modules/wsgi/stream-test.py

#!/usr/bin/python
#  Licensed to the Apache Software Foundation (ASF) under one
#  or more contributor license agreements.  See the NOTICE file
#  distributed with this work for additional information
#  regarding copyright ownership.  The ASF licenses this file
#  to you under the Apache License, Version 2.0 (the
#  "License"); you may not use this file except in compliance
#  with the License.  You may obtain a copy of the License at
#  
#    http://www.apache.org/licenses/LICENSE-2.0
#    
#  Unless required by applicable law or agreed to in writing,
#  software distributed under the License is distributed on an
#  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
#  KIND, either express or implied.  See the License for the
#  specific language governing permissions and limitations
#  under the License.

# Test stream functions

import unittest
from util import *

def testStream():

    s = cons_stream(0, lambda: cons_stream(1, lambda: cons(2, ())))
    assert len(s) == 3
    assert car(s) == 0
    assert cadr(s) == 1
    assert len(cdr(s)) == 2
    assert s[0] == 0
    assert s[1] == 1
    assert s[2] == 2
    assert s[:1] == (0, 1)
    assert s[:5] == (0, 1, 2)
    assert s[2:5] == (2,)
    assert s[4:5] == ()
    assert s[0:] == (0, 1, 2)
    assert (0, 1, 2) == s[0:]

    return True

if __name__ == "__main__":
    print "Testing..."
    testStream()
    print "OK"