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import numpy as np
from xarray import DataArray, Dataset, Variable
def test_variable_typed_ops() -> None:
"""Tests for type checking of typed_ops on Variable"""
var = Variable(dims=["t"], data=[1, 2, 3])
def _test(var: Variable) -> None:
# mypy checks the input type
assert isinstance(var, Variable)
_int: int = 1
_list = [1, 2, 3]
_ndarray = np.array([1, 2, 3])
# __add__ as an example of binary ops
_test(var + _int)
_test(var + _list)
_test(var + _ndarray)
_test(var + var)
# __radd__ as an example of reflexive binary ops
_test(_int + var)
_test(_list + var)
_test(_ndarray + var) # type: ignore[arg-type] # numpy problem
# __eq__ as an example of cmp ops
_test(var == _int)
_test(var == _list)
_test(var == _ndarray)
_test(_int == var) # type: ignore[arg-type] # typeshed problem
_test(_list == var) # type: ignore[arg-type] # typeshed problem
_test(_ndarray == var)
# __lt__ as another example of cmp ops
_test(var < _int)
_test(var < _list)
_test(var < _ndarray)
_test(_int > var)
_test(_list > var)
_test(_ndarray > var) # type: ignore[arg-type] # numpy problem
# __iadd__ as an example of inplace binary ops
var += _int
var += _list
var += _ndarray
# __neg__ as an example of unary ops
_test(-var)
def test_dataarray_typed_ops() -> None:
"""Tests for type checking of typed_ops on DataArray"""
da = DataArray([1, 2, 3], dims=["t"])
def _test(da: DataArray) -> None:
# mypy checks the input type
assert isinstance(da, DataArray)
_int: int = 1
_list = [1, 2, 3]
_ndarray = np.array([1, 2, 3])
_var = Variable(dims=["t"], data=[1, 2, 3])
# __add__ as an example of binary ops
_test(da + _int)
_test(da + _list)
_test(da + _ndarray)
_test(da + _var)
_test(da + da)
# __radd__ as an example of reflexive binary ops
_test(_int + da)
_test(_list + da)
_test(_ndarray + da) # type: ignore[arg-type] # numpy problem
_test(_var + da)
# __eq__ as an example of cmp ops
_test(da == _int)
_test(da == _list)
_test(da == _ndarray)
_test(da == _var)
_test(_int == da) # type: ignore[arg-type] # typeshed problem
_test(_list == da) # type: ignore[arg-type] # typeshed problem
_test(_ndarray == da)
_test(_var == da)
# __lt__ as another example of cmp ops
_test(da < _int)
_test(da < _list)
_test(da < _ndarray)
_test(da < _var)
_test(_int > da)
_test(_list > da)
_test(_ndarray > da) # type: ignore[arg-type] # numpy problem
_test(_var > da)
# __iadd__ as an example of inplace binary ops
da += _int
da += _list
da += _ndarray
da += _var
# __neg__ as an example of unary ops
_test(-da)
def test_dataset_typed_ops() -> None:
"""Tests for type checking of typed_ops on Dataset"""
ds = Dataset({"a": ("t", [1, 2, 3])})
def _test(ds: Dataset) -> None:
# mypy checks the input type
assert isinstance(ds, Dataset)
_int: int = 1
_list = [1, 2, 3]
_ndarray = np.array([1, 2, 3])
_var = Variable(dims=["t"], data=[1, 2, 3])
_da = DataArray([1, 2, 3], dims=["t"])
# __add__ as an example of binary ops
_test(ds + _int)
_test(ds + _list)
_test(ds + _ndarray)
_test(ds + _var)
_test(ds + _da)
_test(ds + ds)
# __radd__ as an example of reflexive binary ops
_test(_int + ds)
_test(_list + ds)
_test(_ndarray + ds)
_test(_var + ds)
_test(_da + ds)
# __eq__ as an example of cmp ops
_test(ds == _int)
_test(ds == _list)
_test(ds == _ndarray)
_test(ds == _var)
_test(ds == _da)
_test(_int == ds) # type: ignore[arg-type] # typeshed problem
_test(_list == ds) # type: ignore[arg-type] # typeshed problem
_test(_ndarray == ds)
_test(_var == ds)
_test(_da == ds)
# __lt__ as another example of cmp ops
_test(ds < _int)
_test(ds < _list)
_test(ds < _ndarray)
_test(ds < _var)
_test(ds < _da)
_test(_int > ds)
_test(_list > ds)
_test(_ndarray > ds) # type: ignore[arg-type] # numpy problem
_test(_var > ds)
_test(_da > ds)
# __iadd__ as an example of inplace binary ops
ds += _int
ds += _list
ds += _ndarray
ds += _var
ds += _da
# __neg__ as an example of unary ops
_test(-ds)
def test_dataarray_groupy_typed_ops() -> None:
"""Tests for type checking of typed_ops on DataArrayGroupBy"""
da = DataArray([1, 2, 3], coords={"x": ("t", [1, 2, 2])}, dims=["t"])
grp = da.groupby("x")
def _testda(da: DataArray) -> None:
# mypy checks the input type
assert isinstance(da, DataArray)
def _testds(ds: Dataset) -> None:
# mypy checks the input type
assert isinstance(ds, Dataset)
_da = DataArray([5, 6], coords={"x": [1, 2]}, dims="x")
_ds = _da.to_dataset(name="a")
# __add__ as an example of binary ops
_testda(grp + _da)
_testds(grp + _ds)
# __radd__ as an example of reflexive binary ops
_testda(_da + grp)
_testds(_ds + grp)
# __eq__ as an example of cmp ops
_testda(grp == _da)
_testda(_da == grp)
_testds(grp == _ds)
_testds(_ds == grp)
# __lt__ as another example of cmp ops
_testda(grp < _da)
_testda(_da > grp)
_testds(grp < _ds)
_testds(_ds > grp)
def test_dataset_groupy_typed_ops() -> None:
"""Tests for type checking of typed_ops on DatasetGroupBy"""
ds = Dataset({"a": ("t", [1, 2, 3])}, coords={"x": ("t", [1, 2, 2])})
grp = ds.groupby("x")
def _test(ds: Dataset) -> None:
# mypy checks the input type
assert isinstance(ds, Dataset)
_da = DataArray([5, 6], coords={"x": [1, 2]}, dims="x")
_ds = _da.to_dataset(name="a")
# __add__ as an example of binary ops
_test(grp + _da)
_test(grp + _ds)
# __radd__ as an example of reflexive binary ops
_test(_da + grp)
_test(_ds + grp)
# __eq__ as an example of cmp ops
_test(grp == _da)
_test(_da == grp)
_test(grp == _ds)
_test(_ds == grp)
# __lt__ as another example of cmp ops
_test(grp < _da)
_test(_da > grp)
_test(grp < _ds)
_test(_ds > grp)
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