packages/SystemUI/tests/src/com/android/systemui/media/SeekBarObserverTest.kt

/*
 * Copyright (C) 2020 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.media

import android.animation.Animator
import android.animation.ObjectAnimator
import android.testing.AndroidTestingRunner
import android.testing.TestableLooper
import android.view.View
import android.widget.SeekBar
import android.widget.TextView
import androidx.test.filters.SmallTest
import com.android.systemui.R
import com.android.systemui.SysuiTestCase
import com.google.common.truth.Truth.assertThat
import org.junit.Before
import org.junit.Rule
import org.junit.Test
import org.junit.runner.RunWith
import org.mockito.Mock
import org.mockito.Mockito.verify
import org.mockito.junit.MockitoJUnit
import org.mockito.Mockito.`when` as whenever

@SmallTest
@RunWith(AndroidTestingRunner::class)
@TestableLooper.RunWithLooper
class SeekBarObserverTest : SysuiTestCase() {

    private val disabledHeight = 1
    private val enabledHeight = 2

    private lateinit var observer: SeekBarObserver
    @Mock private lateinit var mockSeekbarAnimator: ObjectAnimator
    @Mock private lateinit var mockHolder: MediaViewHolder
    @Mock private lateinit var mockSquigglyProgress: SquigglyProgress
    private lateinit var seekBarView: SeekBar
    private lateinit var scrubbingElapsedTimeView: TextView
    private lateinit var scrubbingTotalTimeView: TextView

    @JvmField @Rule val mockitoRule = MockitoJUnit.rule()

    @Before
    fun setUp() {
        context.orCreateTestableResources
            .addOverride(R.dimen.qs_media_enabled_seekbar_height, enabledHeight)
        context.orCreateTestableResources
            .addOverride(R.dimen.qs_media_disabled_seekbar_height, disabledHeight)

        seekBarView = SeekBar(context)
        seekBarView.progressDrawable = mockSquigglyProgress
        scrubbingElapsedTimeView = TextView(context)
        scrubbingTotalTimeView = TextView(context)
        whenever(mockHolder.seekBar).thenReturn(seekBarView)
        whenever(mockHolder.scrubbingElapsedTimeView).thenReturn(scrubbingElapsedTimeView)
        whenever(mockHolder.scrubbingTotalTimeView).thenReturn(scrubbingTotalTimeView)

        observer = object : SeekBarObserver(mockHolder) {
            override fun buildResetAnimator(targetTime: Int): Animator {
                return mockSeekbarAnimator
            }
        }
    }

    @Test
    fun seekBarGone() {
        // WHEN seek bar is disabled
        val isEnabled = false
        val data = SeekBarViewModel.Progress(isEnabled, false, false, false, null, 0)
        observer.onChanged(data)
        // THEN seek bar shows just a thin line with no text
        assertThat(seekBarView.isEnabled()).isFalse()
        assertThat(seekBarView.getThumb().getAlpha()).isEqualTo(0)
        assertThat(seekBarView.contentDescription).isEqualTo("")
        assertThat(seekBarView.maxHeight).isEqualTo(disabledHeight)
    }

    @Test
    fun seekBarVisible() {
        // WHEN seek bar is enabled
        val isEnabled = true
        val data = SeekBarViewModel.Progress(isEnabled, true, false, false, 3000, 12000)
        observer.onChanged(data)
        // THEN seek bar is visible and thick
        assertThat(seekBarView.getVisibility()).isEqualTo(View.VISIBLE)
        assertThat(seekBarView.maxHeight).isEqualTo(enabledHeight)
    }

    @Test
    fun seekBarProgress() {
        // WHEN part of the track has been played
        val data = SeekBarViewModel.Progress(true, true, true, false, 3000, 120000)
        observer.onChanged(data)
        // THEN seek bar shows the progress
        assertThat(seekBarView.progress).isEqualTo(3000)
        assertThat(seekBarView.max).isEqualTo(120000)

        val desc = context.getString(R.string.controls_media_seekbar_description, "00:03", "02:00")
        assertThat(seekBarView.contentDescription).isEqualTo(desc)
    }

