Add Unit tests for IssueRecordingState

/*

 * 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.

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package com.android.systemui.recordissue

import android.testing.TestableLooper

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

import androidx.test.filters.SmallTest

import com.android.systemui.SysuiTestCase

import com.android.systemui.kosmos.Kosmos

import com.android.systemui.settings.userFileManager

import com.android.systemui.settings.userTracker

import com.google.common.truth.Truth

import java.util.concurrent.CountDownLatch

import org.junit.Before

import org.junit.Test

import org.junit.runner.RunWith

@SmallTest

@RunWith(AndroidJUnit4::class)

@TestableLooper.RunWithLooper(setAsMainLooper = true)

class IssueRecordingStateTest : SysuiTestCase() {

    private val kosmos = Kosmos()

    private lateinit var underTest: IssueRecordingState

    @Before

    fun setup() {

        underTest = IssueRecordingState(kosmos.userTracker, kosmos.userFileManager)

    }

    @Test

    fun takeBugreport_isSaved_betweenDifferentSessions() {

        val expected = true

        underTest.takeBugreport = expected

        underTest = IssueRecordingState(kosmos.userTracker, kosmos.userFileManager)

        Truth.assertThat(underTest.takeBugreport).isEqualTo(expected)

    }

    @Test

    fun recordScreen_isSaved_betweenDifferentSessions() {

        val expected = true

        underTest.recordScreen = expected

        underTest = IssueRecordingState(kosmos.userTracker, kosmos.userFileManager)

        Truth.assertThat(underTest.recordScreen).isEqualTo(expected)

    }

    @Test

    fun hasUserApprovedScreenRecording_isTrue_afterBeingMarkedAsCompleted() {

        underTest.markUserApprovalForScreenRecording()

        underTest = IssueRecordingState(kosmos.userTracker, kosmos.userFileManager)

        Truth.assertThat(underTest.hasUserApprovedScreenRecording).isEqualTo(true)

    }

    @Test

    fun tagTitles_areSavedConsistently() {

        val expected = setOf("a", "b", "c")

        underTest.tagTitles = expected

        underTest = IssueRecordingState(kosmos.userTracker, kosmos.userFileManager)

        Truth.assertThat(underTest.tagTitles).isEqualTo(expected)

    }

    @Test

    fun isRecording_callsListeners_onTheValueChanging() {

        val count = CountDownLatch(1)

        val listener = Runnable { count.countDown() }

        underTest.addListener(listener)

        underTest.isRecording = true

        Truth.assertThat(count.count).isEqualTo(0)

    }

    @Test

    fun isRecording_callsOnlyListeners_whoHaveNotBeenRemoved() {

        val count1 = CountDownLatch(1)

        val count2 = CountDownLatch(1)

        val listener1 = Runnable { count1.countDown() }

        val listener2 = Runnable { count2.countDown() }

        underTest.addListener(listener1)

        underTest.removeListener(listener1)

        underTest.addListener(listener2)

        underTest.isRecording = true

        Truth.assertThat(count1.count).isEqualTo(1)

        Truth.assertThat(count2.count).isEqualTo(0)

    }

}