path: root/tests/tests.py

# Test cases for Cobbler
#
# Michael DeHaan <mdehaan@redhat.com>

TRY_GRAPH = False
HAS_GRAPH = False

if TRY_GRAPH:
   try:
      import pycallgraph_mod as pycallgraph
      HAS_GRAPH = True
   except:
      pass

import sys
import unittest
import os
import subprocess
import tempfile
import shutil

from cobbler.cexceptions import *  

from cobbler import settings
from cobbler import collection_distros
from cobbler import collection_profiles
from cobbler import collection_systems

from cobbler import api

from cobbler import config
from cobbler import utils
utils.TEST_MODE = True

FAKE_INITRD="initrd-2.6.15-1.2054_FAKE.img"
FAKE_INITRD2="initrd-2.5.16-2.2055_FAKE.img"
FAKE_INITRD3="initrd-1.8.18-3.9999_FAKE.img"
FAKE_KERNEL="vmlinuz-2.6.15-1.2054_FAKE"
FAKE_KERNEL2="vmlinuz-2.5.16-2.2055_FAKE"
FAKE_KERNEL3="vmlinuz-1.8.18-3.9999_FAKE"
FAKE_KICKSTART="http://127.0.0.1/fake.ks"

cleanup_dirs = []

class BootTest(unittest.TestCase):

    def setUp(self):


        # Create temp dir
        self.topdir = "/tmp/cobbler_test"
        os.makedirs(self.topdir)

        self.fk_initrd = os.path.join(self.topdir, FAKE_INITRD)
        self.fk_initrd2 = os.path.join(self.topdir, FAKE_INITRD2)
        self.fk_initrd3 = os.path.join(self.topdir, FAKE_INITRD3)

        self.fk_kernel = os.path.join(self.topdir, FAKE_KERNEL)
        self.fk_kernel2 = os.path.join(self.topdir, FAKE_KERNEL2)
        self.fk_kernel3 = os.path.join(self.topdir, FAKE_KERNEL3)

        self.api = api.BootAPI()
        create = [ self.fk_initrd, self.fk_initrd2, self.fk_initrd3,
                self.fk_kernel, self.fk_kernel2, self.fk_kernel3 ]
        for fn in create:
            f = open(fn,"w+")
            f.close()
        self.make_basic_config()

    def tearDown(self):
        # only off during refactoring, fix later
        shutil.rmtree(self.topdir,ignore_errors=True)
        self.api = None

        if HAS_GRAPH:
            pycallgraph.save_dot("%s.dot" % self.__class__.__name__)

    def make_basic_config(self):
        distro = self.api.new_distro()
        self.assertTrue(distro.set_name("testdistro0"))
        self.assertTrue(distro.set_kernel(self.fk_kernel))
        self.assertTrue(distro.set_initrd(self.fk_initrd))
        self.assertTrue(self.api.distros().add(distro))
        self.assertTrue(self.api.distros().find(name="testdistro0"))

        profile = self.api.new_profile()
        self.assertTrue(profile.set_name("testprofile0"))
        self.assertTrue(profile.set_distro("testdistro0"))
        self.assertTrue(profile.set_kickstart(FAKE_KICKSTART))
        self.assertTrue(self.api.profiles().add(profile))
        self.assertTrue(self.api.profiles().find(name="testprofile0"))

        system = self.api.new_system()
        self.assertTrue(system.set_name("drwily.rdu.redhat.com"))
        self.assertTrue(system.set_mac_address("BB:EE:EE:EE:EE:FF","intf0"))
        self.assertTrue(system.set_profile("testprofile0"))
        self.assertTrue(self.api.systems().add(system))
        self.assertTrue(self.api.systems().find(name="drwily.rdu.redhat.com"))

class MultiNIC(BootTest):
    
    def test_multi_nic_support(self):


