fix(MUSD-744): update Money tab test for new Tab.Screen registration

After moving MoneyScreenStack from a top-level Stack.Screen into a
Tab.Screen inside HomeTabs, the conditional-rendering test could no
longer find Routes.MONEY.ROOT among the outer Stack navigator's
direct children. Render HomeTabs separately (mirroring the existing
getHomeTabsComponent helper) and inspect the TabNavigator's children
to assert the Money route is registered when the feature flag is on
and absent when it is off.

Author: Kureev

app/components/Nav/Main/MainNavigator.test.tsx

@@ -1433,45 +1433,50 @@ describe('MainNavigator', () => {
     });
 
     describe('Money home screen conditional rendering', () => {
-      it('includes Money route when feature flag is enabled', () => {
-        mockSelectMoneyHomeScreenEnabledFlag.mockReturnValue(true);
-
-        const container = renderWithProvider(<MainNavigator />, {
+      const getHomeTabsScreenNames = (): string[] => {
+        const { root: mainRoot } = renderWithProvider(<MainNavigator />, {
           state: initialRootState,
         });
-
-        const screenProps = container.root.children
+        const homeScreen = mainRoot.findAll(
+          (node: ReactTestInstance) =>
+            node.type?.toString?.() === 'Screen' && node.props?.name === 'Home',
+        )[0];
+        const HomeTabs = homeScreen?.props?.component as React.ComponentType<
+          Record<string, unknown>
+        >;
+        const { root: homeRoot } = renderWithProvider(
+          <HomeTabs route={{ params: {} }} />,
+          { state: initialRootState },
+        );
+        const tabNavigatorNode = homeRoot.findAll(
+          (node: ReactTestInstance) =>
+            node.type?.toString?.() === 'TabNavigator',
+        )[0];
+        return (tabNavigatorNode?.children ?? [])
           .filter(
             (child): child is ReactTestInstance =>
               typeof child === 'object' &&
-              'type' in child &&
               'props' in child &&
-              child.type?.toString() === 'Screen',
+              typeof child.props?.name === 'string',
           )
-          .map((child) => child.props.name);
+          .map((child) => child.props.name as string);
+      };
+
+      it('includes Money route when feature flag is enabled', () => {
+        mockSelectMoneyHomeScreenEnabledFlag.mockReturnValue(true);
 
-        expect(screenProps).toContain(Routes.MONEY.ROOT);
+        const tabScreenNames = getHomeTabsScreenNames();
+
+        expect(tabScreenNames).toContain(Routes.MONEY.ROOT);
         mockSelectMoneyHomeScreenEnabledFlag.mockReturnValue(false);
       });
 
       it('excludes Money route when feature flag is disabled', () => {
         mockSelectMoneyHomeScreenEnabledFlag.mockReturnValue(false);
 
-        const container = renderWithProvider(<MainNavigator />, {
-          state: initialRootState,
-        });
-
-        const screenProps = container.root.children
-          .filter(
-            (child): child is ReactTestInstance =>
-              typeof child === 'object' &&
-              'type' in child &&
-              'props' in child &&
-              child.type?.toString() === 'Screen',
-          )
-          .map((child) => child.props.name);
+        const tabScreenNames = getHomeTabsScreenNames();
 
-        expect(screenProps).not.toContain(Routes.MONEY.ROOT);
+        expect(tabScreenNames).not.toContain(Routes.MONEY.ROOT);
       });
     });
   });