Technician tool v0.8

Imported from the Google Drive folder 004-technician_tool/v0.8.

tests/test_engine.py

@@ -247,3 +247,13 @@ def test_live_brownout_loop_is_a_power_problem():
     assert top.finding.rule_id == "reboot.brownout" and top.finding.count >= 5
     assert "reboot.loop" in {c.rule_id for c in top.consequences}
     assert r.verdict.startswith("Problem: Power supply")
+
+
+@pytest.mark.parametrize("line", [
+    "E (2893) wifi:sta is connecting, return error",
+    "E (2892) chip[DL]: esp_wifi_connect() failed: ESP_ERR_WIFI_CONN",
+    "E (5120) chip[DL]: Failed to get configured network when updating network status: Error ESP32:0x0500300F",
+])
+def test_harmless_wifi_start_errors_are_not_reported(line):
+    _, r = run(BOOT + APP + [line])
+    assert r.roots == [] and "Unrecognised" not in r.to_text()