Add a test for cursor names

This tests both that all standard cusor yield a cursor, and that
unknown cursor names yield NULL.

testsuite/gdk/Makefile.am

@@ -19,6 +19,7 @@ LDADD = 				\
 
 TEST_PROGS += 				\
 	cairo				\
+	cursor				\
 	display				\
 	encoding			\
 	keysyms				\

testsuite/gdk/cursor.c

@@ -0,0 +1,92 @@
+#include <gdk/gdk.h>
+
+static char *cursor_names[] = {
+  "none",
+  "default",
+  "help",
+  "pointer",
+  "context-menu",
+  "progress",
+  "wait",
+  "cell",
+  "crosshair",
+  "text",
+  "vertical-text",
+  "alias",
+  "copy",
+  "no-drop",
+  "move",
+  "not-allowed",
+  "grab",
+  "grabbing",
+  "all-scroll",
+  "col-resize",
+  "row-resize",
+  "n-resize",
+  "e-resize",
+  "s-resize",
+  "w-resize",
+  "ne-resize",
+  "nw-resize",
+  "sw-resize",
+  "se-resize",
+  "ew-resize",
+  "ns-resize",
+  "nesw-resize",
+  "nwse-resize",
+  "zoom-in",
+  "zoom-out",
+  "dnd-ask",
+};
+
+static void
+test_cursor_existence (gconstpointer name)
+{
+  GdkDisplay *display;
+  GdkCursor *cursor;
+
+  display = gdk_display_get_default ();
+  cursor = gdk_cursor_new_from_name (display, name);
+  g_assert (cursor != NULL);
+  g_object_unref (cursor);
+}
+
+static void
+test_cursor_nonexistence_subprocess (void)
+{
+  GdkDisplay *display;
+  GdkCursor *cursor;
+
+  display = gdk_display_get_default ();
+  cursor = gdk_cursor_new_from_name (display, "non-existing-cursor");
+  g_assert (cursor == NULL);
+}
+
+static void
+test_cursor_nonexistence (void)
+{
+  g_test_trap_subprocess ("/non-existing-cursors/subprocess/non-existing-cursor", 0, 0);
+  g_test_trap_assert_passed ();
+}
+
+int
+main (int argc, char *argv[])
+{
+  guint i;
+  char *test_name;
+
+  g_test_init (&argc, &argv, NULL);
+  gdk_init (NULL, NULL);
+
+  for (i = 0; i < G_N_ELEMENTS (cursor_names); i++)
+    {
+      test_name = g_strdup_printf ("/standard-cursor-names/%s", cursor_names[i]);
+      g_test_add_data_func (test_name, cursor_names[i], test_cursor_existence);
+      g_free (test_name);
+    }
+
+  g_test_add_func ("/non-existing-cursors/subprocess/non-existing-cursor", test_cursor_nonexistence_subprocess);
+  g_test_add_func ("/non-existing-cursors/non-existing-cursor", test_cursor_nonexistence);
+
+  return g_test_run();
+}