Add test for non-existent property

Author: gilzoide

test/gdscript_tests/lua_files/test_class.lua

@@ -1,6 +1,7 @@
 local TestClass = {}
 
 TestClass.some_signal = signal("arg1", "arg2")
+
 TestClass.empty_array = property { type = Array }
 TestClass.preinitialized_array = Array { 1, 2, 3 }
 

test/gdscript_tests/test_class.gd

@@ -20,6 +20,7 @@ func test_signal() -> bool:
 	var obj = test_class.new()
 	assert(obj.some_signal is Signal, "Object should have signal defined in script")
 	obj.some_signal.connect(_handle_signal)
+	assert(not _signal_handled)
 	obj.send_signal()
 	assert(_signal_handled, "Signal was not handled")
 	return true;
@@ -36,6 +37,12 @@ func test_array_properties() -> bool:
 	return true
 
 
+func test_non_existent_property() -> bool:
+	var obj = test_class.new()
+	assert("some crazy non-existent property name" not in obj)
+	return true;
+
+
 func test_property_getter_function() -> bool:
 	var obj = test_class.new()
 	assert(obj.getter_counter == 1)