You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
111 lines
2.4 KiB
111 lines
2.4 KiB
# test syntax errors
|
|
|
|
def test_syntax(code):
|
|
try:
|
|
exec(code)
|
|
print("no SyntaxError")
|
|
except IndentationError:
|
|
print("IndentationError")
|
|
except SyntaxError:
|
|
print("SyntaxError")
|
|
|
|
# non-newline after line-continuation character (lexer error)
|
|
test_syntax("a \\a\n")
|
|
|
|
# dedent mismatch (lexer error)
|
|
test_syntax("def f():\n a\n a\n")
|
|
|
|
# unclosed string (lexer error)
|
|
test_syntax("'abc")
|
|
|
|
# invalid (lexer error)
|
|
test_syntax("!")
|
|
test_syntax("$")
|
|
test_syntax("`")
|
|
|
|
# bad indentation (lexer error)
|
|
test_syntax(" a\n")
|
|
|
|
# malformed integer literal (parser error)
|
|
test_syntax("123z")
|
|
|
|
# can't assign to literals
|
|
test_syntax("1 = 2")
|
|
test_syntax("'' = 1")
|
|
test_syntax("{} = 1")
|
|
|
|
# can't assign to comprehension
|
|
test_syntax("(i for i in a) = 1")
|
|
|
|
# can't assign to function
|
|
test_syntax("f() = 1")
|
|
|
|
# can't assign to power
|
|
test_syntax("f**2 = 1")
|
|
|
|
# can't assign to power of composite
|
|
test_syntax("f[0]**2 = 1")
|
|
|
|
# can't assign to empty tuple
|
|
test_syntax("() = 1")
|
|
|
|
# can't have multiple *x on LHS
|
|
test_syntax("*a, *b = c")
|
|
|
|
# can't do augmented assignment to tuple
|
|
test_syntax("a, b += c")
|
|
test_syntax("(a, b) += c")
|
|
|
|
# can't do augmented assignment to list
|
|
test_syntax("[a, b] += c")
|
|
|
|
# non-default argument can't follow default argument
|
|
test_syntax("def f(a=1, b): pass")
|
|
|
|
# can't delete these things
|
|
test_syntax("del ()")
|
|
test_syntax("del f()")
|
|
test_syntax("del f[0]**2")
|
|
test_syntax("del (a for a in a)")
|
|
|
|
# must be in a "loop"
|
|
test_syntax("break")
|
|
test_syntax("continue")
|
|
|
|
# must be in a function
|
|
test_syntax("return")
|
|
test_syntax("yield")
|
|
test_syntax("nonlocal a")
|
|
|
|
# errors on uPy but shouldn't
|
|
#test_syntax("global a; global a")
|
|
#test_syntax("def f():\n a = 1\n global a")
|
|
|
|
# default except must be last
|
|
test_syntax("try:\n a\nexcept:\n pass\nexcept:\n pass")
|
|
|
|
# can't have multiple * or **
|
|
test_syntax("f(*a, *b)")
|
|
test_syntax("f(**a, **b)")
|
|
|
|
# LHS of keywords must be id's
|
|
test_syntax("f(1=2)")
|
|
|
|
# non-keyword after keyword
|
|
test_syntax("f(a=1, 2)")
|
|
|
|
# doesn't error on uPy but should
|
|
#test_syntax("f(1, i for i in i)")
|
|
|
|
# all elements of dict/set must be pairs or singles
|
|
test_syntax("{1:2, 3}")
|
|
test_syntax("{1, 2:3}")
|
|
|
|
# can't mix non-bytes with bytes when concatenating
|
|
test_syntax("'abc' b'def'")
|
|
|
|
# can't reuse same name for argument
|
|
test_syntax("def f(a, a): pass")
|
|
|
|
# nonlocal must exist in outer function/class scope
|
|
test_syntax("def f():\n def g():\n nonlocal a")
|
|
|