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https://github.com/LawnchairLauncher/lawnchair.git
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cda1c12ebe
Bug: 353303621 Test: This is the unit test Flag: NONE - unit test Change-Id: Ieb8f8ac3a8a94defe5f9ed2b8ca9812fd2ac1ba6
92 lines
3.0 KiB
Kotlin
92 lines
3.0 KiB
Kotlin
/*
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* Copyright (C) 2024 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.util
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import android.view.View
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import androidx.test.ext.junit.runners.AndroidJUnit4
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import androidx.test.filters.SmallTest
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import androidx.test.platform.app.InstrumentationRegistry
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import com.android.launcher3.R
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import com.android.launcher3.util.ViewCache.CacheEntry
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import com.google.common.truth.Truth.assertThat
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import org.junit.Before
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import org.junit.Test
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import org.junit.runner.RunWith
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@SmallTest
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@RunWith(AndroidJUnit4::class)
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class ViewCacheTest {
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private lateinit var underTest: ViewCache
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private val context = InstrumentationRegistry.getInstrumentation().context
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private val layoutId =
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context.run { resources.getIdentifier("test_layout_appwidget_blue", "layout", packageName) }
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@Before
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fun setUp() {
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underTest = ViewCache()
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underTest.setCacheSize(layoutId, 5)
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}
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@Test
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fun get_view_from_empty_cache() {
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val view: View = underTest.getView(layoutId, context, null)
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val cacheEntry = view.getTag(R.id.cache_entry_tag_id) as ViewCache.CacheEntry
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assertThat(cacheEntry).isNotNull()
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assertThat(cacheEntry.mMaxSize).isEqualTo(5)
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assertThat(cacheEntry.mCurrentSize).isEqualTo(0)
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assertThat(cacheEntry.mViews[0]).isNull()
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}
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@Test
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fun recyclerView() {
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val view: View = underTest.getView(layoutId, context, null)
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val cacheEntry = view.getTag(R.id.cache_entry_tag_id) as ViewCache.CacheEntry
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underTest.recycleView(layoutId, view)
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assertThat(cacheEntry.mMaxSize).isEqualTo(5)
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assertThat(cacheEntry.mCurrentSize).isEqualTo(1)
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assertThat(cacheEntry.mViews[0]).isSameInstanceAs(view)
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}
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@Test
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fun get_view_from_cache() {
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val view: View = underTest.getView(layoutId, context, null)
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underTest.recycleView(layoutId, view)
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val newView = underTest.getView<View>(layoutId, context, null)
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assertThat(view).isSameInstanceAs(newView)
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}
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@Test
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fun change_tag_id_recyclerView_noOp() {
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val view: View = underTest.getView(layoutId, context, null)
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val cacheEntry = view.getTag(R.id.cache_entry_tag_id) as ViewCache.CacheEntry
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view.setTag(R.id.cache_entry_tag_id, CacheEntry(3))
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underTest.recycleView(layoutId, view)
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assertThat(cacheEntry.mMaxSize).isEqualTo(5)
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assertThat(cacheEntry.mCurrentSize).isEqualTo(0)
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assertThat(cacheEntry.mViews[0]).isNull()
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}
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}
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