blob: f906095b278daf15eef132909df277b5799c55a4 [file] [log] [blame]
# Copyright 2015 Red Hat, Inc.
#
# Licensed 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.
import os
import random
import fixtures
import testtools
import yaml
from zuul import model
from zuul import configloader
from zuul.lib import encryption
from tests.base import BaseTestCase, FIXTURE_DIR
class FakeSource(object):
def __init__(self, name):
self.name = name
class TestJob(BaseTestCase):
def setUp(self):
super(TestJob, self).setUp()
self.tenant = model.Tenant('tenant')
self.layout = model.Layout()
self.project = model.Project('project', 'connection')
self.source = FakeSource('connection')
self.tenant.addProjectRepo(self.source, self.project)
self.pipeline = model.Pipeline('gate', self.layout)
self.layout.addPipeline(self.pipeline)
self.queue = model.ChangeQueue(self.pipeline)
private_key_file = os.path.join(FIXTURE_DIR, 'private.pem')
with open(private_key_file, "rb") as f:
self.project.private_key, self.project.public_key = \
encryption.deserialize_rsa_keypair(f.read())
self.context = model.SourceContext(self.project, 'master',
'test', True)
self.start_mark = yaml.Mark('name', 0, 0, 0, '', 0)
@property
def job(self):
tenant = model.Tenant('tenant')
layout = model.Layout()
job = configloader.JobParser.fromYaml(tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'job',
'irrelevant-files': [
'^docs/.*$'
]})
return job
def test_change_matches_returns_false_for_matched_skip_if(self):
change = model.Change('project')
change.files = ['/COMMIT_MSG', 'docs/foo']
self.assertFalse(self.job.changeMatches(change))
def test_change_matches_returns_true_for_unmatched_skip_if(self):
change = model.Change('project')
change.files = ['/COMMIT_MSG', 'foo']
self.assertTrue(self.job.changeMatches(change))
def test_job_sets_defaults_for_boolean_attributes(self):
self.assertIsNotNone(self.job.voting)
def test_job_inheritance(self):
# This is standard job inheritance.
base_pre = model.PlaybookContext(self.context, 'base-pre')
base_run = model.PlaybookContext(self.context, 'base-run')
base_post = model.PlaybookContext(self.context, 'base-post')
base = model.Job('base')
base.timeout = 30
base.pre_run = [base_pre]
base.run = [base_run]
base.post_run = [base_post]
base.auth = model.AuthContext()
py27 = model.Job('py27')
self.assertEqual(None, py27.timeout)
py27.inheritFrom(base)
self.assertEqual(30, py27.timeout)
self.assertEqual(['base-pre'],
[x.path for x in py27.pre_run])
self.assertEqual(['base-run'],
[x.path for x in py27.run])
self.assertEqual(['base-post'],
[x.path for x in py27.post_run])
self.assertEqual(None, py27.auth)
def test_job_variants(self):
