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/*
* Copyright (C) 2020 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.vcn;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import android.net.NetworkCapabilities;
import android.net.TunnelConnectionParams;
import android.net.vcn.persistablebundleutils.TunnelConnectionParamsUtilsTest;
import androidx.test.filters.SmallTest;
import androidx.test.runner.AndroidJUnit4;
import org.junit.Test;
import org.junit.runner.RunWith;
import java.util.Arrays;
import java.util.concurrent.TimeUnit;
@RunWith(AndroidJUnit4.class)
@SmallTest
public class VcnGatewayConnectionConfigTest {
// Public for use in VcnGatewayConnectionTest
public static final int[] EXPOSED_CAPS =
new int[] {
NetworkCapabilities.NET_CAPABILITY_INTERNET, NetworkCapabilities.NET_CAPABILITY_MMS
};
public static final int[] UNDERLYING_CAPS = new int[] {NetworkCapabilities.NET_CAPABILITY_DUN};
static {
Arrays.sort(EXPOSED_CAPS);
Arrays.sort(UNDERLYING_CAPS);
}
public static final long[] RETRY_INTERVALS_MS =
new long[] {
TimeUnit.SECONDS.toMillis(5),
TimeUnit.SECONDS.toMillis(30),
TimeUnit.MINUTES.toMillis(1),
TimeUnit.MINUTES.toMillis(5),
TimeUnit.MINUTES.toMillis(15),
TimeUnit.MINUTES.toMillis(30)
};
public static final int MAX_MTU = 1360;
public static final TunnelConnectionParams TUNNEL_CONNECTION_PARAMS =
TunnelConnectionParamsUtilsTest.buildTestParams();
public static final String GATEWAY_CONNECTION_NAME_PREFIX = "gatewayConnectionName-";
private static int sGatewayConnectionConfigCount = 0;
// Public for use in VcnGatewayConnectionTest
public static VcnGatewayConnectionConfig buildTestConfig() {
return buildTestConfigWithExposedCaps(EXPOSED_CAPS);
}
private static VcnGatewayConnectionConfig.Builder newBuilder() {
// Append a unique identifier to the name prefix to guarantee that all created
// VcnGatewayConnectionConfigs have a unique name (required by VcnConfig).
return new VcnGatewayConnectionConfig.Builder(
GATEWAY_CONNECTION_NAME_PREFIX + sGatewayConnectionConfigCount++,
TUNNEL_CONNECTION_PARAMS);
}
// Public for use in VcnGatewayConnectionTest
public static VcnGatewayConnectionConfig buildTestConfigWithExposedCaps(int... exposedCaps) {
final VcnGatewayConnectionConfig.Builder builder =
newBuilder().setRetryIntervalsMs(RETRY_INTERVALS_MS).setMaxMtu(MAX_MTU);
for (int caps : exposedCaps) {
builder.addExposedCapability(caps);
}
for (int caps : UNDERLYING_CAPS) {
builder.addRequiredUnderlyingCapability(caps);
}
return builder.build();
}
@Test
public void testBuilderRequiresNonNullGatewayConnectionName() {
try {
new VcnGatewayConnectionConfig.Builder(
null /* gatewayConnectionName */, TUNNEL_CONNECTION_PARAMS)
.build();
fail("Expected exception due to invalid gateway connection name");
} catch (NullPointerException e) {
}
}
@Test
public void testBuilderRequiresNonNullTunnelConnectionParams() {
try {
new VcnGatewayConnectionConfig.Builder(
GATEWAY_CONNECTION_NAME_PREFIX, null /* tunnelConnectionParams */)
.build();
fail("Expected exception due to the absence of tunnel connection parameters");
} catch (NullPointerException e) {
}
}
@Test
public void testBuilderRequiresNonEmptyExposedCaps() {
try {
newBuilder()
.addRequiredUnderlyingCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
.build();
fail("Expected exception due to invalid exposed capabilities");
} catch (IllegalArgumentException e) {
}
}
@Test
public void testBuilderRequiresNonNullRetryInterval() {
try {
newBuilder().setRetryIntervalsMs(null);
fail("Expected exception due to invalid retryIntervalMs");
} catch (IllegalArgumentException e) {
}
}
@Test
public void testBuilderRequiresNonEmptyRetryInterval() {
try {
newBuilder().setRetryIntervalsMs(new long[0]);
fail("Expected exception due to invalid retryIntervalMs");
} catch (IllegalArgumentException e) {
}
}
@Test
public void testBuilderRequiresValidMtu() {
try {
newBuilder().setMaxMtu(VcnGatewayConnectionConfig.MIN_MTU_V6 - 1);
fail("Expected exception due to invalid mtu");
} catch (IllegalArgumentException e) {
}
}
@Test
public void testBuilderAndGetters() {
final VcnGatewayConnectionConfig config = buildTestConfig();
assertTrue(config.getGatewayConnectionName().startsWith(GATEWAY_CONNECTION_NAME_PREFIX));
int[] exposedCaps = config.getExposedCapabilities();
Arrays.sort(exposedCaps);
assertArrayEquals(EXPOSED_CAPS, exposedCaps);
int[] underlyingCaps = config.getRequiredUnderlyingCapabilities();
Arrays.sort(underlyingCaps);
assertArrayEquals(UNDERLYING_CAPS, underlyingCaps);
assertEquals(TUNNEL_CONNECTION_PARAMS, config.getTunnelConnectionParams());
assertArrayEquals(RETRY_INTERVALS_MS, config.getRetryIntervalsMs());
assertEquals(MAX_MTU, config.getMaxMtu());
}
@Test
public void testPersistableBundle() {
final VcnGatewayConnectionConfig config = buildTestConfig();
assertEquals(config, new VcnGatewayConnectionConfig(config.toPersistableBundle()));
}
}
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