public void TestOnRequestsRedraw() { //Arrange //This will subscribe our local method to the RequestsRedraw event CurrentDynamoModel.RequestsRedraw += CurrentDynamoModel_RequestsRedraw; //Act //This will execute the OnRequestsRedraw method CurrentDynamoModel.OnRequestsRedraw(this, new ModelEventArgs(null)); //Assert CurrentDynamoModel.RequestsRedraw -= CurrentDynamoModel_RequestsRedraw; //This will validate that the local handler was executed and set the flag in true Assert.IsTrue(requestsRedraw); }