diff options
| -rw-r--r-- | Lib/test/test_richcmp.py | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/Lib/test/test_richcmp.py b/Lib/test/test_richcmp.py index 83cb72b..796e698 100644 --- a/Lib/test/test_richcmp.py +++ b/Lib/test/test_richcmp.py @@ -1,6 +1,6 @@ # Tests for rich comparisons -from test_support import TestFailed, verify +from test_support import TestFailed, verify, verbose class Number: @@ -188,6 +188,46 @@ def misbehavin(): else: raise TestFailed, "cmp(Misb(), Misb()) didn't raise RuntimeError" +def recursion(): + from UserList import UserList + a = UserList(); a.append(a) + b = UserList(); b.append(b) + def check(s, a=a, b=b): + if verbose: + print "trying", s, "..." + verify(eval(s)) + if verbose: + print "recursion tests: a=%s, b=%s" % (a, b) + check('a==b') + check('a<=b') + check('a>=b') + check('not a<b') + check('not a>b') + check('not a!=b') + check('cmp(a,b) == 0') + a.append(1) + b.append(0) + if verbose: + print "recursion tests: a=%s, b=%s" % (a, b) + check('a>b') + check('a>=b') + check('a!=b') + check('not a<b') + check('not a<=b') + check('not a==b') + check('cmp(a,b) == 1') + a[1] = -1 + if verbose: + print "recursion tests: a=%s, b=%s" % (a, b) + check('a<b') + check('a<=b') + check('a!=b') + check('not a>b') + check('not a>=b') + check('not a==b') + check('cmp(a,b) == -1') + if verbose: print "recursion tests ok" + def main(): basic() tabulate() @@ -195,5 +235,6 @@ def main(): tabulate(c2=int) testvector() misbehavin() + recursion() main() |