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Remove unnecessary numpy import (#9798) 

Fix #9726
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Kian Eliasi 2022-03-21 03:31:59 +03:30 committed by GitHub
parent 6a6a32ceca
commit 3297bb24a9
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 20 additions and 17 deletions
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1
AUTHORS
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@ -185,6 +185,7 @@ Katerina Koukiou
Keri Volans
Kevin Cox
Kevin J. Foley
Kian Eliasi
Kian-Meng Ang
Kodi B. Arfer
Kojo Idrissa

1
changelog/9726.bugfix.rst Normal file
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@ -0,0 +1 @@
An unnecessary ``numpy`` import inside :func:`pytest.approx` was removed.

3
src/_pytest/python_api.py
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@ -319,7 +319,6 @@ class ApproxSequenceLike(ApproxBase):
def _repr_compare(self, other_side: Sequence[float]) -> List[str]:
import math
import numpy as np
if len(self.expected) != len(other_side):
return [
@ -340,7 +339,7 @@ class ApproxSequenceLike(ApproxBase):
abs_diff = abs(approx_value.expected - other_value)
max_abs_diff = max(max_abs_diff, abs_diff)
if other_value == 0.0:
max_rel_diff = np.inf
max_rel_diff = math.inf
else:
max_rel_diff = max(max_rel_diff, abs_diff / abs(other_value))
different_ids.append(i)

32
testing/python/approx.py
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@ -92,9 +92,7 @@ SOME_INT = r"[0-9]+\s*"
class TestApprox:
def test_error_messages(self, assert_approx_raises_regex):
np = pytest.importorskip("numpy")
def test_error_messages_native_dtypes(self, assert_approx_raises_regex):
assert_approx_raises_regex(
2.0,
1.0,
@ -135,6 +133,22 @@ class TestApprox:
],
)
# Specific test for comparison with 0.0 (relative diff will be 'inf')
assert_approx_raises_regex(
[0.0],
[1.0],
[
r" comparison failed. Mismatched elements: 1 / 1:",
rf" Max absolute difference: {SOME_FLOAT}",
r" Max relative difference: inf",
r" Index \| Obtained\s+\| Expected ",
rf"\s*0\s*\| {SOME_FLOAT} \| {SOME_FLOAT} ± {SOME_FLOAT}",
],
)
def test_error_messages_numpy_dtypes(self, assert_approx_raises_regex):
np = pytest.importorskip("numpy")
a = np.linspace(0, 100, 20)
b = np.linspace(0, 100, 20)
a[10] += 0.5
@ -175,18 +189,6 @@ class TestApprox:
)
# Specific test for comparison with 0.0 (relative diff will be 'inf')
assert_approx_raises_regex(
[0.0],
[1.0],
[
r" comparison failed. Mismatched elements: 1 / 1:",
rf" Max absolute difference: {SOME_FLOAT}",
r" Max relative difference: inf",
r" Index \| Obtained\s+\| Expected ",
rf"\s*0\s*\| {SOME_FLOAT} \| {SOME_FLOAT} ± {SOME_FLOAT}",
],
)
assert_approx_raises_regex(
np.array([0.0]),
np.array([1.0]),