Define skeleton ChallengeState for EAP-AKA'.

Bug: 142668075
Test: updated EapAkaPrimeCreatedStateTest.
Test: updated EapAkaPrimeIdentityStateTest.
Test: added EapAkaPrimeChallengeStateTest.
Test: atest FrameworksIkeTests
Change-Id: I7b36c48859ca0c665736f8c7ece6eff25dc1a888

4 files changed, 115 insertions, 2 deletions

diff --git a/tests/iketests/src/java/com/android/ike/eap/message/EapTestMessageDefinitions.java b/tests/iketests/src/java/com/android/ike/eap/message/EapTestMessageDefinitions.java
index d95364d9..3ddbe549 100644
--- a/tests/iketests/src/java/com/android/ike/eap/message/EapTestMessageDefinitions.java
+++ b/tests/iketests/src/java/com/android/ike/eap/message/EapTestMessageDefinitions.java
@@ -313,6 +313,8 @@ public class EapTestMessageDefinitions {
     public static final byte[] EAP_AKA_PRIME_CLIENT_ERROR_UNABLE_TO_PROCESS =
             hexStringToByteArray("02" + ID + "000C320E000016010000");
     public static final String EAP_AKA_PRIME_IDENTITY = "36313233343536373839303132333435";
+    public static final byte[] EAP_AKA_PRIME_IDENTITY_BYTES =
+            hexStringToByteArray(EAP_AKA_PRIME_IDENTITY);
     public static final byte[] EAP_AKA_PRIME_IDENTITY_RESPONSE =
             hexStringToByteArray(
                     "02" + ID + "001C" // EAP-Response | ID | length in bytes
diff --git a/tests/iketests/src/java/com/android/ike/eap/statemachine/EapAkaPrimeChallengeStateTest.java b/tests/iketests/src/java/com/android/ike/eap/statemachine/EapAkaPrimeChallengeStateTest.java
new file mode 100644
index 00000000..8eac86b9
--- /dev/null
+++ b/tests/iketests/src/java/com/android/ike/eap/statemachine/EapAkaPrimeChallengeStateTest.java
@@ -0,0 +1,111 @@
+/*
+ * 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.ike.eap.statemachine;
+
+import static com.android.ike.eap.message.EapData.EAP_TYPE_AKA_PRIME;
+import static com.android.ike.eap.message.EapMessage.EAP_CODE_REQUEST;
+import static com.android.ike.eap.message.EapTestMessageDefinitions.EAP_AKA_PRIME_IDENTITY_BYTES;
+import static com.android.ike.eap.message.EapTestMessageDefinitions.EAP_AKA_PRIME_IDENTITY_RESPONSE;
+import static com.android.ike.eap.message.EapTestMessageDefinitions.ID_INT;
+import static com.android.ike.eap.message.EapTestMessageDefinitions.IMSI;
+import static com.android.ike.eap.message.simaka.EapAkaTypeData.EAP_AKA_CHALLENGE;
+import static com.android.ike.eap.message.simaka.EapAkaTypeData.EAP_AKA_IDENTITY;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import com.android.ike.eap.EapResult.EapResponse;
+import com.android.ike.eap.message.EapData;
+import com.android.ike.eap.message.EapMessage;
+import com.android.ike.eap.message.simaka.EapAkaPrimeTypeData;
+import com.android.ike.eap.message.simaka.EapAkaTypeData;
+import com.android.ike.eap.message.simaka.EapSimAkaAttribute.AtAnyIdReq;
+import com.android.ike.eap.message.simaka.EapSimAkaTypeData.DecodeResult;
+import com.android.ike.eap.statemachine.EapAkaPrimeMethodStateMachine.ChallengeState;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+
+public class EapAkaPrimeChallengeStateTest extends EapAkaPrimeStateTest {
+    @Before
+    public void setUp() {
+        super.setUp();
+
+        mStateMachine.transitionTo(mStateMachine.new ChallengeState());
+    }
+
+    @Test
+    public void testTransitionWithEapIdentity() throws Exception {
+        mStateMachine.transitionTo(mStateMachine.new CreatedState());
+
+        EapData eapData = new EapData(EAP_TYPE_AKA_PRIME, DUMMY_EAP_TYPE_DATA);
+        EapMessage eapMessage = new EapMessage(EAP_CODE_REQUEST, ID_INT, eapData);
+
+        DecodeResult<EapAkaTypeData> decodeResult =
+                new DecodeResult<>(new EapAkaPrimeTypeData(EAP_AKA_CHALLENGE, new ArrayList<>()));
+        when(mMockTypeDataDecoder.decode(eq(DUMMY_EAP_TYPE_DATA))).thenReturn(decodeResult);
+
+        mStateMachine.process(eapMessage);
