core/tests/components/sensor/test_file.py

92 lines
3.0 KiB
Python

"""The tests for local file sensor platform."""
import unittest
from unittest.mock import Mock, patch
# Using third party package because of a bug reading binary data in Python 3.4
# https://bugs.python.org/issue23004
from mock_open import MockOpen
from homeassistant.setup import setup_component
from homeassistant.const import STATE_UNKNOWN
from tests.common import get_test_home_assistant
class TestFileSensor(unittest.TestCase):
"""Test the File sensor."""
def setup_method(self, method):
"""Set up things to be run when tests are started."""
self.hass = get_test_home_assistant()
def teardown_method(self, method):
"""Stop everything that was started."""
self.hass.stop()
@patch('os.path.isfile', Mock(return_value=True))
@patch('os.access', Mock(return_value=True))
def test_file_value(self):
"""Test the File sensor."""
config = {
'sensor': {
'platform': 'file',
'name': 'file1',
'file_path': 'mock.file1',
}
}
m_open = MockOpen(read_data='43\n45\n21')
with patch('homeassistant.components.sensor.file.open', m_open,
create=True):
assert setup_component(self.hass, 'sensor', config)
self.hass.block_till_done()
state = self.hass.states.get('sensor.file1')
self.assertEqual(state.state, '21')
@patch('os.path.isfile', Mock(return_value=True))
@patch('os.access', Mock(return_value=True))
def test_file_value_template(self):
"""Test the File sensor with JSON entries."""
config = {
'sensor': {
'platform': 'file',
'name': 'file2',
'file_path': 'mock.file2',
'value_template': '{{ value_json.temperature }}',
}
}
data = '{"temperature": 29, "humidity": 31}\n' \
'{"temperature": 26, "humidity": 36}'
m_open = MockOpen(read_data=data)
with patch('homeassistant.components.sensor.file.open', m_open,
create=True):
assert setup_component(self.hass, 'sensor', config)
self.hass.block_till_done()
state = self.hass.states.get('sensor.file2')
self.assertEqual(state.state, '26')
@patch('os.path.isfile', Mock(return_value=True))
@patch('os.access', Mock(return_value=True))
def test_file_empty(self):
"""Test the File sensor with an empty file."""
config = {
'sensor': {
'platform': 'file',
'name': 'file3',
'file_path': 'mock.file',
}
}
m_open = MockOpen(read_data='')
with patch('homeassistant.components.sensor.file.open', m_open,
create=True):
assert setup_component(self.hass, 'sensor', config)
self.hass.block_till_done()
state = self.hass.states.get('sensor.file3')
self.assertEqual(state.state, STATE_UNKNOWN)