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Issue #21118: Add unit test for invalid character replacement (code point higher than U+10ffff)

This commit is contained in:
Victor Stinner 2014-04-05 11:56:37 +02:00
parent 89a76abf20
commit 4ff33af257
2 changed files with 18 additions and 10 deletions
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8
Lib/test/test_unicode.py
View File

@ -280,6 +280,14 @@ class UnicodeTest(string_tests.CommonTest,
self.assertEqual("[\xe9]".translate(str.maketrans({'\xe9': None})),
"[]")
# invalid Unicode characters
invalid_char = 0x10ffff+1
for before in "a\xe9\u20ac\U0010ffff":
mapping = str.maketrans({before: invalid_char})
text = "[%s]" % before
self.assertRaises(ValueError, text.translate, mapping)
# errors
self.assertRaises(TypeError, self.type2test.maketrans)
self.assertRaises(ValueError, self.type2test.maketrans, 'abc', 'defg')
self.assertRaises(TypeError, self.type2test.maketrans, 2, 'def')

20
Objects/unicodeobject.c
View File

@ -8473,10 +8473,10 @@ charmaptranslate_lookup(Py_UCS4 c, PyObject *mapping, PyObject **result)
}
else if (PyLong_Check(x)) {
long value = PyLong_AS_LONG(x);
long max = PyUnicode_GetMax();
if (value < 0 || value > max) {
PyErr_Format(PyExc_TypeError,
"character mapping must be in range(0x%x)", max+1);
if (value < 0 || value > MAX_UNICODE) {
PyErr_Format(PyExc_ValueError,
"character mapping must be in range(0x%x)",
MAX_UNICODE+1);
Py_DECREF(x);
return -1;
}
@ -8522,7 +8522,9 @@ charmaptranslate_output(Py_UCS4 ch, PyObject *mapping,
}
if (PyLong_Check(item)) {
Py_UCS4 ch = (Py_UCS4)PyLong_AS_LONG(item);
long ch = (Py_UCS4)PyLong_AS_LONG(item);
/* PyLong_AS_LONG() cannot fail, charmaptranslate_lookup() already
used it */
if (_PyUnicodeWriter_WriteCharInline(writer, ch) < 0) {
Py_DECREF(item);
return -1;
@ -8570,11 +8572,9 @@ unicode_fast_translate_lookup(PyObject *mapping, Py_UCS1 ch,
if (PyLong_Check(item)) {
long replace = (Py_UCS4)PyLong_AS_LONG(item);
if (replace == -1) {
Py_DECREF(item);
return -1;
}
if (replace < 0 || 127 < replace) {
/* PyLong_AS_LONG() cannot fail, charmaptranslate_lookup() already
used it */
if (127 < replace) {
/* invalid character or character outside ASCII:
skip the fast translate */
goto exit;