diff --git a/unit_tests/engine_test_helper.cpp b/unit_tests/engine_test_helper.cpp
index 25dc8658bd..706bb4fe52 100644
--- a/unit_tests/engine_test_helper.cpp
+++ b/unit_tests/engine_test_helper.cpp
@@ -111,6 +111,14 @@ void EngineTestHelper::clearQueue() {
 	engine.iHead = NULL; // let's drop whatever was scheduled just to start from a clean state
 }
 
+void EngineTestHelper::executeActions() {
+	engine.executor.executeAll(timeNowUs);
+}
+
+void EngineTestHelper::moveTimeForwardUs(int deltaTimeUs) {
+	timeNowUs += deltaTimeUs;
+}
+
 void EngineTestHelper::fireTriggerEvents(int count) {
 	fireTriggerEvents2(count, 5); // 5ms
 }
diff --git a/unit_tests/engine_test_helper.h b/unit_tests/engine_test_helper.h
index 3dd46139fc..a5ade1252b 100644
--- a/unit_tests/engine_test_helper.h
+++ b/unit_tests/engine_test_helper.h
@@ -31,6 +31,9 @@ public:
 	void fireTriggerEvents2(int count, int delayMs);
 	void clearQueue();
 
+	void executeActions();
+	void moveTimeForwardUs(int deltaTimeUs);
+
 	Engine engine;
 	persistent_config_s persistentConfig;
 };
diff --git a/unit_tests/tests/test_trigger_decoder.cpp b/unit_tests/tests/test_trigger_decoder.cpp
index 8b6847be16..58893b33f8 100644
--- a/unit_tests/tests/test_trigger_decoder.cpp
+++ b/unit_tests/tests/test_trigger_decoder.cpp
@@ -1171,8 +1171,8 @@ void testFuelSchedulerBug299smallAndLarge(void) {
 	assertInjectorUpEvent("L05@2", 2, MS2US(18), 1 PASS_ENGINE_PARAMETER_SUFFIX);
 	assertInjectorDownEvent("L05@3", 3, MS2US(20), 1 PASS_ENGINE_PARAMETER_SUFFIX);
 
-	timeNowUs += MS2US(20);
-	engine->executor.executeAll(timeNowUs);
+	eth.moveTimeForwardUs(MS2US(20));
+	eth.executeActions();
 }
 
 void testSparkReverseOrderBug319(void) {