mirrors/cpython
0
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-01-26 11:04:21 +08:00
Code Issues Packages Projects Releases Wiki Activity

Added tests for the new yield support in the parser module.

Browse Source 
(Should be merged with descr branch.)
This commit is contained in:
Fred Drake 2001-07-17 03:01:29 +00:00
parent 02126f20b6
commit cf580c7ea1
1 changed files with 132 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

133
Lib/test/test_parser.py
View File

@ -26,6 +26,18 @@ class RoundtripLegalSyntaxTestCase(unittest.TestCase):
def check_suite(self, s):
self.roundtrip(parser.suite, s)
def test_yield_statement(self):
self.check_suite("from __future__ import generators\n"
"def f(): yield 1")
self.check_suite("from __future__ import generators\n"
"def f(): return; yield 1")
self.check_suite("from __future__ import generators\n"
"def f(): yield 1; return")
self.check_suite("from __future__ import generators\n"
"def f():\n"
" for x in range(30):\n"
" yield x\n")
def test_expressions(self):
self.check_expr("foo(1)")
self.check_expr("[1, 2, 3]")
@ -138,8 +150,127 @@ class IllegalSyntaxTestCase(unittest.TestCase):
# not even remotely valid:
self.check_bad_tree((1, 2, 3), "<junk>")
def test_illegal_yield_1(self):
"""Illegal yield statement: def f(): return 1; yield 1"""
tree = \
(257,
(264,
(285,
(259,
(1, 'def'),
(1, 'f'),
(260, (7, '('), (8, ')')),
(11, ':'),
(291,
(4, ''),
(5, ''),
(264,
(265,
(266,
(272,
(275,
(1, 'return'),
(313,
(292,
(293,
(294,
(295,
(297,
(298,
(299,
(300,
(301,
(302, (303, (304, (305, (2, '1')))))))))))))))))),
(264,
(265,
(266,
(272,
(276,
(1, 'yield'),
(313,
(292,
(293,
(294,
(295,
(297,
(298,
(299,
(300,
(301,
(302,
(303, (304, (305, (2, '1')))))))))))))))))),
(4, ''))),
(6, ''))))),
(4, ''),
(0, ''))))
self.check_bad_tree(tree, "def f():\n return 1\n yield 1")
def test_illegal_yield_2(self):
"""Illegal return in generator: def f(): return 1; yield 1"""
tree = \
(257,
(264,
(265,
(266,
(278,
(1, 'from'),
(281, (1, '__future__')),
(1, 'import'),
(279, (1, 'generators')))),
(4, ''))),
(264,
(285,
(259,
(1, 'def'),
(1, 'f'),
(260, (7, '('), (8, ')')),
(11, ':'),
(291,
(4, ''),
(5, ''),
(264,
(265,
(266,
(272,
(275,
(1, 'return'),
(313,
(292,
(293,
(294,
(295,
(297,
(298,
(299,
(300,
(301,
(302, (303, (304, (305, (2, '1')))))))))))))))))),
(264,
(265,
(266,
(272,
(276,
(1, 'yield'),
(313,
(292,
(293,
(294,
(295,
(297,
(298,
(299,
(300,
(301,
(302,
(303, (304, (305, (2, '1')))))))))))))))))),
(4, ''))),
(6, ''))))),
(4, ''),
(0, ''))))
self.check_bad_tree(tree, "def f():\n return 1\n yield 1")
def test_print_chevron_comma(self):
"Illegal input: print >>fp,"""
"""Illegal input: print >>fp,"""
tree = \
(257,
(264,