Hello, maybe a more robust implementation for testing Workflows would be a good idea or is even in the works; in the meantime, we have the option to trigger them manually.
Just search for ‘Manual’ when adding new elements and you will find it. Additionally, from the executions tab, you can see all the execution attempts details on screen.
And as a bonus, from each Workflow settings, it is possible to choose one that would run in case of an error (they need to have the error trigger on their nodes to appear automatically on the error setting dropdown) 