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Diffstat (limited to 'Lib/test/test_syntax.py')
| -rw-r--r-- | Lib/test/test_syntax.py | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/Lib/test/test_syntax.py b/Lib/test/test_syntax.py index acb3f10..a0eaac6 100644 --- a/Lib/test/test_syntax.py +++ b/Lib/test/test_syntax.py @@ -235,6 +235,138 @@ SyntaxError: assignment to None (<doctest test.test_syntax[32]>, line 1) >>> f() += 1 Traceback (most recent call last): SyntaxError: illegal expression for augmented assignment (<doctest test.test_syntax[33]>, line 1) + + +Test continue in finally in weird combinations. + +continue in for loop under finally shouuld be ok. + + >>> def test(): + ... try: + ... pass + ... finally: + ... for abc in range(10): + ... continue + ... print abc + >>> test() + 9 + +Start simple, a continue in a finally should not be allowed. + + >>> def test(): + ... for abc in range(10): + ... try: + ... pass + ... finally: + ... continue + Traceback (most recent call last): + ... + SyntaxError: 'continue' not supported inside 'finally' clause (<doctest test.test_syntax[36]>, line 6) + +This is essentially a continue in a finally which should not be allowed. + + >>> def test(): + ... for abc in range(10): + ... try: + ... pass + ... finally: + ... try: + ... continue + ... except: + ... pass + Traceback (most recent call last): + ... + SyntaxError: 'continue' not supported inside 'finally' clause (<doctest test.test_syntax[37]>, line 7) + + >>> def foo(): + ... try: + ... pass + ... finally: + ... continue + Traceback (most recent call last): + ... + SyntaxError: 'continue' not supported inside 'finally' clause (<doctest test.test_syntax[38]>, line 5) + + >>> def foo(): + ... for a in (): + ... try: + ... pass + ... finally: + ... continue + Traceback (most recent call last): + ... + SyntaxError: 'continue' not supported inside 'finally' clause (<doctest test.test_syntax[39]>, line 6) + + >>> def foo(): + ... for a in (): + ... try: + ... pass + ... finally: + ... try: + ... continue + ... finally: + ... pass + Traceback (most recent call last): + ... + SyntaxError: 'continue' not supported inside 'finally' clause (<doctest test.test_syntax[40]>, line 7) + + >>> def foo(): + ... for a in (): + ... try: pass + ... finally: + ... try: + ... pass + ... except: + ... continue + Traceback (most recent call last): + ... + SyntaxError: 'continue' not supported inside 'finally' clause (<doctest test.test_syntax[41]>, line 8) + +There is one test for a break that is not in a loop. The compiler +uses a single data structure to keep track of try-finally and loops, +so we need to be sure that a break is actually inside a loop. If it +isn't, there should be a syntax error. + + >>> try: + ... print 1 + ... break + ... print 2 + ... finally: + ... print 3 + Traceback (most recent call last): + ... + SyntaxError: 'break' outside loop (<doctest test.test_syntax[42]>, line 3) + +This should probably raise a better error than a SystemError (or none at all). +In 2.5 there was a missing exception and an assert was triggered in a debug +build. The number of blocks must be greater than CO_MAXBLOCKS. SF #1565514 + + >>> while 1: + ... while 2: + ... while 3: + ... while 4: + ... while 5: + ... while 6: + ... while 8: + ... while 9: + ... while 10: + ... while 11: + ... while 12: + ... while 13: + ... while 14: + ... while 15: + ... while 16: + ... while 17: + ... while 18: + ... while 19: + ... while 20: + ... while 21: + ... while 22: + ... break + Traceback (most recent call last): + ... + SystemError: too many statically nested blocks + """ import re |