| /* |
| * Copyright (C) 2023 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.customization.model.grid.ui.viewmodel |
| |
| import androidx.test.filters.SmallTest |
| import androidx.test.platform.app.InstrumentationRegistry |
| import com.android.customization.model.grid.data.repository.FakeGridRepository |
| import com.android.customization.model.grid.domain.interactor.GridInteractor |
| import com.android.customization.model.grid.domain.interactor.GridSnapshotRestorer |
| import com.android.wallpaper.picker.option.ui.viewmodel.OptionItemViewModel |
| import com.android.wallpaper.testing.FakeSnapshotStore |
| import com.android.wallpaper.testing.collectLastValue |
| import com.google.common.truth.Truth.assertThat |
| import kotlinx.coroutines.ExperimentalCoroutinesApi |
| import kotlinx.coroutines.runBlocking |
| import kotlinx.coroutines.test.TestScope |
| import kotlinx.coroutines.test.runTest |
| import org.junit.Before |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| |
| @OptIn(ExperimentalCoroutinesApi::class) |
| @SmallTest |
| @RunWith(JUnit4::class) |
| class GridScreenViewModelTest { |
| |
| private lateinit var underTest: GridScreenViewModel |
| private lateinit var testScope: TestScope |
| private lateinit var interactor: GridInteractor |
| private lateinit var store: FakeSnapshotStore |
| |
| @Before |
| fun setUp() { |
| testScope = TestScope() |
| store = FakeSnapshotStore() |
| interactor = |
| GridInteractor( |
| applicationScope = testScope.backgroundScope, |
| repository = |
| FakeGridRepository( |
| scope = testScope.backgroundScope, |
| initialOptionCount = 4, |
| ), |
| snapshotRestorer = { |
| GridSnapshotRestorer( |
| interactor = interactor, |
| ) |
| .apply { runBlocking { setUpSnapshotRestorer(store) } } |
| } |
| ) |
| |
| underTest = |
| GridScreenViewModel( |
| context = InstrumentationRegistry.getInstrumentation().targetContext, |
| interactor = interactor, |
| ) |
| } |
| |
| @Test |
| fun clickOnItem_itGetsSelected() = |
| testScope.runTest { |
| val optionItemsValueProvider = collectLastValue(underTest.optionItems) |
| var optionItemsValue = checkNotNull(optionItemsValueProvider.invoke()) |
| assertThat(optionItemsValue).hasSize(4) |
| assertThat(getSelectedIndex(optionItemsValue)).isEqualTo(0) |
| assertThat(getOnClick(optionItemsValue[0])).isNull() |
| |
| val item1OnClickedValue = getOnClick(optionItemsValue[1]) |
| assertThat(item1OnClickedValue).isNotNull() |
| item1OnClickedValue?.invoke() |
| |
| optionItemsValue = checkNotNull(optionItemsValueProvider.invoke()) |
| assertThat(optionItemsValue).hasSize(4) |
| assertThat(getSelectedIndex(optionItemsValue)).isEqualTo(1) |
| assertThat(getOnClick(optionItemsValue[0])).isNotNull() |
| assertThat(getOnClick(optionItemsValue[1])).isNull() |
| } |
| |
| private fun TestScope.getSelectedIndex(optionItems: List<OptionItemViewModel>): Int { |
| return optionItems.indexOfFirst { optionItem -> |
| collectLastValue(optionItem.isSelected).invoke() == true |
| } |
| } |
| |
| private fun TestScope.getOnClick(optionItem: OptionItemViewModel): (() -> Unit)? { |
| return collectLastValue(optionItem.onClicked).invoke() |
| } |
| } |