| /* |
| * |
| * Copyright (c) 2023 Project CHIP Authors |
| * Copyright (c) 2019-2023 Google LLC. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package chip.tlv |
| |
| import com.google.common.truth.Truth.assertThat |
| import java.math.BigInteger |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| |
| // Extracted from a Newman device during a pairing flow. Represents a fabric |
| // ID and keys for the fabric 7885a14c693bf1cb. |
| private val fabricConfig = |
| """ |
| D50000050001002701CBF13B694CA18578360 |
| 21525010110240201300310149BF1430B26F5 |
| E4BBF380D3DB855BA1300414E0E8BAA1CAC6E |
| 8E7216D720BD13C61C5E0E7B9012405002406 |
| 00181818 |
| """ |
| .trimIndent() |
| .replace("\n", "") |
| .chunked(2) |
| .map { it.toInt(16) and 0xFF } |
| .map { it.toByte() } |
| .toByteArray() |
| |
| @RunWith(JUnit4::class) |
| class TlvWriterTest { |
| private fun String.octetsToByteArray(): ByteArray = |
| replace(" ", "").chunked(2).map { it.toInt(16) and 0xFF }.map { it.toByte() }.toByteArray() |
| |
| @Test |
| fun encodingFabricConfig_allElements() { |
| val encodedTlv = |
| TlvWriter(fabricConfig.size) |
| .startStructure(FullyQualifiedTag(6, 0u, 5u, 1u)) |
| .put(ContextSpecificTag(1), BigInteger("7885a14c693bf1cb", 16).toLong().toULong()) |
| .startArray(ContextSpecificTag(2)) |
| .startStructure(AnonymousTag) |
| .put(ContextSpecificTag(1), 0x1001u) |
| .put(ContextSpecificTag(2), 0x01u) |
| .put(ContextSpecificTag(3), "149BF1430B26F5E4BBF380D3DB855BA1".octetsToByteArray()) |
| .put(ContextSpecificTag(4), "E0E8BAA1CAC6E8E7216D720BD13C61C5E0E7B901".octetsToByteArray()) |
| .put(ContextSpecificTag(5), 0u) |
| .put(ContextSpecificTag(6), 0u) |
| .endStructure() |
| .endArray() |
| .endStructure() |
| .validateTlv() |
| .getEncoded() |
| |
| assertThat(encodedTlv).isEqualTo(fabricConfig) |
| } |
| } |