c147e7a4aa
Two Node.js tests that hit the simulation backend WebSocket directly
and inject minimal MicroPython programs via raw-paste REPL:
- test_micropython_i2c_minimal: smallest possible repro. I2C(0)+scan+
single-byte writeto. Used to prove the bug is NOT in the basic I2C
layer — this test passes both before and after the fix.
- test_micropython_i2c_ssd1306_repro: walks the full SSD1306 init
sequence (25-cmd init loop + 6x addr writes + writevto 8B + writevto
1024B). Used to prove the bug is NOT in the cmd sequence or the
writevto path — this test also passes both before and after.
These two tests refuted the original "missing TRANS_DONE IRQ"
hypothesis and pointed the investigation toward the file-load vs
raw-REPL difference, which led to identifying the per-byte _emit
bottleneck in esp32_worker.py.
Run with:
node --experimental-websocket test/test_micropython_i2c_minimal/test.mjs \
--backend=http://localhost:3080 --timeout=120
Requires the velxio container (or local backend with QEMU libs) on
the given backend URL.
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|---|---|---|
| .. | ||
| autosearch | ||
| backend | ||
| esp32 | ||
| esp32-emulator | ||
| esp32_cam | ||
| multi_board | ||
| multi_board_esp32 | ||
| pi3_console_boot | ||
| pi3_protocols | ||
| pi_arduino_serial | ||
| pico_doom_demo | ||
| test-esp32-cam | ||
| test-esp32-p4 | ||
| test_100_days | ||
| test_Raspberry_Pi_Pico_W | ||
| test_chip_backend_runtime | ||
| test_circuit | ||
| test_custom_chips | ||
| test_custom_chips_boards | ||
| test_epaper | ||
| test_intel | ||
| test_micropython_i2c_minimal | ||
| test_micropython_i2c_ssd1306_repro | ||
| docker-errors-2026-04-19.md | ||