        system = self.api.new_system()
        self.assertTrue(system.set_name("nictest"))
        self.assertTrue(system.set_profile("testprofile0"))
        self.assertTrue(system.set_hostname("zero","intf0"))
        self.assertTrue(system.set_mac_address("EE:FF:DD:CC:DD:CC","intf1"))
        self.assertTrue(system.set_ip_address("127.0.0.5","intf2"))
        self.assertTrue(system.set_dhcp_tag("zero","intf3"))
        self.assertTrue(system.set_virt_bridge("zero","intf4"))
        self.assertTrue(system.set_gateway("192.168.1.25","intf4"))
        self.assertTrue(system.set_mac_address("AA:AA:BB:BB:CC:CC","intf4"))
        self.assertTrue(system.set_hostname("fooserver","intf4"))
        self.assertTrue(system.set_dhcp_tag("red","intf4"))
        self.assertTrue(system.set_ip_address("192.168.1.26","intf4"))
        self.assertTrue(system.set_subnet("255.255.255.0","intf4"))
        self.assertTrue(system.set_dhcp_tag("tag2","intf5"))
        self.assertTrue(self.api.systems().add(system))
        self.assertTrue(self.api.systems().find(hostname="zero"))
        self.assertTrue(self.api.systems().find(mac_address="EE:FF:DD:CC:DD:CC"))
        self.assertTrue(self.api.systems().find(ip_address="127.0.0.5"))
        self.assertTrue(self.api.systems().find(virt_bridge="zero"))
        self.assertTrue(self.api.systems().find(gateway="192.168.1.25"))
        self.assertTrue(self.api.systems().find(subnet="255.255.255.0"))
        self.assertTrue(self.api.systems().find(dhcp_tag="tag2"))
        self.assertTrue(self.api.systems().find(dhcp_tag="zero"))

        # verify that systems has exactly 5 interfaces
        self.assertTrue(len(system.interfaces.keys()) == 6)

        # now check one interface to make sure it's exactly right
        # and we didn't accidentally fill in any other fields elsewhere

        self.assertTrue(system.interfaces.has_key("intf4"))
        for (name,intf) in system.interfaces.iteritems():
            if name == "intf4": # xmlrpc dicts must have string keys, so we must also
                self.assertTrue(intf["gateway"] == "192.168.1.25")
                self.assertTrue(intf["virt_bridge"] == "zero")
                self.assertTrue(intf["subnet"] == "255.255.255.0")
                self.assertTrue(intf["mac_address"] == "AA:AA:BB:BB:CC:CC")
                self.assertTrue(intf["ip_address"] == "192.168.1.26")
                self.assertTrue(intf["hostname"] == "fooserver")
                self.assertTrue(intf["dhcp_tag"] == "red")
 
class Utilities(BootTest):

    def _expeq(self, expected, actual):
        try:
            self.failUnlessEqual(expected, actual,
                "Expected: %s; actual: %s" % (expected, actual))
        except:
            self.fail("exception during failUnlessEqual")

    def test_kernel_scan(self):
        self.assertTrue(utils.find_kernel(self.fk_kernel))
        self.assertFalse(utils.find_kernel("filedoesnotexist"))
        self._expeq(self.fk_kernel, utils.find_kernel(self.topdir))

    def test_initrd_scan(self):
        self.assertTrue(utils.find_initrd(self.fk_initrd))
        self.assertFalse(utils.find_initrd("filedoesnotexist"))
        self._expeq(self.fk_initrd, utils.find_initrd(self.topdir))

    def test_kickstart_scan(self):
        # we don't check to see if kickstart files look like anything
        # so this will pass
        self.assertTrue(utils.find_kickstart("filedoesnotexist") is None)
        self.assertTrue(utils.find_kickstart(self.topdir) == None)
        self.assertTrue(utils.find_kickstart("http://bar"))
        self.assertTrue(utils.find_kickstart("ftp://bar"))
        self.assertTrue(utils.find_kickstart("nfs://bar"))
        self.assertFalse(utils.find_kickstart("gopher://bar"))

    def test_matching(self):
        self.assertTrue(utils.is_mac("00:C0:B7:7E:55:50"))
        self.assertTrue(utils.is_mac("00:c0:b7:7E:55:50"))
        self.assertFalse(utils.is_mac("00.D0.B7.7E.55.50"))
        self.assertFalse(utils.is_mac("drwily.rdu.redhat.com"))
        self.assertTrue(utils.is_ip("127.0.0.1"))
        self.assertTrue(utils.is_ip("192.168.1.1"))
        self.assertFalse(utils.is_ip("00:C0:B7:7E:55:50"))
        self.assertFalse(utils.is_ip("drwily.rdu.redhat.com"))

    def test_some_random_find_commands(self):
        # initial setup...
        self.test_system_name_is_a_MAC()
        # search for a parameter that isn't real, want an error
        self.failUnlessRaises(CobblerException,self.api.systems().find, pond="mcelligots")

