configure (context, &argc, &argv, NULL));
 
   init_tests ();

src/tests/test-runner.c

@@ -1124,7 +1124,8 @@ main (int argc, char **argv)
   GPtrArray *tests;
   RunTestsInfo info;
 
-  context = meta_create_test_context (META_CONTEXT_TEST_TYPE_NESTED);
+  context = meta_create_test_context (META_CONTEXT_TEST_TYPE_NESTED,
+                                      META_CONTEXT_TEST_FLAG_TEST_CLIENT);
 
   meta_context_add_option_entries (context, options, NULL);
 

src/tests/unit-tests.c

@@ -235,7 +235,8 @@ main (int argc, char *argv[])
 {
   g_autoptr (MetaContext) context = NULL;
 
-  context = meta_create_test_context (META_CONTEXT_TEST_TYPE_NESTED);
+  context = meta_create_test_context (META_CONTEXT_TEST_TYPE_NESTED,
+                                      META_CONTEXT_TEST_FLAG_TEST_CLIENT);
   g_assert (meta_context_configure (context, &argc, &argv, NULL));
 
   init_tests ();