| /* |
| * Copyright 2019 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 androidx.navigation.dynamicfeatures |
| |
| import androidx.navigation.NavDestination |
| import androidx.navigation.NavigatorProvider |
| import androidx.navigation.NoOpNavigator |
| import androidx.navigation.dynamicfeatures.DynamicGraphNavigator.DynamicNavGraph |
| import androidx.navigation.dynamicfeatures.shared.TestDynamicInstallManager |
| import androidx.test.filters.SmallTest |
| import org.junit.Assert.assertNotNull |
| import org.junit.Assert.assertTrue |
| import org.junit.Before |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| |
| @RunWith(JUnit4::class) |
| @SmallTest |
| class DynamicNavGraphTest { |
| |
| private val progressId = 1 |
| private lateinit var provider: NavigatorProvider |
| private lateinit var navigator: DynamicGraphNavigator |
| private lateinit var dynamicNavGraph: DynamicNavGraph |
| private lateinit var noOpNavigator: NoOpNavigator |
| |
| @Before |
| fun setup() { |
| provider = NavigatorProvider() |
| noOpNavigator = NoOpNavigator() |
| navigator = DynamicGraphNavigator( |
| provider, |
| TestDynamicInstallManager() |
| ) |
| provider.addNavigator(noOpNavigator) |
| dynamicNavGraph = navigator.createDestination() |
| } |
| |
| @Test(expected = IllegalStateException::class) |
| fun testGetOrThrow_NoParent() { |
| DynamicNavGraph.getOrThrow(noOpNavigator.createDestination()) |
| } |
| |
| @Test |
| fun testGetOrThrow_CorrectParent() { |
| setupProgressDestination( |
| noOpNavigator.createDestination().apply { |
| id = progressId |
| } |
| ) |
| val progressDestination = navigator.navigateToProgressDestination(dynamicNavGraph, null) |
| assertNotNull(progressDestination) |
| progressDestination?.let { |
| DynamicNavGraph.getOrThrow(progressDestination) |
| // Assume not having thrown an exception |
| } |
| } |
| |
| @Test(expected = IllegalStateException::class) |
| fun testNavigateToProgressDestination_withoutProgressDestination() { |
| setupProgressDestination(null) |
| navigator.navigateToProgressDestination(dynamicNavGraph, null) |
| } |
| |
| @Test |
| fun testNavigateToProgressDestination_withProviderAndDestination() { |
| setupProgressDestination( |
| noOpNavigator.createDestination().apply { |
| id = progressId |
| } |
| ) |
| val destination = navigator.navigateToProgressDestination(dynamicNavGraph, null) |
| assertTrue(destination?.parent is DynamicNavGraph) |
| } |
| |
| private fun setupProgressDestination(progressDestination: NavDestination?) { |
| progressDestination?.let { |
| navigator.installDefaultProgressDestination { it } |
| } |
| provider.addNavigator(navigator) |
| dynamicNavGraph = navigator.createDestination() |
| } |
| } |