Files
esphome/tests
J. Nick Koston 885d7c3938 [core] Fix uint32_t underflow in WarnIfComponentBlockingGuard::finish()
When curr_time (from millis()) is less than started_ (the `now` passed
to scheduler.call()), the subtraction wraps to a huge value (~4 billion).
This triggers spurious blocking warnings with nonsensical times.

This can happen when the scheduler's execute_item_() returns a millis()
value that subsequent items use as their guard start, but the next
scheduler.call() passes a `now` value from a slightly different source.

Fix by skipping the blocking check when curr_time < started_ (underflow).

Also restore the scheduler firing benchmark to use intervals with
monotonically increasing fake time, now that the guard handles underflow.
2026-03-17 01:10:57 -10:00
..
2022-09-06 15:48:01 +12:00
2023-09-12 07:13:24 +12:00

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