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25 lines
924 B
Python
25 lines
924 B
Python
"""Test template entity."""
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import pytest
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from homeassistant.components.template import template_entity
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from homeassistant.core import HomeAssistant
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from homeassistant.helpers import template
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async def test_template_entity_requires_hass_set(hass: HomeAssistant) -> None:
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"""Test template entity requires hass to be set before accepting templates."""
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entity = template_entity.TemplateEntity(None)
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with pytest.raises(ValueError, match="^hass cannot be None"):
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entity.add_template_attribute("_hello", template.Template("Hello"))
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entity.hass = object()
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with pytest.raises(ValueError, match="^template.hass cannot be None"):
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entity.add_template_attribute("_hello", template.Template("Hello", None))
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tpl_with_hass = template.Template("Hello", entity.hass)
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entity.add_template_attribute("_hello", tpl_with_hass)
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assert len(entity._template_attrs.get(tpl_with_hass, [])) == 1
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