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ESP32, RP2040, LibreTiny and host could not receive a compressed image; only the ESP8266 can, because its bootloader inflates a gzip file at reboot. This inflates a raw deflate stream on the fly through a 4 KB ring window that also serves as the output buffer, so the device never holds the whole image. The CLI offers a new client feature bit; a device whose backend has no gzip support and has the inflater compiled answers with a new server bit once the session memory is in hand, then the CLI sends a 4 KB window deflate stream and the MD5 of the inflated image. On allocation failure the device declines the bit and the upload stays uncompressed. Old CLIs and old devices never set the bits, so both directions stay compatible; the ESP8266 keeps its gzip path and the CLI prefers gzip when a device offers both. The decoder is uzlib's tinflate.c (zlib licence) trimmed to raw deflate.
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 |