[Python-checkins] CVS: python/dist/src/Lib/test test_parser.py,1.6,1.7
Fred L. Drake
fdrake@users.sourceforge.net
Sun, 03 Jun 2001 20:56:27 -0700
Update of /cvsroot/python/python/dist/src/Lib/test
In directory usw-pr-cvs1:/tmp/cvs-serv25698
Modified Files:
test_parser.py
Log Message:
Convert the parser module test to use PyUnit.
Index: test_parser.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/test/test_parser.py,v
retrieving revision 1.6
retrieving revision 1.7
diff -C2 -r1.6 -r1.7
*** test_parser.py 2001/01/17 21:51:36 1.6
--- test_parser.py 2001/06/04 03:56:24 1.7
***************
*** 1,9 ****
- import os.path
import parser
! import pprint
! import sys
- from test_support import TestFailed
-
#
# First, we test that we can generate trees from valid source fragments,
--- 1,6 ----
import parser
! import test_support
! import unittest
#
# First, we test that we can generate trees from valid source fragments,
***************
*** 12,124 ****
#
! def roundtrip(f, s):
! st1 = f(s)
! t = st1.totuple()
! try:
! st2 = parser.sequence2ast(t)
! except parser.ParserError:
! raise TestFailed, s
!
! def roundtrip_fromfile(filename):
! roundtrip(parser.suite, open(filename).read())
!
! def test_expr(s):
! print "expr:", s
! roundtrip(parser.expr, s)
!
! def test_suite(s):
! print "suite:", s
! roundtrip(parser.suite, s)
!
!
! print "Expressions:"
!
! test_expr("foo(1)")
! test_expr("[1, 2, 3]")
! test_expr("[x**3 for x in range(20)]")
! test_expr("[x**3 for x in range(20) if x % 3]")
! test_expr("foo(*args)")
! test_expr("foo(*args, **kw)")
! test_expr("foo(**kw)")
! test_expr("foo(key=value)")
! test_expr("foo(key=value, *args)")
! test_expr("foo(key=value, *args, **kw)")
! test_expr("foo(key=value, **kw)")
! test_expr("foo(a, b, c, *args)")
! test_expr("foo(a, b, c, *args, **kw)")
! test_expr("foo(a, b, c, **kw)")
! test_expr("foo + bar")
! test_expr("lambda: 0")
! test_expr("lambda x: 0")
! test_expr("lambda *y: 0")
! test_expr("lambda *y, **z: 0")
! test_expr("lambda **z: 0")
! test_expr("lambda x, y: 0")
! test_expr("lambda foo=bar: 0")
! test_expr("lambda foo=bar, spaz=nifty+spit: 0")
! test_expr("lambda foo=bar, **z: 0")
! test_expr("lambda foo=bar, blaz=blat+2, **z: 0")
! test_expr("lambda foo=bar, blaz=blat+2, *y, **z: 0")
! test_expr("lambda x, *y, **z: 0")
!
! print
! print "Statements:"
! test_suite("print")
! test_suite("print 1")
! test_suite("print 1,")
! test_suite("print >>fp")
! test_suite("print >>fp, 1")
! test_suite("print >>fp, 1,")
!
! # expr_stmt
! test_suite("a")
! test_suite("a = b")
! test_suite("a = b = c = d = e")
! test_suite("a += b")
! test_suite("a -= b")
! test_suite("a *= b")
! test_suite("a /= b")
! test_suite("a %= b")
! test_suite("a &= b")
! test_suite("a |= b")
! test_suite("a ^= b")
! test_suite("a <<= b")
! test_suite("a >>= b")
! test_suite("a **= b")
!
! test_suite("def f(): pass")
! test_suite("def f(*args): pass")
! test_suite("def f(*args, **kw): pass")
! test_suite("def f(**kw): pass")
! test_suite("def f(foo=bar): pass")
! test_suite("def f(foo=bar, *args): pass")
! test_suite("def f(foo=bar, *args, **kw): pass")
! test_suite("def f(foo=bar, **kw): pass")
!
! test_suite("def f(a, b): pass")
! test_suite("def f(a, b, *args): pass")
! test_suite("def f(a, b, *args, **kw): pass")
! test_suite("def f(a, b, **kw): pass")
! test_suite("def f(a, b, foo=bar): pass")
! test_suite("def f(a, b, foo=bar, *args): pass")
! test_suite("def f(a, b, foo=bar, *args, **kw): pass")
! test_suite("def f(a, b, foo=bar, **kw): pass")
!
! test_suite("from sys.path import *")
! test_suite("from sys.path import dirname")
! test_suite("from sys.path import dirname as my_dirname")
! test_suite("from sys.path import dirname, basename")
! test_suite("from sys.path import dirname as my_dirname, basename")
! test_suite("from sys.path import dirname, basename as my_basename")
!