# This simulates freezing a job.
py27_pre = model.PlaybookContext(self.context, 'py27-pre')
py27_run = model.PlaybookContext(self.context, 'py27-run')
py27_post = model.PlaybookContext(self.context, 'py27-post')
py27 = model.Job('py27')
py27.timeout = 30
py27.pre_run = [py27_pre]
py27.run = [py27_run]
py27.post_run = [py27_post]
auth = model.AuthContext()
auth.secrets.append('foo')
py27.auth = auth
job = py27.copy()
self.assertEqual(30, job.timeout)
# Apply the diablo variant
diablo = model.Job('py27')
diablo.timeout = 40
job.applyVariant(diablo)
self.assertEqual(40, job.timeout)
self.assertEqual(['py27-pre'],
[x.path for x in job.pre_run])
self.assertEqual(['py27-run'],
[x.path for x in job.run])
self.assertEqual(['py27-post'],
[x.path for x in job.post_run])
self.assertEqual(auth, job.auth)
# Set the job to final for the following checks
job.final = True
self.assertTrue(job.voting)
good_final = model.Job('py27')
good_final.voting = False
job.applyVariant(good_final)
self.assertFalse(job.voting)
bad_final = model.Job('py27')
bad_final.timeout = 600
with testtools.ExpectedException(
Exception,
"Unable to modify final job"):
job.applyVariant(bad_final)
def test_job_inheritance_configloader(self):
# TODO(jeblair): move this to a configloader test
tenant = model.Tenant('tenant')
layout = model.Layout()
pipeline = model.Pipeline('gate', layout)
layout.addPipeline(pipeline)
queue = model.ChangeQueue(pipeline)
project = model.Project('project', None)
base = configloader.JobParser.fromYaml(tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'base',
'timeout': 30,
'pre-run': 'base-pre',
'post-run': 'base-post',
'nodes': [{
'name': 'controller',
'image': 'base',
}],
})
layout.addJob(base)
python27 = configloader.JobParser.fromYaml(tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'python27',
'parent': 'base',
'pre-run': 'py27-pre',
'post-run': 'py27-post',
'nodes': [{
'name': 'controller',
'image': 'new',
}],
'timeout': 40,
})
layout.addJob(python27)
python27diablo = configloader.JobParser.fromYaml(tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'python27',
'branches': [
'stable/diablo'
],
'pre-run': 'py27-diablo-pre',
'run': 'py27-diablo',
'post-run': 'py27-diablo-post',
'nodes': [{
'name': 'controller',
'image': 'old',
}],
'timeout': 50,
})
layout.addJob(python27diablo)
python27essex = configloader.JobParser.fromYaml(tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'python27',
'branches': [
'stable/essex'
],
'pre-run': 'py27-essex-pre',
'post-run': 'py27-essex-post',
})
layout.addJob(python27essex)
project_config = configloader.ProjectParser.fromYaml(tenant, layout, [{
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'project',
'gate': {
'jobs': [
'python27'
]
}
}])
layout.addProjectConfig(project_config)
change = model.Change(project)
# Test master
change.branch = 'master'
item = queue.enqueueChange(change)
item.current_build_set.layout = layout
self.assertTrue(base.changeMatches(change))
self.assertTrue(python27.changeMatches(change))
self.assertFalse(python27diablo.changeMatches(change))
self.assertFalse(python27essex.changeMatches(change))
item.freezeJobGraph()
self.assertEqual(len(item.getJobs()), 1)
job = item.getJobs()[0]
self.assertEqual(job.name, 'python27')
self.assertEqual(job.timeout, 40)
nodes = job.nodeset.getNodes()
self.assertEqual(len(nodes), 1)
self.assertEqual(nodes[0].image, 'new')
self.assertEqual([x.path for x in job.pre_run],
['playbooks/base-pre',
'playbooks/py27-pre'])
self.assertEqual([x.path for x in job.post_run],
