JezK
Edit File: test_conversion_utils.py
""" Tests for numpy/core/src/multiarray/conversion_utils.c """ import re import sys import pytest import numpy as np import numpy.core._multiarray_tests as mt from numpy.testing import assert_warns, IS_PYPY class StringConverterTestCase: allow_bytes = True case_insensitive = True exact_match = False warn = True def _check_value_error(self, val): pattern = r'\(got {}\)'.format(re.escape(repr(val))) with pytest.raises(ValueError, match=pattern) as exc: self.conv(val) def _check_conv_assert_warn(self, val, expected): if self.warn: with assert_warns(DeprecationWarning) as exc: assert self.conv(val) == expected else: assert self.conv(val) == expected def _check(self, val, expected): """Takes valid non-deprecated inputs for converters, runs converters on inputs, checks correctness of outputs, warnings and errors""" assert self.conv(val) == expected if self.allow_bytes: assert self.conv(val.encode('ascii')) == expected else: with pytest.raises(TypeError): self.conv(val.encode('ascii')) if len(val) != 1: if self.exact_match: self._check_value_error(val[:1]) self._check_value_error(val + '\0') else: self._check_conv_assert_warn(val[:1], expected) if self.case_insensitive: if val != val.lower(): self._check_conv_assert_warn(val.lower(), expected) if val != val.upper(): self._check_conv_assert_warn(val.upper(), expected) else: if val != val.lower(): self._check_value_error(val.lower()) if val != val.upper(): self._check_value_error(val.upper()) def test_wrong_type(self): # common cases which apply to all the below with pytest.raises(TypeError): self.conv({}) with pytest.raises(TypeError): self.conv([]) def test_wrong_value(self): # nonsense strings self._check_value_error('') self._check_value_error('\N{greek small letter pi}') if self.allow_bytes: self._check_value_error(b'') # bytes which can't be converted to strings via utf8 self._check_value_error(b"\xFF") if self.exact_match: self._check_value_error("there's no way this is supported") class TestByteorderConverter(StringConverterTestCase): """ Tests of PyArray_ByteorderConverter """ conv = mt.run_byteorder_converter warn = False def test_valid(self): for s in ['big', '>']: self._check(s, 'NPY_BIG') for s in ['little', '<']: self._check(s, 'NPY_LITTLE') for s in ['native', '=']: self._check(s, 'NPY_NATIVE') for s in ['ignore', '|']: self._check(s, 'NPY_IGNORE') for s in ['swap']: self._check(s, 'NPY_SWAP') class TestSortkindConverter(StringConverterTestCase): """ Tests of PyArray_SortkindConverter """ conv = mt.run_sortkind_converter warn = False def test_valid(self): self._check('quicksort', 'NPY_QUICKSORT') self._check('heapsort', 'NPY_HEAPSORT') self._check('mergesort', 'NPY_STABLESORT') # alias self._check('stable', 'NPY_STABLESORT') class TestSelectkindConverter(StringConverterTestCase): """ Tests of PyArray_SelectkindConverter """ conv = mt.run_selectkind_converter case_insensitive = False exact_match = True def test_valid(self): self._check('introselect', 'NPY_INTROSELECT') class TestSearchsideConverter(StringConverterTestCase): """ Tests of PyArray_SearchsideConverter """ conv = mt.run_searchside_converter def test_valid(self): self._check('left', 'NPY_SEARCHLEFT') self._check('right', 'NPY_SEARCHRIGHT') class TestOrderConverter(StringConverterTestCase): """ Tests of PyArray_OrderConverter """ conv = mt.run_order_converter warn = False def test_valid(self): self._check('c', 'NPY_CORDER') self._check('f', 'NPY_FORTRANORDER') self._check('a', 'NPY_ANYORDER') self._check('k', 'NPY_KEEPORDER') def test_flatten_invalid_order(self): # invalid after gh-14596 with pytest.raises(ValueError): self.conv('Z') for order in [False, True, 0, 8]: with pytest.raises(TypeError): self.conv(order) class TestClipmodeConverter(StringConverterTestCase): """ Tests of PyArray_ClipmodeConverter """ conv = mt.run_clipmode_converter def test_valid(self): self._check('clip', 'NPY_CLIP') self._check('wrap', 'NPY_WRAP') self._check('raise', 'NPY_RAISE') # integer values allowed here assert self.conv(np.CLIP) == 'NPY_CLIP' assert self.conv(np.WRAP) == 'NPY_WRAP' assert self.conv(np.RAISE) == 'NPY_RAISE' class TestCastingConverter(StringConverterTestCase): """ Tests of PyArray_CastingConverter """ conv = mt.run_casting_converter case_insensitive = False exact_match = True def test_valid(self): self._check("no", "NPY_NO_CASTING") self._check("equiv", "NPY_EQUIV_CASTING") self._check("safe", "NPY_SAFE_CASTING") self._check("same_kind", "NPY_SAME_KIND_CASTING") self._check("unsafe", "NPY_UNSAFE_CASTING") class TestIntpConverter: """ Tests of PyArray_IntpConverter """ conv = mt.run_intp_converter def test_basic(self): assert self.conv(1) == (1,) assert self.conv((1, 2)) == (1, 2) assert self.conv([1, 2]) == (1, 2) assert self.conv(()) == () def test_none(self): # once the warning expires, this will raise TypeError with pytest.warns(DeprecationWarning): assert self.conv(None) == () @pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8), reason="PyPy bug in error formatting") def test_float(self): with pytest.raises(TypeError): self.conv(1.0) with pytest.raises(TypeError): self.conv([1, 1.0]) def test_too_large(self): with pytest.raises(ValueError): self.conv(2**64) def test_too_many_dims(self): assert self.conv([1]*32) == (1,)*32 with pytest.raises(ValueError): self.conv([1]*33)