Node / meshtastic / Meshtastic-Android / files / core / model / src / commonTest / kotlin / org / meshtastic / core / model / util / SfppHasherTest.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.core.model.util

Tff7b72import T7ee787kotlin.test.Test

Tff7b72import T7ee787kotlin.test.assertEquals

Tff7b72import T7ee787kotlin.test.assertNotEquals

Tff7b72class T56d364SfppHasherTest Tb4b4b4{

Tf0883e@Test

Tff7b72fun Td2a8ffoutputIsAlways16BytesTb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3hash Tff7b72= Te6edf3SfppHasherTb4b4b4.Te6edf3computeMessageHashTb4b4b4(Te6edf3byteArrayOfTb4b4b4(T79c0ff1Tb4b4b4, T79c0ff2Tb4b4b4, T79c0ff3Tb4b4b4)Tb4b4b4, Te6edf3to Tff7b72= T79c0ff1T79c0ff0T79c0ff0Tb4b4b4, Te6edf3from Tff7b72= T79c0ff2T79c0ff0T79c0ff0Tb4b4b4, Te6edf3id Tff7b72= T79c0ff1Tb4b4b4)

Te6edf3assertEqualsTb4b4b4(T79c0ff1T79c0ff6Tb4b4b4, Te6edf3hashTb4b4b4.Te6edf3sizeTb4b4b4)

Tb4b4b4}

Tf0883e@Test

Tff7b72fun Td2a8ffemptyPayloadProduces16BytesTb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3hash Tff7b72= Te6edf3SfppHasherTb4b4b4.Te6edf3computeMessageHashTb4b4b4(Te6edf3byteArrayOfTb4b4b4(Tb4b4b4)Tb4b4b4, Te6edf3to Tff7b72= T79c0ff0Tb4b4b4, Te6edf3from Tff7b72= T79c0ff0Tb4b4b4, Te6edf3id Tff7b72= T79c0ff0Tb4b4b4)

Te6edf3assertEqualsTb4b4b4(T79c0ff1T79c0ff6Tb4b4b4, Te6edf3hashTb4b4b4.Te6edf3sizeTb4b4b4)

Tb4b4b4}

Tf0883e@Test

Tff7b72fun Td2a8ffdeterministicOutputTb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3a Tff7b72= Te6edf3SfppHasherTb4b4b4.Te6edf3computeMessageHashTb4b4b4(Te6edf3byteArrayOfTb4b4b4(T79c0ff0Te6edf3xABTb4b4b4.Te6edf3toByteTb4b4b4(Tb4b4b4)Tb4b4b4)Tb4b4b4, Te6edf3to Tff7b72= T79c0ff1Tb4b4b4, Te6edf3from Tff7b72= T79c0ff2Tb4b4b4, Te6edf3id Tff7b72= T79c0ff3Tb4b4b4)

Tff7b72val Te6edf3b Tff7b72= Te6edf3SfppHasherTb4b4b4.Te6edf3computeMessageHashTb4b4b4(Te6edf3byteArrayOfTb4b4b4(T79c0ff0Te6edf3xABTb4b4b4.Te6edf3toByteTb4b4b4(Tb4b4b4)Tb4b4b4)Tb4b4b4, Te6edf3to Tff7b72= T79c0ff1Tb4b4b4, Te6edf3from Tff7b72= T79c0ff2Tb4b4b4, Te6edf3id Tff7b72= T79c0ff3Tb4b4b4)

Te6edf3assertEqualsTb4b4b4(Te6edf3aTb4b4b4.Te6edf3toListTb4b4b4(Tb4b4b4)Tb4b4b4, Te6edf3bTb4b4b4.Te6edf3toListTb4b4b4(Tb4b4b4)Tb4b4b4)

Tb4b4b4}

Tf0883e@Test

Tff7b72fun Td2a8ffdifferentPayloadsProduceDifferentHashesTb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3a Tff7b72= Te6edf3SfppHasherTb4b4b4.Te6edf3computeMessageHashTb4b4b4(Te6edf3byteArrayOfTb4b4b4(T79c0ff1Tb4b4b4)Tb4b4b4, Te6edf3to Tff7b72= T79c0ff1Tb4b4b4, Te6edf3from Tff7b72= T79c0ff2Tb4b4b4, Te6edf3id Tff7b72= T79c0ff3Tb4b4b4)

Tff7b72val Te6edf3b Tff7b72= Te6edf3SfppHasherTb4b4b4.Te6edf3computeMessageHashTb4b4b4(Te6edf3byteArrayOfTb4b4b4(T79c0ff2Tb4b4b4)Tb4b4b4, Te6edf3to Tff7b72= T79c0ff1Tb4b4b4, Te6edf3from Tff7b72= T79c0ff2Tb4b4b4, Te6edf3id Tff7b72= T79c0ff3Tb4b4b4)

Te6edf3assertNotEqualsTb4b4b4(Te6edf3aTb4b4b4.Te6edf3toListTb4b4b4(Tb4b4b4)Tb4b4b4, Te6edf3bTb4b4b4.Te6edf3toListTb4b4b4(Tb4b4b4)Tb4b4b4)

Tb4b4b4}

Tf0883e@Test

Tff7b72fun Td2a8ffdifferentIdsProduceDifferentHashesTb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3payload Tff7b72= Te6edf3byteArrayOfTb4b4b4(T79c0ff0Te6edf3x10Tb4b4b4, T79c0ff0Te6edf3x20Tb4b4b4)

