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After recently discovering the Utility Mill, I decided to create an automated tester that would check that the latest revision was still operating according to specifications. It checks the web site once a minute and displays status information as it runs. It is included here because it comes in three sections. The first section has several utility functions that you may find useful in your own applications. The actual test suite is located in the second section. The last section includes code that makes getting random text easy and fast (after an initial loading session). Hopefully, the first portion of the code may be of use to you.

Python, 225 lines
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import urllib.request
import urllib.parse
import xml.dom.minidom

def test_latest(name, **query):
    revision = get_revision(name)
    output = get_output(name, revision, query)
    return output

def get_output(name, revision, query):
    string = run_utility('xml', name, revision, query)
    middle = string.split('<', 1)[1].rsplit('>', 1)[0]
    dom = xml.dom.minidom.parseString('<' + middle + '>')
    value = extract_output(dom)
    dom.unlink()
    return value

def run_utility(api, name, revision, query):
    url = 'http://utilitymill.com/api/{0}/utility/{1}/{2}/run?{3}'
    params = urllib.parse.urlencode(query)
    file = urllib.request.urlopen(url.format(api, name, revision, params))
    # dom = xml.dom.minidom.parse(file)
    return file.read().decode()

def extract_output(dom):
    elements = dom.getElementsByTagName('output')
    assert len(elements) == 1, 'XML Error'
    output = elements[0]
    assert len(output.childNodes) == 1, 'XML Error'
    child = output.childNodes[0]
    assert child.nodeType == child.CDATA_SECTION_NODE, 'XML Error'
    return child.nodeValue

def get_revision(name):
    string = info_utility('xml', name)
    middle = string.split('<', 1)[1].rsplit('>', 1)[0]
    dom = xml.dom.minidom.parseString('<' + middle + '>')
    value = extract_number(dom)
    dom.unlink()
    return value

def info_utility(api, name):
    url = 'http://utilitymill.com/api/{0}/utility/{1}/info'
    file = urllib.request.urlopen(url.format(api, name))
    return file.read().decode()

def extract_number(dom):
    elements = dom.getElementsByTagName('number')
    assert len(elements) == 1, 'XML Error'
    number = elements[0]
    assert len(number.childNodes) == 1, 'XML Error'
    child = number.childNodes[0]
    assert child.nodeType == child.TEXT_NODE, 'XML Error'
    return child.nodeValue

################################################################################

import random
import spice
import time

# Python 2.5 Hack
__builtins__.xrange = __builtins__.range
def hack1(*args):
    return list(xrange(*args))
__builtins__.range = hack1
__builtins__.xmap = __builtins__.map
def hack2(*args):
    return list(xmap(*args))
__builtins__.map = hack2
def _decode(string, map_1, map_2):
    'Private module function.'
    cache = ''
    iterator = iter(string)
    for byte in iterator:
        bits_12 = map_1[ord(byte)] << 6
        bits_34 = map_1[ord(next(iterator))] << 4
        bits_56 = map_1[ord(next(iterator))] << 2
        bits_78 = map_1[ord(next(iterator))]
        cache += map_2[bits_12 + bits_34 + bits_56 + bits_78]
    return cache
spice._decode = _decode
# END

def main():
    try:
        while True:
            print('Testing', end=' ')
            choice = random.randrange(3)
            if choice == 1:
                # Test "Create Keys" Action
                print('Create', end=' ')
                choice = random.randrange(4)
                if choice == 1:
                    # Test No Names
                    print('No Names', end=' ... ')
                    test_create()
                elif choice == 2:
                    # Test Major Name
                    print('Major Name', end=' ... ')
                    n1 = verse()
                    major, minor = test_create(MAJOR_NAME=n1)
                    assert major == spice.named_major(n1)
                elif choice == 3:
                    # Test Minor Name
                    print('Minor Name', end=' ... ')
                    n2 = verse()
                    major, minor = test_create(MINOR_NAME=n2)
                    assert minor == spice.named_minor(n2)
                else:
                    # Test Both Names
                    print('Both Names', end=' ... ')
                    n1, n2 = verse(), verse()
                    major, minor = test_create(MAJOR_NAME=n1, MINOR_NAME=n2)
                    assert major == spice.named_major(n1)
                    assert minor == spice.named_minor(n2)
            elif choice == 2:
                # Test "Encode Input" Action
                print('Encode', end=' ... ')
                major = spice.crypt_major()
                minor = spice.crypt_minor()
                data = verse()
                encoded = test_encode(major, minor, data)
                decoded = spice.decode_string(encoded, major, minor)
                assert decoded == data
            else:
                # Test "Decode Input" Action
                print('Decode', end=' ... ')
                major = spice.crypt_major()
                minor = spice.crypt_minor()
                data = verse()
                encoded = spice.encode_string(data, major, minor)
                decoded = test_decode(major, minor, encoded)
                assert decoded == data
            print('PASS')
            time.sleep(60)
    except:
        print('FAIL')

