skip rn setup for native tests

Author: robertherber

apps/example/ios/reactnativedeviceactivityexample/AppDelegate.mm

@@ -1,12 +1,18 @@
 #import "AppDelegate.h"
 
+
 #import <React/RCTBundleURLProvider.h>
 #import <React/RCTLinkingManager.h>
 
 @implementation AppDelegate
 
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
 {
+  if (NSClassFromString(@"XCTestCase")) {
+    // Skip React Native setup for unit tests
+    return YES;
+  }
+
   self.moduleName = @"main";
 
   // You can add your custom initial props in the dictionary below.