['playbooks/py27-post',
'playbooks/base-post'])
self.assertEqual([x.path for x in job.run],
['playbooks/python27',
'playbooks/base'])
# Test diablo
change.branch = 'stable/diablo'
item = queue.enqueueChange(change)
item.current_build_set.layout = layout
self.assertTrue(base.changeMatches(change))
self.assertTrue(python27.changeMatches(change))
self.assertTrue(python27diablo.changeMatches(change))
self.assertFalse(python27essex.changeMatches(change))
item.freezeJobGraph()
self.assertEqual(len(item.getJobs()), 1)
job = item.getJobs()[0]
self.assertEqual(job.name, 'python27')
self.assertEqual(job.timeout, 50)
nodes = job.nodeset.getNodes()
self.assertEqual(len(nodes), 1)
self.assertEqual(nodes[0].image, 'old')
self.assertEqual([x.path for x in job.pre_run],
['playbooks/base-pre',
'playbooks/py27-pre',
'playbooks/py27-diablo-pre'])
self.assertEqual([x.path for x in job.post_run],
['playbooks/py27-diablo-post',
'playbooks/py27-post',
'playbooks/base-post'])
self.assertEqual([x.path for x in job.run],
['playbooks/py27-diablo']),
# Test essex
change.branch = 'stable/essex'
item = queue.enqueueChange(change)
item.current_build_set.layout = layout
self.assertTrue(base.changeMatches(change))
self.assertTrue(python27.changeMatches(change))
self.assertFalse(python27diablo.changeMatches(change))
self.assertTrue(python27essex.changeMatches(change))
item.freezeJobGraph()
self.assertEqual(len(item.getJobs()), 1)
job = item.getJobs()[0]
self.assertEqual(job.name, 'python27')
self.assertEqual([x.path for x in job.pre_run],
['playbooks/base-pre',
'playbooks/py27-pre',
'playbooks/py27-essex-pre'])
self.assertEqual([x.path for x in job.post_run],
['playbooks/py27-essex-post',
'playbooks/py27-post',
'playbooks/base-post'])
self.assertEqual([x.path for x in job.run],
['playbooks/python27',
'playbooks/base'])
def test_job_auth_inheritance(self):
tenant = model.Tenant('tenant')
layout = model.Layout()
conf = yaml.safe_load('''
- secret:
name: pypi-credentials
data:
username: test-username
password: !encrypted/pkcs1-oaep |
BFhtdnm8uXx7kn79RFL/zJywmzLkT1GY78P3bOtp4WghUFWobkifSu7ZpaV4NeO0s71YUsi1wGZZ
L0LveZjUN0t6OU1VZKSG8R5Ly7urjaSo1pPVIq5Rtt/H7W14Lecd+cUeKb4joeusC9drN3AA8a4o
ykcVpt1wVqUnTbMGC9ARMCQP6eopcs1l7tzMseprW4RDNhIuz3CRgd0QBMPl6VDoFgBPB8vxtJw+
3m0rqBYZCLZgCXekqlny8s2s92nJMuUABbJOEcDRarzibDsSXsfJt1y+5n7yOURsC7lovMg4GF/v
Cl/0YMKjBO5bpv9EM5fToeKYyPGSKQoHOnCYceb3cAVcv5UawcCic8XjhEhp4K7WPdYf2HVAC/qt
xhbpjTxG4U5Q/SoppOJ60WqEkQvbXs6n5Dvy7xmph6GWmU/bAv3eUK3pdD3xa2Ue1lHWz3U+rsYr
aI+AKYsMYx3RBlfAmCeC1ve2BXPrqnOo7G8tnUvfdYPbK4Aakk0ds/AVqFHEZN+S6hRBmBjLaRFW
Z3QSO1NjbBxWnaHKZYT7nkrJm8AMCgZU0ZArFLpaufKCeiK5ECSsDxic4FIsY1OkWT42qEUfL0Wd
+150AKGNZpPJnnP3QYY4W/MWcKH/zdO400+zWN52WevbSqZy90tqKDJrBkMl1ydqbuw1E4ZHvIs=
''')[0]['secret']
conf['_source_context'] = self.context
conf['_start_mark'] = self.start_mark
secret = configloader.SecretParser.fromYaml(layout, conf)
layout.addSecret(secret)
base = configloader.JobParser.fromYaml(tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'base',
'timeout': 30,
})
layout.addJob(base)
pypi_upload_without_inherit = configloader.JobParser.fromYaml(
tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'pypi-upload-without-inherit',
'parent': 'base',
'timeout': 40,
'auth': {
'secrets': [
'pypi-credentials',
]
}
})
layout.addJob(pypi_upload_without_inherit)
pypi_upload_with_inherit = configloader.JobParser.fromYaml(
tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'pypi-upload-with-inherit',
'parent': 'base',
'timeout': 40,
'auth': {
'inherit': True,
