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diff --git a/.venv/lib/python3.12/site-packages/numpy/core/tests/test_defchararray.py b/.venv/lib/python3.12/site-packages/numpy/core/tests/test_defchararray.py
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+++ b/.venv/lib/python3.12/site-packages/numpy/core/tests/test_defchararray.py
@@ -0,0 +1,686 @@
+import pytest
+
+import numpy as np
+from numpy.core.multiarray import _vec_string
+from numpy.testing import (
+ assert_, assert_equal, assert_array_equal, assert_raises,
+ assert_raises_regex
+ )
+
+kw_unicode_true = {'unicode': True} # make 2to3 work properly
+kw_unicode_false = {'unicode': False}
+
+class TestBasic:
+ def test_from_object_array(self):
+ A = np.array([['abc', 2],
+ ['long ', '0123456789']], dtype='O')
+ B = np.char.array(A)
+ assert_equal(B.dtype.itemsize, 10)
+ assert_array_equal(B, [[b'abc', b'2'],
+ [b'long', b'0123456789']])
+
+ def test_from_object_array_unicode(self):
+ A = np.array([['abc', 'Sigma \u03a3'],
+ ['long ', '0123456789']], dtype='O')
+ assert_raises(ValueError, np.char.array, (A,))
+ B = np.char.array(A, **kw_unicode_true)
+ assert_equal(B.dtype.itemsize, 10 * np.array('a', 'U').dtype.itemsize)
+ assert_array_equal(B, [['abc', 'Sigma \u03a3'],
+ ['long', '0123456789']])
+
+ def test_from_string_array(self):
+ A = np.array([[b'abc', b'foo'],
+ [b'long ', b'0123456789']])
+ assert_equal(A.dtype.type, np.bytes_)
+ B = np.char.array(A)
+ assert_array_equal(B, A)
+ assert_equal(B.dtype, A.dtype)
+ assert_equal(B.shape, A.shape)
+ B[0, 0] = 'changed'
+ assert_(B[0, 0] != A[0, 0])
+ C = np.char.asarray(A)
+ assert_array_equal(C, A)
+ assert_equal(C.dtype, A.dtype)
+ C[0, 0] = 'changed again'
+ assert_(C[0, 0] != B[0, 0])
+ assert_(C[0, 0] == A[0, 0])
+
+ def test_from_unicode_array(self):
+ A = np.array([['abc', 'Sigma \u03a3'],
+ ['long ', '0123456789']])
+ assert_equal(A.dtype.type, np.str_)
+ B = np.char.array(A)
+ assert_array_equal(B, A)
+ assert_equal(B.dtype, A.dtype)
+ assert_equal(B.shape, A.shape)
+ B = np.char.array(A, **kw_unicode_true)
+ assert_array_equal(B, A)
+ assert_equal(B.dtype, A.dtype)
+ assert_equal(B.shape, A.shape)
+
+ def fail():
+ np.char.array(A, **kw_unicode_false)
+
+ assert_raises(UnicodeEncodeError, fail)
+
+ def test_unicode_upconvert(self):
+ A = np.char.array(['abc'])
+ B = np.char.array(['\u03a3'])
+ assert_(issubclass((A + B).dtype.type, np.str_))
+
+ def test_from_string(self):
+ A = np.char.array(b'abc')
+ assert_equal(len(A), 1)
+ assert_equal(len(A[0]), 3)
+ assert_(issubclass(A.dtype.type, np.bytes_))
+
+ def test_from_unicode(self):
+ A = np.char.array('\u03a3')
+ assert_equal(len(A), 1)
+ assert_equal(len(A[0]), 1)
+ assert_equal(A.itemsize, 4)
+ assert_(issubclass(A.dtype.type, np.str_))
+
+class TestVecString:
+ def test_non_existent_method(self):
+
+ def fail():
+ _vec_string('a', np.bytes_, 'bogus')
+
+ assert_raises(AttributeError, fail)
+
+ def test_non_string_array(self):
+
+ def fail():
+ _vec_string(1, np.bytes_, 'strip')
+
+ assert_raises(TypeError, fail)
+
+ def test_invalid_args_tuple(self):
