Add tests for BSBLAN climate component

[liudger]

Make the test coverage 100%

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• This PR fixes or closes issue: fixes #
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[liudger]

@joostlek to get all attributes tested I need to set some values that bsblan could return depending on the features. Is this the way? a9ec445 It was hard to get it from the other examples how to fake some returns to let the integration return the correct values

[joostlek]

get all attributes tested

Which ones?
Also there is a merge conflict

[liudger]

the current_temperature is None

    # Spoof the current_temperature value to "---"
    mock_bsblan.set_current_temperature("---")

    # Update the state in Home Assistant
    await hass.helpers.entity_component.async_update_entity("climate.bsb_lan")

    # Get the state of the climate entity
    state = hass.states.get("climate.bsb_lan")

    # Assert that the current_temperature attribute is None
    assert state.attributes["current_temperature"] is None

Yeah I will fix the merge conflict. Accidentally fixed a bug twice.

[joostlek]

But you can repatch the object to return "---" righjt

[home-assistant]

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[joostlek]

Oh and they are failing