'secrets': [
'pypi-credentials',
]
}
})
layout.addJob(pypi_upload_with_inherit)
pypi_upload_with_inherit_false = configloader.JobParser.fromYaml(
tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'pypi-upload-with-inherit-false',
'parent': 'base',
'timeout': 40,
'auth': {
'inherit': False,
'secrets': [
'pypi-credentials',
]
}
})
layout.addJob(pypi_upload_with_inherit_false)
in_repo_job_without_inherit = configloader.JobParser.fromYaml(
tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'in-repo-job-without-inherit',
'parent': 'pypi-upload-without-inherit',
})
layout.addJob(in_repo_job_without_inherit)
in_repo_job_with_inherit = configloader.JobParser.fromYaml(
tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'in-repo-job-with-inherit',
'parent': 'pypi-upload-with-inherit',
})
layout.addJob(in_repo_job_with_inherit)
in_repo_job_with_inherit_false = configloader.JobParser.fromYaml(
tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'in-repo-job-with-inherit-false',
'parent': 'pypi-upload-with-inherit-false',
})
layout.addJob(in_repo_job_with_inherit_false)
self.assertEqual(None, in_repo_job_without_inherit.auth)
self.assertEqual(1, len(in_repo_job_with_inherit.auth.secrets))
self.assertEqual(in_repo_job_with_inherit.auth.secrets[0].name,
'pypi-credentials')
self.assertEqual(None, in_repo_job_with_inherit_false.auth)
def test_job_inheritance_job_tree(self):
tenant = model.Tenant('tenant')
layout = model.Layout()
pipeline = model.Pipeline('gate', layout)
layout.addPipeline(pipeline)
queue = model.ChangeQueue(pipeline)
base = configloader.JobParser.fromYaml(tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'base',
'timeout': 30,
})
layout.addJob(base)
python27 = configloader.JobParser.fromYaml(tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'python27',
'parent': 'base',
'timeout': 40,
})
layout.addJob(python27)
python27diablo = configloader.JobParser.fromYaml(tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'python27',
'branches': [
'stable/diablo'
],
'timeout': 50,
})
layout.addJob(python27diablo)
project_config = configloader.ProjectParser.fromYaml(tenant, layout, [{
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'project',
'gate': {
'jobs': [
{'python27': {'timeout': 70}}
]
}
}])
layout.addProjectConfig(project_config)
change = model.Change(self.project)
change.branch = 'master'
item = queue.enqueueChange(change)
item.current_build_set.layout = layout
self.assertTrue(base.changeMatches(change))
self.assertTrue(python27.changeMatches(change))
self.assertFalse(python27diablo.changeMatches(change))
item.freezeJobGraph()
self.assertEqual(len(item.getJobs()), 1)
job = item.getJobs()[0]
self.assertEqual(job.name, 'python27')
self.assertEqual(job.timeout, 70)
change.branch = 'stable/diablo'
item = queue.enqueueChange(change)
item.current_build_set.layout = layout
self.assertTrue(base.changeMatches(change))
self.assertTrue(python27.changeMatches(change))
self.assertTrue(python27diablo.changeMatches(change))
item.freezeJobGraph()
self.assertEqual(len(item.getJobs()), 1)
job = item.getJobs()[0]
self.assertEqual(job.name, 'python27')
self.assertEqual(job.timeout, 70)
def test_inheritance_keeps_matchers(self):
tenant = model.Tenant('tenant')
layout = model.Layout()
pipeline = model.Pipeline('gate', layout)
layout.addPipeline(pipeline)
queue = model.ChangeQueue(pipeline)
project = model.Project('project', None)
base = configloader.JobParser.fromYaml(tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'base',
'timeout': 30,
})