+
+ def fail():
+ _vec_string(['a'], np.bytes_, 'strip', 1)
+
+ assert_raises(TypeError, fail)
+
+ def test_invalid_type_descr(self):
+
+ def fail():
+ _vec_string(['a'], 'BOGUS', 'strip')
+
+ assert_raises(TypeError, fail)
+
+ def test_invalid_function_args(self):
+
+ def fail():
+ _vec_string(['a'], np.bytes_, 'strip', (1,))
+
+ assert_raises(TypeError, fail)
+
+ def test_invalid_result_type(self):
+
+ def fail():
+ _vec_string(['a'], np.int_, 'strip')
+
+ assert_raises(TypeError, fail)
+
+ def test_broadcast_error(self):
+
+ def fail():
+ _vec_string([['abc', 'def']], np.int_, 'find', (['a', 'd', 'j'],))
+
+ assert_raises(ValueError, fail)
+
+
+class TestWhitespace:
+ def setup_method(self):
+ self.A = np.array([['abc ', '123 '],
+ ['789 ', 'xyz ']]).view(np.chararray)
+ self.B = np.array([['abc', '123'],
+ ['789', 'xyz']]).view(np.chararray)
+
+ def test1(self):
+ assert_(np.all(self.A == self.B))
+ assert_(np.all(self.A >= self.B))
+ assert_(np.all(self.A <= self.B))
+ assert_(not np.any(self.A > self.B))
+ assert_(not np.any(self.A < self.B))
+ assert_(not np.any(self.A != self.B))
+
+class TestChar:
+ def setup_method(self):
+ self.A = np.array('abc1', dtype='c').view(np.chararray)
+
+ def test_it(self):
+ assert_equal(self.A.shape, (4,))
+ assert_equal(self.A.upper()[:2].tobytes(), b'AB')
+
+class TestComparisons:
+ def setup_method(self):
+ self.A = np.array([['abc', '123'],
+ ['789', 'xyz']]).view(np.chararray)
+ self.B = np.array([['efg', '123 '],
+ ['051', 'tuv']]).view(np.chararray)
+
+ def test_not_equal(self):
+ assert_array_equal((self.A != self.B), [[True, False], [True, True]])
+
+ def test_equal(self):
+ assert_array_equal((self.A == self.B), [[False, True], [False, False]])
+
+ def test_greater_equal(self):
+ assert_array_equal((self.A >= self.B), [[False, True], [True, True]])
+
+ def test_less_equal(self):
+ assert_array_equal((self.A <= self.B), [[True, True], [False, False]])
+
+ def test_greater(self):
+ assert_array_equal((self.A > self.B), [[False, False], [True, True]])
+
+ def test_less(self):
+ assert_array_equal((self.A < self.B), [[True, False], [False, False]])
+
+ def test_type(self):
+ out1 = np.char.equal(self.A, self.B)
+ out2 = np.char.equal('a', 'a')
+ assert_(isinstance(out1, np.ndarray))
+ assert_(isinstance(out2, np.ndarray))
+
+class TestComparisonsMixed1(TestComparisons):
+ """Ticket #1276"""
+
+ def setup_method(self):
+ TestComparisons.setup_method(self)
+ self.B = np.array([['efg', '123 '],
+ ['051', 'tuv']], np.str_).view(np.chararray)
+
+class TestComparisonsMixed2(TestComparisons):
+ """Ticket #1276"""
+
+ def setup_method(self):
+ TestComparisons.setup_method(self)
+ self.A = np.array([['abc', '123'],
+ ['789', 'xyz']], np.str_).view(np.chararray)
+
+class TestInformation:
+ def setup_method(self):
+ self.A = np.array([[' abc ', ''],
+ ['12345', 'MixedCase'],
+ ['123 \t 345 \0 ', 'UPPER']]).view(np.chararray)
+ self.B = np.array([[' \u03a3 ', ''],
+ ['12345', 'MixedCase'],
+ ['123 \t 345 \0 ', 'UPPER']]).view(np.chararray)
+
+ def test_len(self):
