tests/test-minifileset.py

tests: do not change sys.path, it can break loading cext.parsers

When running this tests with run-tests, the prefix would resolve
mercurial.cext to the source tree and the attempt to load
mercurial.cext.parsers would therefore fail since it doesn't exist in
it. With the regular search path from run-tests, it is picked up from
the temporary prefix correctly.

Differential Revision: https://phab.mercurial-scm.org/D4910

from __future__ import absolute_import
from __future__ import print_function

from mercurial import minifileset

def check(text, truecases, falsecases):
    f = minifileset.compile(text)
    for args in truecases:
        if not f(*args):
            print('unexpected: %r should include %r' % (text, args))
    for args in falsecases:
        if f(*args):
            print('unexpected: %r should exclude %r' % (text, args))

check(b'all()', [(b'a.php', 123), (b'b.txt', 0)], [])
check(b'none()', [], [(b'a.php', 123), (b'b.txt', 0)])
check(b'!!!!((!(!!all())))', [], [(b'a.php', 123), (b'b.txt', 0)])

check(b'"path:a" & (**.b | **.c)',
      [(b'a/b.b', 0), (b'a/c.c', 0)], [(b'b/c.c', 0)])
check(b'(path:a & **.b) | **.c',
      [(b'a/b.b', 0), (b'a/c.c', 0), (b'b/c.c', 0)], [])

check(b'**.bin - size("<20B")',
      [(b'b.bin', 21)], [(b'a.bin', 11), (b'b.txt', 21)])

check(b'!!**.bin or size(">20B") + "path:bin" or !size(">10")',
      [(b'a.bin', 11), (b'b.txt', 21), (b'bin/abc', 11)],
      [(b'a.notbin', 11), (b'b.txt', 11), (b'bin2/abc', 11)])

check(
    b'(**.php and size(">10KB")) | **.zip | ("path:bin" & !"path:bin/README") '
    b' | size(">1M")',
    [(b'a.php', 15000), (b'a.zip', 0), (b'bin/a', 0), (b'bin/README', 1e7)],
    [(b'a.php', 5000), (b'b.zip2', 0), (b't/bin/a', 0), (b'bin/README', 1)])