geolocation - GPS emulator for .NET tracking application -

I am currently working on a net application for which the tracking location of our position is necessary. I use an external GPS device that connects me as a location tracker through my disappearance COM port. My device is working, but I could not find a way to fake GPS signals. I do not know whether there is a GPS emulator capable of feeding GPS signals through a COM port

If anybody has experience in this area, please give me some guidance. I would greatly appreciate thank you

Here's a link to what you are trying to do, how to create test cases to get it

This does not do on the COM port, but the REST API Is based on ..