+ assert_(issubclass(np.char.str_len(self.A).dtype.type, np.integer))
+ assert_array_equal(np.char.str_len(self.A), [[5, 0], [5, 9], [12, 5]])
+ assert_array_equal(np.char.str_len(self.B), [[3, 0], [5, 9], [12, 5]])
+
+ def test_count(self):
+ assert_(issubclass(self.A.count('').dtype.type, np.integer))
+ assert_array_equal(self.A.count('a'), [[1, 0], [0, 1], [0, 0]])
+ assert_array_equal(self.A.count('123'), [[0, 0], [1, 0], [1, 0]])
+ # Python doesn't seem to like counting NULL characters
+ # assert_array_equal(self.A.count('\0'), [[0, 0], [0, 0], [1, 0]])
+ assert_array_equal(self.A.count('a', 0, 2), [[1, 0], [0, 0], [0, 0]])
+ assert_array_equal(self.B.count('a'), [[0, 0], [0, 1], [0, 0]])
+ assert_array_equal(self.B.count('123'), [[0, 0], [1, 0], [1, 0]])
+ # assert_array_equal(self.B.count('\0'), [[0, 0], [0, 0], [1, 0]])
+
+ def test_endswith(self):
+ assert_(issubclass(self.A.endswith('').dtype.type, np.bool_))
+ assert_array_equal(self.A.endswith(' '), [[1, 0], [0, 0], [1, 0]])
+ assert_array_equal(self.A.endswith('3', 0, 3), [[0, 0], [1, 0], [1, 0]])
+
+ def fail():
+ self.A.endswith('3', 'fdjk')
+
+ assert_raises(TypeError, fail)
+
+ def test_find(self):
+ assert_(issubclass(self.A.find('a').dtype.type, np.integer))
+ assert_array_equal(self.A.find('a'), [[1, -1], [-1, 6], [-1, -1]])
+ assert_array_equal(self.A.find('3'), [[-1, -1], [2, -1], [2, -1]])
+ assert_array_equal(self.A.find('a', 0, 2), [[1, -1], [-1, -1], [-1, -1]])
+ assert_array_equal(self.A.find(['1', 'P']), [[-1, -1], [0, -1], [0, 1]])
+
+ def test_index(self):
+
+ def fail():
+ self.A.index('a')
+
+ assert_raises(ValueError, fail)
+ assert_(np.char.index('abcba', 'b') == 1)
+ assert_(issubclass(np.char.index('abcba', 'b').dtype.type, np.integer))
+
+ def test_isalnum(self):
+ assert_(issubclass(self.A.isalnum().dtype.type, np.bool_))
+ assert_array_equal(self.A.isalnum(), [[False, False], [True, True], [False, True]])
+
+ def test_isalpha(self):
+ assert_(issubclass(self.A.isalpha().dtype.type, np.bool_))
+ assert_array_equal(self.A.isalpha(), [[False, False], [False, True], [False, True]])
+
+ def test_isdigit(self):
+ assert_(issubclass(self.A.isdigit().dtype.type, np.bool_))
+ assert_array_equal(self.A.isdigit(), [[False, False], [True, False], [False, False]])
+
+ def test_islower(self):
+ assert_(issubclass(self.A.islower().dtype.type, np.bool_))
+ assert_array_equal(self.A.islower(), [[True, False], [False, False], [False, False]])
+
+ def test_isspace(self):
+ assert_(issubclass(self.A.isspace().dtype.type, np.bool_))
+ assert_array_equal(self.A.isspace(), [[False, False], [False, False], [False, False]])
+
+ def test_istitle(self):
+ assert_(issubclass(self.A.istitle().dtype.type, np.bool_))
+ assert_array_equal(self.A.istitle(), [[False, False], [False, False], [False, False]])
+
+ def test_isupper(self):
+ assert_(issubclass(self.A.isupper().dtype.type, np.bool_))
+ assert_array_equal(self.A.isupper(), [[False, False], [False, False], [False, True]])
+
+ def test_rfind(self):
+ assert_(issubclass(self.A.rfind('a').dtype.type, np.integer))