! test_suite("import sys")
! test_suite("import sys as system")
! test_suite("import sys, math")
! test_suite("import sys as system, math")
! test_suite("import sys, math as my_math")
!
! #d = os.path.dirname(os.__file__)
! #roundtrip_fromfile(os.path.join(d, "os.py"))
! #roundtrip_fromfile(os.path.join(d, "test", "test_parser.py"))
#
--- 9,123 ----
#
! class RoundtripLegalSyntaxTestCase(unittest.TestCase):
! def roundtrip(self, f, s):
! st1 = f(s)
! t = st1.totuple()
! try:
! st2 = parser.sequence2ast(t)
! except parser.ParserError:
! self.fail("could not roundtrip %r" % s)
!
! self.assertEquals(t, st2.totuple(),
! "could not re-generate syntax tree")
!
! def check_expr(self, s):
! self.roundtrip(parser.expr, s)
!
! def check_suite(self, s):
! self.roundtrip(parser.suite, s)
!
! def test_expressions(self):
! self.check_expr("foo(1)")
! self.check_expr("[1, 2, 3]")
! self.check_expr("[x**3 for x in range(20)]")
! self.check_expr("[x**3 for x in range(20) if x % 3]")
! self.check_expr("foo(*args)")
! self.check_expr("foo(*args, **kw)")
! self.check_expr("foo(**kw)")
! self.check_expr("foo(key=value)")
! self.check_expr("foo(key=value, *args)")
! self.check_expr("foo(key=value, *args, **kw)")
! self.check_expr("foo(key=value, **kw)")
! self.check_expr("foo(a, b, c, *args)")
! self.check_expr("foo(a, b, c, *args, **kw)")
! self.check_expr("foo(a, b, c, **kw)")
! self.check_expr("foo + bar")
! self.check_expr("lambda: 0")
! self.check_expr("lambda x: 0")
! self.check_expr("lambda *y: 0")
! self.check_expr("lambda *y, **z: 0")
! self.check_expr("lambda **z: 0")
! self.check_expr("lambda x, y: 0")
! self.check_expr("lambda foo=bar: 0")
! self.check_expr("lambda foo=bar, spaz=nifty+spit: 0")
! self.check_expr("lambda foo=bar, **z: 0")
! self.check_expr("lambda foo=bar, blaz=blat+2, **z: 0")
! self.check_expr("lambda foo=bar, blaz=blat+2, *y, **z: 0")
! self.check_expr("lambda x, *y, **z: 0")
!
! def test_print(self):
! self.check_suite("print")
! self.check_suite("print 1")
! self.check_suite("print 1,")
! self.check_suite("print >>fp")
! self.check_suite("print >>fp, 1")
! self.check_suite("print >>fp, 1,")
!
! def test_simple_expression(self):
! # expr_stmt
! self.check_suite("a")
!
! def test_simple_assignments(self):
! self.check_suite("a = b")
! self.check_suite("a = b = c = d = e")
!
! def test_simple_augmented_assignments(self):
! self.check_suite("a += b")
! self.check_suite("a -= b")
! self.check_suite("a *= b")
! self.check_suite("a /= b")
! self.check_suite("a %= b")
! self.check_suite("a &= b")
! self.check_suite("a |= b")
! self.check_suite("a ^= b")
! self.check_suite("a <<= b")
! self.check_suite("a >>= b")
! self.check_suite("a **= b")
!
! def test_function_defs(self):
! self.check_suite("def f(): pass")
! self.check_suite("def f(*args): pass")
! self.check_suite("def f(*args, **kw): pass")
! self.check_suite("def f(**kw): pass")
! self.check_suite("def f(foo=bar): pass")
! self.check_suite("def f(foo=bar, *args): pass")
! self.check_suite("def f(foo=bar, *args, **kw): pass")
! self.check_suite("def f(foo=bar, **kw): pass")
!
! self.check_suite("def f(a, b): pass")
! self.check_suite("def f(a, b, *args): pass")
! self.check_suite("def f(a, b, *args, **kw): pass")
! self.check_suite("def f(a, b, **kw): pass")
! self.check_suite("def f(a, b, foo=bar): pass")
! self.check_suite("def f(a, b, foo=bar, *args): pass")
! self.check_suite("def f(a, b, foo=bar, *args, **kw): pass")
! self.check_suite("def f(a, b, foo=bar, **kw): pass")
!
! def test_import_from_statement(self):
! self.check_suite("from sys.path import *")
! self.check_suite("from sys.path import dirname")
! self.check_suite("from sys.path import dirname as my_dirname")
! self.check_suite("from sys.path import dirname, basename")
! self.check_suite(
! "from sys.path import dirname as my_dirname, basename")
! self.check_suite(
! "from sys.path import dirname, basename as my_basename")
!
