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ac72dea09a
Prometheus (https://prometheus.io/) is an open source metric and alerting system. This adds support for exporting some metrics to Prometheus, using its Python client library.
34 lines
1.0 KiB
Python
34 lines
1.0 KiB
Python
"""The tests for the Prometheus exporter."""
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import asyncio
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import pytest
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from homeassistant.setup import async_setup_component
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import homeassistant.components.prometheus as prometheus
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@pytest.fixture
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def prometheus_client(loop, hass, test_client):
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"""Initialize a test_client with Prometheus component."""
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assert loop.run_until_complete(async_setup_component(
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hass,
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prometheus.DOMAIN,
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{},
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))
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return loop.run_until_complete(test_client(hass.http.app))
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@asyncio.coroutine
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def test_view(prometheus_client): # pylint: disable=redefined-outer-name
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"""Test prometheus metrics view."""
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resp = yield from prometheus_client.get(prometheus.API_ENDPOINT)
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assert resp.status == 200
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assert resp.headers['content-type'] == 'text/plain'
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body = yield from resp.text()
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body = body.split("\n")
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assert len(body) > 3 # At least two comment lines and a metric
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for line in body:
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if line:
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assert line.startswith('# ') or line.startswith('process_')
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