tests: Add unit tests for ToggleQueue and ObjectInstance usage of it

Instead of relying only on (at times unpredictible) JS tests for toggle
queue handling and Objects memory management, add unit tests in which we
manually handle an ObjectInstance and we simulate toggle events on it.

1 files changed, 6 insertions, 0 deletions

diff --git a/gi/toggle.h b/gi/toggle.h
index 17f22c06..141df552 100644
--- a/gi/toggle.h
+++ b/gi/toggle.h
@@ -17,6 +17,11 @@
 #include <utility>  // for pair
 
 class ObjectInstance;
+namespace Gjs {
+namespace Test {
+struct ToggleQueue;
+}
+}
 
 /* Thread-safe queue for enqueueing toggle-up or toggle-down events on GObjects
  * from any thread. For more information, see object.cpp, comments near
@@ -31,6 +36,7 @@ public:
     using Handler = void (*)(ObjectInstance*, Direction);
 
  private:
+    friend Gjs::Test::ToggleQueue;
     struct Item {
         Item() {}
         Item(ObjectInstance* o, Direction d) : object(o), direction(d) {}