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from __future__ import unicode_literals
import os
import shutil
import tempfile
import time
import unittest
import prometheus_client
from prometheus_client.core import *
from prometheus_client.multiprocess import *
class TestMultiProcess(unittest.TestCase):
def setUp(self):
self.tempdir = tempfile.mkdtemp()
os.environ['prometheus_multiproc_dir'] = self.tempdir
prometheus_client.core._ValueClass = prometheus_client.core._MultiProcessValue(123)
self.registry = CollectorRegistry()
MultiProcessCollector(self.registry, self.tempdir)
def tearDown(self):
del os.environ['prometheus_multiproc_dir']
shutil.rmtree(self.tempdir)
prometheus_client.core._ValueClass = prometheus_client.core._MutexValue
def test_counter_adds(self):
c1 = Counter('c', 'help', registry=None)
prometheus_client.core._ValueClass = prometheus_client.core._MultiProcessValue(456)
c2 = Counter('c', 'help', registry=None)
self.assertEqual(0, self.registry.get_sample_value('c'))
c1.inc(1)
c2.inc(2)
self.assertEqual(3, self.registry.get_sample_value('c'))
def test_summary_adds(self):
s1 = Summary('s', 'help', registry=None)
prometheus_client.core._ValueClass = prometheus_client.core._MultiProcessValue(456)
s2 = Summary('s', 'help', registry=None)
self.assertEqual(0, self.registry.get_sample_value('s_count'))
self.assertEqual(0, self.registry.get_sample_value('s_sum'))
s1.observe(1)
s2.observe(2)
self.assertEqual(2, self.registry.get_sample_value('s_count'))
self.assertEqual(3, self.registry.get_sample_value('s_sum'))
def test_histogram_adds(self):
h1 = Histogram('h', 'help', registry=None)
prometheus_client.core._ValueClass = prometheus_client.core._MultiProcessValue(456)
h2 = Histogram('h', 'help', registry=None)
self.assertEqual(0, self.registry.get_sample_value('h_count'))
self.assertEqual(0, self.registry.get_sample_value('h_sum'))
self.assertEqual(0, self.registry.get_sample_value('h_bucket', {'le': '5.0'}))
h1.observe(1)
h2.observe(2)
self.assertEqual(2, self.registry.get_sample_value('h_count'))
self.assertEqual(3, self.registry.get_sample_value('h_sum'))
self.assertEqual(2, self.registry.get_sample_value('h_bucket', {'le': '5.0'}))
def test_gauge_all(self):
g1 = Gauge('g', 'help', registry=None)
prometheus_client.core._ValueClass = prometheus_client.core._MultiProcessValue(456)
g2 = Gauge('g', 'help', registry=None)
self.assertEqual(0, self.registry.get_sample_value('g', {'pid': '123'}))
self.assertEqual(0, self.registry.get_sample_value('g', {'pid': '456'}))
g1.set(1)
g2.set(2)
mark_process_dead(123, os.environ['prometheus_multiproc_dir'])
self.assertEqual(1, self.registry.get_sample_value('g', {'pid': '123'}))
self.assertEqual(2, self.registry.get_sample_value('g', {'pid': '456'}))
def test_gauge_liveall(self):
g1 = Gauge('g', 'help', registry=None, multiprocess_mode='liveall')
prometheus_client.core._ValueClass = prometheus_client.core._MultiProcessValue(456)
g2 = Gauge('g', 'help', registry=None, multiprocess_mode='liveall')
self.assertEqual(0, self.registry.get_sample_value('g', {'pid': '123'}))
self.assertEqual(0, self.registry.get_sample_value('g', {'pid': '456'}))
g1.set(1)
g2.set(2)
self.assertEqual(1, self.registry.get_sample_value('g', {'pid': '123'}))
self.assertEqual(2, self.registry.get_sample_value('g', {'pid': '456'}))
mark_process_dead(123, os.environ['prometheus_multiproc_dir'])
self.assertEqual(None, self.registry.get_sample_value('g', {'pid': '123'}))
self.assertEqual(2, self.registry.get_sample_value('g', {'pid': '456'}))
def test_gauge_min(self):
g1 = Gauge('g', 'help', registry=None, multiprocess_mode='min')
prometheus_client.core._ValueClass = prometheus_client.core._MultiProcessValue(456)
g2 = Gauge('g', 'help', registry=None, multiprocess_mode='min')
self.assertEqual(0, self.registry.get_sample_value('g'))
g1.set(1)
g2.set(2)
self.assertEqual(1, self.registry.get_sample_value('g'))
def test_gauge_max(self):
g1 = Gauge('g', 'help', registry=None, multiprocess_mode='max')
prometheus_client.core._ValueClass = prometheus_client.core._MultiProcessValue(456)
g2 = Gauge('g', 'help', registry=None, multiprocess_mode='max')
self.assertEqual(0, self.registry.get_sample_value('g'))
g1.set(1)
g2.set(2)
self.assertEqual(2, self.registry.get_sample_value('g'))
def test_gauge_livesum(self):
g1 = Gauge('g', 'help', registry=None, multiprocess_mode='livesum')
prometheus_client.core._ValueClass = prometheus_client.core._MultiProcessValue(456)
g2 = Gauge('g', 'help', registry=None, multiprocess_mode='livesum')
self.assertEqual(0, self.registry.get_sample_value('g'))
g1.set(1)
g2.set(2)
self.assertEqual(3, self.registry.get_sample_value('g'))
mark_process_dead(123, os.environ['prometheus_multiproc_dir'])
self.assertEqual(2, self.registry.get_sample_value('g'))
class TestMmapedDict(unittest.TestCase):
def setUp(self):
fd, self.tempfile = tempfile.mkstemp()
os.close(fd)
self.d = core._MmapedDict(self.tempfile)
def test_process_restart(self):
self.d.write_value('abc', 123.0)
self.d.close()
self.d = core._MmapedDict(self.tempfile)
self.assertEqual(123, self.d.read_value('abc'))
self.assertEqual([('abc', 123.0)], list(self.d.read_all_values()))
def test_expansion(self):
key = 'a' * core._INITIAL_MMAP_SIZE
self.d.write_value(key, 123.0)
self.assertEqual([(key, 123.0)], list(self.d.read_all_values()))
def test_multi_expansion(self):
key = 'a' * core._INITIAL_MMAP_SIZE * 4
self.d.write_value('abc', 42.0)
self.d.write_value(key, 123.0)
self.d.write_value('def', 17.0)
self.assertEqual([('abc', 42.0), (key, 123.0), ('def', 17.0)],
list(self.d.read_all_values()))
def tearDown(self):
os.unlink(self.tempfile)
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