Add Testcase to verify 'viewedNewsResources'

core/testing/src/main/kotlin/com/google/samples/apps/nowinandroid/core/testing/repository/TestUserDataRepository.kt

@@ -76,16 +76,13 @@ class TestUserDataRepository : UserDataRepository {
 
     override suspend fun setNewsResourceViewed(newsResourceId: String, viewed: Boolean) {
         currentUserData.let { current ->
-            _userData.tryEmit(
-                current.copy(
-                    viewedNewsResources =
-                    if (viewed) {
-                        current.viewedNewsResources + newsResourceId
-                    } else {
-                        current.viewedNewsResources - newsResourceId
-                    },
-                ),
-            )
+            val viewedNews = if (viewed) {
+                current.viewedNewsResources + newsResourceId
+            } else {
+                current.viewedNewsResources - newsResourceId
+            }
+
+            _userData.tryEmit(current.copy(viewedNewsResources = viewedNews))
         }
     }
 

feature/foryou/src/test/kotlin/com/google/samples/apps/nowinandroid/feature/foryou/ForYouViewModelTest.kt

@@ -524,6 +524,17 @@ class ForYouViewModelTest {
             actual = userDataRepository.userData.first().bookmarkedNewsResources,
         )
     }
+
+    @Test
+    fun whenSetNewsResourceViewedIsCalled_viewedStateIsUpdated() = runTest {
+        val newsResourceId = "123"
+        viewModel.setNewsResourceViewed(newsResourceId, true)
+
+        assertEquals(
+            expected = setOf(newsResourceId),
+            actual = userDataRepository.userData.first().viewedNewsResources,
+        )
+    }
 }
 
 private val sampleTopics = listOf(

feature/settings/src/test/kotlin/com/google/samples/apps/nowinandroid/feature/settings/SettingsViewModelTest.kt

@@ -30,7 +30,6 @@ import org.junit.Before
 import org.junit.Rule
 import org.junit.Test
 import kotlin.test.assertEquals
-import kotlin.test.assertIs
 
 class SettingsViewModelTest {