def test_crossover_bounce_no_existing_apps(self):
"""When marathon is unaware of a service, crossover bounce should try to
create a marathon app."""
new_config = {'id': 'foo.bar.12345', 'instances': 5}
happy_tasks = []
old_app_live_tasks = {}
assert bounce_lib.crossover_bounce(
new_config=new_config,
new_app_running=False,
happy_new_tasks=happy_tasks,
old_app_live_tasks=old_app_live_tasks,
) == {
"create_app": True,
"tasks_to_drain": set(),
}
def test_crossover_bounce_done(self):
"""When marathon has the desired app, and there are no other copies of
the service running, crossover bounce should neither start nor stop
anything."""
new_config = {'id': 'foo.bar.12345', 'instances': 5}
happy_tasks = [mock.Mock() for _ in xrange(5)]
old_app_live_tasks = {}
assert bounce_lib.crossover_bounce(
new_config=new_config,
new_app_running=True,
happy_new_tasks=happy_tasks,
old_app_live_tasks=old_app_live_tasks,
) == {
"create_app": False,
"tasks_to_drain": set(),
}
def test_crossover_bounce_mid_bounce(self):
"""When marathon has the desired app, and there are other copies of the service running, but the new app is not
fully up, crossover bounce should only stop a few of the old instances."""
new_config = {'id': 'foo.bar.12345', 'instances': 5}
happy_tasks = [mock.Mock() for _ in xrange(3)]
old_app_live_tasks = {
'app1': set(mock.Mock() for _ in xrange(3)),
'app2': set(mock.Mock() for _ in xrange(2)),
}
actual = bounce_lib.crossover_bounce(
new_config=new_config,
new_app_running=True,
happy_new_tasks=happy_tasks,
old_app_live_tasks=old_app_live_tasks,
)
assert actual['create_app'] is False
assert len(actual['tasks_to_drain']) == 3
def test_crossover_bounce_old_but_no_new(self):
"""When marathon only has old apps for this service, crossover bounce should start the new one, but not kill any
old tasks yet."""
new_config = {'id': 'foo.bar.12345', 'instances': 5}
happy_tasks = []
old_app_live_tasks = {
'app1': set(mock.Mock() for _ in xrange(3)),
'app2': set(mock.Mock() for _ in xrange(2)),
}
assert bounce_lib.crossover_bounce(
new_config=new_config,
new_app_running=False,
happy_new_tasks=happy_tasks,
old_app_live_tasks=old_app_live_tasks,
) == {
"create_app": True,
"tasks_to_drain": set(),
}
def test_crossover_bounce_cleanup(self):
"""When marathon has the desired app, and there are other copies of
the service running, which have no remaining tasks, those apps should
be killed."""
new_config = {'id': 'foo.bar.12345', 'instances': 5}
happy_tasks = [mock.Mock() for _ in xrange(5)]
old_app_live_tasks = {
'app1': set(),
'app2': set(),
}
assert bounce_lib.crossover_bounce(
new_config=new_config,
new_app_running=True,
happy_new_tasks=happy_tasks,
old_app_live_tasks=old_app_live_tasks,
) == {
"create_app": False,
"tasks_to_drain": set(),
}