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# -*- coding: utf-8 -*-
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals
import unittest
import warnings
import mock
from datetime import datetime, timedelta
from influxdb import SeriesHelper, InfluxDBClient
from requests.exceptions import ConnectionError
class TestSeriesHelper(unittest.TestCase):
@classmethod
def setUpClass(cls):
super(TestSeriesHelper, cls).setUpClass()
TestSeriesHelper.client = InfluxDBClient(
'host',
8086,
'username',
'password',
'database'
)
class MySeriesHelper(SeriesHelper):
class Meta:
client = TestSeriesHelper.client
series_name = 'events.stats.{server_name}'
fields = ['some_stat']
tags = ['server_name', 'other_tag']
bulk_size = 5
autocommit = True
TestSeriesHelper.MySeriesHelper = MySeriesHelper
def tearDown(self):
super(TestSeriesHelper, self).tearDown()
TestSeriesHelper.MySeriesHelper._reset_()
self.assertEqual(
TestSeriesHelper.MySeriesHelper._json_body_(),
[],
'Resetting helper did not empty datapoints.')
def test_auto_commit(self):
"""
Tests that write_points is called after the right number of events
"""
class AutoCommitTest(SeriesHelper):
class Meta:
series_name = 'events.stats.{server_name}'
fields = ['some_stat']
tags = ['server_name', 'other_tag']
bulk_size = 5
client = InfluxDBClient()
autocommit = True
fake_write_points = mock.MagicMock()
AutoCommitTest(server_name='us.east-1', some_stat=159, other_tag='gg')
AutoCommitTest._client.write_points = fake_write_points
AutoCommitTest(server_name='us.east-1', some_stat=158, other_tag='gg')
AutoCommitTest(server_name='us.east-1', some_stat=157, other_tag='gg')
AutoCommitTest(server_name='us.east-1', some_stat=156, other_tag='gg')
self.assertFalse(fake_write_points.called)
AutoCommitTest(server_name='us.east-1', some_stat=3443, other_tag='gg')
self.assertTrue(fake_write_points.called)
@mock.patch('influxdb.helper.SeriesHelper._current_timestamp')
def testSingleSeriesName(self, current_timestamp):
"""
Tests JSON conversion when there is only one series name.
"""
current_timestamp.return_value = current_date = datetime.today()
TestSeriesHelper.MySeriesHelper(
server_name='us.east-1', other_tag='ello', some_stat=159)
TestSeriesHelper.MySeriesHelper(
server_name='us.east-1', other_tag='ello', some_stat=158)
TestSeriesHelper.MySeriesHelper(
server_name='us.east-1', other_tag='ello', some_stat=157)
TestSeriesHelper.MySeriesHelper(
server_name='us.east-1', other_tag='ello', some_stat=156)
expectation = [
{
"measurement": "events.stats.us.east-1",
"tags": {
"other_tag": "ello",
"server_name": "us.east-1"
},
"fields": {
"some_stat": 159
},
"time": current_date,
},
{
"measurement": "events.stats.us.east-1",
"tags": {
"other_tag": "ello",
"server_name": "us.east-1"
},
"fields": {
"some_stat": 158
},
"time": current_date,
},
{
"measurement": "events.stats.us.east-1",
"tags": {
"other_tag": "ello",
"server_name": "us.east-1"
},
"fields": {
"some_stat": 157
},
"time": current_date,
},
{
"measurement": "events.stats.us.east-1",
"tags": {
"other_tag": "ello",
"server_name": "us.east-1"
},
"fields": {
"some_stat": 156
},
"time": current_date,
}
]
rcvd = TestSeriesHelper.MySeriesHelper._json_body_()
self.assertTrue(all([el in expectation for el in rcvd]) and
all([el in rcvd for el in expectation]),
'Invalid JSON body of time series returned from '
'_json_body_ for one series name: {0}.'.format(rcvd))
@mock.patch('influxdb.helper.SeriesHelper._current_timestamp')
def testSeveralSeriesNames(self, current_timestamp):
"""
Tests JSON conversion when there are multiple series names.
"""
current_timestamp.return_value = current_date = datetime.today()
TestSeriesHelper.MySeriesHelper(
server_name='us.east-1', some_stat=159, other_tag='ello')
TestSeriesHelper.MySeriesHelper(
server_name='fr.paris-10', some_stat=158, other_tag='ello')
TestSeriesHelper.MySeriesHelper(
server_name='lu.lux', some_stat=157, other_tag='ello')
TestSeriesHelper.MySeriesHelper(
server_name='uk.london', some_stat=156, other_tag='ello')
expectation = [
{
'fields': {
'some_stat': 157
},
'measurement': 'events.stats.lu.lux',
'tags': {
'other_tag': 'ello',
'server_name': 'lu.lux'
},
"time": current_date,
},
{
'fields': {
'some_stat': 156
},
'measurement': 'events.stats.uk.london',
'tags': {
'other_tag': 'ello',
'server_name': 'uk.london'
},
"time": current_date,
},
{
'fields': {
'some_stat': 158
},
'measurement': 'events.stats.fr.paris-10',
'tags': {
'other_tag': 'ello',
'server_name': 'fr.paris-10'
},
"time": current_date,
},
{
'fields': {
'some_stat': 159
},
'measurement': 'events.stats.us.east-1',
'tags': {
'other_tag': 'ello',
'server_name': 'us.east-1'
},
"time": current_date,
}
]
rcvd = TestSeriesHelper.MySeriesHelper._json_body_()
self.assertTrue(all([el in expectation for el in rcvd]) and
all([el in rcvd for el in expectation]),
'Invalid JSON body of time series returned from '
'_json_body_ for several series names: {0}.'
