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Merge issue #21669 from 3.4

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Nick Coghlan 2014-06-16 19:49:12 +10:00
commit 26171993fe
3 changed files with 165 additions and 0 deletions
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25
Lib/test/test_grammar.py
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@ -390,6 +390,31 @@ class GrammarTests(unittest.TestCase):
check_syntax_error(self, "x + 1 = 1")
check_syntax_error(self, "a + 1 = b + 2")
# Check the heuristic for print & exec covers significant cases
# As well as placing some limits on false positives
def test_former_statements_refer_to_builtins(self):
keywords = "print", "exec"
# Cases where we want the custom error
cases = [
"{} foo",
"{} {{1:foo}}",
"if 1: {} foo",
"if 1: {} {{1:foo}}",
"if 1:\n {} foo",
"if 1:\n {} {{1:foo}}",
]
for keyword in keywords:
custom_msg = "call to '{}'".format(keyword)
for case in cases:
source = case.format(keyword)
with self.subTest(source=source):
with self.assertRaisesRegex(SyntaxError, custom_msg):
exec(source)
source = source.replace("foo", "(foo.)")
with self.subTest(source=source):
with self.assertRaisesRegex(SyntaxError, "invalid syntax"):
exec(source)
def test_del_stmt(self):
# 'del' exprlist
abc = [1,2,3]