Add a functional test for no-desktop-task-limit

/*

 * Copyright (C) 2024 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.wm.shell.functional

import android.platform.test.annotations.Postsubmit

import com.android.wm.shell.scenarios.OpenUnlimitedApps

import org.junit.runner.RunWith

import org.junit.runners.BlockJUnit4ClassRunner

/* Functional test for [OpenUnlimitedApps]. */

@RunWith(BlockJUnit4ClassRunner::class)

@Postsubmit

class OpenUnlimitedAppsTest : OpenUnlimitedApps()

/*

 * Copyright (C) 2024 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.wm.shell.scenarios

import android.app.Instrumentation

import android.tools.traces.parsers.WindowManagerStateHelper

import androidx.test.platform.app.InstrumentationRegistry

import androidx.test.uiautomator.UiDevice

import com.android.launcher3.tapl.LauncherInstrumentation

import com.android.server.wm.flicker.helpers.DesktopModeAppHelper

import com.android.server.wm.flicker.helpers.MailAppHelper

import com.android.server.wm.flicker.helpers.SimpleAppHelper

import com.android.window.flags.Flags

import com.android.wm.shell.shared.desktopmode.DesktopModeStatus

import org.junit.After

import org.junit.Assume

import org.junit.Before

import org.junit.Ignore

import org.junit.Test

/**

 * Base scenario test for opening many apps on the device without the window limit.

 */

@Ignore("Test Base Class")

abstract class OpenUnlimitedApps()

{

    private val instrumentation: Instrumentation = InstrumentationRegistry.getInstrumentation()

    private val tapl = LauncherInstrumentation()

    private val wmHelper = WindowManagerStateHelper(instrumentation)

    private val device = UiDevice.getInstance(instrumentation)

    private val testApp = DesktopModeAppHelper(SimpleAppHelper(instrumentation))

    private val mailApp = DesktopModeAppHelper(MailAppHelper(instrumentation))

    private val maxNum = DesktopModeStatus.getMaxTaskLimit(instrumentation.context)

    @Before

    fun setup() {

        Assume.assumeTrue(Flags.enableDesktopWindowingMode() && tapl.isTablet)

        Assume.assumeTrue(maxNum == 0)

        testApp.enterDesktopWithDrag(wmHelper, device)

    }

    @Test

    open fun openUnlimitedApps() {

        // The maximum number of active tasks is infinite. We here use 12 as a large enough number.

        val openTaskNum = 12

        // Launch new [openTaskNum] tasks.

        for (i in 1..openTaskNum) {

            mailApp.launchViaIntent(wmHelper)

        }

    }

    @After

    fun teardown() {

        testApp.exit(wmHelper)

        mailApp.exit(wmHelper)

    }

}