Issue#106 Update NavController example's sharedTest as well

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

@@ -0,0 +1,5 @@
+<?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

@@ -0,0 +1,116 @@
+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() }
+        }
+    }
+}