! def test_basic_import_statement(self):
! self.check_suite("import sys")
! self.check_suite("import sys as system")
! self.check_suite("import sys, math")
! self.check_suite("import sys as system, math")
! self.check_suite("import sys, math as my_math")
#
***************
*** 127,222 ****
#
! print
! print "Invalid parse trees:"
- def check_bad_tree(tree, label):
- print
- print label
- try:
- parser.sequence2ast(tree)
- except parser.ParserError:
- print "caught expected exception for invalid tree"
- else:
- print "test failed: did not properly detect invalid tree:"
- pprint.pprint(tree)
-
-
- # not even remotely valid:
- check_bad_tree((1, 2, 3), "<junk>")
-
- # print >>fp,
- tree = \
- (257,
- (264,
- (265,
- (266,
- (268,
- (1, 'print'),
- (35, '>>'),
- (290,
- (291,
- (292,
- (293,
- (295,
- (296,
- (297,
- (298, (299, (300, (301, (302, (303, (1, 'fp')))))))))))))),
- (12, ','))),
- (4, ''))),
- (0, ''))
-
- check_bad_tree(tree, "print >>fp,")
-
- # a,,c
- tree = \
- (258,
- (311,
- (290,
- (291,
- (292,
- (293,
- (295,
- (296, (297, (298, (299, (300, (301, (302, (303, (1, 'a')))))))))))))),
- (12, ','),
- (12, ','),
- (290,
- (291,
- (292,
- (293,
- (295,
- (296, (297, (298, (299, (300, (301, (302, (303, (1, 'c'))))))))))))))),
- (4, ''),
- (0, ''))
-
- check_bad_tree(tree, "a,,c")
-
- # a $= b
- tree = \
- (257,
- (264,
- (265,
- (266,
- (267,
- (312,
- (291,
- (292,
- (293,
- (294,
- (296,
- (297,
- (298,
- (299, (300, (301, (302, (303, (304, (1, 'a'))))))))))))))),
- (268, (37, '$=')),
- (312,
- (291,
- (292,
- (293,
- (294,
- (296,
- (297,
- (298,
- (299, (300, (301, (302, (303, (304, (1, 'b'))))))))))))))))),
- (4, ''))),
- (0, ''))
! check_bad_tree(tree, "a $= b")
--- 126,226 ----
#
! class IllegalSyntaxTestCase(unittest.TestCase):
! def check_bad_tree(self, tree, label):
! try:
! parser.sequence2ast(tree)
! except parser.ParserError:
! pass
! else:
! self.fail("did not detect invalid tree for %r" % label)
!
! def test_junk(self):
! # not even remotely valid:
! self.check_bad_tree((1, 2, 3), "<junk>")
!
! def test_print_chevron_comma(self):
! "Illegal input: print >>fp,"""
! tree = \
! (257,
! (264,
! (265,
! (266,
! (268,
! (1, 'print'),
! (35, '>>'),
! (290,
! (291,
! (292,
! (293,
! (295,
! (296,
! (297,
! (298, (299, (300, (301, (302, (303, (1, 'fp')))))))))))))),
! (12, ','))),
! (4, ''))),
! (0, ''))
! self.check_bad_tree(tree, "print >>fp,")
!
! def test_a_comma_comma_c(self):
! """Illegal input: a,,c"""
! tree = \
! (258,
! (311,
! (290,
! (291,
! (292,
! (293,
! (295,
! (296,
! (297,
! (298, (299, (300, (301, (302, (303, (1, 'a')))))))))))))),
! (12, ','),
! (12, ','),
! (290,
! (291,
! (292,
! (293,
! (295,
! (296,
! (297,
! (298, (299, (300, (301, (302, (303, (1, 'c'))))))))))))))),
! (4, ''),
! (0, ''))
! self.check_bad_tree(tree, "a,,c")
!
! def test_illegal_operator(self):
! """Illegal input: a $= b"""
! tree = \
! (257,
! (264,
! (265,
! (266,
! (267,
! (312,
! (291,
! (292,
! (293,
! (294,
! (296,
! (297,
! (298,
! (299,
! (300, (301, (302, (303, (304, (1, 'a'))))))))))))))),
! (268, (37, '$=')),
! (312,
! (291,
! (292,
! (293,
! (294,
! (296,
! (297,
! (298,
! (299,
! (300, (301, (302, (303, (304, (1, 'b'))))))))))))))))),
! (4, ''))),
! (0, ''))
! self.check_bad_tree(tree, "a $= b")
! test_support.run_unittest(RoundtripLegalSyntaxTestCase)
! test_support.run_unittest(IllegalSyntaxTestCase)