+ assert_array_equal(self.A.rfind('a'), [[1, -1], [-1, 6], [-1, -1]])
+ assert_array_equal(self.A.rfind('3'), [[-1, -1], [2, -1], [6, -1]])
+ assert_array_equal(self.A.rfind('a', 0, 2), [[1, -1], [-1, -1], [-1, -1]])
+ assert_array_equal(self.A.rfind(['1', 'P']), [[-1, -1], [0, -1], [0, 2]])
+
+ def test_rindex(self):
+
+ def fail():
+ self.A.rindex('a')
+
+ assert_raises(ValueError, fail)
+ assert_(np.char.rindex('abcba', 'b') == 3)
+ assert_(issubclass(np.char.rindex('abcba', 'b').dtype.type, np.integer))
+
+ def test_startswith(self):
+ assert_(issubclass(self.A.startswith('').dtype.type, np.bool_))
+ assert_array_equal(self.A.startswith(' '), [[1, 0], [0, 0], [0, 0]])
+ assert_array_equal(self.A.startswith('1', 0, 3), [[0, 0], [1, 0], [1, 0]])
+
+ def fail():
+ self.A.startswith('3', 'fdjk')
+
+ assert_raises(TypeError, fail)
+
+
+class TestMethods:
+ def setup_method(self):
+ self.A = np.array([[' abc ', ''],
+ ['12345', 'MixedCase'],
+ ['123 \t 345 \0 ', 'UPPER']],
+ dtype='S').view(np.chararray)
+ self.B = np.array([[' \u03a3 ', ''],
+ ['12345', 'MixedCase'],
+ ['123 \t 345 \0 ', 'UPPER']]).view(np.chararray)
+
+ def test_capitalize(self):
+ tgt = [[b' abc ', b''],
+ [b'12345', b'Mixedcase'],
+ [b'123 \t 345 \0 ', b'Upper']]
+ assert_(issubclass(self.A.capitalize().dtype.type, np.bytes_))
+ assert_array_equal(self.A.capitalize(), tgt)
+
+ tgt = [[' \u03c3 ', ''],
+ ['12345', 'Mixedcase'],
+ ['123 \t 345 \0 ', 'Upper']]
+ assert_(issubclass(self.B.capitalize().dtype.type, np.str_))
+ assert_array_equal(self.B.capitalize(), tgt)
+
+ def test_center(self):
+ assert_(issubclass(self.A.center(10).dtype.type, np.bytes_))
+ C = self.A.center([10, 20])
+ assert_array_equal(np.char.str_len(C), [[10, 20], [10, 20], [12, 20]])
+
+ C = self.A.center(20, b'#')
+ assert_(np.all(C.startswith(b'#')))
+ assert_(np.all(C.endswith(b'#')))
+
+ C = np.char.center(b'FOO', [[10, 20], [15, 8]])
+ tgt = [[b' FOO ', b' FOO '],
+ [b' FOO ', b' FOO ']]
+ assert_(issubclass(C.dtype.type, np.bytes_))
+ assert_array_equal(C, tgt)
+
+ def test_decode(self):
+ A = np.char.array([b'\\u03a3'])
+ assert_(A.decode('unicode-escape')[0] == '\u03a3')
+
+ def test_encode(self):
+ B = self.B.encode('unicode_escape')
+ assert_(B[0][0] == str(' \\u03a3 ').encode('latin1'))
+
+ def test_expandtabs(self):
+ T = self.A.expandtabs()
+ assert_(T[2, 0] == b'123 345 \0')
+
+ def test_join(self):
+ # NOTE: list(b'123') == [49, 50, 51]
+ # so that b','.join(b'123') results to an error on Py3
+ A0 = self.A.decode('ascii')
+
+ A = np.char.join([',', '#'], A0)
+ assert_(issubclass(A.dtype.type, np.str_))
+ tgt = np.array([[' ,a,b,c, ', ''],
+ ['1,2,3,4,5', 'M#i#x#e#d#C#a#s#e'],
+ ['1,2,3, ,\t, ,3,4,5, ,\x00, ', 'U#P#P#E#R']])
+ assert_array_equal(np.char.join([',', '#'], A0), tgt)
+
+ def test_ljust(self):
+ assert_(issubclass(self.A.ljust(10).dtype.type, np.bytes_))
+
+ C = self.A.ljust([10, 20])
+ assert_array_equal(np.char.str_len(C), [[10, 20], [10, 20], [12, 20]])
+
+ C = self.A.ljust(20, b'#')
+ assert_array_equal(C.startswith(b'#'), [