Tff7b72val Te6edf3a Tff7b72= Te6edf3SfppHasherTb4b4b4.Te6edf3computeMessageHashTb4b4b4(Te6edf3payloadTb4b4b4, Te6edf3to Tff7b72= T79c0ff1Tb4b4b4, Te6edf3from Tff7b72= T79c0ff2Tb4b4b4, Te6edf3id Tff7b72= T79c0ff1T79c0ff0T79c0ff0Tb4b4b4)

Tff7b72val Te6edf3b Tff7b72= Te6edf3SfppHasherTb4b4b4.Te6edf3computeMessageHashTb4b4b4(Te6edf3payloadTb4b4b4, Te6edf3to Tff7b72= T79c0ff1Tb4b4b4, Te6edf3from Tff7b72= T79c0ff2Tb4b4b4, Te6edf3id Tff7b72= T79c0ff1T79c0ff0T79c0ff1Tb4b4b4)

Te6edf3assertNotEqualsTb4b4b4(Te6edf3aTb4b4b4.Te6edf3toListTb4b4b4(Tb4b4b4)Tb4b4b4, Te6edf3bTb4b4b4.Te6edf3toListTb4b4b4(Tb4b4b4)Tb4b4b4)

Tb4b4b4}

Tf0883e@Test

Tff7b72fun Td2a8ffdifferentFromProduceDifferentHashesTb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3payload Tff7b72= Te6edf3byteArrayOfTb4b4b4(T79c0ff0Te6edf3x10Tb4b4b4, T79c0ff0Te6edf3x20Tb4b4b4)

Tff7b72val Te6edf3a Tff7b72= Te6edf3SfppHasherTb4b4b4.Te6edf3computeMessageHashTb4b4b4(Te6edf3payloadTb4b4b4, Te6edf3to Tff7b72= T79c0ff1Tb4b4b4, Te6edf3from Tff7b72= T79c0ff2Tb4b4b4, Te6edf3id Tff7b72= T79c0ff3Tb4b4b4)

Tff7b72val Te6edf3b Tff7b72= Te6edf3SfppHasherTb4b4b4.Te6edf3computeMessageHashTb4b4b4(Te6edf3payloadTb4b4b4, Te6edf3to Tff7b72= T79c0ff1Tb4b4b4, Te6edf3from Tff7b72= T79c0ff9T79c0ff9Tb4b4b4, Te6edf3id Tff7b72= T79c0ff3Tb4b4b4)

Te6edf3assertNotEqualsTb4b4b4(Te6edf3aTb4b4b4.Te6edf3toListTb4b4b4(Tb4b4b4)Tb4b4b4, Te6edf3bTb4b4b4.Te6edf3toListTb4b4b4(Tb4b4b4)Tb4b4b4)

Tb4b4b4}

Tf0883e@Test

Tff7b72fun Td2a8ffmaxIntValuesTb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3hash Tff7b72=

Te6edf3SfppHasherTb4b4b4.Te6edf3computeMessageHashTb4b4b4(

Te6edf3byteArrayOfTb4b4b4(T79c0ff0Te6edf3xFFTb4b4b4.Te6edf3toByteTb4b4b4(Tb4b4b4)Tb4b4b4)Tb4b4b4,

Te6edf3to Tff7b72= Tffa657IntTb4b4b4.Te6edf3MAX_VALUETb4b4b4,

Te6edf3from Tff7b72= Tffa657IntTb4b4b4.Te6edf3MAX_VALUETb4b4b4,

Te6edf3id Tff7b72= Tffa657IntTb4b4b4.Te6edf3MAX_VALUETb4b4b4,

Tb4b4b4)

Te6edf3assertEqualsTb4b4b4(T79c0ff1T79c0ff6Tb4b4b4, Te6edf3hashTb4b4b4.Te6edf3sizeTb4b4b4)

Tb4b4b4}

Tf0883e@Test

Tff7b72fun Td2a8fflittleEndianByteOrderTb4b4b4(Tb4b4b4) Tb4b4b4{

T8b949e// Verify the integer 0x04030201 is encoded as [01, 02, 03, 04] (little-endian)

Tff7b72val Te6edf3hashA Tff7b72= Te6edf3SfppHasherTb4b4b4.Te6edf3computeMessageHashTb4b4b4(Te6edf3byteArrayOfTb4b4b4(Tb4b4b4)Tb4b4b4, Te6edf3to Tff7b72= T79c0ff0Te6edf3x04030201Tb4b4b4, Te6edf3from Tff7b72= T79c0ff0Tb4b4b4, Te6edf3id Tff7b72= T79c0ff0Tb4b4b4)

Tff7b72val Te6edf3hashB Tff7b72= Te6edf3SfppHasherTb4b4b4.Te6edf3computeMessageHashTb4b4b4(Te6edf3byteArrayOfTb4b4b4(Tb4b4b4)Tb4b4b4, Te6edf3to Tff7b72= T79c0ff0Te6edf3x01020304Tb4b4b4, Te6edf3from Tff7b72= T79c0ff0Tb4b4b4, Te6edf3id Tff7b72= T79c0ff0Tb4b4b4)

T8b949e// Different byte orderings must produce different hashes

Te6edf3assertNotEqualsTb4b4b4(Te6edf3hashATb4b4b4.Te6edf3toListTb4b4b4(Tb4b4b4)Tb4b4b4, Te6edf3hashBTb4b4b4.Te6edf3toListTb4b4b4(Tb4b4b4)Tb4b4b4)

Tb4b4b4}

Tb4b4b4}