[gpio_expander][pcf8574][pca9554][tca9555][pca6416a][pi4ioe5v6408][mcp23016][mcp23xxx_base] Reject unsupported interrupt_pin options (inverted, allow_other_uses) (#18472)

tests/component_tests/gpio_expander/test_init.py

@@ -0,0 +1,61 @@
+"""Tests for the shared io expander interrupt_pin validator."""
+
+from __future__ import annotations
+
+import importlib
+
+import pytest
+
+from esphome import config_validation as cv
+from esphome.components.esp32 import KEY_BOARD, KEY_VARIANT, VARIANT_ESP32
+from esphome.components.gpio_expander import validate_interrupt_pin
+from esphome.const import PlatformFramework
+from tests.component_tests.types import SetCoreConfigCallable
+
+
+@pytest.fixture
+def stage_esp32(set_core_config: SetCoreConfigCallable) -> None:
+    set_core_config(
+        PlatformFramework.ESP32_IDF,
+        platform_data={KEY_BOARD: "esp32dev", KEY_VARIANT: VARIANT_ESP32},
+    )
+
+
+def test_plain_pin_accepted(stage_esp32: None) -> None:
+    value = validate_interrupt_pin(
+        {"number": 16, "mode": {"input": True, "pullup": True}}
+    )
+    assert value["number"] == 16
+
+
+def test_inverted_rejected(stage_esp32: None) -> None:
+    with pytest.raises(cv.Invalid, match="'inverted: true' is not supported"):
+        validate_interrupt_pin({"number": 16, "inverted": True})
+
+
+def test_allow_other_uses_rejected(stage_esp32: None) -> None:
+    with pytest.raises(cv.Invalid, match="'allow_other_uses: true' is not supported"):
+        validate_interrupt_pin({"number": 16, "allow_other_uses": True})
+
+
+# mcp23017 covers the shared mcp23xxx_base schema
+@pytest.mark.parametrize(
+    "component",
+    [
+        "pcf8574",
+        "pca9554",
+        "tca9555",
+        "pca6416a",
+        "pi4ioe5v6408",
+        "mcp23016",
+        "mcp23017",
+    ],
+)
+def test_component_schemas_route_through_validator(
+    stage_esp32: None, component: str
+) -> None:
+    module = importlib.import_module(f"esphome.components.{component}")
+    with pytest.raises(cv.Invalid, match="'inverted: true' is not supported"):
+        module.CONFIG_SCHEMA(
+            {"id": "expander_hub", "interrupt_pin": {"number": 16, "inverted": True}}
+        )