def test_toggle_eload_false(self, mock_pyvisa):
# given
state = False
py_instrument = mock_pyvisa.ResourceManager.return_value.open_resource.return_value
instrument = Bk8600()
py_instrument.reset_mock()
# when
instrument.toggle_eload(state)
# then
py_instrument.write.assert_has_calls([call(Bk8600.INPUT_OFF_CMD)])
def test_constructor(self, mock_pyvisa):
# given
resource_id = "USB0::65535"
resource_manager = mock_pyvisa.ResourceManager.return_value
instrument = resource_manager.open_resource.return_value
# when
Bk8600(resource_id)
# then
instrument.write.assert_called_with(Bk8600.RESET_COMMAND)
instrument.query.assert_called_with(Bk8600.SELF_ID_QUERY)
resource_manager.open_resource.assert_called_with(resource_id)
def test_measure_current(self, mock_pyvisa):
# given
current = 30
py_instrument = mock_pyvisa.ResourceManager.return_value.open_resource.return_value
instrument = Bk8600()
py_instrument.reset_mock()
py_instrument.query.return_value = current
# when
c = instrument.measure_current()
# then
py_instrument.query.assert_called_with(Bk8600.DC_CURRENT_QUERY)
assert c == current
def test_measure_voltage(self, mock_pyvisa):
# given
voltage = 30
py_instrument = mock_pyvisa.ResourceManager.return_value.open_resource.return_value
instrument = Bk8600()
py_instrument.reset_mock()
py_instrument.query.return_value = voltage
# when
v = instrument.measure_voltage()
# then
py_instrument.query.assert_called_with(Bk8600.DC_VOLTAGE_QUERY)
assert v == voltage
def test_set_current(self, mock_pyvisa):
# given
py_instrument = mock_pyvisa.ResourceManager.return_value.open_resource.return_value
current_a = 1
instrument = Bk8600()
py_instrument.reset_mock()
# when
instrument.set_current_level(current_a)
# then
py_instrument.write.assert_has_calls([
call("{} {}".format(Bk8600.CURRENT_LEVEL_COMMAND, current_a)),
call(Bk8600.INPUT_ON_CMD)
])
py_instrument.query.assert_called_with("*OPC?")
import pyvisa
import time
from src.equipments.bk8600 import Bk8600
TIME = 2
#initialize instrument
inst = Bk8600()
# To Set E-Load in Amps
Current = input("Enter E-Load Current")
inst.set_current(Current)
Operation = "OFF"
#initialize instrument
while (Operation == "OFF"):
Operation = input("Enter ON to turn on Output")
if Operation == "ON":
inst._set_input_on()
print("Input On")
time.sleep(10)
while Operation != "End":
Operation = input("Enter:\n" + "M to meausre voltage and current\n" +
"OFF to turn output off\n" + "End to close testing")
if Operation == "M":
try:
while True:
print("current is: %d", inst.measure_current())
print("voltage is: %d", inst.measure_voltage())
time.sleep(2)
except KeyboardInterrupt: