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The labels were there to help humans scanning the generated main.cpp
find component boundaries, but they were:
- Unreliable: CORE.flush_tasks can interleave coroutines on each
await, so a component's later statements can land in another
component's begin/end block.
- Load-bearing for a pile of complexity: a tuple return from
_wrap_in_iifes, a has_iife flag, a comment-only detector to
suppress trailing end-markers for comment-only components, and
a brittle `"[]()" in line` check that could false-positive on
YAML dumps containing lambda syntax.
- Not actually needed — generated main.cpp is a build artifact
rarely read by anyone, and cg.LineComment("name:") already puts
the component name at the start of its block.
ComponentMarker stays as a pure chunking sentinel — it tells
cpp_main_section where component boundaries are (for grouping) but
produces no C++ output. _wrap_in_iifes returns a plain list again.
Added a regression test for the now-defused case of a comment
containing "[]()" that was previously flagged by review.
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 |