/*
 * 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.test.statemachine;

import static androidx.test.InstrumentationRegistry.getInstrumentation;

import static com.android.internal.net.eap.test.EapTestUtils.getDummyEapSessionConfig;
import static com.android.internal.net.eap.test.message.EapTestMessageDefinitions.EAP_SUCCESS_PACKET;

import static org.junit.Assert.assertTrue;

import android.content.Context;
import android.net.eap.test.EapSessionConfig;

import com.android.internal.net.eap.test.EapResult;
import com.android.internal.net.eap.test.EapResult.EapError;
import com.android.internal.net.eap.test.exceptions.EapInvalidRequestException;
import com.android.internal.net.eap.test.statemachine.EapStateMachine.CreatedState;
import com.android.internal.net.eap.test.statemachine.EapStateMachine.FailureState;
import com.android.internal.net.eap.test.statemachine.EapStateMachine.SuccessState;

import org.junit.Before;
import org.junit.Test;

import java.security.SecureRandom;

public class EapStateMachineTest {
    private Context mContext;
    private EapSessionConfig mEapSessionConfig;

    @Before
    public void setUp() {
        mContext = getInstrumentation().getContext();
        mEapSessionConfig = getDummyEapSessionConfig();
    }

    @Test
    public void testEapStateMachineStartState() {
        EapStateMachine eapStateMachine =
                new EapStateMachine(mContext, mEapSessionConfig, new SecureRandom());
        assertTrue(eapStateMachine.getState() instanceof CreatedState);
    }

    @Test
    public void testSuccessStateProcessFails() {
        SuccessState successState =
                new EapStateMachine(mContext, mEapSessionConfig, new SecureRandom())
                .new SuccessState();
        EapResult result = successState.process(EAP_SUCCESS_PACKET);
        assertTrue(result instanceof EapError);

        EapError eapError = (EapError) result;
        assertTrue(eapError.cause instanceof EapInvalidRequestException);
    }

    @Test
    public void testFailureStateProcessFails() {
        FailureState failureState =
                new EapStateMachine(mContext, mEapSessionConfig, new SecureRandom())
                .new FailureState();
        EapResult result = failureState.process(EAP_SUCCESS_PACKET);
        assertTrue(result instanceof EapError);

        EapError eapError = (EapError) result;
        assertTrue(eapError.cause instanceof EapInvalidRequestException);
    }
}