refactor(test): add scenario for overrideScrollViewContentInsetAdjustmentBehavior (iOS)

apps/src/tests/single-feature-tests/tabs/index.ts

@@ -1,7 +1,7 @@
 import type { ScenarioGroup } from '@apps/tests/shared/helpers';
 
 import BottomAccessoryScenario from './bottom-accessory-layout';
-import OverrideScrollViewContentInsetScenario from './override-scroll-view-content-inset';
+import TestTabsOverrideScrollViewContentInset from './test-tabs-override-scroll-view-content-inset-ios';
 import TestTabsTabBarHidden from './test-tabs-tab-bar-hidden';
 import TabsScreenOrientationScenario from './tabs-screen-orientation';
 import TabBarAppearanceDefinedBySelectedTabScenario from './test-tabs-appearance-defined-by-selected-tab';
@@ -18,7 +18,7 @@ import TestTabsSpecialEffectsScrollToTop from './test-tabs-special-effects-scrol
 
 const scenarios = {
   BottomAccessoryScenario,
-  OverrideScrollViewContentInsetScenario,
+  TestTabsOverrideScrollViewContentInset,
   TabBarAppearanceDefinedBySelectedTabScenario,
   TestTabsTabBarHidden,
   TabsScreenOrientationScenario,

apps/src/tests/single-feature-tests/tabs/override-scroll-view-content-inset.tsx → apps/src/tests/single-feature-tests/tabs/test-tabs-override-scroll-view-content-inset-ios/index.tsx

@@ -10,7 +10,7 @@ import { createScenario } from '@apps/tests/shared/helpers';
 
 const scenarioDescription: ScenarioDescription = {
   name: 'Override ScrollView Content Inset',
-  key: 'override-scroll-view-content-inset',
+  key: 'test-tabs-override-scroll-view-content-inset-ios',
   details:
     'Tests overrideScrollViewContentInsetAdjustmentBehavior with different static values per tab. ' +
     'False: content scrolls behind bars. True/Default: content is inset from bars.',
@@ -19,9 +19,15 @@ const scenarioDescription: ScenarioDescription = {
 
 const ITEM_COUNT = 30;
 
-function ScrollContent({ label }: { label: string }) {
+function ScrollContent({
+  label,
+  testID,
+}: {
+  label: string;
+  testID: string;
+}) {
   return (
-    <ScrollView style={styles.scrollView}>
+    <ScrollView style={styles.scrollView} testID={testID}>
       <View style={styles.header}>
         <Text style={styles.headerText}>
           overrideScrollViewContentInsetAdjustmentBehavior: {label}
@@ -37,15 +43,30 @@ function ScrollContent({ label }: { label: string }) {
 }
 
 function FalseTab() {
-  return <ScrollContent label="false" />;
+  return (
+    <ScrollContent
+      label="false"
+      testID="override-inset-false-scrollview"
+    />
+  );
 }
 
 function TrueTab() {
-  return <ScrollContent label="true" />;
+  return (
+    <ScrollContent
+      label="true"
+      testID="override-inset-true-scrollview"
+    />
+  );
 }
 
 function DefaultTab() {
-  return <ScrollContent label="(not set, defaults to true)" />;
+  return (
+    <ScrollContent
+      label="(not set, defaults to true)"
+      testID="override-inset-default-scrollview"
+    />
+  );
 }
 
 export function App() {
@@ -59,6 +80,7 @@ export function App() {
               Component: FalseTab,
               options: {
                 title: 'False',
+                tabBarItemAccessibilityLabel: 'override-inset-tab-false',
                 ios: {
                   overrideScrollViewContentInsetAdjustmentBehavior: false,
                   icon: { type: 'sfSymbol', name: 'xmark.circle' },
@@ -70,6 +92,7 @@ export function App() {
               Component: TrueTab,
               options: {
                 title: 'True',
+                tabBarItemTestID: 'override-inset-tab-true',
                 ios: {
                   overrideScrollViewContentInsetAdjustmentBehavior: true,
                   icon: { type: 'sfSymbol', name: 'checkmark.circle' },
@@ -81,6 +104,7 @@ export function App() {
               Component: DefaultTab,
               options: {
                 title: 'Default',
+                tabBarItemTestID: 'override-inset-tab-default',
                 ios: { icon: { type: 'sfSymbol', name: 'circle.dashed' } },
               },
             },

apps/src/tests/single-feature-tests/tabs/test-tabs-override-scroll-view-content-inset-ios/scenario.md

