Node / meshtastic / Meshtastic-Android / files / feature / firmware / src / commonTest / kotlin / org / meshtastic / feature / firmware / ota / dfu / DfuCrc32Test.kt

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T8b949e/*

* Copyright (c) 2026 Meshtastic LLC

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <https://www.gnu.org/licenses/>.

*/

Tff7b72package T7ee787org.meshtastic.feature.firmware.ota.dfu

Tff7b72import T7ee787kotlin.test.Test

Tff7b72import T7ee787kotlin.test.assertEquals

Tff7b72class T56d364DfuCrc32Test Tb4b4b4{

Tf0883e@Test

Tff7b72fun Td2a8fftestChecksumCalculationTb4b4b4(Tb4b4b4) Tb4b4b4{

T8b949e// Simple test for known string "123456789"

Tff7b72val Te6edf3data Tff7b72= Ta5d6ff"Ta5d6ff123456789Ta5d6ff"Tb4b4b4.Te6edf3encodeToByteArrayTb4b4b4(Tb4b4b4)

Tff7b72val Te6edf3crc Tff7b72= Te6edf3DfuCrc32Tb4b4b4.Te6edf3calculateTb4b4b4(Te6edf3dataTb4b4b4)

T8b949e// Expected CRC32 for "123456789" is 0xCBF43926

Te6edf3assertEqualsTb4b4b4(T79c0ff0Te6edf3xCBF43926Tb4b4b4.Te6edf3toIntTb4b4b4(Tb4b4b4)Tb4b4b4, Te6edf3crcTb4b4b4)

Tb4b4b4}

Tf0883e@Test

Tff7b72fun Td2a8fftestChecksumCalculationWithSeedTb4b4b4(Tb4b4b4) Tb4b4b4{

T8b949e// Splitting "123456789" into "1234" and "56789"

Tff7b72val Te6edf3part1 Tff7b72= Ta5d6ff"Ta5d6ff1234Ta5d6ff"Tb4b4b4.Te6edf3encodeToByteArrayTb4b4b4(Tb4b4b4)

Tff7b72val Te6edf3part2 Tff7b72= Ta5d6ff"Ta5d6ff56789Ta5d6ff"Tb4b4b4.Te6edf3encodeToByteArrayTb4b4b4(Tb4b4b4)

Tff7b72val Te6edf3crc1 Tff7b72= Te6edf3DfuCrc32Tb4b4b4.Te6edf3calculateTb4b4b4(Te6edf3part1Tb4b4b4)

Tff7b72val Te6edf3crc2 Tff7b72= Te6edf3DfuCrc32Tb4b4b4.Te6edf3calculateTb4b4b4(Te6edf3part2Tb4b4b4, Te6edf3seed Tff7b72= Te6edf3crc1Tb4b4b4)

Te6edf3assertEqualsTb4b4b4(T79c0ff0Te6edf3xCBF43926Tb4b4b4.Te6edf3toIntTb4b4b4(Tb4b4b4)Tb4b4b4, Te6edf3crc2Tb4b4b4)

Tb4b4b4}

Tb4b4b4}