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Extend interrupt_pin support to MCP23008, MCP23017, MCP23S08, MCP23S17, and PI4IOE5V6408 GPIO expander components. Same approach as PCF8574/PCA9554: when configured, the component disables its loop and only wakes on interrupt, and the cache stays valid between interrupts so binary sensors return from cache instead of doing I2C/SPI reads every loop iteration. For MCP23xxx, the interrupt_pin config and C++ logic lives in the shared MCP23XXXBase template class, so all four variants (I2C 8/16-pin, SPI 8/16-pin) inherit it automatically. Inspired by jesserockz's work in #11959 which proposed a more comprehensive interrupt-driven approach with per-pin interrupt status register reading. This implementation takes a simpler path by leveraging the existing CachedGpioExpander cache invalidation mechanism.
Tests for ESPHome
This directory contains some tests for ESPHome.
At the moment, all the tests only work by simply executing
esphome over some YAML files that are made to test
whether the yaml gets converted to the proper C++ code.
Of course this is all just very high-level and things like unit tests would be much better. So if you have time and know how to set up a unit testing framework for python, please do give it a try.
When adding entries in test_.yaml files we usually need only
one file updated, unless conflicting code is generated for
different configurations, e.g. wifi and ethernet cannot
be tested on the same device.
Current test_.yaml file contents.
| Test name | Platform | Network | BLE |
|---|---|---|---|
| test1.yaml | ESP32 | wifi | None |
| test2.yaml | ESP32 | ethernet | esp32_ble_tracker |
| test3.yaml | ESP8266 | wifi | N/A |
| test4.yaml | ESP32 | ethernet | None |
| test5.yaml | ESP32 | wifi | ble_server |
| test6.yaml | RP2040 | wifi | N/A |
| test7.yaml | ESP32-C3 | wifi | N/A |
| test8.yaml | ESP32-S3 | wifi | None |
| test10.yaml | ESP32 | wifi | None |