Fix SET_TEMPERATURE_SCHEMA in climate component (#8879)

* Require either temperature or high/low target temperatures.
* Add tests.

tests/components/climate/test_init.py

@@ -0,0 +1,40 @@
+"""The tests for the climate component."""
+import asyncio
+
+from homeassistant.components.climate import SET_TEMPERATURE_SCHEMA
+from tests.common import async_mock_service
+
+
+@asyncio.coroutine
+def test_set_temp_schema_no_req(hass, caplog):
+    """Test the set temperature schema with missing required data."""
+    domain = 'climate'
+    service = 'test_set_temperature'
+    schema = SET_TEMPERATURE_SCHEMA
+    calls = async_mock_service(hass, domain, service, schema)
+
+    data = {'operation_mode': 'test', 'entity_id': ['climate.test_id']}
+    yield from hass.services.async_call(domain, service, data)
+    yield from hass.async_block_till_done()
+
+    assert len(calls) == 0
+    assert 'ERROR' in caplog.text
+    assert 'Invalid service data' in caplog.text
+
+
+@asyncio.coroutine
+def test_set_temp_schema(hass, caplog):
+    """Test the set temperature schema with ok required data."""
+    domain = 'climate'
+    service = 'test_set_temperature'
+    schema = SET_TEMPERATURE_SCHEMA
+    calls = async_mock_service(hass, domain, service, schema)
+
+    data = {
+        'temperature': 20.0, 'operation_mode': 'test',
+        'entity_id': ['climate.test_id']}
+    yield from hass.services.async_call(domain, service, data)
+    yield from hass.async_block_till_done()
+
+    assert len(calls) == 1
+    assert calls[-1].data == data