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from pint import Quantity
from superqt import QQuantity
def test_qquantity(qtbot):
w = QQuantity(1, "m")
qtbot.addWidget(w)
assert w.value() == 1 * w.unitRegistry().meter
assert w.magnitude() == 1
assert w.units() == w.unitRegistry().meter
assert w.text() == "1 meter"
w.setUnits("cm")
assert w.value() == 100 * w.unitRegistry().centimeter
assert w.magnitude() == 100
assert w.units() == w.unitRegistry().centimeter
assert w.text() == "100.0 centimeter"
w.setMagnitude(10)
assert w.value() == 10 * w.unitRegistry().centimeter
assert w.magnitude() == 10
assert w.units() == w.unitRegistry().centimeter
assert w.text() == "10 centimeter"
w.setValue(1 * w.unitRegistry().meter)
assert w.value() == 1 * w.unitRegistry().meter
assert w.magnitude() == 1
assert w.units() == w.unitRegistry().meter
assert w.text() == "1 meter"
w.setUnits(None)
assert w.isDimensionless()
assert w.unitsComboBox().currentText() == "-----"
assert w.magnitude() == 1
def test_change_qquantity_value(qtbot):
w = QQuantity()
qtbot.addWidget(w)
assert w.value() == Quantity(0)
w.setValue(Quantity("1 meter"))
assert w.value() == Quantity("1 meter")
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