test of time module. not terribly fancy, but it does touch every

function and variable in the module, verifies a few return values and
even tests a couple of known error conditions.

Lib/test/test_time.py

+import time
+
+time.altzone
+time.clock()
+t = time.time()
+time.asctime(time.gmtime(t))
+if time.ctime(t) <> time.asctime(time.localtime(t)):
+    print 'time.ctime(t) <> time.asctime(time.localtime(t))'
+
+time.daylight
+if int(time.mktime(time.localtime(t))) <> int(t):
+    print 'time.mktime(time.localtime(t)) <> t'
+
+time.sleep(1.2)
+tt = time.gmtime(t)
+for directive in ('a', 'A', 'b', 'B', 'c', 'd', 'E', 'H', 'I',
+		  'j', 'm', 'M', 'n', 'N', 'o', 'p', 'S', 't',
+		  'U', 'w', 'W', 'x', 'X', 'y', 'Y', 'Z', '%'):
+    format = '%' + directive
+    time.strftime(format, tt)
+
+time.timezone
+time.tzname
+
+# expected errors
+try:
+    time.asctime(0)
+except TypeError:
+    pass
+
+try:
+    time.mktime((999999, 999999, 999999, 999999,
+		 999999, 999999, 999999, 999999,
+		 999999))
+except OverflowError:
+    pass