        # verify that even though we have several different NICs search still works
        self.assertTrue(self.api.systems().find(name="nictest"))

        # search for a parameter with a bad value, want None
        self.assertFalse(self.api.systems().find(name="horton"))
        # one valid parameter another invalid is still an error
        self.failUnlessRaises(CobblerException,self.api.systems().find, name="onefish",pond="mcelligots")
        # searching with no args is ALSO an error
        self.failUnlessRaises(CobblerException, self.api.systems().find)
        # searching for a list returns a list of correct length
        self.assertTrue(len(self.api.systems().find(mac_address="00:16:41:14:B7:71",return_list=True))==1)
        # make sure we can still search without an explicit keyword arg
        self.assertTrue(len(self.api.systems().find("00:16:41:14:B7:71",return_list=True))==1)
        self.assertTrue(self.api.systems().find("00:16:41:14:B7:71"))

    def test_invalid_distro_non_referenced_kernel(self):
        distro = self.api.new_distro()
        self.assertTrue(distro.set_name("testdistro2"))
        self.failUnlessRaises(CobblerException,distro.set_kernel,"filedoesntexist")
        self.assertTrue(distro.set_initrd(self.fk_initrd))
        self.failUnlessRaises(CobblerException, self.api.distros().add, distro)
        self.assertFalse(self.api.distros().find(name="testdistro2"))

    def test_invalid_distro_non_referenced_initrd(self):
        distro = self.api.new_distro()
        self.assertTrue(distro.set_name("testdistro3"))
        self.assertTrue(distro.set_kernel(self.fk_kernel))
        self.failUnlessRaises(CobblerException, distro.set_initrd, "filedoesntexist")
        self.failUnlessRaises(CobblerException, self.api.distros().add, distro)
        self.assertFalse(self.api.distros().find(name="testdistro3"))

    def test_invalid_profile_non_referenced_distro(self):
        profile = self.api.new_profile()
        self.assertTrue(profile.set_name("testprofile11"))
        self.failUnlessRaises(CobblerException, profile.set_distro, "distrodoesntexist")
        self.assertTrue(profile.set_kickstart(FAKE_KICKSTART))
        self.failUnlessRaises(CobblerException, self.api.profiles().add, profile)
        self.assertFalse(self.api.profiles().find(name="testprofile2"))

    def test_invalid_profile_kickstart_not_url(self):
        profile = self.api.new_profile()
        self.assertTrue(profile.set_name("testprofile12"))
        self.assertTrue(profile.set_distro("testdistro0"))
        self.failUnlessRaises(CobblerException, profile.set_kickstart, "kickstartdoesntexist")
        # since kickstarts are optional, you can still add it
        self.assertTrue(self.api.profiles().add(profile))
        self.assertTrue(self.api.profiles().find(name="testprofile12"))
        # now verify the other kickstart forms would still work
        self.assertTrue(profile.set_kickstart("http://bar"))
        self.assertTrue(profile.set_kickstart("ftp://bar"))
        self.assertTrue(profile.set_kickstart("nfs://bar"))

    def test_profile_virt_parameter_checking(self):
        profile = self.api.new_profile()
        self.assertTrue(profile.set_name("testprofile12b"))
        self.assertTrue(profile.set_distro("testdistro0"))
        self.assertTrue(profile.set_kickstart("http://127.0.0.1/foo"))
        self.assertTrue(profile.set_virt_bridge("xenbr1"))
        # sizes must be integers
        self.assertTrue(profile.set_virt_file_size("54321"))
        self.failUnlessRaises(Exception, profile.set_virt_file_size, "huge")
        self.failUnlessRaises(Exception, profile.set_virt_file_size, "54.321")
        # cpus must be integers
        self.assertTrue(profile.set_virt_cpus("2"))
        self.failUnlessRaises(Exception, profile.set_virt_cpus, "3.14")
        self.failUnlessRaises(Exception, profile.set_virt_cpus, "6.02*10^23")
        self.assertTrue(self.api.profiles().add(profile))

    def test_inheritance_and_variable_propogation(self):

