/*
 * Copyright (C) 2018 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.keyguard;

import android.content.Context;
import android.content.Intent;
import android.test.suitebuilder.annotation.SmallTest;
import android.testing.AndroidTestingRunner;
import android.testing.TestableLooper;
import android.testing.TestableLooper.RunWithLooper;

import com.android.internal.telephony.IccCardConstants;
import com.android.internal.telephony.TelephonyIntents;
import com.android.systemui.SysuiTestCase;

import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;

import java.util.concurrent.atomic.AtomicBoolean;

@SmallTest
@RunWith(AndroidTestingRunner.class)
// We must run on the main looper because KeyguardUpdateMonitor#mHandler is initialized with
// new Handler(Looper.getMainLooper()).
//
// Using the main looper should be avoided whenever possible, please don't copy this over to
// new tests.
@RunWithLooper(setAsMainLooper = true)
public class KeyguardUpdateMonitorTest extends SysuiTestCase {

    private TestableLooper mTestableLooper;

    @Before
    public void setup() {
        mTestableLooper = TestableLooper.get(this);
    }

    @Test
    public void testIgnoresSimStateCallback_rebroadcast() {
        Intent intent = new Intent(TelephonyIntents.ACTION_SIM_STATE_CHANGED);

        TestableKeyguardUpdateMonitor keyguardUpdateMonitor =
                new TestableKeyguardUpdateMonitor(getContext());

        keyguardUpdateMonitor.mBroadcastReceiver.onReceive(getContext(), intent);
        mTestableLooper.processAllMessages();
        Assert.assertTrue("onSimStateChanged not called",
                keyguardUpdateMonitor.hasSimStateJustChanged());

        intent.putExtra(TelephonyIntents.EXTRA_REBROADCAST_ON_UNLOCK, true);
        keyguardUpdateMonitor.mBroadcastReceiver.onReceive(getContext(), intent);
        mTestableLooper.processAllMessages();
        Assert.assertFalse("onSimStateChanged should have been skipped",
                keyguardUpdateMonitor.hasSimStateJustChanged());
    }

    private class TestableKeyguardUpdateMonitor extends KeyguardUpdateMonitor {
        AtomicBoolean mSimStateChanged = new AtomicBoolean(false);

        protected TestableKeyguardUpdateMonitor(Context context) {
            super(context);
            // Avoid race condition when unexpected broadcast could be received.
            context.unregisterReceiver(mBroadcastReceiver);
        }

        public boolean hasSimStateJustChanged() {
            return mSimStateChanged.getAndSet(false);
        }

        @Override
        protected void handleSimStateChange(int subId, int slotId,
                IccCardConstants.State state) {
            mSimStateChanged.set(true);
            super.handleSimStateChange(subId, slotId, state);
        }
    }
}