+
+        ChallengeState challengeState = (ChallengeState) mStateMachine.getState();
+        assertArrayEquals(EAP_IDENTITY_BYTES, challengeState.mIdentity);
+
+        // decode() is called in CreatedState and ChallengeState
+        verify(mMockTypeDataDecoder, times(2)).decode(eq(DUMMY_EAP_TYPE_DATA));
+    }
+
+    @Test
+    public void testTransitionWithEapAkaPrimeIdentity() throws Exception {
+        mStateMachine.transitionTo(mStateMachine.new CreatedState());
+
+        // Process AKA' Identity Request
+        EapData eapData = new EapData(EAP_TYPE_AKA_PRIME, DUMMY_EAP_TYPE_DATA);
+        EapMessage eapMessage = new EapMessage(EAP_CODE_REQUEST, ID_INT, eapData);
+
+        DecodeResult<EapAkaTypeData> decodeResult =
+                new DecodeResult<>(
+                        new EapAkaPrimeTypeData(EAP_AKA_IDENTITY, Arrays.asList(new AtAnyIdReq())));
+        when(mMockTypeDataDecoder.decode(eq(DUMMY_EAP_TYPE_DATA))).thenReturn(decodeResult);
+        when(mMockTelephonyManager.getSubscriberId()).thenReturn(IMSI);
+
+        EapResponse eapResponse = (EapResponse) mStateMachine.process(eapMessage);
+        assertArrayEquals(EAP_AKA_PRIME_IDENTITY_RESPONSE, eapResponse.packet);
+
+        // decode() is called in CreatedState and IdentityState
+        verify(mMockTypeDataDecoder, times(2)).decode(eq(DUMMY_EAP_TYPE_DATA));
+        verify(mMockTelephonyManager).getSubscriberId();
+
+        // Process AKA' Challenge Request
+        decodeResult =
+                new DecodeResult<>(new EapAkaPrimeTypeData(EAP_AKA_CHALLENGE, new ArrayList<>()));
+        when(mMockTypeDataDecoder.decode(eq(DUMMY_EAP_TYPE_DATA))).thenReturn(decodeResult);
+
+        mStateMachine.process(eapMessage);
+
+        ChallengeState challengeState = (ChallengeState) mStateMachine.getState();
+        assertArrayEquals(EAP_AKA_PRIME_IDENTITY_BYTES, challengeState.mIdentity);
+
+        // decode() called again in IdentityState and ChallengeState
+        verify(mMockTypeDataDecoder, times(4)).decode(eq(DUMMY_EAP_TYPE_DATA));
+    }
+}
diff --git a/tests/iketests/src/java/com/android/ike/eap/statemachine/EapAkaPrimeCreatedStateTest.java b/tests/iketests/src/java/com/android/ike/eap/statemachine/EapAkaPrimeCreatedStateTest.java
index 769f2ed4..8664cdab 100644
--- a/tests/iketests/src/java/com/android/ike/eap/statemachine/EapAkaPrimeCreatedStateTest.java
+++ b/tests/iketests/src/java/com/android/ike/eap/statemachine/EapAkaPrimeCreatedStateTest.java
@@ -35,7 +35,7 @@ import com.android.ike.eap.message.EapMessage;
 import com.android.ike.eap.message.simaka.EapAkaPrimeTypeData;
 import com.android.ike.eap.message.simaka.EapAkaTypeData;
 import com.android.ike.eap.message.simaka.EapSimAkaTypeData.DecodeResult;
-import com.android.ike.eap.statemachine.EapAkaMethodStateMachine.ChallengeState;
+import com.android.ike.eap.statemachine.EapAkaPrimeMethodStateMachine.ChallengeState;
 
 import org.junit.Test;
 
diff --git a/tests/iketests/src/java/com/android/ike/eap/statemachine/EapAkaPrimeIdentityStateTest.java b/tests/iketests/src/java/com/android/ike/eap/statemachine/EapAkaPrimeIdentityStateTest.java
index 03f68af1..0ce5a45a 100644
--- a/tests/iketests/src/java/com/android/ike/eap/statemachine/EapAkaPrimeIdentityStateTest.java
+++ b/tests/iketests/src/java/com/android/ike/eap/statemachine/EapAkaPrimeIdentityStateTest.java
@@ -39,7 +39,7 @@ import com.android.ike.eap.message.simaka.EapAkaPrimeTypeData;
 import com.android.ike.eap.message.simaka.EapAkaTypeData;
 import com.android.ike.eap.message.simaka.EapSimAkaAttribute.AtAnyIdReq;
 import com.android.ike.eap.message.simaka.EapSimAkaTypeData.DecodeResult;
-import com.android.ike.eap.statemachine.EapAkaMethodStateMachine.ChallengeState;
+import com.android.ike.eap.statemachine.EapAkaPrimeMethodStateMachine.ChallengeState;
 
 import org.junit.Before;
 import org.junit.Test;