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/*
* Copyright (C) 2023 The Android Open Source Project
*
* 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 android.net.thread;
import static com.google.common.io.BaseEncoding.base16;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.assertThrows;
import android.net.thread.ActiveOperationalDataset.Builder;
import android.net.thread.ActiveOperationalDataset.SecurityPolicy;
import android.util.SparseArray;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import androidx.test.filters.SmallTest;
import com.google.common.primitives.Bytes;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.MockitoAnnotations;
/** Unit tests for {@link ActiveOperationalDataset}. */
@SmallTest
@RunWith(AndroidJUnit4.class)
public class ActiveOperationalDatasetTest {
// A valid Thread Active Operational Dataset generated from OpenThread CLI "dataset new":
// Active Timestamp: 1
// Channel: 19
// Channel Mask: 0x07FFF800
// Ext PAN ID: ACC214689BC40BDF
// Mesh Local Prefix: fd64:db12:25f4:7e0b::/64
// Network Key: F26B3153760F519A63BAFDDFFC80D2AF
// Network Name: OpenThread-d9a0
// PAN ID: 0xD9A0
// PSKc: A245479C836D551B9CA557F7B9D351B4
// Security Policy: 672 onrcb
private static final byte[] VALID_DATASET_TLVS =
base16().decode(
"0E080000000000010000000300001335060004001FFFE002"
+ "08ACC214689BC40BDF0708FD64DB1225F47E0B0510F26B31"
+ "53760F519A63BAFDDFFC80D2AF030F4F70656E5468726561"
+ "642D643961300102D9A00410A245479C836D551B9CA557F7"
+ "B9D351B40C0402A0FFF8");
@Before
public void setUp() {
MockitoAnnotations.initMocks(this);
}
private static byte[] addTlv(byte[] dataset, String tlvHex) {
return Bytes.concat(dataset, base16().decode(tlvHex));
}
@Test
public void fromThreadTlvs_containsUnknownTlvs_unknownTlvsRetained() {
byte[] datasetWithUnknownTlvs = addTlv(VALID_DATASET_TLVS, "AA01FFBB020102");
ActiveOperationalDataset dataset1 =
ActiveOperationalDataset.fromThreadTlvs(datasetWithUnknownTlvs);
ActiveOperationalDataset dataset2 =
ActiveOperationalDataset.fromThreadTlvs(dataset1.toThreadTlvs());
SparseArray<byte[]> unknownTlvs = dataset2.getUnknownTlvs();
assertThat(unknownTlvs.size()).isEqualTo(2);
assertThat(unknownTlvs.get(0xAA)).isEqualTo(new byte[] {(byte) 0xFF});
assertThat(unknownTlvs.get(0xBB)).isEqualTo(new byte[] {0x01, 0x02});
assertThat(dataset2).isEqualTo(dataset1);
}
@Test
public void builder_buildWithTooLongTlvs_throwsIllegalState() {
Builder builder = new Builder(ActiveOperationalDataset.fromThreadTlvs(VALID_DATASET_TLVS));
for (int i = 0; i < 10; i++) {
builder.addUnknownTlv(i, new byte[20]);
}
assertThrows(IllegalStateException.class, () -> new Builder().build());
}
@Test
public void builder_setUnknownTlvs_success() {
ActiveOperationalDataset dataset1 =
ActiveOperationalDataset.fromThreadTlvs(VALID_DATASET_TLVS);
SparseArray<byte[]> unknownTlvs = new SparseArray<>(2);
unknownTlvs.put(0x33, new byte[] {1, 2, 3});
unknownTlvs.put(0x44, new byte[] {1, 2, 3, 4});
ActiveOperationalDataset dataset2 =
new ActiveOperationalDataset.Builder(dataset1).setUnknownTlvs(unknownTlvs).build();
assertThat(dataset1.getUnknownTlvs().size()).isEqualTo(0);
assertThat(dataset2.getUnknownTlvs().size()).isEqualTo(2);
assertThat(dataset2.getUnknownTlvs().get(0x33)).isEqualTo(new byte[] {1, 2, 3});
assertThat(dataset2.getUnknownTlvs().get(0x44)).isEqualTo(new byte[] {1, 2, 3, 4});
}
@Test
public void securityPolicy_fromTooShortTlvValue_throwsIllegalArgument() {
assertThrows(
IllegalArgumentException.class,
() -> SecurityPolicy.fromTlvValue(new byte[] {0x01}));
assertThrows(
IllegalArgumentException.class,
() -> SecurityPolicy.fromTlvValue(new byte[] {0x01, 0x02}));
}
@Test
public void securityPolicy_toTlvValue_conversionIsLossLess() {
SecurityPolicy policy1 = new SecurityPolicy(200, new byte[] {(byte) 0xFF, (byte) 0xF8});
SecurityPolicy policy2 = SecurityPolicy.fromTlvValue(policy1.toTlvValue());
assertThat(policy2).isEqualTo(policy1);
}
}
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