+ [False, True], [False, False], [False, False]])
+ assert_(np.all(C.endswith(b'#')))
+
+ C = np.char.ljust(b'FOO', [[10, 20], [15, 8]])
+ tgt = [[b'FOO ', b'FOO '],
+ [b'FOO ', b'FOO ']]
+ assert_(issubclass(C.dtype.type, np.bytes_))
+ assert_array_equal(C, tgt)
+
+ def test_lower(self):
+ tgt = [[b' abc ', b''],
+ [b'12345', b'mixedcase'],
+ [b'123 \t 345 \0 ', b'upper']]
+ assert_(issubclass(self.A.lower().dtype.type, np.bytes_))
+ assert_array_equal(self.A.lower(), tgt)
+
+ tgt = [[' \u03c3 ', ''],
+ ['12345', 'mixedcase'],
+ ['123 \t 345 \0 ', 'upper']]
+ assert_(issubclass(self.B.lower().dtype.type, np.str_))
+ assert_array_equal(self.B.lower(), tgt)
+
+ def test_lstrip(self):
+ tgt = [[b'abc ', b''],
+ [b'12345', b'MixedCase'],
+ [b'123 \t 345 \0 ', b'UPPER']]
+ assert_(issubclass(self.A.lstrip().dtype.type, np.bytes_))
+ assert_array_equal(self.A.lstrip(), tgt)
+
+ tgt = [[b' abc', b''],
+ [b'2345', b'ixedCase'],
+ [b'23 \t 345 \x00', b'UPPER']]
+ assert_array_equal(self.A.lstrip([b'1', b'M']), tgt)
+
+ tgt = [['\u03a3 ', ''],
+ ['12345', 'MixedCase'],
+ ['123 \t 345 \0 ', 'UPPER']]
+ assert_(issubclass(self.B.lstrip().dtype.type, np.str_))
+ assert_array_equal(self.B.lstrip(), tgt)
+
+ def test_partition(self):
+ P = self.A.partition([b'3', b'M'])
+ tgt = [[(b' abc ', b'', b''), (b'', b'', b'')],
+ [(b'12', b'3', b'45'), (b'', b'M', b'ixedCase')],
+ [(b'12', b'3', b' \t 345 \0 '), (b'UPPER', b'', b'')]]
+ assert_(issubclass(P.dtype.type, np.bytes_))
+ assert_array_equal(P, tgt)
+
+ def test_replace(self):
+ R = self.A.replace([b'3', b'a'],
+ [b'##########', b'@'])
+ tgt = [[b' abc ', b''],
+ [b'12##########45', b'MixedC@se'],
+ [b'12########## \t ##########45 \x00', b'UPPER']]
+ assert_(issubclass(R.dtype.type, np.bytes_))
+ assert_array_equal(R, tgt)
+
+ def test_rjust(self):
+ assert_(issubclass(self.A.rjust(10).dtype.type, np.bytes_))
+
+ C = self.A.rjust([10, 20])
+ assert_array_equal(np.char.str_len(C), [[10, 20], [10, 20], [12, 20]])
+
+ C = self.A.rjust(20, b'#')
+ assert_(np.all(C.startswith(b'#')))
+ assert_array_equal(C.endswith(b'#'),
+ [[False, True], [False, False], [False, False]])
+
+ C = np.char.rjust(b'FOO', [[10, 20], [15, 8]])
+ tgt = [[b' FOO', b' FOO'],
+ [b' FOO', b' FOO']]
+ assert_(issubclass(C.dtype.type, np.bytes_))
+ assert_array_equal(C, tgt)
+
+ def test_rpartition(self):
+ P = self.A.rpartition([b'3', b'M'])
+ tgt = [[(b'', b'', b' abc '), (b'', b'', b'')],
+ [(b'12', b'3', b'45'), (b'', b'M', b'ixedCase')],
+ [(b'123 \t ', b'3', b'45 \0 '), (b'', b'', b'UPPER')]]
+ assert_(issubclass(P.dtype.type, np.bytes_))
+ assert_array_equal(P, tgt)
+
+ def test_rsplit(self):
+ A = self.A.rsplit(b'3')
+ tgt = [[[b' abc '], [b'']],
+ [[b'12', b'45'], [b'MixedCase']],
+ [[b'12', b' \t ', b'45 \x00 '], [b'UPPER']]]
+ assert_(issubclass(A.dtype.type, np.object_))
+ assert_equal(A.tolist(), tgt)
+
+ def test_rstrip(self):
+ assert_(issubclass(self.A.rstrip().dtype.type, np.bytes_))
+
+ tgt = [[b' abc', b''],
+ [b'12345', b'MixedCase'],
+ [b'123 \t 345', b'UPPER']]
+ assert_array_equal(self.A.rstrip(), tgt)
+