        # STEP ONE: verify that non-inherited objects behave
        # correctly with ks_meta (we picked this attribute
        # because it's a hash and it's a bit harder to handle
        # than strings).  It should be passed down the render
        # tree to all subnodes

        repo = self.api.new_repo()
        try:
            os.makedirs("/tmp/test_cobbler_repo")
        except:
            pass
        fd = open("/tmp/test_cobbler_repo/test.file", "w+")
        fd.write("hello!")
        fd.close()
        self.assertTrue(repo.set_name("testrepo"))
        self.assertTrue(repo.set_mirror("/tmp/test_cobbler_repo"))
        self.assertTrue(self.api.repos().add(repo))

        profile = self.api.new_profile()
        self.assertTrue(profile.set_name("testprofile12b2"))
        self.assertTrue(profile.set_distro("testdistro0"))
        self.assertTrue(profile.set_kickstart("http://127.0.0.1/foo"))
        self.assertTrue(profile.set_repos(["testrepo"]))
        self.assertTrue(self.api.profiles().add(profile))
        self.api.reposync()
        self.api.sync()
        system = self.api.new_system()
        self.assertTrue(system.set_name("foo"))
        self.assertTrue(system.set_profile("testprofile12b2"))
        self.assertTrue(system.set_ksmeta({"asdf" : "jkl" }))
        self.assertTrue(self.api.systems().add(system))
        profile = self.api.profiles().find("testprofile12b2")
        ksmeta = profile.ks_meta
        self.assertFalse(ksmeta.has_key("asdf"))

        # FIXME: do the same for inherited profiles
        # now verify the same for an inherited profile
        # and this time walk up the tree to verify it wasn't
        # applied to any other object except the base.

        profile2 = self.api.new_profile(is_subobject=True)
        profile2.set_name("testprofile12b3")
        profile2.set_parent("testprofile12b2")
        self.assertTrue(self.api.profiles().add(profile2))
        self.api.reposync()
        self.api.sync()

        # FIXME: now add a system to the inherited profile
        # and set a attribute on it that we will later check for

        system2 = self.api.new_system()
        self.assertTrue(system2.set_name("foo2"))
        self.assertTrue(system2.set_profile("testprofile12b3"))
        self.assertTrue(system2.set_ksmeta({"narf" : "troz"}))
        self.assertTrue(self.api.systems().add(system2))
        self.api.reposync()
        self.api.sync()

        # FIXME: now evaluate the system object and make sure  
        # that it has inherited the repos value from the superprofile
        # above it's actual profile.  This should NOT be present in the
        # actual object, which we have not modified yet.

        data = utils.blender(self.api, False, system2)
        self.assertTrue(data["repos"] == ["testrepo"])
        self.assertTrue(self.api.profiles().find(system2.profile).repos == "<<inherit>>")

        # now if we set the repos object of the system to an additional
        # repo we should verify it now contains two repos.
        # (FIXME)
        
        repo2 = self.api.new_repo()
        try:
           os.makedirs("/tmp/cobbler_test_repo")
        except:
           pass
        fd = open("/tmp/cobbler_test_repo/file.test","w+")
        fd.write("Hi!")
        fd.close()
        self.assertTrue(repo2.set_name("testrepo2"))
        self.assertTrue(repo2.set_mirror("/tmp/cobbler_test_repo"))
        self.assertTrue(self.api.repos().add(repo2))
        profile2 = self.api.profiles().find("testprofile12b3")
        # note: side check to make sure we can also set to string values
        profile2.set_repos("testrepo2")       
        self.api.profiles().add(profile2) # save it 

        # random bug testing: run sync several times and ensure cardinality doesn't change
        self.api.reposync()
        self.api.sync()
        self.api.sync()
        self.api.sync()

        data = utils.blender(self.api, False, system2)
        self.assertTrue("testrepo" in data["repos"])
        self.assertTrue("testrepo2" in data["repos"])
        self.assertTrue(len(data["repos"]) == 2)
        self.assertTrue(self.api.profiles().find(system2.profile).repos == ["testrepo2"])

        # now double check that the parent profile still only has one repo in it.
        # this is part of our test against upward propogation

        profile = self.api.profiles().find("testprofile12b2")
        self.assertTrue(len(profile.repos) == 1)
        self.assertTrue(profile.repos == ["testrepo"])

        # now see if the subprofile does NOT have the ksmeta attribute
        # this is part of our test against upward propogation

        profile2 = self.api.profiles().find("testprofile12b3")
        self.assertTrue(type(profile2.ks_meta) == type(""))
        self.assertTrue(profile2.ks_meta == "<<inherit>>")

