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25 lines
829 B
Python
25 lines
829 B
Python
"""Tests for the uart helpers shared by components that own a UART."""
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from esphome.components.uart import subtree_references_uart
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from esphome.core import ID
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def test_finds_a_nested_uart_id() -> None:
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config = {"modbus": [{"id": ID("hub"), "uart_id": ID("bus")}]}
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assert subtree_references_uart(config, "bus")
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def test_ignores_other_uarts_and_other_keys() -> None:
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config = {"modbus": [{"uart_id": ID("other")}], "sensor": [{"id": ID("bus")}]}
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assert not subtree_references_uart(config, "bus")
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def test_finds_another_key() -> None:
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config = {"modbus_tcp_uart": [{"tcp_uart_id": ID("bus")}]}
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assert subtree_references_uart(config, "bus", "tcp_uart_id")
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assert not subtree_references_uart(config, "bus")
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def test_handles_scalars() -> None:
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assert not subtree_references_uart("bus", "bus")
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