.format(rcvd))
@mock.patch('influxdb.helper.SeriesHelper._current_timestamp')
def testSeriesWithoutTimeField(self, current_timestamp):
"""
Tests that time is optional on a series without a time field.
"""
current_date = datetime.today()
yesterday = current_date - timedelta(days=1)
current_timestamp.return_value = yesterday
TestSeriesHelper.MySeriesHelper(
server_name='us.east-1', other_tag='ello',
some_stat=159, time=current_date
)
TestSeriesHelper.MySeriesHelper(
server_name='us.east-1', other_tag='ello',
some_stat=158,
)
point1, point2 = TestSeriesHelper.MySeriesHelper._json_body_()
self.assertTrue('time' in point1 and 'time' in point2)
self.assertEqual(point1['time'], current_date)
self.assertEqual(point2['time'], yesterday)
@mock.patch('influxdb.helper.SeriesHelper._current_timestamp')
def testSeriesWithTimeField(self, current_timestamp):
"""
Test that time is optional on a series with a time field.
"""
current_date = datetime.today()
yesterday = current_date - timedelta(days=1)
current_timestamp.return_value = yesterday
class MyTimeFieldSeriesHelper(SeriesHelper):
class Meta:
client = TestSeriesHelper.client
series_name = 'events.stats.{server_name}'
fields = ['some_stat', 'time']
tags = ['server_name', 'other_tag']
bulk_size = 5
autocommit = True
MyTimeFieldSeriesHelper(
server_name='us.east-1', other_tag='ello',
some_stat=159, time=current_date
)
MyTimeFieldSeriesHelper(
server_name='us.east-1', other_tag='ello',
some_stat=158,
)
point1, point2 = MyTimeFieldSeriesHelper._json_body_()
self.assertTrue('time' in point1 and 'time' in point2)
self.assertEqual(point1['time'], current_date)
self.assertEqual(point2['time'], yesterday)
def testInvalidHelpers(self):
'''
Tests errors in invalid helpers.
'''
class MissingMeta(SeriesHelper):
pass
class MissingClient(SeriesHelper):
class Meta:
series_name = 'events.stats.{server_name}'
fields = ['time', 'server_name']
autocommit = True
class MissingSeriesName(SeriesHelper):
class Meta:
fields = ['time', 'server_name']
class MissingFields(SeriesHelper):
class Meta:
series_name = 'events.stats.{server_name}'
for cls in [MissingMeta, MissingClient, MissingFields,
MissingSeriesName]:
self.assertRaises(
AttributeError, cls, **{'time': 159,
'server_name': 'us.east-1'})
@unittest.skip("Fails on py32")
def testWarnBulkSizeZero(self):
"""
Tests warning for an invalid bulk size.
"""
class WarnBulkSizeZero(SeriesHelper):
class Meta:
client = TestSeriesHelper.client
series_name = 'events.stats.{server_name}'
fields = ['time', 'server_name']
tags = []
bulk_size = 0
autocommit = True
with warnings.catch_warnings(record=True) as w:
warnings.simplefilter("always")
try:
WarnBulkSizeZero(time=159, server_name='us.east-1')
except ConnectionError:
# Server defined in the client is invalid, we're testing
# the warning only.
pass
self.assertEqual(len(w), 1,
'{0} call should have generated one warning.'
.format(WarnBulkSizeZero))
self.assertIn('forced to 1', str(w[-1].message),
'Warning message did not contain "forced to 1".')
def testWarnBulkSizeNoEffect(self):
"""
Tests warning for a set bulk size but autocommit False.
"""
class WarnBulkSizeNoEffect(SeriesHelper):
class Meta:
series_name = 'events.stats.{server_name}'
fields = ['time', 'server_name']
bulk_size = 5
tags = []
autocommit = False
with warnings.catch_warnings(record=True) as w:
warnings.simplefilter("always")
WarnBulkSizeNoEffect(time=159, server_name='us.east-1')
self.assertEqual(len(w), 1,
'{0} call should have generated one warning.'
.format(WarnBulkSizeNoEffect))
self.assertIn('has no affect', str(w[-1].message),
'Warning message did not contain "has not affect".')
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