conform: Add the beginnings of a ClutterScript test suite

ClutterScript is a very complicated piece of machinery, with a
parser that has custom variations on top of the basic JSON
format; it could also be extended in the future, so if we don't
want to introduce regressions or break existing ClutterScript
definitions, we'd better have a conformance test suite.

tests/conform/test-script-parser.c

@@ -0,0 +1,33 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include <clutter/clutter.h>
+
+#include "test-conform-common.h"
+
+void
+test_script_single (TestConformSimpleFixture *fixture,
+                    gconstpointer dummy)
+{
+  ClutterScript *script = clutter_script_new ();
+  GObject *actor = NULL;
+  GError *error = NULL;
+  ClutterActor *rect;
+  gchar *test_file;
+
+  test_file = clutter_test_get_data_file ("test-script-single.json");
+  clutter_script_load_from_file (script, test_file, &error);
+  g_assert (error == NULL);
+
+  actor = clutter_script_get_object (script, "test");
+  g_assert (CLUTTER_IS_RECTANGLE (actor));
+
+  rect = CLUTTER_ACTOR (actor);
+  g_assert_cmpfloat (clutter_actor_get_width (rect), ==, 50.0);
+  g_assert_cmpfloat (clutter_actor_get_y (rect), ==, 100.0);
+
+  g_object_unref (script);
+
+  clutter_actor_destroy (rect);
+  g_free (test_file);
+}