def test_sales_unit_as_display_unit():
sales_unit = SalesUnit(decimals=3)
display_unit = SalesUnitAsDisplayUnit(sales_unit)
assert display_unit.internal_unit == sales_unit
assert display_unit.ratio == 1
assert display_unit.decimals == sales_unit.decimals
assert display_unit.comparison_value == 1
assert display_unit.allow_bare_number is False
assert display_unit.default is False
assert display_unit.pk is None
assert display_unit == display_unit
# Name and symbol should be "lazy" to allow language switch
sales_unit.set_current_language('en')
sales_unit.symbol = "Kg"
sales_unit.name = "Kilogram"
assert display_unit.name == sales_unit.name
assert display_unit.symbol == sales_unit.symbol
assert '{}'.format(display_unit) == sales_unit.name
sales_unit.set_current_language('fi')
sales_unit.name = "kilogramma"
sales_unit.symbol = "kg"
assert display_unit.name == sales_unit.name
assert display_unit.symbol == sales_unit.symbol
assert '{}'.format(display_unit) == sales_unit.name
def test_unit_interface_init_unit_compatibility_check():
su1 = SalesUnit(identifier="SU1", symbol="su1")
su2 = SalesUnit(identifier="SU2", symbol="su2")
du = DisplayUnit(name="DU", symbol="du", internal_unit=su1)
UnitInterface(su1, du) # OK
with pytest.raises(AssertionError) as exc_info:
UnitInterface(su2, du)
assert str(exc_info.value) == ("Incompatible units: <SalesUnit:None-SU2>, <DisplayUnit:None>")
def test_sales_unit_as_display_unit():
sales_unit = SalesUnit(decimals=3)
display_unit = SalesUnitAsDisplayUnit(sales_unit)
assert display_unit.internal_unit == sales_unit
assert display_unit.ratio == 1
assert display_unit.decimals == sales_unit.decimals
assert display_unit.comparison_value == 1
assert display_unit.allow_bare_number is False
assert display_unit.default is False
assert display_unit.pk is None
assert display_unit == display_unit
# Name and symbol should be "lazy" to allow language switch
sales_unit.set_current_language('en')
sales_unit.symbol = "Kg"
sales_unit.name = "Kilogram"
assert display_unit.name == sales_unit.name
assert display_unit.symbol == sales_unit.symbol
assert '{}'.format(display_unit) == sales_unit.name
sales_unit.set_current_language('fi')
sales_unit.name = "kilogramma"
sales_unit.symbol = "kg"
assert display_unit.name == sales_unit.name
assert display_unit.symbol == sales_unit.symbol
assert '{}'.format(display_unit) == sales_unit.name
def test_sales_unit_short_name():
# test the deprecated compatibility property
assert SalesUnit(symbol="kg").short_name == "kg"
assert SalesUnit(short_name="kg").symbol == "kg"
unit = SalesUnit()
unit.short_name = "oz"
assert unit.symbol == "oz"
en_sales_units = SalesUnit.objects.language("en")
unit2 = en_sales_units.create(decimals=1, name="Gram", short_name="g")
assert unit2.name == "Gram"
assert unit2.symbol == "g"
unit3 = en_sales_units.get(pk=unit2.pk)
unit3.set_current_language("en")
assert unit3.name == "Gram"
assert unit3.symbol == "g"
def test_sales_unit_short_name():
# test the deprecated compatibility property
assert SalesUnit(symbol="kg").short_name == "kg"
assert SalesUnit(short_name="kg").symbol == "kg"
unit = SalesUnit()
unit.short_name = "oz"
assert unit.symbol == "oz"
en_sales_units = SalesUnit.objects.language("en")
unit2 = en_sales_units.create(decimals=1, name="Gram", short_name="g")
assert unit2.name == "Gram"
assert unit2.symbol == "g"
unit3 = en_sales_units.get(pk=unit2.pk)
unit3.set_current_language('en')
assert unit3.name == "Gram"
assert unit3.symbol == "g"
def test_unit_interface_init_from_display_unit():
sales_unit = SalesUnit(name="Test", symbol="tst")
display_unit = DisplayUnit(name="Test2", symbol="t2",
internal_unit=sales_unit)
unit = UnitInterface(display_unit=display_unit)
assert unit.display_unit == display_unit
assert unit.internal_unit == sales_unit
def test_sales_unit_decimals():
assert SalesUnit(decimals=0).quantity_step == 1
assert not SalesUnit(decimals=0).allow_fractions
assert SalesUnit(decimals=1).quantity_step == Decimal("0.1")
assert SalesUnit(decimals=1).allow_fractions
assert SalesUnit(decimals=10).quantity_step == Decimal("0.0000000001")
assert SalesUnit(decimals=2).round("1.509") == Decimal("1.51")
assert SalesUnit(decimals=0).round("1.5") == Decimal("2")
def test_unit_interface_display_precision():
sales_unit = SalesUnit(symbol="t")
assert UnitInterface(
display_unit=DisplayUnit(internal_unit=sales_unit, decimals=9
)).display_precision == Decimal('0.000000001')
assert UnitInterface(
display_unit=DisplayUnit(internal_unit=sales_unit, decimals=4
)).display_precision == Decimal('0.0001')
assert UnitInterface(
display_unit=DisplayUnit(internal_unit=sales_unit, decimals=2
)).display_precision == Decimal('0.01')
assert UnitInterface(
display_unit=DisplayUnit(internal_unit=sales_unit,
decimals=0)).display_precision == Decimal('1')
def test_unit_interface_init_from_internal_unit():
sales_unit = SalesUnit(name="Test", symbol="tst")
unit = UnitInterface(sales_unit)
assert unit.internal_unit == sales_unit
assert isinstance(unit.display_unit, SalesUnitAsDisplayUnit)
assert unit.display_unit.internal_unit == sales_unit
def test_sales_unit_as_display_unit_allow_bare_number():
each = SalesUnit(decimals=0, symbol='ea.')
kg = SalesUnit(decimals=3, symbol='kg')
assert SalesUnitAsDisplayUnit(each).allow_bare_number is True
assert SalesUnitAsDisplayUnit(kg).allow_bare_number is False
def get_kilogram_sales_unit(decimals):
return SalesUnit(name="Kilograms", symbol='kg', decimals=decimals)
def test_sales_unit_str():
unit = SalesUnit()
assert str(unit) == ""
unit.identifier = "test"
assert str(unit) == "test"
unit.set_current_language("en")
unit.name = "en"
assert str(unit) == "en"
unit.set_current_language("fi")
unit.name = "fi"
assert str(unit) == "fi"
unit.set_current_language("en")
assert unit.name == "en"
# test fallback
unit.set_current_language("ja")
assert unit.name == "en"
def test_sales_unit_str():
unit = SalesUnit()
assert str(unit) == ""
unit.identifier = "test"
assert str(unit) == "test"
unit.set_current_language("en")
unit.name = "en"
assert str(unit) == "en"
unit.set_current_language("fi")
unit.name = "fi"
assert str(unit) == "fi"
unit.set_current_language("en")
assert unit.name == "en"
# test fallback
unit.set_current_language("ja")
assert unit.name == "en"
