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cimport cython
cdef extern from *:
const Py_ssize_t PY_SSIZE_T_MIN
const Py_ssize_t PY_SSIZE_T_MAX
############################################################
# tests for char* slicing
cdef const char* cstring = "abcABCqtp"
@cython.test_assert_path_exists("//PythonCapiCallNode")
@cython.test_fail_if_path_exists("//AttributeNode")
def slice_charptr_decode():
"""
>>> print(str(slice_charptr_decode()).replace("u'", "'"))
('a', 'abc', 'abcABCqtp')
"""
return (cstring[:1].decode('UTF-8'),
cstring[:3].decode('UTF-8'),
cstring[:9].decode('UTF-8'))
@cython.test_assert_path_exists("//PythonCapiCallNode")
@cython.test_fail_if_path_exists("//AttributeNode")
def slice_charptr_decode_platform_encoding():
"""
>>> print(str(slice_charptr_decode()).replace("u'", "'"))
('a', 'abc', 'abcABCqtp')
"""
cdef bytes s = u'abcABCqtp'.encode()
cdef char* cstr = s
return (cstr[:1].decode(),
cstr[:3].decode(),
cstr[:9].decode())
@cython.test_assert_path_exists("//PythonCapiCallNode")
@cython.test_fail_if_path_exists("//AttributeNode")
def slice_charptr_decode_unknown_encoding():
"""
>>> print(str(slice_charptr_decode_unknown_encoding()).replace("u'", "'"))
('abcABCqtp', 'abcABCqtp', 'abc', 'abcABCqt')
"""
cdef const char* enc = 'UTF-8'
cdef const char* error_handling = 'strict'
return (cstring.decode(enc),
cstring.decode(enc, error_handling),
cstring[:3].decode(enc),
cstring[:8].decode(enc, error_handling))
@cython.test_assert_path_exists("//PythonCapiCallNode")
@cython.test_fail_if_path_exists("//AttributeNode")
def slice_charptr_decode_slice2():
"""
>>> print(str(slice_charptr_decode_slice2()).replace("u'", "'"))
('a', 'bc', 'tp')
"""
return (cstring[0:1].decode('UTF-8'),
cstring[1:3].decode('UTF-8'),
cstring[7:9].decode('UTF-8'))
@cython.test_assert_path_exists("//PythonCapiCallNode")
@cython.test_fail_if_path_exists("//AttributeNode")
def slice_charptr_decode_strlen():
"""
>>> print(str(slice_charptr_decode_strlen()).replace("u'", "'"))
('abcABCqtp', 'bcABCqtp', '', 'BCq', 'abcA', '')
"""
return (cstring.decode('UTF-8'),
cstring[1:].decode('UTF-8'),
cstring[9:].decode('UTF-8'),
cstring[-5:-2].decode('UTF-8'),
cstring[:-5].decode('UTF-8'),
cstring[:-9].decode('UTF-8'))
@cython.test_assert_path_exists("//PythonCapiCallNode")
@cython.test_fail_if_path_exists("//AttributeNode")
def slice_charptr_decode_unbound():
"""
>>> print(str(slice_charptr_decode_unbound()).replace("u'", "'"))
('a', 'abc', 'abcABCqtp')
"""
return (bytes.decode(cstring[:1], 'UTF-8'),
bytes.decode(cstring[:3], 'UTF-8', 'replace'),
bytes.decode(cstring[:9], 'UTF-8'))
@cython.test_assert_path_exists("//PythonCapiCallNode")
@cython.test_fail_if_path_exists("//AttributeNode")
def slice_charptr_decode_errormode():
"""
>>> print(str(slice_charptr_decode_errormode()).replace("u'", "'"))
('a', 'abc', 'abcABCqtp')
"""
return (cstring[:1].decode('UTF-8', 'strict'),
cstring[:3].decode('UTF-8', 'replace'),
cstring[:9].decode('UTF-8', 'unicode_escape'))
@cython.test_assert_path_exists("//PythonCapiCallNode")
@cython.test_fail_if_path_exists("//AttributeNode")
def slice_charptr_dynamic_bounds():
"""
>>> print(str(slice_charptr_dynamic_bounds()).replace("u'", "'"))
('abc', 'abc', 'bcAB', 'BCqtp')
"""
return (cstring[:return3()].decode('UTF-8'),
cstring[0:return3()].decode('UTF-8'),
cstring[return1():return5()].decode('UTF-8'),
cstring[return4():return9()].decode('UTF-8'))
@cython.test_assert_path_exists("//PythonCapiCallNode")
@cython.test_fail_if_path_exists("//AttributeNode")
def slice_charptr_dynamic_bounds_non_name():
"""
>>> print(str(slice_charptr_dynamic_bounds_non_name()).replace("u'", "'"))
('bcA', 'bcA', 'BCqtp', 'ABCqtp', 'bcABCqtp', 'bcABCqtp', 'cABC')
"""
return ((cstring+1)[:return3()].decode('UTF-8'),
(cstring+1)[0:return3()].decode('UTF-8'),
(cstring+1)[return3():].decode('UTF-8'),
(cstring+1)[2:].decode('UTF-8'),
(cstring+1)[0:].decode('UTF-8'),
(cstring+1)[:].decode('UTF-8'),
(cstring+1)[return1():return5()].decode('UTF-8'))
@cython.test_assert_path_exists("//PythonCapiCallNode")
@cython.test_fail_if_path_exists("//AttributeNode")
def slice_charptr_decode_large_bounds():
"""
>>> print(str(slice_charptr_decode_large_bounds()).replace("u'", "'"))
('abcABCqtp', '', '', '')
"""
return (cstring[PY_SSIZE_T_MIN:9].decode('UTF-8'),
cstring[PY_SSIZE_T_MAX:PY_SSIZE_T_MIN].decode('UTF-8'),
cstring[PY_SSIZE_T_MIN:PY_SSIZE_T_MIN].decode('UTF-8'),
cstring[PY_SSIZE_T_MAX:PY_SSIZE_T_MAX].decode('UTF-8'))
cdef return1(): return 1
cdef return3(): return 3
cdef return4(): return 4
cdef return5(): return 5
cdef return9(): return 9
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