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Fix pytest badness #356

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Merged
james-d-mitchell merged 3 commits into from
Nov 12, 2025
Merged

Fix pytest badness #356

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9555063
pytest: Fix bad pytest.raises
Joseph-Edwards Nov 12, 2025
db09c95
examples: remove unnecessary suppression
Joseph-Edwards Nov 12, 2025
b6bf389
runner: check copy
Joseph-Edwards Nov 12, 2025
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11 changes: 3 additions & 8 deletions tests/runner.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,6 @@
KnuthBendix, etc.
"""

import contextlib
from datetime import timedelta

from libsemigroups_pybind11 import ReportGuard
Expand Down Expand Up @@ -37,13 +36,9 @@ def check_runner(x, t=timedelta(microseconds=1000)): # pylint: disable=missing-
assert not x.stopped_by_predicate()
assert x.timed_out()

# TODO: Why was This was originally:
# try:
# x = x.copy() # copy
# except: # noqa: E722 pylint: disable=bare-except
# pass
with contextlib.suppress(BaseException):
x = x.copy() # copy
assert x is not x.copy()

x = x.copy()

def func():
global N # pylint: disable=global-statement
Expand Down
34 changes: 33 additions & 1 deletion tests/test_presentation_examples.py
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
from libsemigroups_pybind11 import (
POSITIVE_INFINITY,
LibsemigroupsError,
Presentation,
ReportGuard,
ToddCoxeter,
congruence_kind,
Expand Down Expand Up @@ -254,6 +255,8 @@ def test_rectangular_band_ACOR00():
ReportGuard(False)
with pytest.raises(LibsemigroupsError):
examples.rectangular_band_ACOR00(1, 0)

with pytest.raises(LibsemigroupsError):
examples.rectangular_band_ACOR00(0, 1)

p = examples.rectangular_band_ACOR00(4, 5)
Expand All @@ -269,6 +272,8 @@ def test_stellar_monoid_GH19():
ReportGuard(False)
with pytest.raises(LibsemigroupsError):
examples.stellar_monoid_GH19(0)

with pytest.raises(LibsemigroupsError):
examples.stellar_monoid_GH19(1)

# TODO(1) adapt for new Sims API
Expand All @@ -282,6 +287,8 @@ def test_chinese_monoid_CEKNH01():
ReportGuard(False)
with pytest.raises(LibsemigroupsError):
examples.chinese_monoid_CEKNH01(0)

with pytest.raises(LibsemigroupsError):
examples.chinese_monoid_CEKNH01(1)

# TODO(1) adapt for new Sims API
Expand All @@ -296,6 +303,8 @@ def test_monogenic_semigroup():
ReportGuard(False)
with pytest.raises(LibsemigroupsError):
examples.monogenic_semigroup(4, 0)

with pytest.raises(LibsemigroupsError):
examples.monogenic_semigroup(0, 0)

p = examples.monogenic_semigroup(5, 9)
Expand All @@ -307,7 +316,8 @@ def test_plactic_monoid_Knu70():
ReportGuard(False)
with pytest.raises(LibsemigroupsError):
examples.plactic_monoid_Knu70(0)
examples.plactic_monoid_Knu70(1)

assert examples.plactic_monoid_Knu70(1) == Presentation([0])

# TODO(1) adapt for new Sims API
# p = examples.plactic_monoid_Knu70(4)
Expand All @@ -321,6 +331,8 @@ def test_stylic_monoid_AR22():
ReportGuard(False)
with pytest.raises(LibsemigroupsError):
examples.stylic_monoid_AR22(0)

with pytest.raises(LibsemigroupsError):
examples.stylic_monoid_AR22(1)

# TODO(1) adapt for new Sims API
Expand All @@ -335,7 +347,11 @@ def test_fibonacci_semigroup_CRRT94():
ReportGuard(False)
with pytest.raises(LibsemigroupsError):
examples.fibonacci_semigroup_CRRT94(0, 1)

with pytest.raises(LibsemigroupsError):
examples.fibonacci_semigroup_CRRT94(1, 0)

with pytest.raises(LibsemigroupsError):
examples.fibonacci_semigroup_CRRT94(0, 0)

p = examples.fibonacci_semigroup_CRRT94(2, 5)
Expand All @@ -347,7 +363,11 @@ def test_temperley_lieb_monoid_Eas21():
ReportGuard(False)
with pytest.raises(LibsemigroupsError):
examples.temperley_lieb_monoid_Eas21(0)

with pytest.raises(LibsemigroupsError):
examples.temperley_lieb_monoid_Eas21(1)

with pytest.raises(LibsemigroupsError):
examples.temperley_lieb_monoid_Eas21(2)

p = examples.temperley_lieb_monoid_Eas21(8)
Expand All @@ -359,7 +379,11 @@ def test_singular_brauer_monoid_MM07():
ReportGuard(False)
with pytest.raises(LibsemigroupsError):
examples.singular_brauer_monoid_MM07(0)

with pytest.raises(LibsemigroupsError):
examples.singular_brauer_monoid_MM07(1)

with pytest.raises(LibsemigroupsError):
examples.singular_brauer_monoid_MM07(2)

p = examples.singular_brauer_monoid(6)
Expand All @@ -371,7 +395,11 @@ def test_orientation_preserving_monoid_AR00():
ReportGuard(False)
with pytest.raises(LibsemigroupsError):
examples.orientation_preserving_monoid_AR00(0)

with pytest.raises(LibsemigroupsError):
examples.orientation_preserving_monoid_AR00(1)

with pytest.raises(LibsemigroupsError):
examples.orientation_preserving_monoid_AR00(2)

p = examples.orientation_preserving_monoid_AR00(6)
Expand All @@ -383,7 +411,11 @@ def test_orientation_preserving_reversing_monoid_AR00():
ReportGuard(False)
with pytest.raises(LibsemigroupsError):
examples.orientation_preserving_reversing_monoid_AR00(0)

with pytest.raises(LibsemigroupsError):
examples.orientation_preserving_reversing_monoid_AR00(1)

with pytest.raises(LibsemigroupsError):
examples.orientation_preserving_reversing_monoid_AR00(2)

p = examples.orientation_preserving_reversing_monoid_AR00(5)
Expand Down