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/*
* Copyright (C) 2019 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 com.android.internal.net.eap.message.mschapv2;
import static com.android.internal.net.eap.message.mschapv2.EapMsChapV2PacketDefinitions.CHALLENGE_BYTES;
import static com.android.internal.net.eap.message.mschapv2.EapMsChapV2PacketDefinitions.CHALLENGE_REQUEST_LONG_MS_LENGTH;
import static com.android.internal.net.eap.message.mschapv2.EapMsChapV2PacketDefinitions.CHALLENGE_REQUEST_SHORT_CHALLENGE;
import static com.android.internal.net.eap.message.mschapv2.EapMsChapV2PacketDefinitions.CHALLENGE_REQUEST_SHORT_MS_LENGTH;
import static com.android.internal.net.eap.message.mschapv2.EapMsChapV2PacketDefinitions.CHALLENGE_REQUEST_WRONG_OP_CODE;
import static com.android.internal.net.eap.message.mschapv2.EapMsChapV2PacketDefinitions.EAP_MSCHAP_V2_CHALLENGE_REQUEST;
import static com.android.internal.net.eap.message.mschapv2.EapMsChapV2PacketDefinitions.ID_INT;
import static com.android.internal.net.eap.message.mschapv2.EapMsChapV2PacketDefinitions.SERVER_NAME_BYTES;
import static com.android.internal.net.eap.message.mschapv2.EapMsChapV2TypeData.EAP_MSCHAP_V2_CHALLENGE;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import com.android.internal.net.eap.EapResult.EapError;
import com.android.internal.net.eap.exceptions.mschapv2.EapMsChapV2ParsingException;
import com.android.internal.net.eap.message.mschapv2.EapMsChapV2TypeData.EapMsChapV2ChallengeRequest;
import com.android.internal.net.eap.message.mschapv2.EapMsChapV2TypeData.EapMsChapV2TypeDataDecoder;
import com.android.internal.net.eap.message.mschapv2.EapMsChapV2TypeData.EapMsChapV2TypeDataDecoder.DecodeResult;
import org.junit.Before;
import org.junit.Test;
import java.nio.BufferUnderflowException;
public class EapMsChapV2ChallengeRequestTest {
private static final String TAG = EapMsChapV2ChallengeRequestTest.class.getSimpleName();
private EapMsChapV2TypeDataDecoder mTypeDataDecoder;
@Before
public void setUp() {
mTypeDataDecoder = new EapMsChapV2TypeDataDecoder();
}
@Test
public void testDecodeChallengeRequest() {
DecodeResult<EapMsChapV2ChallengeRequest> result =
mTypeDataDecoder.decodeChallengeRequest(TAG, EAP_MSCHAP_V2_CHALLENGE_REQUEST);
assertTrue(result.isSuccessfulDecode());
EapMsChapV2ChallengeRequest challengeRequest = result.eapTypeData;
assertEquals(EAP_MSCHAP_V2_CHALLENGE, challengeRequest.opCode);
assertEquals(ID_INT, challengeRequest.msChapV2Id);
assertEquals(EAP_MSCHAP_V2_CHALLENGE_REQUEST.length, challengeRequest.msLength);
assertArrayEquals(CHALLENGE_BYTES, challengeRequest.challenge);
assertArrayEquals(SERVER_NAME_BYTES, challengeRequest.name);
}
@Test
public void testDecodeChallengeRequestWrongOpCode() {
DecodeResult<EapMsChapV2ChallengeRequest> result =
mTypeDataDecoder.decodeChallengeRequest(TAG, CHALLENGE_REQUEST_WRONG_OP_CODE);
assertFalse(result.isSuccessfulDecode());
EapError eapError = result.eapError;
assertTrue(eapError.cause instanceof EapMsChapV2ParsingException);
}
@Test
public void testDecodeChallengeRequestShortChallenge() {
DecodeResult<EapMsChapV2ChallengeRequest> result =
mTypeDataDecoder.decodeChallengeRequest(TAG, CHALLENGE_REQUEST_SHORT_CHALLENGE);
assertFalse(result.isSuccessfulDecode());
EapError eapError = result.eapError;
assertTrue(eapError.cause instanceof EapMsChapV2ParsingException);
}
@Test
public void testDecodeChallengeRequestShortMsLength() {
DecodeResult<EapMsChapV2ChallengeRequest> result =
mTypeDataDecoder.decodeChallengeRequest(TAG, CHALLENGE_REQUEST_SHORT_MS_LENGTH);
assertFalse(result.isSuccessfulDecode());
EapError eapError = result.eapError;
assertTrue(eapError.cause instanceof EapMsChapV2ParsingException);
}
@Test
public void testDecodeChallengeRequestLongMsLength() {
DecodeResult<EapMsChapV2ChallengeRequest> result =
mTypeDataDecoder.decodeChallengeRequest(TAG, CHALLENGE_REQUEST_LONG_MS_LENGTH);
assertFalse(result.isSuccessfulDecode());
EapError eapError = result.eapError;
assertTrue(eapError.cause instanceof BufferUnderflowException);
}
@Test
public void testEncodeChallengeRequestFails() throws Exception {
EapMsChapV2ChallengeRequest challengeRequest =
new EapMsChapV2ChallengeRequest(
ID_INT,
EAP_MSCHAP_V2_CHALLENGE_REQUEST.length,
CHALLENGE_BYTES,
SERVER_NAME_BYTES);
try {
challengeRequest.encode();
fail("Expected UnsupportedOperationException for encoding a Challenge Request");
} catch (UnsupportedOperationException expected) {
}
}
}
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