        # now see if the profile above this profile still doesn't have it

        profile = self.api.profiles().find("testprofile12b2")
        self.assertTrue(type(profile.ks_meta) == type({}))
        self.api.reposync()
        self.api.sync()
        self.assertFalse(profile.ks_meta.has_key("narf"), "profile does not have the system ksmeta")

        self.api.reposync()
        self.api.sync()

        # verify that the distro did not acquire the property
        # we just set on the leaf system
        distro = self.api.distros().find("testdistro0")
        self.assertTrue(type(distro.ks_meta) == type({}))
        self.assertFalse(distro.ks_meta.has_key("narf"), "distro does not have the system ksmeta")

        # STEP THREE: verify that inheritance appears to work    
        # by setting ks_meta on the subprofile and seeing
        # if it appears on the leaf system ... must use
        # blender functions

        profile2 = self.api.profiles().find("testprofile12b3")
        profile2.set_ksmeta({"canyouseethis" : "yes" })
        self.assertTrue(self.api.profiles().add(profile2))
        system2 = self.api.systems().find("foo2")
        data = utils.blender(self.api, False, system2)
        self.assertTrue(data.has_key("ks_meta"))
        self.assertTrue(data["ks_meta"].has_key("canyouseethis"))
        
        # STEP FOUR: do the same on the superprofile and see
        # if that propogates
        
        profile = self.api.profiles().find("testprofile12b2")
        profile.set_ksmeta({"canyouseethisalso" : "yes" })
        self.assertTrue(self.api.profiles().add(profile))
        system2 = self.api.systems().find("foo2")
        data = utils.blender(self.api, False, system2)
        self.assertTrue(data.has_key("ks_meta"))
        self.assertTrue(data["ks_meta"].has_key("canyouseethisalso"))

        # STEP FIVE: see if distro attributes propogate

        distro = self.api.distros().find("testdistro0")
        distro.set_ksmeta({"alsoalsowik" : "moose" })
        self.assertTrue(self.api.distros().add(distro))
        system2 = self.api.systems().find("foo2")
        data = utils.blender(self.api, False, system2)
        self.assertTrue(data.has_key("ks_meta"))
        self.assertTrue(data["ks_meta"].has_key("alsoalsowik"))
        
        


        # STEP SEVEN:  see if settings changes also propogate
        # TBA 

    def test_system_name_is_a_MAC(self):
        system = self.api.new_system()
        name = "00:16:41:14:B7:71"
        self.assertTrue(system.set_name(name))
        self.assertTrue(system.set_profile("testprofile0"))
        self.assertTrue(self.api.systems().add(system))
        self.assertTrue(self.api.systems().find(name=name))
        self.assertTrue(self.api.systems().find(mac_address="00:16:41:14:B7:71"))
        self.assertFalse(self.api.systems().find(mac_address="thisisnotamac"))

    def test_system_name_is_an_IP(self):
        system = self.api.new_system()
        name = "192.168.1.54"
        self.assertTrue(system.set_name(name))
        self.assertTrue(system.set_profile("testprofile0"))
        self.assertTrue(self.api.systems().add(system))
        self.assertTrue(self.api.systems().find(name=name))

    def test_invalid_system_non_referenced_profile(self):
        system = self.api.new_system()
        self.assertTrue(system.set_name("drwily.rdu.redhat.com"))
        self.failUnlessRaises(CobblerException, system.set_profile, "profiledoesntexist")
        self.failUnlessRaises(CobblerException, self.api.systems().add, system)

class SyncContents(BootTest):

    def test_blender_cache_works(self):

        # this is just a file that exists that we don't have to create
        fake_file = "/etc/hosts"

        distro = self.api.new_distro()
        self.assertTrue(distro.set_name("D1"))
        self.assertTrue(distro.set_kernel(fake_file))
        self.assertTrue(distro.set_initrd(fake_file))
        self.assertTrue(self.api.distros().add(distro, with_copy=True))
        self.assertTrue(self.api.distros().find(name="D1"))

        profile = self.api.new_profile()
        self.assertTrue(profile.set_name("P1"))
        self.assertTrue(profile.set_distro("D1"))
        self.assertTrue(profile.set_kickstart(fake_file))
        self.assertTrue(self.api.profiles().add(profile, with_copy=True))
        self.assertTrue(self.api.profiles().find(name="P1"))

        system = self.api.new_system()
        self.assertTrue(system.set_name("S1"))
        self.assertTrue(system.set_mac_address("BB:EE:EE:EE:EE:FF","intf0"))
        self.assertTrue(system.set_profile("P1"))
        self.assertTrue(self.api.systems().add(system, with_copy=True))
        self.assertTrue(self.api.systems().find(name="S1"))

