45 lines
2.3 KiB
Python
45 lines
2.3 KiB
Python
# -*- coding: utf-8 -*-
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import sys
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import unittest
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import Cython.Compiler.StringEncoding as StringEncoding
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class StringEncodingTest(unittest.TestCase):
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"""
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Test the StringEncoding module.
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"""
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def test_string_contains_lone_surrogates(self):
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self.assertFalse(StringEncoding.string_contains_lone_surrogates(u"abc"))
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self.assertFalse(StringEncoding.string_contains_lone_surrogates(u"\uABCD"))
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self.assertFalse(StringEncoding.string_contains_lone_surrogates(u"\N{SNOWMAN}"))
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# This behaves differently in Py2 when freshly parsed and read from a .pyc file,
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# but it seems to be a marshalling bug in Py2, which doesn't hurt us in Cython.
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if sys.version_info[0] != 2:
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self.assertTrue(StringEncoding.string_contains_lone_surrogates(u"\uD800\uDFFF"))
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# In Py2 with 16bit Unicode, the following is indistinguishable from the 32bit character.
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obfuscated_surrogate_pair = (u"\uDFFF" + "\uD800")[::-1]
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if sys.version_info[0] == 2 and sys.maxunicode == 65565:
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self.assertFalse(StringEncoding.string_contains_lone_surrogates(obfuscated_surrogate_pair))
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else:
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self.assertTrue(StringEncoding.string_contains_lone_surrogates(obfuscated_surrogate_pair))
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self.assertTrue(StringEncoding.string_contains_lone_surrogates(u"\uD800"))
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self.assertTrue(StringEncoding.string_contains_lone_surrogates(u"\uDFFF"))
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self.assertTrue(StringEncoding.string_contains_lone_surrogates(u"\uDFFF\uD800"))
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self.assertTrue(StringEncoding.string_contains_lone_surrogates(u"\uD800x\uDFFF"))
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def test_string_contains_surrogates(self):
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self.assertFalse(StringEncoding.string_contains_surrogates(u"abc"))
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self.assertFalse(StringEncoding.string_contains_surrogates(u"\uABCD"))
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self.assertFalse(StringEncoding.string_contains_surrogates(u"\N{SNOWMAN}"))
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self.assertTrue(StringEncoding.string_contains_surrogates(u"\uD800"))
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self.assertTrue(StringEncoding.string_contains_surrogates(u"\uDFFF"))
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self.assertTrue(StringEncoding.string_contains_surrogates(u"\uD800\uDFFF"))
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self.assertTrue(StringEncoding.string_contains_surrogates(u"\uDFFF\uD800"))
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self.assertTrue(StringEncoding.string_contains_surrogates(u"\uD800x\uDFFF"))
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