Test of the pwd module

Lib/test/test_pwd.py

+import pwd
+import string
+
+verbose = 0
+if __name__ == '__main__':
+    verbose = 1
+
+entries = pwd.getpwall()
+
+for e in entries:
+    name = e[0]
+    uid = e[2]
+    if verbose:
+	print name, uid
+    dbuid = pwd.getpwuid(uid)
+    if dbuid[0] <> name:
+	print 'Mismatch in pwd.getpwuid()'
+    dbname = pwd.getpwnam(name)
+    if dbname[2] <> uid:
+	print 'Mismatch in pwd.getpwnam()'
+    break
+
+# try to get some errors
+bynames = {}
+byuids = {}
+for n, p, u, g, gecos, d, s in entries:
+    bynames[n] = u
+    byuids[u] = n
+
+allnames = bynames.keys()
+namei = 0
+fakename = allnames[namei]
+while bynames.has_key(fakename):
+    chars = map(None, fakename)
+    for i in range(len(chars)):
+	if chars[i] == 'z':
+	    chars[i] = 'A'
+	    break
+	elif chars[i] == 'Z':
+	    continue
+	else:
+	    chars[i] = chr(ord(chars[i]) + 1)
+	    break
+    else:
+	namei = namei + 1
+	try:
+	    fakename = allnames[namei]
+	except IndexError:
+	    # should never happen... if so, just forget it
+	    break
+    fakename = string.join(map(None, chars), '')
+    
+try:
+    pwd.getpwnam(fakename)
+except KeyError:
+    pass
+else:
+    print 'fakename', fakename, 'did not except pwd.getpwnam()'
+
+uids = byuids.keys()
+uids.sort()
+uids.reverse()
+fakeuid = uids[0] + 1
+
+try:
+    pwd.getpwuid(fakeuid)
+except KeyError:
+    pass
+else:
+    print 'fakeuid', fakeuid, 'did not except pwd.getpwuid()'