@@ -0,0 +1,131 @@
+# Test Scenario: overrideScrollViewContentInsetAdjustmentBehavior
+
+## Details
+
+**Description:** Validates the
+`overrideScrollViewContentInsetAdjustmentBehavior` prop on `TabsScreen`
+(iOS only). By default, React Native sets ScrollView's
+`contentInsetAdjustmentBehavior` to `never`, which prevents the scroll
+view from respecting navigation bar and tab bar insets. When this prop
+is `true` (the default), the behavior is overridden back to UIKit's
+`automatic`, so content is inset from the bars. When set to `false`,
+the content scrolls behind the bars without insets.
+The test verifies that the three tabs — **False**, **True**, and
+**Default** — each exhibit the expected inset behavior and that the
+**Default** tab (prop omitted) matches the **True** tab.
+
+**OS test creation version:** iOS 18.6 and 26.2
+
+## E2E test
+
+No: Ongoing research.
+
+## Prerequisites
+
+- iOS device or simulator (iPhone)
+
+## Note
+
+- This prop is iOS-only and Fabric-only; skip on Android.
+- "Content scrolls behind bars" means list items are visible underneath
+  the navigation bar and/or tab bar when scrolled to the top or bottom
+  of the list.
+- "Content inset from bars" means the first and last list items are
+  fully visible and never hidden behind a bar, even when the scroll
+  view is at its extreme positions.
+- The navigation bar at the top and the tab bar at the bottom are both
+  relevant reference points for inset verification.
+
+## Steps
+
+### Baseline
+
+1. Launch the app and navigate to the
+   **Override Scroll View Content Inset** screen.
+
+- [ ] Expected: Three tabs are displayed in the tab bar: **False**,
+  **True**, and **Default**. The **False** tab is selected and shows
+  a scrollable list of 30 items.
+
+---
+
+### `false` — content scrolls behind bars
+
+2. Confirm the **False** tab is active and scroll the list to the top.
+
+- [ ] Expected: The text label
+  `overrideScrollViewContentInsetAdjustmentBehavior: false` at
+  the top of the scroll content is partially or fully obscured
+  behind the navigation bar, because
+  `overrideScrollViewContentInsetAdjustmentBehavior` is `false`
+  and the scroll view uses
+  `contentInsetAdjustmentBehavior: never`.
+
+3. Scroll the list to the bottom.
+
+- [ ] Expected: The last item in the list is partially or fully
+  obscured behind the tab bar, confirming that no bottom inset is
+  applied.
+
+---
+
+### `true` — content inset from bars
+
+4. Tap the **True** tab.
+
+- [ ] Expected: The **True** tab becomes active and shows a
+  scrollable list of 30 items.
+
+5. Scroll the list to the top.
+
+- [ ] Expected: The text label
+  `overrideScrollViewContentInsetAdjustmentBehavior: true`
+  at the top of the scroll content is fully visible below the
+  navigation bar and not obscured behind it. The scroll view
+  respects the top inset
+  (`contentInsetAdjustmentBehavior: automatic`).
+
+6. Scroll the list to the bottom.
+
+- [ ] Expected: The last item is fully visible and is not obscured by
+  the tab bar. The scroll view respects the bottom inset.
+
+---
+
+### Default (prop omitted) — same as `true`
+
+7. Tap the **Default** tab.
+
+- [ ] Expected: The **Default** tab becomes active and shows a
+  scrollable list of 30 items.
+
+8. Scroll the list to the top.
+
+- [ ] Expected: The text label
+  `overrideScrollViewContentInsetAdjustmentBehavior:
+  (not set, defaults to true)` at the top of the scroll content
+  is fully visible below the navigation bar and not obscured
+  behind it — identical behavior to the **True** tab.
+
+9. Scroll the list to the bottom.
+
+- [ ] Expected: The last item is fully visible and not obscured by
+  the tab bar — identical behavior to the **True** tab.
+
+---
+
+### Cross-tab comparison
+
+10. Switch between the **True** tab and the **Default** tab several
+    times while keeping each list scrolled to the top.
+
+- [ ] Expected: Both tabs show the first item fully visible below
+  the navigation bar with identical inset. No layout jump or
+  visual difference between the two tabs.
+
+11. Switch to the **False** tab and scroll to the top, then
+    immediately switch to the **True** tab.
+
+- [ ] Expected: The **True** tab correctly shows the first item
+  inset from the navigation bar. No crash or blank screen occurs
+  during the switch.