def test_null(self):
"""Anything maybe using C strings MIGHT screw up ASCII NUL
"""
assert scary(b"\0")
assert scary(b"\0b")
assert scary(b"a\0b")
assert scary(b"a\0")
def test_empty(self):
"""Empty variables can combine in surprising ways in shell
and occur in a huge number of ways, intentional or not.
So this is one of the first things to check.
"""
assert scary(b'')
def test_question_mark(self):
assert scary(b'?')
def test_variable_expansion(self):
"""prevent second-pass substitution of variable etc.
"""
assert scary(b'$HOME')
def test_star(self):
assert scary(b'*')
def test_hyphen(self):
assert not scary(b"/home/user/ve-place")
def test_comma(self):
assert not scary(b"/home/user/python,ruby/virtualenvs")
def test_background(self):
assert scary(b"sleep 10 &")
def test_normal(self):
assert not scary(b"/home/user/whatever")
assert not scary(b"/opt/weird/user/whatever")
assert not scary(b"/foo")
def test_here(self):
assert scary(b"<<<")
assert scary(b">>>")
def test_or(self):
assert scary(b"foo ||")
def test_leading_hyphen(self):
"""prevent passing switches (e.g. for find) instead of dir
"""
assert scary(b"-delete")
assert scary(b"--delete")
def test_root(self):
"""Using bare root seems inherently wrong
"""
assert scary(b"/")
assert scary(b"C:")
assert scary(b"C:\\")
def test_trailing_backslash(self):
"""prevent making outside char literal or continuing line
"""
assert len("\\") == 1
assert scary(b"prefix\\")
def test_leading_single_quote(self):
"""prevent a less obvious way of messing with completion scripts
"""
assert scary(b"' 'seems bad")
assert scary(b"'")
def test_variable_expansion_with_slash_and_suffix(self):
"""suffix doesn't fool us either
"""
assert scary(b'/${HOME}/bar')
def test_variable_expansion_with_slash(self):
"""leading slash doesn't fool us
"""
assert scary(b'/${HOME}')
def test_variable_expansion_with_braces(self):
"""also with braces style
"""
assert scary(b'${HOME}')
def test_semicolon(self):
assert scary(b";")
def test_newline(self):
"""shell can easily mess up newlines
"""
assert scary(b"/foo\nbar")
assert scary(b"/foo\n/bar")
def test_and(self):
assert scary(b"foo &&")
def test_comment(self):
"""Don't want to ignore to end of shell line
"""
assert scary(b'#foo')
assert scary(b'stuff # foo')
def test_pipeline(self):
assert scary(b"| bar")
def test_arithmetic_expansion(self):
assert scary(b'$(( 2 + 2 ))')
def test_underscore(self):
assert not scary(b"/home/user/ve_place")
def test_integer_expansion(self):
assert scary(b'$[ 2 + 2 ]')
def test_space(self):
assert not scary(b"/home/user/ve place")
def test_lt(self):
assert scary(b'<foo')
def test_period(self):
assert not scary(b"/home/user/.virtualenvs")
def test_gt(self):
assert scary(b'>foo')