def test_tags(tags, defaults, expected):
metric = aiomeasures.CountingMetric('foo', 1, tags=tags)
handler = aiomeasures.StatsD(':0', tags=defaults)
assert handler.format(metric) == 'foo:1|c%s' % expected
import aiomeasures
import asyncio
import pytest
from datetime import timedelta
simple = [
(aiomeasures.CountingMetric('foo', 1), 'foo:1|c'),
(aiomeasures.CountingMetric('foo', -1), 'foo:-1|c'),
(aiomeasures.GaugeMetric('foo', 1), 'foo:1|g'),
(aiomeasures.GaugeMetric('foo', -1), 'foo:-1|g'),
(aiomeasures.HistogramMetric('foo', 42), 'foo:42|h'),
(aiomeasures.HistogramMetric('foo', -42), 'foo:-42|h'),
(aiomeasures.SetMetric('foo', 'bar'), 'foo:bar|s'),
(aiomeasures.TimingMetric('foo', 100), 'foo:100|ms'),
]
one_second = timedelta(seconds=1)
twenty_ms = timedelta(microseconds=20000)
rated = [
(aiomeasures.CountingMetric('foo', 1, 0.1), 'foo:1|c|@0.1'),
(aiomeasures.GaugeMetric('foo', 1, 0.1), 'foo:1|g|@0.1'),
(aiomeasures.SetMetric('foo', 'bar', 0.1), 'foo:bar|s|@0.1'),
(aiomeasures.TimingMetric('foo', 100, 0.1), 'foo:100|ms|@0.1'),
(aiomeasures.HistogramMetric('foo', -42, 0.1), 'foo:-42|h|@0.1'),
(aiomeasures.CountingMetric('foo', 1, one_second), 'foo:1|c|@1'),
(aiomeasures.GaugeMetric('foo', 1, one_second), 'foo:1|g|@1'),
(aiomeasures.SetMetric('foo', 'bar', one_second), 'foo:bar|s|@1'),
(aiomeasures.TimingMetric('foo', 100, one_second), 'foo:100|ms|@1'),
(aiomeasures.HistogramMetric('foo', -42, one_second), 'foo:-42|h|@1'),
(aiomeasures.CountingMetric('foo', 1, twenty_ms), 'foo:1|c|@0.02'),