import unittest, StringIO, robotparser

from test import test_support

class RobotTestCase(unittest.TestCase):

    def __init__(self, index, parser, url, good, agent):

        unittest.TestCase.__init__(self)

        if good:

            self.str = "RobotTest(%d, good, %s)" % (index, url)

        else:

            self.str = "RobotTest(%d, bad, %s)" % (index, url)

        self.parser = parser

        self.url = url

        self.good = good

        self.agent = agent

    def runTest(self):

        if isinstance(self.url, tuple):

            agent, url = self.url

        else:

            url = self.url

            agent = self.agent

        if self.good:

            self.failUnless(self.parser.can_fetch(agent, url))

        else:

            self.failIf(self.parser.can_fetch(agent, url))

    def __str__(self):

        return self.str

tests = unittest.TestSuite()

def RobotTest(index, robots_txt, good_urls, bad_urls,

              agent="test_robotparser"):

    lines = StringIO.StringIO(robots_txt).readlines()

    parser = robotparser.RobotFileParser()

    parser.parse(lines)

    for url in good_urls:

        tests.addTest(RobotTestCase(index, parser, url, 1, agent))

    for url in bad_urls:

        tests.addTest(RobotTestCase(index, parser, url, 0, agent))

# Examples from http://www.robotstxt.org/wc/norobots.html (fetched 2002)

# 1.

doc = """

User-agent: *

Disallow: /cyberworld/map/ # This is an infinite virtual URL space

Disallow: /tmp/ # these will soon disappear

Disallow: /foo.html

"""

good = ['/','/test.html']

bad = ['/cyberworld/map/index.html','/tmp/xxx','/foo.html']

RobotTest(1, doc, good, bad)

# 2.

doc = """

# robots.txt for http://www.example.com/

User-agent: *

Disallow: /cyberworld/map/ # This is an infinite virtual URL space

# Cybermapper knows where to go.

User-agent: cybermapper

Disallow:

"""

good = ['/','/test.html',('cybermapper','/cyberworld/map/index.html')]

bad = ['/cyberworld/map/index.html']

RobotTest(2, doc, good, bad)

# 3.

doc = """

# go away

User-agent: *

Disallow: /

"""

good = []

bad = ['/cyberworld/map/index.html','/','/tmp/']

RobotTest(3, doc, good, bad)

# Examples from http://www.robotstxt.org/wc/norobots-rfc.html (fetched 2002)

# 4.

doc = """

User-agent: figtree

Disallow: /tmp

Disallow: /a%3cd.html

Disallow: /a%2fb.html

Disallow: /%7ejoe/index.html

"""

good = [] # XFAIL '/a/b.html'

bad = ['/tmp','/tmp.html','/tmp/a.html',

       '/a%3cd.html','/a%3Cd.html','/a%2fb.html',

       '/~joe/index.html'

       ]

RobotTest(4, doc, good, bad, 'figtree')

RobotTest(5, doc, good, bad, 'FigTree Robot libwww-perl/5.04')

# 6.

doc = """

User-agent: *

Disallow: /tmp/

Disallow: /a%3Cd.html

Disallow: /a/b.html

Disallow: /%7ejoe/index.html

"""

good = ['/tmp',] # XFAIL: '/a%2fb.html'

bad = ['/tmp/','/tmp/a.html',

       '/a%3cd.html','/a%3Cd.html',"/a/b.html",

       '/%7Ejoe/index.html']

RobotTest(6, doc, good, bad)

# From bug report #523041

# 7.

doc = """

User-Agent: *

Disallow: /.

"""

good = ['/foo.html']

bad = [] # Bug report says "/" should be denied, but that is not in the RFC

RobotTest(7, doc, good, bad)

class TestCase(unittest.TestCase):

    def runTest(self):

        test_support.requires('network')

        # whole site is password-protected.

        url = 'http://mueblesmoraleda.com'

        parser = robotparser.RobotFileParser()

        parser.set_url(url)

        parser.read()

        self.assertEqual(parser.can_fetch("*", url+"/robots.txt"), False)

def test_main():

    test_support.run_suite(tests)

    TestCase().run()

if __name__=='__main__':

    test_support.Verbose = 1

    test_support.run_suite(tests)