Merge "Make ResourceIcon#get thread safe" into qt-dev

            mResId = resId;

        }

        public static Icon get(int resId) {

        public static synchronized Icon get(int resId) {

            Icon icon = ICONS.get(resId);

            if (icon == null) {

                icon = new ResourceIcon(resId);

/*

 * 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.systemui.qs.tileimpl

import android.testing.AndroidTestingRunner

import androidx.test.filters.SmallTest

import com.android.systemui.SysuiTestCase

import org.junit.Assert.assertEquals

import org.junit.Test

import org.junit.runner.RunWith

@RunWith(AndroidTestingRunner::class)

@SmallTest

class ResourceIconTest : SysuiTestCase() {

    val resIds = (1..1000).toList()

    @Test

    fun testMultipleThreadedPut() {

        resIds.parallelStream().forEach {

            QSTileImpl.ResourceIcon.get(it)

        }

        resIds.forEach {

            assertEquals(it, (QSTileImpl.ResourceIcon.get(it) as QSTileImpl.ResourceIcon).mResId)

        }

    }

}