Issue#106 Update NavController example's sharedTest as well

examplecase/example-navcontroller-shared-test/.gitignore

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+/build

examplecase/example-navcontroller-shared-test/build.gradle

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+plugins {
+    id 'com.android.library'
+    id 'org.jetbrains.kotlin.android'
+    id 'androidx.navigation.safeargs.kotlin'
+}
+
+android {
+    compileSdk 31
+
+    defaultConfig {
+        minSdk 21
+        targetSdk 31
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles "consumer-rules.pro"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+
+    lintOptions {
+        ignore 'FragmentGradleConfiguration'
+    }
+}
+
+dependencies {
+    applyAppSharedTestDependenciesTo(this)
+    implementation project(":examplecase:example-navcontroller")
+    //noinspection FragmentGradleConfiguration
+    implementation "androidx.fragment:fragment-testing:1.5.3"
+    implementation "androidx.navigation:navigation-testing:$navigation_version"
+    implementation project(':test-util-android')
+}

examplecase/example-navcontroller-shared-test/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

examplecase/example-navcontroller-shared-test/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="org.fnives.test.showcase.examplecase.navcontroller.shared.test">
+
+</manifest>

examplecase/example-navcontroller-shared-test/src/main/java/org/fnives/test/showcase/examplecase/navcontroller/HomeNavigationSharedTest.kt

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+package org.fnives.test.showcase.examplecase.navcontroller
+
+import android.os.Bundle
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.testing.FragmentScenario
+import androidx.fragment.app.testing.launchFragmentInContainer
+import androidx.navigation.Navigation
+import androidx.navigation.testing.TestNavHostController
+import androidx.recyclerview.widget.RecyclerView
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.espresso.Espresso
+import androidx.test.espresso.action.ViewActions
+import androidx.test.espresso.contrib.RecyclerViewActions
+import androidx.test.espresso.matcher.ViewMatchers
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import org.fnives.test.showcase.android.testutil.viewaction.recycler.RemoveItemAnimations
+import org.hamcrest.Matchers
+import org.junit.Assert
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+
+/**
+ * Shows basic navigation test from a ListScreen to a Detail Screen.
+ *
+ * Sets up TestNavController and shows how it can be used to verify proper arguments, destination.
+ *
+ * For more info check out https://developer.android.com/guide/navigation/navigation-testing
+ */
+@RunWith(AndroidJUnit4::class)
+open class HomeNavigationSharedTest {
+
+    private lateinit var fragmentScenario: FragmentScenario<HomeFragment>
+    private lateinit var testNavController: TestNavHostController
+
+    @Before
+    fun setup() {
+        testNavController = TestNavHostController(ApplicationProvider.getApplicationContext())
+        fragmentScenario = launchFragmentInContainer()
+        fragmentScenario.runOnMain { testNavController.setGraph(R.navigation.nav_example) }
+
+        fragmentScenario.onFragment { fragment ->
+            Navigation.setViewNavController(fragment.requireView(), testNavController)
+        }
+
+        Espresso.onView(ViewMatchers.withId(R.id.recycler))
+            .perform(RemoveItemAnimations())
+    }
+
+    @Test
+    fun clickingOnItemNavigatesProperlyAndBackstackIsCorrect() {
+        val position = 25
+        Espresso.onView(ViewMatchers.withId(R.id.recycler))
+            .perform(RecyclerViewActions.scrollToPosition<RecyclerView.ViewHolder>(position))
+
+        Espresso.onView(
+            Matchers.allOf(
+                ViewMatchers.withText("Item $position"), ViewMatchers.withId(R.id.item_cta),
+                ViewMatchers.withParent(ViewMatchers.withId(R.id.recycler))
+            )
+        )
+            .perform(ViewActions.click())
+
+        Assert.assertEquals(R.id.detailFragment, testNavController.currentDestination?.id)
+    }
+
+    @Test
+    fun clickingOnItemTwiceNavigatesProperly() {
+        val position = 16
+        Espresso.onView(ViewMatchers.withId(R.id.recycler))
+            .perform(RecyclerViewActions.scrollToPosition<RecyclerView.ViewHolder>(position))
+
+        Espresso.onView(
+            Matchers.allOf(
+                ViewMatchers.withText("Item $position"), ViewMatchers.withId(R.id.item_cta),
+                ViewMatchers.withParent(ViewMatchers.withId(R.id.recycler))
+            )
+        )
+            .perform(ViewActions.click())
+            .perform(ViewActions.click())
+
+        Assert.assertEquals(R.id.detailFragment, testNavController.currentDestination?.id)
+        val expectedBackstack = listOf(R.id.nav_example_xml, R.id.homeFragment, R.id.detailFragment)
+        Assert.assertEquals(expectedBackstack, testNavController.backStack.map { it.destination.id })
+        testNavController.backStack.map { it.arguments }
+    }
+
+    @Test
+    fun clickingOnTwoItemsOpensOnlyTheFirst() {
+        val position1 = 16
+        val position2 = 15
+        Espresso.onView(ViewMatchers.withId(R.id.recycler))
+            .perform(RecyclerViewActions.scrollToPosition<RecyclerView.ViewHolder>(position1))
+
+        Espresso.onView(itemViewMatcher(position1)).perform(ViewActions.click())
+        Espresso.onView(itemViewMatcher(position2)).perform(ViewActions.click())
+
+        Assert.assertEquals(R.id.detailFragment, testNavController.currentDestination?.id)
+        val expectedBackstack = listOf(R.id.nav_example_xml, R.id.homeFragment, R.id.detailFragment)
+        Assert.assertEquals(expectedBackstack, testNavController.backStack.map { it.destination.id })
+        val actualArgs = DetailFragmentArgs.fromBundle(testNavController.backStack.last().arguments ?: Bundle())
+        Assert.assertEquals(position1, actualArgs.position)
+    }
+
+    private fun itemViewMatcher(position: Int) =
+        Matchers.allOf(
+            ViewMatchers.withText("Item $position"), ViewMatchers.withId(R.id.item_cta),
+            ViewMatchers.withParent(ViewMatchers.withId(R.id.recycler))
+        )
+
+    companion object {
+        inline fun <T : Fragment> FragmentScenario<T>.runOnMain(crossinline action: () -> Unit) {
+            onFragment { action() }
+        }
+    }
+}