def test_create(**query):
    output = test_latest('SPICE_Text', ACTION='Create Keys', **query)
    x, x, major, x, x, x, minor = output.split('\n')
    major = hex2bin(major)
    minor = hex2bin(minor)
    spice._check_major(major)
    spice._check_minor(minor)
    return major, minor

def test_encode(major, minor, data):
    hma = bin2hex(major)
    hmi = bin2hex(minor)
    output = test_latest('SPICE_Text', ACTION='Encode Input',
                         MAJOR_KEY=hma, MINOR_KEY=hmi, INPUT=data)
    encoded = hex2bin(output.replace('\r', '').replace('\n', ''))
    return encoded

def test_decode(major, minor, data):
    hma = bin2hex(major)
    hmi = bin2hex(minor)
    hda = bin2hex(data)
    decoded = test_latest('SPICE_Text', ACTION='Decode Input',
                         MAJOR_KEY=hma, MINOR_KEY=hmi, INPUT=hda)
    return decoded

def bin2hex(x):
    return ''.join('%02X' % ord(y) for y in x)

def hex2bin(x):
    return ''.join(chr(int(x[y:y+2], 16)) for y in range(0, len(x), 2))

################################################################################

def verse():
    return random.choice(random.choice(random.choice(BIBLE)))

def load_bible():
    global BIBLE
    try:
        bible = open('bible13.txt', 'r').read()
    except:
        bible = get_bible()
        open('bible13.txt', 'w').write(bible)
    win_fix = bible.replace('\r\n', '\n')
    mac_fix = win_fix.replace('\r', '\n')
    BIBLE = parse_bible(mac_fix)

def get_bible():
    url = 'http://www.gutenberg.org/dirs/etext92/bible13.txt'
    file = urllib.request.urlopen(url)
    return file.read().decode()

def parse_bible(string):
    'Parse Bible and return 3D array.'
    book = chap = vers = 1
    form = '%02u:%03u:%03u'
    book_s, chap_s, vers_s = [], [], []
    start = 0
    while True:
        try:
            start = string.index(form % (book, chap, vers), start) + 11
            end = string.index('\n\n', start)
            vers_s.append(' '.join(string[start:end].replace('\n', '').split()))
            start = end
            vers += 1
        except:
            if vers != 1:
                chap_s.append(vers_s)
                vers_s = []
                chap += 1
                vers = 1
            elif chap != 1:
                book_s.append(chap_s)
                chap_s = []
                book += 1
                chap = 1
            elif book != 1:
                return book_s
            else:
                raise EOFError

################################################################################

if __name__ == '__main__':
    load_bible()
    main()

3 comments

greg p 12 years, 11 months ago  # | flag

neat idea! I should run this for all the utilities someday.

Any chance you could slow it down to say once an hour? The utility popularity ranking algorithm isn't very sophisticated :-(

Stephen Chappell (author) 12 years, 11 months ago  # | flag

The tester has been shutdown. After testing the SPICE algorithm 16,000 times online, encode failed twice, and decode failed twice. That's pretty good considering that they may have been requests rejected by the server.

Would it possible to not count executions initiated through your API, Greg?

Stephen Chappell (author) 12 years, 11 months ago  # | flag

Does anyone know why, when this code is run on Windows, that the file is saved with "\r\r\n" between the lines?

Created by Stephen Chappell on Sun, 28 Dec 2008 (MIT)
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