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import pytest
import pint.formatting as fmt
@pytest.mark.filterwarnings("ignore::DeprecationWarning:pint*")
@pytest.mark.parametrize(
["format", "default", "flag", "expected"],
(
pytest.param(".02fD", ".3fP", True, (".02f", "D"), id="both-both-separate"),
pytest.param(".02fD", ".3fP", False, (".02f", "D"), id="both-both-combine"),
pytest.param(".02fD", ".3fP", None, (".02f", "D"), id="both-both-default"),
pytest.param("D", ".3fP", True, (".3f", "D"), id="unit-both-separate"),
pytest.param("D", ".3fP", False, ("", "D"), id="unit-both-combine"),
pytest.param("D", ".3fP", None, ("", "D"), id="unit-both-default"),
pytest.param(".02f", ".3fP", True, (".02f", "P"), id="magnitude-both-separate"),
pytest.param(".02f", ".3fP", False, (".02f", ""), id="magnitude-both-combine"),
pytest.param(".02f", ".3fP", None, (".02f", ""), id="magnitude-both-default"),
pytest.param("D", "P", True, ("", "D"), id="unit-unit-separate"),
pytest.param("D", "P", False, ("", "D"), id="unit-unit-combine"),
pytest.param("D", "P", None, ("", "D"), id="unit-unit-default"),
pytest.param(
".02f", ".3f", True, (".02f", ""), id="magnitude-magnitude-separate"
),
pytest.param(
".02f", ".3f", False, (".02f", ""), id="magnitude-magnitude-combine"
),
pytest.param(
".02f", ".3f", None, (".02f", ""), id="magnitude-magnitude-default"
),
pytest.param("D", ".3f", True, (".3f", "D"), id="unit-magnitude-separate"),
pytest.param("D", ".3f", False, ("", "D"), id="unit-magnitude-combine"),
pytest.param("D", ".3f", None, ("", "D"), id="unit-magnitude-default"),
pytest.param(".02f", "P", True, (".02f", "P"), id="magnitude-unit-separate"),
pytest.param(".02f", "P", False, (".02f", ""), id="magnitude-unit-combine"),
pytest.param(".02f", "P", None, (".02f", ""), id="magnitude-unit-default"),
pytest.param("", ".3fP", True, (".3f", "P"), id="none-both-separate"),
pytest.param("", ".3fP", False, (".3f", "P"), id="none-both-combine"),
pytest.param("", ".3fP", None, (".3f", "P"), id="none-both-default"),
pytest.param("", "P", True, ("", "P"), id="none-unit-separate"),
pytest.param("", "P", False, ("", "P"), id="none-unit-combine"),
pytest.param("", "P", None, ("", "P"), id="none-unit-default"),
pytest.param("", ".3f", True, (".3f", ""), id="none-magnitude-separate"),
pytest.param("", ".3f", False, (".3f", ""), id="none-magnitude-combine"),
pytest.param("", ".3f", None, (".3f", ""), id="none-magnitude-default"),
pytest.param("", "", True, ("", ""), id="none-none-separate"),
pytest.param("", "", False, ("", ""), id="none-none-combine"),
pytest.param("", "", None, ("", ""), id="none-none-default"),
),
)
def test_split_format(format, default, flag, expected):
result = fmt.split_format(format, default, flag)
assert result == expected
def test_register_unit_format(func_registry):
@fmt.register_unit_format("custom")
def format_custom(unit, registry, **options):
return "<formatted unit>"
quantity = 1.0 * func_registry.meter
assert f"{quantity:custom}" == "1.0 <formatted unit>"
with pytest.raises(ValueError, match="format 'custom' already exists"):
@fmt.register_unit_format("custom")
def format_custom_redefined(unit, registry, **options):
return "<overwritten>"
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