        # ensure that the system after being added has the right template data
        # in /tftpboot

        converted="01-bb-ee-ee-ee-ee-ff"

        fh = open("/tftpboot/pxelinux.cfg/%s" % converted)
        data = fh.read()
        self.assertTrue(data.find("kickstarts_sys") != -1)
        fh.close()

        # ensure that after sync is applied, the blender cache still allows
        # the system data to persist over the profile data in /tftpboot
        # (which was an error we had in 0.6.3)

        self.api.sync()
        fh = open("/tftpboot/pxelinux.cfg/%s" % converted)
        data = fh.read()
        self.assertTrue(data.find("kickstarts_sys") != -1)
        fh.close()


class Deletions(BootTest):

    def test_invalid_delete_profile_doesnt_exist(self):
        self.failUnlessRaises(CobblerException, self.api.profiles().remove, "doesnotexist")

    def test_invalid_delete_profile_would_orphan_systems(self):
        self.make_basic_config()
        self.failUnlessRaises(CobblerException, self.api.profiles().remove, "testprofile0")

    def test_invalid_delete_system_doesnt_exist(self):
        self.failUnlessRaises(CobblerException, self.api.systems().remove, "doesnotexist")

    def test_invalid_delete_distro_doesnt_exist(self):
        self.failUnlessRaises(CobblerException, self.api.distros().remove, "doesnotexist")

    def test_invalid_delete_distro_would_orphan_profile(self):
        self.make_basic_config()
        self.failUnlessRaises(CobblerException, self.api.distros().remove, "testdistro0")

    def test_working_deletes(self):
        self.api.clear()
        self.make_basic_config()
        self.assertTrue(self.api.systems().remove("drwily.rdu.redhat.com"))
        self.api.serialize()
        self.assertTrue(self.api.profiles().remove("testprofile0"))
        self.assertTrue(self.api.distros().remove("testdistro0"))
        self.assertFalse(self.api.systems().find(name="drwily.rdu.redhat.com"))
        self.assertFalse(self.api.profiles().find(name="testprofile0"))
        self.assertFalse(self.api.distros().find(name="testdistro0"))

class TestCheck(BootTest):

   def test_check(self):
       # we can't know if it's supposed to fail in advance
       # (ain't that the halting problem), but it shouldn't ever
       # throw exceptions.
       self.api.check()

class TestSync(BootTest):

   def test_real_run(self):
       # syncing a real test run in an automated environment would
       # break a valid cobbler configuration, so we're not going to
       # test this here.
       pass

class TestListings(BootTest):

   def test_listings(self):
       # check to see if the collection listings output something.
       # this is a minimal check, mainly for coverage, not validity
       self.make_basic_config()
       self.assertTrue(len(self.api.systems().printable()) > 0)
       self.assertTrue(len(self.api.profiles().printable()) > 0)
       self.assertTrue(len(self.api.distros().printable()) > 0)

class TestCLIBasic(BootTest):

   def test_cli(self):
       # just invoke the CLI to increase coverage and ensure
       # nothing major is broke at top level.  Full CLI command testing
       # is not included (yet) since the API tests hit that fairly throughly
       # and it would easily double the length of the tests.
       app = "/usr/bin/python"
       self.assertTrue(subprocess.call([app,"cobbler/cobbler.py","list"]) == 0)

if __name__ == "__main__":
    if not os.path.exists("setup.py"):
        print "tests: must invoke from top level directory"
        sys.exit(1)
    if HAS_GRAPH:
       pycallgraph.start_trace()
    loader = unittest.defaultTestLoader
    test_module = __import__("tests")  # self import considered harmful?
    tests = loader.loadTestsFromModule(test_module)
    runner = unittest.TextTestRunner()
    runner.run(tests)
    if HAS_GRAPH:
        pycallgraph.make_graph('cg_dot.png', tool='dot')
    sys.exit(0)