tests/test-run-tests.py
author Augie Fackler <augie@google.com>
Wed, 09 Oct 2019 20:49:58 -0700
changeset 43153 741fb1a95da2
parent 43076 2372284d9457
child 47573 75b623801f6a
permissions -rw-r--r--
fuzz: new target to fuzz jsonescapeu8fast This code just feels complicated enough we should go ahead and give it a dedicated fuzzer: we've found bugs in similar things before. Differential Revision: https://phab.mercurial-scm.org/D7034
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"""test line matching with some failing examples and some which warn
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run-test.t only checks positive matches and can not see warnings
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(both by design)
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"""
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from __future__ import absolute_import, print_function
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import doctest
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import os
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import re
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# this is hack to make sure no escape characters are inserted into the output
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if 'TERM' in os.environ:
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    del os.environ['TERM']
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run_tests = __import__('run-tests')
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def prn(ex):
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    m = ex.args[0]
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    if isinstance(m, str):
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        print(m)
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    else:
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        print(m.decode('utf-8'))
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def lm(expected, output):
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    r"""check if output matches expected
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    does it generally work?
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        >>> lm(b'H*e (glob)\n', b'Here\n')
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        True
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    fail on bad test data
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        >>> try: lm(b'a\n',b'a')
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        ... except AssertionError as ex: print(ex)
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        missing newline
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        >>> try: lm(b'single backslash\n', b'single \backslash\n')
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        ... except AssertionError as ex: prn(ex)
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        single backslash or unknown char
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    """
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    assert expected.endswith(b'\n') and output.endswith(
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        b'\n'
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    ), 'missing newline'
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    assert not re.search(
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        br'[^ \w\\/\r\n()*?]', expected + output
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    ), b'single backslash or unknown char'
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    test = run_tests.TTest(b'test-run-test.t', b'.', b'.')
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    match, exact = test.linematch(expected, output)
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    if isinstance(match, str):
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        return 'special: ' + match
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    elif isinstance(match, bytes):
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        return 'special: ' + match.decode('utf-8')
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    else:
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        return bool(match)  # do not return match object
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def wintests():
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    r"""test matching like running on windows
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    enable windows matching on any os
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        >>> _osaltsep = os.altsep
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        >>> os.altsep = True
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        >>> _osname = os.name
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        >>> os.name = 'nt'
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    valid match on windows
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        >>> lm(b'g/a*/d (glob)\n', b'g\\abc/d\n')
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        True
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    direct matching, glob unnecessary
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        >>> lm(b'g/b (glob)\n', b'g/b\n')
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        'special: -glob'
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    missing glob
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        >>> lm(b'/g/c/d/fg\n', b'\\g\\c\\d/fg\n')
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        True
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        >>> lm(b'/g/c/d/fg\n', b'\\g\\c\\d\\fg\r\n')
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        True
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    restore os.altsep
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        >>> os.altsep = _osaltsep
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        >>> os.name = _osname
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    """
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    pass
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def otherostests():
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    r"""test matching like running on non-windows os
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    disable windows matching on any os
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        >>> _osaltsep = os.altsep
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        >>> os.altsep = False
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        >>> _osname = os.name
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        >>> os.name = 'nt'
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    backslash does not match slash
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        >>> lm(b'h/a* (glob)\n', b'h\\ab\n')
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        False
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    direct matching glob can not be recognized
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        >>> lm(b'h/b (glob)\n', b'h/b\n')
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        True
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    missing glob can not not be recognized
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        >>> lm(b'/h/c/df/g/\n', b'\\h/c\\df/g\\\n')
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        False
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    restore os.altsep
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        >>> os.altsep = _osaltsep
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        >>> os.name = _osname
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    """
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    pass
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if __name__ == '__main__':
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    doctest.testmod()