Update conftest.py

Duplicate code from pint/pint/testsuite/conftest.py.  Ruff and Black conspired to delete simple imports of relevant fixture definitions.

Signed-off-by: Michael Tiemann <72577720+MichaelTiemannOSC@users.noreply.github.com>

pint_pandas/testsuite/conftest.py

@@ -1 +1,63 @@
 # pytest fixtures
+
+import pathlib
+
+import pytest
+
+import pint
+
+
+_TINY = """
+yocto- = 1e-24 = y-
+zepto- = 1e-21 = z-
+atto- = 1e-18 = a-
+femto- = 1e-15 = f-
+pico- = 1e-12 = p-
+nano- = 1e-9 = n-
+micro- = 1e-6 = µ- = μ- = u-
+milli- = 1e-3 = m-
+centi- = 1e-2 = c-
+deci- = 1e-1 = d-
+deca- = 1e+1 = da- = deka-
+hecto- = 1e2 = h-
+kilo- = 1e3 = k-
+mega- = 1e6 = M-
+giga- = 1e9 = G-
+tera- = 1e12 = T-
+peta- = 1e15 = P-
+exa- = 1e18 = E-
+zetta- = 1e21 = Z-
+yotta- = 1e24 = Y-
+
+meter = [length] = m = metre
+second = [time] = s = sec
+
+angstrom = 1e-10 * meter = Å = ångström = Å
+minute = 60 * second = min
+"""
+
+
+@pytest.fixture(scope="session")
+def tmppath_factory(tmpdir_factory) -> pathlib.Path:
+ tmp = tmpdir_factory.mktemp("pint")
+ return pathlib.Path(tmp)
+
+
+@pytest.fixture(scope="session")
+def tiny_definition_file(tmppath_factory: pathlib.Path) -> pathlib.Path:
+ folder = tmppath_factory / "definitions"
+ folder.mkdir(exist_ok=True, parents=True)
+ path = folder / "tiny.txt"
+ if not path.exists():
+ path.write_text(_TINY, encoding="utf-8")
+ return path
+
+
+@pytest.fixture
+def registry_empty():
+ return pint.UnitRegistry(None)
+
+
+@pytest.fixture
+def registry_tiny(tiny_definition_file: pathlib.Path):
+ return pint.UnitRegistry(tiny_definition_file)