Handlers

Vaurien provides a collections of handlers.

blackout

Just closes the client socket on every call.

delay

Adds a delay before the backend is called.

The delay can happen after or before the backend is called.

Options:

• before: If True adds before the backend is called. Otherwise after (bool, default: True)
• sleep: Delay in seconds (int, default: 1)

dummy

Dummy handler.

Every incoming data is passed to the backend with no alteration, and vice-versa.

error

Reads the packets that have been sent then send random data in the socket.

The inject option can be used to inject data within valid data received from the backend. The Warmup option can be used to deactivate the random data injection for a number of calls. This is useful if you need the communication to settle in some speficic protocols before the ramdom data is injected.

Options:

• inject: Inject errors inside valid data (bool, default: False)
• warmup: Number of calls before erroring out (int, default: 0)

hang

Reads the packets that have been sent then hangs.

Acts like a pdb.set_trace() you’d forgot in your code ;)