/usr/lib/python2.7/dist-packages/kazoo/tests/test_barrier.py is in python-kazoo 2.2.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 | import threading
from nose.tools import eq_
from kazoo.testing import KazooTestCase
class KazooBarrierTests(KazooTestCase):
def test_barrier_not_exist(self):
b = self.client.Barrier("/some/path")
eq_(b.wait(), True)
def test_barrier_exists(self):
b = self.client.Barrier("/some/path")
b.create()
eq_(b.wait(0), False)
b.remove()
eq_(b.wait(), True)
def test_remove_nonexistent_barrier(self):
b = self.client.Barrier("/some/path")
eq_(b.remove(), False)
class KazooDoubleBarrierTests(KazooTestCase):
def test_basic_barrier(self):
b = self.client.DoubleBarrier("/some/path", 1)
eq_(b.participating, False)
b.enter()
eq_(b.participating, True)
b.leave()
eq_(b.participating, False)
def test_two_barrier(self):
av = threading.Event()
ev = threading.Event()
bv = threading.Event()
release_all = threading.Event()
b1 = self.client.DoubleBarrier("/some/path", 2)
b2 = self.client.DoubleBarrier("/some/path", 2)
def make_barrier_one():
b1.enter()
ev.set()
release_all.wait()
b1.leave()
ev.set()
def make_barrier_two():
bv.wait()
b2.enter()
av.set()
release_all.wait()
b2.leave()
av.set()
# Spin up both of them
t1 = threading.Thread(target=make_barrier_one)
t1.start()
t2 = threading.Thread(target=make_barrier_two)
t2.start()
eq_(b1.participating, False)
eq_(b2.participating, False)
bv.set()
av.wait()
ev.wait()
eq_(b1.participating, True)
eq_(b2.participating, True)
av.clear()
ev.clear()
release_all.set()
av.wait()
ev.wait()
eq_(b1.participating, False)
eq_(b2.participating, False)
t1.join()
t2.join()
def test_three_barrier(self):
av = threading.Event()
ev = threading.Event()
bv = threading.Event()
release_all = threading.Event()
b1 = self.client.DoubleBarrier("/some/path", 3)
b2 = self.client.DoubleBarrier("/some/path", 3)
b3 = self.client.DoubleBarrier("/some/path", 3)
def make_barrier_one():
b1.enter()
ev.set()
release_all.wait()
b1.leave()
ev.set()
def make_barrier_two():
bv.wait()
b2.enter()
av.set()
release_all.wait()
b2.leave()
av.set()
# Spin up both of them
t1 = threading.Thread(target=make_barrier_one)
t1.start()
t2 = threading.Thread(target=make_barrier_two)
t2.start()
eq_(b1.participating, False)
eq_(b2.participating, False)
bv.set()
eq_(b1.participating, False)
eq_(b2.participating, False)
b3.enter()
ev.wait()
av.wait()
eq_(b1.participating, True)
eq_(b2.participating, True)
eq_(b3.participating, True)
av.clear()
ev.clear()
release_all.set()
b3.leave()
av.wait()
ev.wait()
eq_(b1.participating, False)
eq_(b2.participating, False)
eq_(b3.participating, False)
t1.join()
t2.join()
def test_barrier_existing_parent_node(self):
b = self.client.DoubleBarrier('/some/path', 1)
self.assertFalse(b.participating)
self.client.create('/some', ephemeral=True)
# the barrier cannot create children under an ephemeral node
b.enter()
self.assertFalse(b.participating)
def test_barrier_existing_node(self):
b = self.client.DoubleBarrier('/some', 1)
self.assertFalse(b.participating)
self.client.ensure_path(b.path)
self.client.create(b.create_path, ephemeral=True)
# the barrier will re-use an existing node
b.enter()
self.assertTrue(b.participating)
b.leave()
|