def testOhmUnits(unit_database_posc):
q = ObtainQuantity("ohm/m")
assert q.ConvertScalarValue(1, "ohm/km") == 1000
def testSpringDashpotUnits(unit_database_posc):
"""
Units used to define Spring-Dashpot movements
"""
q = ObtainQuantity("Ns/m")
assert "force per velocity" == q.GetQuantityType()
assert approx(abs(q.ConvertScalarValue(1, "lbf.s/ft") - 14.5939029372),
7) == 0
q = ObtainQuantity("Nm/rad")
assert "moment per angle" == q.GetQuantityType()
assert approx(abs(q.ConvertScalarValue(1, "lbf.ft/dega") - 836.169044926),
7) == 0
q = ObtainQuantity("Nms/rad")
assert "moment per angular velocity" == q.GetQuantityType()
assert (approx(
abs(q.ConvertScalarValue(1, "lbf.ft.s/dega") - 0.017453292519943),
7) == 0)
def testPoscKVmm(unit_database_posc):
"""
V/m to KV/mm (multiply by 1e6)
"""
q = ObtainQuantity("V/m")
assert q.ConvertScalarValue(1, "KV/mm") == 1e6
def testDefaultValue(unit_database_len_pressure) -> None:
"""
Scalar constructor considers the minimum and maximum values
when default_value is not defined
"""
db = unit_database_len_pressure
db.AddCategory(category="my length",
quantity_type="length",
min_value=100.0,
max_value=200.0)
# if the default value is not defined, the scalar should not try to set the initial/first
# value of the new instance to 0.0, but it should assume the minimum allowed value.
# should not raise ValueError
length = Scalar("my length")
assert length.GetValue() == 100.0
length = Scalar(ObtainQuantity("m", "my length"))
assert length.GetValue() == 100.0
length = Scalar(ObtainQuantity("m"))
assert length.GetValue() == 0.0
# invalid default value (< min)
with pytest.raises(AssertionError):
db.AddCategory(
category="my pressure",
quantity_type="pressure",
default_value=50.0,
min_value=100.0,
max_value=200.0,
)
# invalid default value (> max)
with pytest.raises(AssertionError):
db.AddCategory(
category="my pressure",
quantity_type="pressure",
default_value=300.0,
min_value=100.0,
max_value=200.0,
)
# invalid default value (<= min)
with pytest.raises(AssertionError):
db.AddCategory(
category="my pressure",
quantity_type="pressure",
default_value=100.0,
min_value=100.0,
max_value=200.0,
is_min_exclusive=True,
)
# invalid default value (>= min)
with pytest.raises(AssertionError):
db.AddCategory(
category="my pressure",
quantity_type="pressure",
default_value=200.0,
min_value=100.0,
max_value=200.0,
is_max_exclusive=True,
)
db.AddCategory(
category="my pressure",
quantity_type="pressure",
min_value=100.0,
max_value=200.0,
default_value=150.0,
is_min_exclusive=True,
is_max_exclusive=False,
)
pressure = Scalar("my pressure")
assert pressure.GetValue() == 150.0
# default_value not informed. checking if the interval limits are respected
# when is_min_exclusive or is_max_exclusive have been informed, so the default_value
# must be
with pytest.raises(RuntimeError):
db.AddCategory(
category="my pressure 2",
quantity_type="pressure",
min_value=100.0,
max_value=200.0,
is_max_exclusive=True,
)
def testReadOnlyQuantityCopy(unit_database_well_length) -> None:
q0 = ObtainQuantity("m", "well-length")
q1 = q0.Copy()
assert q0 == q1
def testQuantityEq(unit_database_well_length) -> None:
q0 = ObtainQuantity("m", "well-length")
q1 = ObtainQuantity("m", "well-length")
assert q0 == q1
def testOperation() -> None:
unit_database = UnitDatabase.GetSingleton()
unit_database.CheckDefaultUnitDatabase()
q = ObtainQuantity(unit="m", category="length")
SCALAR_OPERATION = [
operator.add, operator.sub, operator.truediv, operator.mul,
operator.mod
]
SCALAR_TYPES = (int, float)
for operation in SCALAR_OPERATION:
for cast_type in SCALAR_TYPES:
# Left
q2 = operation(cast_type(2), q)
assert q2.GetQuantityType() == "length"
assert q2.GetUnit() == "m"
# Right
q2 = operation(q, cast_type(2))
assert q2.GetQuantityType() == "length"
assert q2.GetUnit() == "m"
q2 = abs(q)
assert q2.GetQuantityType() == "length"
assert q2.GetUnit() == "m"
q2 = q + q
assert q2.GetQuantityType() == "length"
assert q2.GetUnit() == "m"
q2 = q - q
assert q2.GetQuantityType() == "length"
assert q2.GetUnit() == "m"
q2 = q * int(2)
assert q2.GetQuantityType() == "length"
assert q2.GetUnit() == "m"
q2 = q * 2.0
assert q2.GetQuantityType() == "length"
assert q2.GetUnit() == "m"
q2 = q * q
assert q2.GetQuantityType() == "(length) ** 2"
assert q2.GetUnit() == "m2"
q2 = q * q * q
assert q2.GetQuantityType() == "(length) ** 3"
assert q2.GetUnit() == "m3"
# Check pow
q2 = q**1
assert q2.GetQuantityType() == "length"
assert q2.GetUnit() == "m"
q2 = q**2
assert q2.GetQuantityType() == "(length) ** 2"
assert q2.GetUnit() == "m2"
q2 = q**3
assert q2.GetQuantityType() == "(length) ** 3"
assert q2.GetUnit() == "m3"
q2 = pow(q, 3)
assert q2.GetQuantityType() == "(length) ** 3"
assert q2.GetUnit() == "m3"
q2 = (q * q) / q
assert q2.GetQuantityType() == "length"
assert q2.GetUnit() == "m"
q2 = (q * q) / ObtainQuantity(unit="d", category="time")
assert q2.GetQuantityType() == "(length) ** 2 / time"
assert q2.GetUnit() == "m2/d"
with pytest.raises(TypeError):
operator.mul(q, "s")