    @Test
    fun seekBarDisabledWhenSeekNotAvailable() {
        // WHEN seek is not available
        val isSeekAvailable = false
        val data = SeekBarViewModel.Progress(true, isSeekAvailable, false, false, 3000, 120000)
        observer.onChanged(data)
        // THEN seek bar is not enabled
        assertThat(seekBarView.isEnabled()).isFalse()
    }

    @Test
    fun seekBarEnabledWhenSeekNotAvailable() {
        // WHEN seek is available
        val isSeekAvailable = true
        val data = SeekBarViewModel.Progress(true, isSeekAvailable, false, false, 3000, 120000)
        observer.onChanged(data)
        // THEN seek bar is not enabled
        assertThat(seekBarView.isEnabled()).isTrue()
    }

    @Test
    fun seekBarPlayingNotScrubbing() {
        // WHEN playing
        val isPlaying = true
        val isScrubbing = false
        val data = SeekBarViewModel.Progress(true, true, isPlaying, isScrubbing, 3000, 120000)
        observer.onChanged(data)
        // THEN progress drawable is animating
        verify(mockSquigglyProgress).animate = true
    }

    @Test
    fun seekBarNotPlayingNotScrubbing() {
        // WHEN not playing & not scrubbing
        val isPlaying = false
        val isScrubbing = false
        val data = SeekBarViewModel.Progress(true, true, isPlaying, isScrubbing, 3000, 120000)
        observer.onChanged(data)
        // THEN progress drawable is not animating
        verify(mockSquigglyProgress).animate = false
    }

    @Test
    fun seekBarPlayingScrubbing() {
        // WHEN playing & scrubbing
        val isPlaying = true
        val isScrubbing = true
        val data = SeekBarViewModel.Progress(true, true, isPlaying, isScrubbing, 3000, 120000)
        observer.onChanged(data)
        // THEN progress drawable is not animating
        verify(mockSquigglyProgress).animate = false
    }

    @Test
    fun seekBarNotPlayingScrubbing() {
        // WHEN playing & scrubbing
        val isPlaying = false
        val isScrubbing = true
        val data = SeekBarViewModel.Progress(true, true, isPlaying, isScrubbing, 3000, 120000)
        observer.onChanged(data)
        // THEN progress drawable is not animating
        verify(mockSquigglyProgress).animate = false
    }

    @Test
    fun seekBarProgress_enabledAndScrubbing_timeViewsHaveTime() {
        val isEnabled = true
        val isScrubbing = true
        val data = SeekBarViewModel.Progress(isEnabled, true, true, isScrubbing, 3000, 120000)

        observer.onChanged(data)

        assertThat(scrubbingElapsedTimeView.text).isEqualTo("00:03")
        assertThat(scrubbingTotalTimeView.text).isEqualTo("02:00")
    }

    @Test
    fun seekBarProgress_disabledAndScrubbing_timeViewsEmpty() {
        val isEnabled = false
        val isScrubbing = true
        val data = SeekBarViewModel.Progress(isEnabled, true, true, isScrubbing, 3000, 120000)

        observer.onChanged(data)

        assertThat(scrubbingElapsedTimeView.text).isEqualTo("")
        assertThat(scrubbingTotalTimeView.text).isEqualTo("")
    }

    @Test
    fun seekBarProgress_enabledAndNotScrubbing_timeViewsEmpty() {
        val isEnabled = true
        val isScrubbing = false
        val data = SeekBarViewModel.Progress(isEnabled, true, true, isScrubbing, 3000, 120000)

        observer.onChanged(data)

        assertThat(scrubbingElapsedTimeView.text).isEqualTo("")
        assertThat(scrubbingTotalTimeView.text).isEqualTo("")
    }

    @Test
    fun seekBarJumpAnimation() {
        val data0 = SeekBarViewModel.Progress(true, true, true, false, 4000, 120000)
        val data1 = SeekBarViewModel.Progress(true, true, true, false, 10, 120000)

        // Set initial position of progress bar
        observer.onChanged(data0)
        assertThat(seekBarView.progress).isEqualTo(4000)
        assertThat(seekBarView.max).isEqualTo(120000)

        // Change to second data & confirm no change to position (due to animation delay)
        observer.onChanged(data1)
        assertThat(seekBarView.progress).isEqualTo(4000)
        verify(mockSeekbarAnimator).start()
    }
}