[epaper_spi] Metadata, bug fixes, new model (#16950)

tests/component_tests/conftest.py

@@ -104,6 +104,44 @@ def set_component_config() -> Callable[[str, Any], None]:
     return setter
 
 
+@pytest.fixture
+def choose_variant_with_pins() -> Generator[Callable[[list], None]]:
+    """Set the ESP32 variant to the first one on which all the given pins are valid.
+
+    For ESP32 only, since the other platforms do not have variants. The core
+    configuration must already have been set up for an ESP32 target.
+    Using local imports to avoid importing when ESP32 is not the target.
+    """
+    from esphome import config_validation as cv
+    from esphome.components.esp32 import KEY_ESP32, KEY_VARIANT, VARIANTS
+    from esphome.components.esp32.gpio import validate_gpio_pin
+    from esphome.const import CONF_INPUT, CONF_OUTPUT
+    from esphome.pins import gpio_pin_schema
+
+    def chooser(pins: list) -> None:
+        for variant in VARIANTS:
+            try:
+                CORE.data[KEY_ESP32][KEY_VARIANT] = variant
+                for pin in pins:
+                    if pin is not None:
+                        pin = gpio_pin_schema(
+                            {
+                                CONF_INPUT: True,
+                                CONF_OUTPUT: True,
+                            },
+                            internal=True,
+                        )(pin)
+                        validate_gpio_pin(pin)
+                return
+            except cv.Invalid:
+                continue
+        raise cv.Invalid(
+            f"No compatible variant found for pins: {', '.join(map(str, pins))}"
+        )
+
+    yield chooser
+
+
 @pytest.fixture
 def component_fixture_path(request: pytest.FixtureRequest) -> Callable[[str], Path]:
     """Return a function to get absolute paths relative to the component's fixtures directory."""