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from pymeasure.test import expected_protocol
from pymeasure.instruments.tektronix.afg3152c import AFG3152C


def test_shape():
    # Demonstrate message prefix identifying the channel
    # Note how the implementation of the shape property does not show that
    # prefix (it is added in the Channel class)
    with expected_protocol(
        AFG3152C,
        [("source1:function:shape?", "LOR"),
         ("source2:function:shape HAV", None),
         ],
    ) as inst:
        assert inst.ch1.shape == 'lorentz'
        inst.ch2.shape = 'haversine'


def test_beep():
    # A message common to all channels does not have a prefix
    with expected_protocol(
        AFG3152C,
        [("system:beep", None)],
    ) as inst:
        inst.beep()