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✏️ test_html.py
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""" Tests for the html module functions. """ import html import unittest class HtmlTests(unittest.TestCase): def test_escape(self): self.assertEqual( html.escape('\'<script>"&foo;"</script>\''), ''<script>"&foo;"</script>'') self.assertEqual( html.escape('\'<script>"&foo;"</script>\'', False), '\'<script>"&foo;"</script>\'') def test_unescape(self): numeric_formats = ['&#%d', '&#%d;', '&#x%x', '&#x%x;'] errmsg = 'unescape(%r) should have returned %r' def check(text, expected): self.assertEqual(html.unescape(text), expected, msg=errmsg % (text, expected)) def check_num(num, expected): for format in numeric_formats: text = format % num self.assertEqual(html.unescape(text), expected, msg=errmsg % (text, expected)) # check text with no character references check('no character references', 'no character references') # check & followed by invalid chars check('&\n&\t& &&', '&\n&\t& &&') # check & followed by numbers and letters check('&0 &9 &a &0; &9; &a;', '&0 &9 &a &0; &9; &a;') # check incomplete entities at the end of the string for x in ['&', '&#', '&#x', '&#X', '&#y', '&#xy', '&#Xy']: check(x, x) check(x+';', x+';') # check several combinations of numeric character references, # possibly followed by different characters formats = ['&#%d', '&#%07d', '&#%d;', '&#%07d;', '&#x%x', '&#x%06x', '&#x%x;', '&#x%06x;', '&#x%X', '&#x%06X', '&#X%x;', '&#X%06x;'] for num, char in zip([65, 97, 34, 38, 0x2603, 0x101234], ['A', 'a', '"', '&', '\u2603', '\U00101234']): for s in formats: check(s % num, char) for end in [' ', 'X']: check((s+end) % num, char+end) # check invalid code points for cp in [0xD800, 0xDB00, 0xDC00, 0xDFFF, 0x110000]: check_num(cp, '\uFFFD') # check more invalid code points for cp in [0x1, 0xb, 0xe, 0x7f, 0xfffe, 0xffff, 0x10fffe, 0x10ffff]: check_num(cp, '') # check invalid numbers for num, ch in zip([0x0d, 0x80, 0x95, 0x9d], '\r\u20ac\u2022\x9d'): check_num(num, ch) # check small numbers check_num(0, '\uFFFD') check_num(9, '\t') # check a big number check_num(1000000000000000000, '\uFFFD') # check that multiple trailing semicolons are handled correctly for e in ['";', '";', '";', '";']: check(e, '";') # check that semicolons in the middle don't create problems for e in ['"quot;', '"quot;', '"quot;', '"quot;']: check(e, '"quot;') # check triple adjacent charrefs for e in ['"', '"', '"', '"']: check(e*3, '"""') check((e+';')*3, '"""') # check that the case is respected for e in ['&', '&', '&', '&']: check(e, '&') for e in ['&Amp', '&Amp;']: check(e, e) # check that non-existent named entities are returned unchanged check('&svadilfari;', '&svadilfari;') # the following examples are in the html5 specs check('¬it', '¬it') check('¬it;', '¬it;') check('¬in', '¬in') check('∉', '∉') # a similar example with a long name check('¬ReallyAnExistingNamedCharacterReference;', '¬ReallyAnExistingNamedCharacterReference;') # longest valid name check('∳', '∳') # check a charref that maps to two unicode chars check('∾̳', '\u223E\u0333') check('&acE', '&acE') # see #12888 check('{ ' * 1050, '{ ' * 1050) # see #15156 check('ÉricÉric&alphacentauriαcentauri', 'ÉricÉric&alphacentauriαcentauri') check('&co;', '&co;') if __name__ == '__main__': unittest.main()
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