Add test to AudioSlidersInteractor

/*

 * 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

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package com.android.systemui.volume.panel.component.volume.domain.interactor

import android.media.AudioManager

import android.testing.TestableLooper

import androidx.test.ext.junit.runners.AndroidJUnit4

import androidx.test.filters.SmallTest

import com.android.settingslib.volume.shared.model.AudioStream

import com.android.systemui.SysuiTestCase

import com.android.systemui.coroutines.collectLastValue

import com.android.systemui.kosmos.Kosmos

import com.android.systemui.kosmos.testScope

import com.android.systemui.testKosmos

import com.android.systemui.volume.data.repository.audioRepository

import com.android.systemui.volume.panel.component.volume.domain.model.SliderType

import com.google.common.truth.Truth.assertThat

import kotlinx.coroutines.ExperimentalCoroutinesApi

import kotlinx.coroutines.test.runCurrent

import kotlinx.coroutines.test.runTest

import org.junit.Before

import org.junit.Test

import org.junit.runner.RunWith

@OptIn(ExperimentalCoroutinesApi::class)

@SmallTest

@RunWith(AndroidJUnit4::class)

@TestableLooper.RunWithLooper(setAsMainLooper = true)

class AudioSlidersInteractorTest : SysuiTestCase() {

    private val kosmos = testKosmos()

    private lateinit var underTest: AudioSlidersInteractor

    @Before

    fun setUp() =

        with(kosmos) {

            audioRepository.setMode(AudioManager.MODE_NORMAL)

            underTest = audioSlidersInteractor

        }

    @Test

    fun shouldAddAllStreams_notInCall() =

        with(kosmos) {

            testScope.runTest {

                val sliders by collectLastValue(underTest.volumePanelSliders)

                runCurrent()

                assertThat(sliders).isEqualTo(

                    mutableListOf(

                        AudioManager.STREAM_MUSIC,

                        AudioManager.STREAM_VOICE_CALL,

                        AudioManager.STREAM_RING,

                        AudioManager.STREAM_NOTIFICATION,

                        AudioManager.STREAM_ALARM

                    ).map { SliderType.Stream(AudioStream(it)) })

            }

        }

    @Test

    fun shouldAddAllStreams_inCall() =

        with(kosmos) {

            testScope.runTest {

                audioRepository.setMode(AudioManager.MODE_IN_CALL)

                val sliders by collectLastValue(underTest.volumePanelSliders)

                runCurrent()

                // Call stream is before music stream while in call.

                assertThat(sliders).isEqualTo(

                    mutableListOf(

                        AudioManager.STREAM_VOICE_CALL,

                        AudioManager.STREAM_MUSIC,

                        AudioManager.STREAM_RING,

                        AudioManager.STREAM_NOTIFICATION,

                        AudioManager.STREAM_ALARM

                    ).map { SliderType.Stream(AudioStream(it)) })

            }

        }

}