+ tgt = [[b' abc ', b''],
+ [b'1234', b'MixedCase'],
+ [b'123 \t 345 \x00', b'UPP']
+ ]
+ assert_array_equal(self.A.rstrip([b'5', b'ER']), tgt)
+
+ tgt = [[' \u03a3', ''],
+ ['12345', 'MixedCase'],
+ ['123 \t 345', 'UPPER']]
+ assert_(issubclass(self.B.rstrip().dtype.type, np.str_))
+ assert_array_equal(self.B.rstrip(), tgt)
+
+ def test_strip(self):
+ tgt = [[b'abc', b''],
+ [b'12345', b'MixedCase'],
+ [b'123 \t 345', b'UPPER']]
+ assert_(issubclass(self.A.strip().dtype.type, np.bytes_))
+ assert_array_equal(self.A.strip(), tgt)
+
+ tgt = [[b' abc ', b''],
+ [b'234', b'ixedCas'],
+ [b'23 \t 345 \x00', b'UPP']]
+ assert_array_equal(self.A.strip([b'15', b'EReM']), tgt)
+
+ tgt = [['\u03a3', ''],
+ ['12345', 'MixedCase'],
+ ['123 \t 345', 'UPPER']]
+ assert_(issubclass(self.B.strip().dtype.type, np.str_))
+ assert_array_equal(self.B.strip(), tgt)
+
+ def test_split(self):
+ A = self.A.split(b'3')
+ tgt = [
+ [[b' abc '], [b'']],
+ [[b'12', b'45'], [b'MixedCase']],
+ [[b'12', b' \t ', b'45 \x00 '], [b'UPPER']]]
+ assert_(issubclass(A.dtype.type, np.object_))
+ assert_equal(A.tolist(), tgt)
+
+ def test_splitlines(self):
+ A = np.char.array(['abc\nfds\nwer']).splitlines()
+ assert_(issubclass(A.dtype.type, np.object_))
+ assert_(A.shape == (1,))
+ assert_(len(A[0]) == 3)
+
+ def test_swapcase(self):
+ tgt = [[b' ABC ', b''],
+ [b'12345', b'mIXEDcASE'],
+ [b'123 \t 345 \0 ', b'upper']]
+ assert_(issubclass(self.A.swapcase().dtype.type, np.bytes_))
+ assert_array_equal(self.A.swapcase(), tgt)
+
+ tgt = [[' \u03c3 ', ''],
+ ['12345', 'mIXEDcASE'],
+ ['123 \t 345 \0 ', 'upper']]
+ assert_(issubclass(self.B.swapcase().dtype.type, np.str_))
+ assert_array_equal(self.B.swapcase(), tgt)
+
+ def test_title(self):
+ tgt = [[b' Abc ', b''],
+ [b'12345', b'Mixedcase'],
+ [b'123 \t 345 \0 ', b'Upper']]
+ assert_(issubclass(self.A.title().dtype.type, np.bytes_))
+ assert_array_equal(self.A.title(), tgt)
+
+ tgt = [[' \u03a3 ', ''],
+ ['12345', 'Mixedcase'],
+ ['123 \t 345 \0 ', 'Upper']]
+ assert_(issubclass(self.B.title().dtype.type, np.str_))
+ assert_array_equal(self.B.title(), tgt)
+
+ def test_upper(self):
+ tgt = [[b' ABC ', b''],
+ [b'12345', b'MIXEDCASE'],
+ [b'123 \t 345 \0 ', b'UPPER']]
+ assert_(issubclass(self.A.upper().dtype.type, np.bytes_))
+ assert_array_equal(self.A.upper(), tgt)
+
+ tgt = [[' \u03a3 ', ''],
+ ['12345', 'MIXEDCASE'],
+ ['123 \t 345 \0 ', 'UPPER']]
+ assert_(issubclass(self.B.upper().dtype.type, np.str_))
+ assert_array_equal(self.B.upper(), tgt)
+
+ def test_isnumeric(self):
+
+ def fail():
+ self.A.isnumeric()
+
+ assert_raises(TypeError, fail)
+ assert_(issubclass(self.B.isnumeric().dtype.type, np.bool_))
+ assert_array_equal(self.B.isnumeric(), [
+ [False, False], [True, False], [False, False]])
+
+ def test_isdecimal(self):
+
+ def fail():
+ self.A.isdecimal()
+
+ assert_raises(TypeError, fail)
+ assert_(issubclass(self.B.isdecimal().dtype.type, np.bool_))
+ assert_array_equal(self.B.isdecimal(), [
+ [False, False], [True, False], [False, False]])
+
+
+class TestOperations:
+ def setup_method(self):
