[gegl-gtk] Tests: Test that the GeglNode is processed when invalidated

[Jon Nordby <jonnor src gnome org>]

commit ed403870596f6d5ff14fe2fd0e6fa2fb210ea3ff
Author: Jon Nordby <jononor gmail com>
Date:   Thu Jul 21 21:37:21 2011 +0200

    Tests: Test that the GeglNode is processed when invalidated

 tests/test-view.c |   49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 49 insertions(+), 0 deletions(-)
---
diff --git a/tests/test-view.c b/tests/test-view.c
index 722af9a..a51aca4 100644
--- a/tests/test-view.c
+++ b/tests/test-view.c
@@ -4,6 +4,12 @@
 #include <gegl-gtk-view.h>
 #include <gegl.h>
 
+void
+test_utils_print_rect (GeglRectangle *rect) {
+
+    g_print ("GeglRectangle: %d,%d %dx%d\n", rect->x, rect->y, rect->width, rect->height);
+}
+
 static gboolean
 test_utils_quit_gtk_main (gpointer data)
 {
@@ -70,6 +76,46 @@ test_sanity (void)
 }
 
 
+static void
+computed_event (GeglNode      *node,
+                GeglRectangle *rect,
+                gpointer       data)
+{
+    gboolean *got_computed = (gboolean *)data;
+    *got_computed = TRUE;
+}
+
+/* Test that the GeglNode is processed when invalidated. */
+static void
+test_processing (void)
+{
+    ViewWidgetTest test;
+    gboolean got_computed_event = FALSE;
+    GeglRectangle invalidated_rect = {0, 0, 128, 128};
+
+    setup_widget_test(&test);
+    /* Setup will invalidate the node, make sure those events are processed. */
+    while (gtk_events_pending ()) {
+        gtk_main_iteration ();
+    }
+    gegl_node_process (test.out);
+
+    g_signal_connect (test.out, "computed",
+                      G_CALLBACK (computed_event),
+                      &got_computed_event);
+
+    g_signal_emit_by_name (test.out, "invalidated", &invalidated_rect, NULL);
+
+    g_timeout_add (300, test_utils_quit_gtk_main, NULL);
+    gtk_main ();
+
+    /* FIXME: test that the computed events span the invalidated area */
+    g_assert (got_computed_event);
+
+    teardown_widget_test(&test);
+}
+
+
 /* TODO:
  * - Test redraw logic
  * - Test redraw with translation
@@ -78,6 +124,8 @@ test_sanity (void)
  * Benchmarks for cases above
  */
 
+/* Note that ideally only a few tests requires setting up a mainloop. */
+
 int
 main (int argc, char **argv) {
 
@@ -89,6 +137,7 @@ main (int argc, char **argv) {
     g_test_init(&argc, &argv, NULL);
 
     g_test_add_func("/widgets/view/sanity", test_sanity);
+    g_test_add_func("/widgets/view/processing", test_processing);
 
     retval = g_test_run();
     gegl_exit();