layout.addJob(base)
python27 = configloader.JobParser.fromYaml(tenant, layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'python27',
'parent': 'base',
'timeout': 40,
'irrelevant-files': ['^ignored-file$'],
})
layout.addJob(python27)
project_config = configloader.ProjectParser.fromYaml(tenant, layout, [{
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'project',
'gate': {
'jobs': [
'python27',
]
}
}])
layout.addProjectConfig(project_config)
change = model.Change(project)
change.branch = 'master'
change.files = ['/COMMIT_MSG', 'ignored-file']
item = queue.enqueueChange(change)
item.current_build_set.layout = layout
self.assertTrue(base.changeMatches(change))
self.assertFalse(python27.changeMatches(change))
item.freezeJobGraph()
self.assertEqual([], item.getJobs())
def test_job_source_project(self):
tenant = model.Tenant('tenant')
layout = model.Layout()
base_project = model.Project('base_project', None)
base_context = model.SourceContext(base_project, 'master',
'test', True)
base = configloader.JobParser.fromYaml(tenant, layout, {
'_source_context': base_context,
'_start_mark': self.start_mark,
'name': 'base',
})
layout.addJob(base)
other_project = model.Project('other_project', None)
other_context = model.SourceContext(other_project, 'master',
'test', True)
base2 = configloader.JobParser.fromYaml(tenant, layout, {
'_source_context': other_context,
'_start_mark': self.start_mark,
'name': 'base',
})
with testtools.ExpectedException(
Exception,
"Job base in other_project is not permitted "
"to shadow job base in base_project"):
layout.addJob(base2)
def test_job_allowed_projects(self):
job = configloader.JobParser.fromYaml(self.tenant, self.layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'job',
'allowed-projects': ['project'],
})
self.layout.addJob(job)
project2 = model.Project('project2', None)
context2 = model.SourceContext(project2, 'master',
'test', True)
project2_config = configloader.ProjectParser.fromYaml(
self.tenant, self.layout, [{
'_source_context': context2,
'_start_mark': self.start_mark,
'name': 'project2',
'gate': {
'jobs': [
'job'
]
}
}]
)
self.layout.addProjectConfig(project2_config)
change = model.Change(project2)
# Test master
change.branch = 'master'
item = self.queue.enqueueChange(change)
item.current_build_set.layout = self.layout
with testtools.ExpectedException(
Exception,
"Project project2 is not allowed to run job job"):
item.freezeJobGraph()
def test_job_pipeline_allow_secrets(self):
self.pipeline.allow_secrets = False
job = configloader.JobParser.fromYaml(self.tenant, self.layout, {
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'job',
})
auth = model.AuthContext()
auth.secrets.append('foo')
job.auth = auth
self.layout.addJob(job)
project_config = configloader.ProjectParser.fromYaml(
self.tenant, self.layout, [{
'_source_context': self.context,
'_start_mark': self.start_mark,
'name': 'project',
'gate': {
'jobs': [
'job'
]
}
}]
)
self.layout.addProjectConfig(project_config)
change = model.Change(self.project)
# Test master
change.branch = 'master'
item = self.queue.enqueueChange(change)
item.current_build_set.layout = self.layout
with testtools.ExpectedException(
Exception,
"Pipeline gate does not allow jobs with secrets"):
item.freezeJobGraph()
class TestJobTimeData(BaseTestCase):
def setUp(self):
super(TestJobTimeData, self).setUp()
self.tmp_root = self.useFixture(fixtures.TempDir(
rootdir=os.environ.get("ZUUL_TEST_ROOT"))
).path
def test_empty_timedata(self):
path = os.path.join(self.tmp_root, 'job-name')
