Handle empty topics during baseline profile generation

Change-Id: I8655a51908e0c994d40cd2ea242723d65cc201c6

benchmarks/src/main/kotlin/com/google/samples/apps/nowinandroid/foryou/ForYouActions.kt

@@ -16,6 +16,7 @@
 
 package com.google.samples.apps.nowinandroid.foryou
 
+import android.util.Log
 import androidx.benchmark.macro.MacrobenchmarkScope
 import androidx.test.uiautomator.By
 import androidx.test.uiautomator.Until
@@ -23,7 +24,8 @@ import androidx.test.uiautomator.untilHasChildren
 import com.google.samples.apps.nowinandroid.flingElementDownUp
 import com.google.samples.apps.nowinandroid.waitAndFindObject
 import com.google.samples.apps.nowinandroid.waitForObjectOnTopAppBar
-import org.junit.Assert.fail
+
+private const val TAG = "ForYouActions"
 
 fun MacrobenchmarkScope.forYouWaitForContent() {
     // Wait until content is loaded by checking if topics are loaded
@@ -41,6 +43,12 @@ fun MacrobenchmarkScope.forYouWaitForContent() {
  */
 fun MacrobenchmarkScope.forYouSelectTopics(recheckTopicsIfChecked: Boolean = false) {
     val topics = device.findObject(By.res("forYou:topicSelection"))
+    val withChildren = topics.childCount != 0
+    if (!withChildren) {
+        // TODO: Ensure ForYou has topics.
+        Log.w(TAG, "no topics found, can't scroll for baseline profile generation.")
+        return
+    }
 
     // Set gesture margin from sides not to trigger system gesture navigation
     val horizontalMargin = 10 * topics.visibleBounds.width() / 100
@@ -51,9 +59,6 @@ fun MacrobenchmarkScope.forYouSelectTopics(recheckTopicsIfChecked: Boolean = fal
     var visited = 0
 
     while (visited < 3) {
-        if (topics.childCount == 0) {
-            fail("No topics found, can't generate profile for ForYou page.")
-        }
         // Selecting some topics, which will populate items in the feed.
         val topic = topics.children[index % topics.childCount]
         // Find the checkable element to figure out whether it's checked or not

benchmarks/src/main/kotlin/com/google/samples/apps/nowinandroid/interests/InterestsActions.kt

@@ -16,12 +16,15 @@
 
 package com.google.samples.apps.nowinandroid.interests
 
+import android.util.Log
 import androidx.benchmark.macro.MacrobenchmarkScope
 import androidx.test.uiautomator.By
 import androidx.test.uiautomator.Until
 import com.google.samples.apps.nowinandroid.flingElementDownUp
 import com.google.samples.apps.nowinandroid.waitForObjectOnTopAppBar
 
+private const val TAG = "InterestsActions"
+
 fun MacrobenchmarkScope.goToInterestsScreen() {
     device.findObject(By.text("Interests")).click()
     device.waitForIdle()
@@ -35,7 +38,12 @@ fun MacrobenchmarkScope.goToInterestsScreen() {
 fun MacrobenchmarkScope.interestsScrollTopicsDownUp() {
     device.wait(Until.hasObject(By.res("interests:topics")), 5_000)
     val topicsList = device.findObject(By.res("interests:topics"))
-    device.flingElementDownUp(topicsList)
+    if (topicsList != null) {
+        // TODO: Ensure topics are availble.
+        device.flingElementDownUp(topicsList)
+    } else {
+        Log.w(TAG, "No topics found, can't scroll during baseline profile generation.")
+    }
 }
 
 fun MacrobenchmarkScope.interestsWaitForTopics() {