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feat(series): #1098 arithmetic truediv #1280

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408 changes: 402 additions & 6 deletions pandas-stubs/core/series.pyi
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Empty file added tests/series/__init__.py
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Empty file added tests/series/arithmetic/__init__.py
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Empty file added tests/series/arithmetic/complex/__init__.py
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146 changes: 146 additions & 0 deletions tests/series/arithmetic/complex/test_truediv.py
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import numpy as np
import pandas as pd
from typing_extensions import assert_type

from tests import check

left = pd.Series([1j, 2j, 3j]) # left operand


def test_truediv_py_scalar() -> None:
"""Test pd.Series[complex] / Python native scalars"""
i, f, c = 1, 1.0, 1j

check(assert_type(left / i, "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left / f, "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left / c, "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(i / left, "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(f / left, "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(c / left, "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.truediv(i), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.truediv(f), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.truediv(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.div(i), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.div(f), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.div(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.rtruediv(i), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.rtruediv(f), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.rtruediv(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.rdiv(i), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.rdiv(f), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.rdiv(c), "pd.Series[complex]"), pd.Series, np.complex128)


def test_truediv_py_sequence() -> None:
"""Test pd.Series[complex] / Python native sequence"""
i, f, c = [2, 3, 5], [1.0, 2.0, 3.0], [1j, 1j, 4j]

check(assert_type(left / i, "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left / f, "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left / c, "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(i / left, "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(f / left, "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(c / left, "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.truediv(i), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.truediv(f), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.truediv(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.div(i), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.div(f), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.div(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.rtruediv(i), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.rtruediv(f), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.rtruediv(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.rdiv(i), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.rdiv(f), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.rdiv(c), "pd.Series[complex]"), pd.Series, np.complex128)


def test_truediv_numpy_array() -> None:
"""Test pd.Series[complex] / numpy array"""
i = np.array([2, 3, 5], np.int64)
f = np.array([1.0, 2.0, 3.0], np.float64)
c = np.array([1.1j, 2.2j, 4.1j], np.complex128)

check(assert_type(left / i, "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left / f, "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left / c, "pd.Series[complex]"), pd.Series, np.complex128)

# numpy typing gives ndarray instead of `pd.Series[...]` in reality, which we cannot fix
check(
assert_type( # type: ignore[assert-type]
i / left, "pd.Series[complex]" # pyright: ignore[reportAssertTypeFailure]
),
pd.Series,
np.complex128,
)
check(
assert_type( # type: ignore[assert-type]
f / left, "pd.Series[complex]" # pyright: ignore[reportAssertTypeFailure]
),
pd.Series,
np.complex128,
)
check(
assert_type( # type: ignore[assert-type]
c / left, "pd.Series[complex]" # pyright: ignore[reportAssertTypeFailure]
),
pd.Series,
np.complex128,
)

check(assert_type(left.truediv(i), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.truediv(f), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.truediv(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.div(i), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.div(f), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.div(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.rtruediv(i), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.rtruediv(f), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.rtruediv(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.rdiv(i), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.rdiv(f), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.rdiv(c), "pd.Series[complex]"), pd.Series, np.complex128)


def test_truediv_pd_series() -> None:
"""Test pd.Series[complex] / pandas series"""
i = pd.Series([2, 3, 5])
f = pd.Series([1.0, 2.0, 3.0])
c = pd.Series([1.1j, 2.2j, 4.1j])

check(assert_type(left / i, "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left / f, "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left / c, "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(i / left, "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(f / left, "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(c / left, "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.truediv(i), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.truediv(f), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.truediv(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.div(i), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.div(f), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.div(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.rtruediv(i), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.rtruediv(f), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.rtruediv(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.rdiv(i), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.rdiv(f), "pd.Series[complex]"), pd.Series, np.complex128)
check(assert_type(left.rdiv(c), "pd.Series[complex]"), pd.Series, np.complex128)
Empty file added tests/series/arithmetic/float/__init__.py
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146 changes: 146 additions & 0 deletions tests/series/arithmetic/float/test_truediv.py
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import numpy as np
import pandas as pd
from typing_extensions import assert_type

from tests import check

left = pd.Series([1.0, 2.0, 3.0]) # left operand


def test_truediv_py_scalar() -> None:
"""Test pd.Series[float] / Python native scalars"""
i, f, c = 1, 1.0, 1j

check(assert_type(left / i, "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left / f, "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left / c, "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(i / left, "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(f / left, "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(c / left, "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.truediv(i), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.truediv(f), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.truediv(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.div(i), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.div(f), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.div(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.rtruediv(i), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.rtruediv(f), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.rtruediv(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.rdiv(i), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.rdiv(f), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.rdiv(c), "pd.Series[complex]"), pd.Series, np.complex128)


def test_truediv_py_sequence() -> None:
"""Test pd.Series[float] / Python native sequence"""
i, f, c = [2, 3, 5], [1.0, 2.0, 3.0], [1j, 1j, 4j]

check(assert_type(left / i, "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left / f, "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left / c, "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(i / left, "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(f / left, "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(c / left, "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.truediv(i), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.truediv(f), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.truediv(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.div(i), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.div(f), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.div(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.rtruediv(i), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.rtruediv(f), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.rtruediv(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.rdiv(i), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.rdiv(f), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.rdiv(c), "pd.Series[complex]"), pd.Series, np.complex128)


def test_truediv_numpy_array() -> None:
"""Test pd.Series[float] / numpy array"""
i = np.array([2, 3, 5], np.int64)
f = np.array([1.0, 2.0, 3.0], np.float64)
c = np.array([1.1j, 2.2j, 4.1j], np.complex128)

check(assert_type(left / i, "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left / f, "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left / c, "pd.Series[complex]"), pd.Series, np.complex128)

# numpy typing gives ndarray instead of `pd.Series[...]` in reality, which we cannot fix
check(
assert_type( # type: ignore[assert-type]
i / left, "pd.Series[float]" # pyright: ignore[reportAssertTypeFailure]
),
pd.Series,
np.float64,
)
check(
assert_type( # type: ignore[assert-type]
f / left, "pd.Series[float]" # pyright: ignore[reportAssertTypeFailure]
),
pd.Series,
np.float64,
)
check(
assert_type( # type: ignore[assert-type]
c / left, "pd.Series[complex]" # pyright: ignore[reportAssertTypeFailure]
),
pd.Series,
np.complex128,
)

check(assert_type(left.truediv(i), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.truediv(f), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.truediv(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.div(i), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.div(f), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.div(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.rtruediv(i), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.rtruediv(f), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.rtruediv(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.rdiv(i), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.rdiv(f), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.rdiv(c), "pd.Series[complex]"), pd.Series, np.complex128)


def test_truediv_pd_series() -> None:
"""Test pd.Series[float] / pandas series"""
i = pd.Series([2, 3, 5])
f = pd.Series([1.0, 2.0, 3.0])
c = pd.Series([1.1j, 2.2j, 4.1j])

check(assert_type(left / i, "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left / f, "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left / c, "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(i / left, "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(f / left, "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(c / left, "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.truediv(i), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.truediv(f), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.truediv(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.div(i), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.div(f), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.div(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.rtruediv(i), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.rtruediv(f), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.rtruediv(c), "pd.Series[complex]"), pd.Series, np.complex128)

check(assert_type(left.rdiv(i), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.rdiv(f), "pd.Series[float]"), pd.Series, np.float64)
check(assert_type(left.rdiv(c), "pd.Series[complex]"), pd.Series, np.complex128)
Empty file added tests/series/arithmetic/int/__init__.py
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