+ self.A = np.array([['abc', '123'],
+ ['789', 'xyz']]).view(np.chararray)
+ self.B = np.array([['efg', '456'],
+ ['051', 'tuv']]).view(np.chararray)
+
+ def test_add(self):
+ AB = np.array([['abcefg', '123456'],
+ ['789051', 'xyztuv']]).view(np.chararray)
+ assert_array_equal(AB, (self.A + self.B))
+ assert_(len((self.A + self.B)[0][0]) == 6)
+
+ def test_radd(self):
+ QA = np.array([['qabc', 'q123'],
+ ['q789', 'qxyz']]).view(np.chararray)
+ assert_array_equal(QA, ('q' + self.A))
+
+ def test_mul(self):
+ A = self.A
+ for r in (2, 3, 5, 7, 197):
+ Ar = np.array([[A[0, 0]*r, A[0, 1]*r],
+ [A[1, 0]*r, A[1, 1]*r]]).view(np.chararray)
+
+ assert_array_equal(Ar, (self.A * r))
+
+ for ob in [object(), 'qrs']:
+ with assert_raises_regex(ValueError,
+ 'Can only multiply by integers'):
+ A*ob
+
+ def test_rmul(self):
+ A = self.A
+ for r in (2, 3, 5, 7, 197):
+ Ar = np.array([[A[0, 0]*r, A[0, 1]*r],
+ [A[1, 0]*r, A[1, 1]*r]]).view(np.chararray)
+ assert_array_equal(Ar, (r * self.A))
+
+ for ob in [object(), 'qrs']:
+ with assert_raises_regex(ValueError,
+ 'Can only multiply by integers'):
+ ob * A
+
+ def test_mod(self):
+ """Ticket #856"""
+ F = np.array([['%d', '%f'], ['%s', '%r']]).view(np.chararray)
+ C = np.array([[3, 7], [19, 1]])
+ FC = np.array([['3', '7.000000'],
+ ['19', '1']]).view(np.chararray)
+ assert_array_equal(FC, F % C)
+
+ A = np.array([['%.3f', '%d'], ['%s', '%r']]).view(np.chararray)
+ A1 = np.array([['1.000', '1'], ['1', '1']]).view(np.chararray)
+ assert_array_equal(A1, (A % 1))
+
+ A2 = np.array([['1.000', '2'], ['3', '4']]).view(np.chararray)
+ assert_array_equal(A2, (A % [[1, 2], [3, 4]]))
+
+ def test_rmod(self):
+ assert_(("%s" % self.A) == str(self.A))
+ assert_(("%r" % self.A) == repr(self.A))
+
+ for ob in [42, object()]:
+ with assert_raises_regex(
+ TypeError, "unsupported operand type.* and 'chararray'"):
+ ob % self.A
+
+ def test_slice(self):
+ """Regression test for https://github.com/numpy/numpy/issues/5982"""
+
+ arr = np.array([['abc ', 'def '], ['geh ', 'ijk ']],
+ dtype='S4').view(np.chararray)
+ sl1 = arr[:]
+ assert_array_equal(sl1, arr)
+ assert_(sl1.base is arr)
+ assert_(sl1.base.base is arr.base)
+
+ sl2 = arr[:, :]
+ assert_array_equal(sl2, arr)
+ assert_(sl2.base is arr)
+ assert_(sl2.base.base is arr.base)
+
+ assert_(arr[0, 0] == b'abc')
+
+
+def test_empty_indexing():
+ """Regression test for ticket 1948."""
+ # Check that indexing a chararray with an empty list/array returns an
+ # empty chararray instead of a chararray with a single empty string in it.
+ s = np.chararray((4,))
+ assert_(s[[]].size == 0)
+
+
+@pytest.mark.parametrize(["dt1", "dt2"],
+ [("S", "U"), ("U", "S"), ("S", "O"), ("U", "O"),
+ ("S", "d"), ("S", "V")])
+def test_add_types(dt1, dt2):
+ arr1 = np.array([1234234], dtype=dt1)
+ # If the following fails, e.g. use a number and test "V" explicitly
+ arr2 = np.array([b"423"], dtype=dt2)
+ with pytest.raises(TypeError,
+ match=f".*same dtype kind.*{arr1.dtype}.*{arr2.dtype}"):
+ np.char.add(arr1, arr2)
generated by cgit v1.2.3 (git 2.47.1) at 2025-07-26 21:09:47 +0000