OpenHTF, the open-source hardware testing framework in Python

import openhtf as htf
from openhtf.plugs import plug
from multimeter_plug import MultimeterPlug

@plug(multimeter=MultimeterPlug)
@htf.measures(
    htf.Measurement("voltage")
    .in_range(3.0, 3.5)
    .with_units("V"))
def test_voltage(test, multimeter):
    voltage = multimeter.measure_voltage()
    test.measurements.voltage = voltage

def main():
    test = htf.Test(test_voltage)
    test.execute(lambda: "SN0001") # DUT S/N

if __name__ == "__main__":
    main()

from openhtf.plugs import BasePlug

class MultimeterPlug(BasePlug):
    # Simulate connecting to the multimeter
    def __init__(self):
        self.connected = True

    # Simulate measuring the voltage
    def measure_voltage(self):
        return 3.3

    # Simulate disconnecting from the multimeter
    # Called automatically by OpenHTF at test end
    def tearDown(self):
        self.connected = False