# tests/test_power_supply.py
"""
Basic functional tests for the PowerSupply
"""

def test_set_and_measure_voltage(power_supply):
    test_voltage = 5.0
    power_supply.set_voltage(test_voltage)
    measured = power_supply.measure_voltage()
    assert abs(measured - test_voltage) < 0.05

def test_output_toggle(power_supply):
    power_supply.enable_output(True)
    # Only works for DummyBackend which keeps state
    if hasattr(power_supply.comm, "state"):
        assert power_supply.comm.state["OUTP"] is True

    power_supply.enable_output(False)
    if hasattr(power_supply.comm, "state"):
        assert power_supply.comm.state["OUTP"] is False