The usual...
diff --git a/Lib/dos-8x3/test_con.py b/Lib/dos-8x3/test_con.py
new file mode 100644
index 0000000..355135f
--- /dev/null
+++ b/Lib/dos-8x3/test_con.py
@@ -0,0 +1,168 @@
+from test_support import TestFailed
+
+class base_set:
+
+ def __init__(self, el):
+ self.el = el
+
+class set(base_set):
+
+ def __contains__(self, el):
+ return self.el == el
+
+class seq(base_set):
+
+ def __getitem__(self, n):
+ return [self.el][n]
+
+def check(ok, *args):
+ if not ok:
+ raise TestFailed, " ".join(map(str, args))
+
+a = base_set(1)
+b = set(1)
+c = seq(1)
+
+check(1 in b, "1 not in set(1)")
+check(0 not in b, "0 in set(1)")
+check(1 in c, "1 not in seq(1)")
+check(0 not in c, "0 in seq(1)")
+
+try:
+ 1 in a
+ check(0, "in base_set did not raise error")
+except AttributeError:
+ pass
+
+try:
+ 1 not in a
+ check(0, "not in base_set did not raise error")
+except AttributeError:
+ pass
+
+# Test char in string
+
+check('c' in 'abc', "'c' not in 'abc'")
+check('d' not in 'abc', "'d' in 'abc'")
+
+try:
+ '' in 'abc'
+ check(0, "'' in 'abc' did not raise error")
+except TypeError:
+ pass
+
+try:
+ 'ab' in 'abc'
+ check(0, "'ab' in 'abc' did not raise error")
+except TypeError:
+ pass
+
+try:
+ None in 'abc'
+ check(0, "None in 'abc' did not raise error")
+except TypeError:
+ pass
+
+# Test char in Unicode
+
+check('c' in u'abc', "'c' not in u'abc'")
+check('d' not in u'abc', "'d' in u'abc'")
+
+try:
+ '' in u'abc'
+ check(0, "'' in u'abc' did not raise error")
+except TypeError:
+ pass
+
+try:
+ 'ab' in u'abc'
+ check(0, "'ab' in u'abc' did not raise error")
+except TypeError:
+ pass
+
+try:
+ None in u'abc'
+ check(0, "None in u'abc' did not raise error")
+except TypeError:
+ pass
+
+# Test Unicode char in Unicode
+
+check(u'c' in u'abc', "u'c' not in u'abc'")
+check(u'd' not in u'abc', "u'd' in u'abc'")
+
+try:
+ u'' in u'abc'
+ check(0, "u'' in u'abc' did not raise error")
+except TypeError:
+ pass
+
+try:
+ u'ab' in u'abc'
+ check(0, "u'ab' in u'abc' did not raise error")
+except TypeError:
+ pass
+
+# Test Unicode char in string
+
+check(u'c' in 'abc', "u'c' not in 'abc'")
+check(u'd' not in 'abc', "u'd' in 'abc'")
+
+try:
+ u'' in 'abc'
+ check(0, "u'' in 'abc' did not raise error")
+except TypeError:
+ pass
+
+try:
+ u'ab' in 'abc'
+ check(0, "u'ab' in 'abc' did not raise error")
+except TypeError:
+ pass
+
+# A collection of tests on builtin sequence types
+a = range(10)
+for i in a:
+ check(i in a, "%s not in %s" % (`i`, `a`))
+check(16 not in a, "16 not in %s" % `a`)
+check(a not in a, "%s not in %s" % (`a`, `a`))
+
+a = tuple(a)
+for i in a:
+ check(i in a, "%s not in %s" % (`i`, `a`))
+check(16 not in a, "16 not in %s" % `a`)
+check(a not in a, "%s not in %s" % (`a`, `a`))
+
+class Deviant1:
+ """Behaves strangely when compared
+
+ This class is designed to make sure that the contains code
+ works when the list is modified during the check.
+ """
+
+ aList = range(15)
+
+ def __cmp__(self, other):
+ if other == 12:
+ self.aList.remove(12)
+ self.aList.remove(13)
+ self.aList.remove(14)
+ return 1
+
+check(Deviant1() not in Deviant1.aList, "Deviant1 failed")
+
+class Deviant2:
+ """Behaves strangely when compared
+
+ This class raises an exception during comparison. That in
+ turn causes the comparison to fail with a TypeError.
+ """
+
+ def __cmp__(self, other):
+ if other == 4:
+ raise RuntimeError, "gotcha"
+
+try:
+ check(Deviant2() not in a, "oops")
+except TypeError:
+ pass