self.assertFalse(os.path.exists(path))
self.assertFalse(os.path.exists(path + '.tmp'))
td = model.JobTimeData(path)
self.assertEqual(td.success_times, [0, 0, 0, 0, 0, 0, 0, 0, 0, 0])
self.assertEqual(td.failure_times, [0, 0, 0, 0, 0, 0, 0, 0, 0, 0])
self.assertEqual(td.results, [0, 0, 0, 0, 0, 0, 0, 0, 0, 0])
def test_save_reload(self):
path = os.path.join(self.tmp_root, 'job-name')
self.assertFalse(os.path.exists(path))
self.assertFalse(os.path.exists(path + '.tmp'))
td = model.JobTimeData(path)
self.assertEqual(td.success_times, [0, 0, 0, 0, 0, 0, 0, 0, 0, 0])
self.assertEqual(td.failure_times, [0, 0, 0, 0, 0, 0, 0, 0, 0, 0])
self.assertEqual(td.results, [0, 0, 0, 0, 0, 0, 0, 0, 0, 0])
success_times = []
failure_times = []
results = []
for x in range(10):
success_times.append(int(random.random() * 1000))
failure_times.append(int(random.random() * 1000))
results.append(0)
results.append(1)
random.shuffle(results)
s = f = 0
for result in results:
if result:
td.add(failure_times[f], 'FAILURE')
f += 1
else:
td.add(success_times[s], 'SUCCESS')
s += 1
self.assertEqual(td.success_times, success_times)
self.assertEqual(td.failure_times, failure_times)
self.assertEqual(td.results, results[10:])
td.save()
self.assertTrue(os.path.exists(path))
self.assertFalse(os.path.exists(path + '.tmp'))
td = model.JobTimeData(path)
td.load()
self.assertEqual(td.success_times, success_times)
self.assertEqual(td.failure_times, failure_times)
self.assertEqual(td.results, results[10:])
class TestTimeDataBase(BaseTestCase):
def setUp(self):
super(TestTimeDataBase, self).setUp()
self.tmp_root = self.useFixture(fixtures.TempDir(
rootdir=os.environ.get("ZUUL_TEST_ROOT"))
).path
self.db = model.TimeDataBase(self.tmp_root)
def test_timedatabase(self):
self.assertEqual(self.db.getEstimatedTime('job-name'), 0)
self.db.update('job-name', 50, 'SUCCESS')
self.assertEqual(self.db.getEstimatedTime('job-name'), 50)
self.db.update('job-name', 100, 'SUCCESS')
self.assertEqual(self.db.getEstimatedTime('job-name'), 75)
for x in range(10):
self.db.update('job-name', 100, 'SUCCESS')
self.assertEqual(self.db.getEstimatedTime('job-name'), 100)
class TestGraph(BaseTestCase):
def test_job_graph_disallows_multiple_jobs_with_same_name(self):
graph = model.JobGraph()
job1 = model.Job('job')
job2 = model.Job('job')
graph.addJob(job1)
with testtools.ExpectedException(Exception,
"Job job already added"):
graph.addJob(job2)
def test_job_graph_disallows_circular_dependencies(self):
graph = model.JobGraph()
jobs = [model.Job('job%d' % i) for i in range(0, 10)]
prevjob = None
for j in jobs[:3]:
if prevjob:
j.dependencies = frozenset([prevjob.name])
graph.addJob(j)
prevjob = j
# 0 triggers 1 triggers 2 triggers 3...
# Cannot depend on itself
with testtools.ExpectedException(
Exception,
"Dependency cycle detected in job jobX"):
j = model.Job('jobX')
j.dependencies = frozenset([j.name])
graph.addJob(j)
# Disallow circular dependencies
with testtools.ExpectedException(
Exception,
"Dependency cycle detected in job job3"):
jobs[4].dependencies = frozenset([jobs[3].name])
graph.addJob(jobs[4])
jobs[3].dependencies = frozenset([jobs[4].name])
graph.addJob(jobs[3])
jobs[5].dependencies = frozenset([jobs[4].name])
graph.addJob(jobs[5])
with testtools.ExpectedException(
Exception,
"Dependency cycle detected in job job3"):
jobs[3].dependencies = frozenset([jobs[5].name])
graph.addJob(jobs[3])
jobs[3].dependencies = frozenset([jobs[2].name])
graph.addJob(jobs[3])
jobs[6].dependencies = frozenset([jobs[2].name])
graph.addJob(jobs[6])