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# BSD 3-Clause License; see https://github.com/scikit-hep/awkward/blob/main/LICENSE
from __future__ import annotations
import pytest
import awkward as ak
def test_single_no_termination():
def transform(layout, **kwargs):
pass
with pytest.raises(RuntimeError, match=r"expected to terminate"):
ak.transform(transform, [{"x": 1}], expect_return_value=True)
result = ak.transform(transform, [{"x": 1}], expect_return_value=False)
assert result.to_list() == [{"x": 1}]
result = ak.transform(
transform, [{"x": 1}], expect_return_value=True, return_value="none"
)
assert result is None
def test_single_termination():
def transform(layout, **kwargs):
if layout.is_numpy:
return ak.contents.NumpyArray(layout.data * 2)
result = ak.transform(transform, [{"x": 1}], expect_return_value=True)
assert result.to_list() == [{"x": 2}]
result = ak.transform(transform, [{"x": 1}], expect_return_value=False)
assert result.to_list() == [{"x": 2}]
ak.transform(transform, [{"x": 1}], expect_return_value=True, return_value="none")
assert result.to_list() == [{"x": 2}]
def test_many_no_termination():
def transform(layout, **kwargs):
pass
with pytest.raises(RuntimeError, match=r"expected to terminate"):
ak.transform(transform, [{"x": 1}], [2], expect_return_value=True)
result = ak.transform(transform, [{"x": 1}], [2], expect_return_value=False)
assert result[0].to_list() == [{"x": 1}]
assert result[1].to_list() == [{"x": 2}]
result = ak.transform(
transform, [{"x": 1}], [2], expect_return_value=True, return_value="none"
)
assert result is None
def test_many_termination():
def transform(inputs, **kwargs):
if all(layout.is_numpy for layout in inputs):
return tuple([ak.contents.NumpyArray(layout.data * 2) for layout in inputs])
result = ak.transform(transform, [{"x": 1}], [2], expect_return_value=True)
assert result[0].to_list() == [{"x": 2}]
assert result[1].to_list() == [{"x": 4}]
result = ak.transform(transform, [{"x": 1}], [2], expect_return_value=False)
assert result[0].to_list() == [{"x": 2}]
assert result[1].to_list() == [{"x": 4}]
ak.transform(
transform, [{"x": 1}], [2], expect_return_value=True, return_value="none"
)
assert result[0].to_list() == [{"x": 2}]
assert result[1].to_list() == [{"x": 4}]
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