def test_escape(self):
for inp, exp in [('nothing to escape', 'nothing to escape'),
('still nothing $ @', 'still nothing $ @' ),
('1 backslash to 2: \\', '1 backslash to 2: \\\\'),
('3 bs to 6: \\\\\\', '3 bs to 6: \\\\\\\\\\\\'),
('\\' * 1000, '\\' * 2000 ),
('${notvar}', '\\${notvar}'),
('@{notvar}', '\\@{notvar}'),
('${nv} ${nv} @{nv}', '\\${nv} \\${nv} \\@{nv}'),
('\\${already esc}', '\\\\\\${already esc}'),
('\\${ae} \\\\@{ae} \\\\\\@{ae}',
'\\\\\\${ae} \\\\\\\\\\@{ae} \\\\\\\\\\\\\\@{ae}'),
('%{reserved}', '\\%{reserved}'),
('&{reserved}', '\\&{reserved}'),
('*{reserved}', '\\*{reserved}'),
('x{notreserved}', 'x{notreserved}'),
('named=arg', 'named\\=arg')]:
assert_equals(escape(inp), exp, inp)
def test_escape_control_words(self):
for inp in ['ELSE', 'ELSE IF', 'AND']:
assert_equals(escape(inp), '\\' + inp)
assert_equals(escape(inp.lower()), inp.lower())
assert_equals(escape('other' + inp), 'other' + inp)
assert_equals(escape(inp + ' '), inp + ' ')