fixed the entrypoint test

Author: gaaclarke

shell/platform/android/io/flutter/embedding/android/FlutterActivityAndFragmentDelegate.java

@@ -228,6 +228,18 @@ void onAttach(@NonNull Context context) {
     return activity;
   }
 
+  private FlutterEngineGroup.Options addEntrypointOptions(FlutterEngineGroup.Options options) {
+    String appBundlePathOverride = host.getAppBundlePath();
+    if (appBundlePathOverride == null || appBundlePathOverride.isEmpty()) {
+      appBundlePathOverride = FlutterInjector.instance().flutterLoader().findAppBundlePath();
+    }
+
+    DartExecutor.DartEntrypoint dartEntrypoint =
+        new DartExecutor.DartEntrypoint(
+            appBundlePathOverride, host.getDartEntrypointFunctionName());
+    return options.setDartEntrypoint(dartEntrypoint).setInitialRoute(host.getInitialRoute());
+  }
+
   /**
    * Obtains a reference to a FlutterEngine to back this delegate and its {@code host}.
    *
@@ -285,17 +297,9 @@ void onAttach(@NonNull Context context) {
                 + "'");
       }
 
-      String appBundlePathOverride = host.getAppBundlePath();
-      if (appBundlePathOverride == null || appBundlePathOverride.isEmpty()) {
-        appBundlePathOverride = FlutterInjector.instance().flutterLoader().findAppBundlePath();
-      }
-
-      DartExecutor.DartEntrypoint dartEntrypoint =
-          new DartExecutor.DartEntrypoint(
-              appBundlePathOverride, host.getDartEntrypointFunctionName());
       flutterEngine =
           flutterEngineGroup.createAndRunEngine(
-              host.getContext(), dartEntrypoint, host.getInitialRoute());
+              addEntrypointOptions(new FlutterEngineGroup.Options(host.getContext())));
       isFlutterEngineFromHost = false;
       return;
     }
@@ -313,9 +317,10 @@ void onAttach(@NonNull Context context) {
             : engineGroup;
     flutterEngine =
         group.createAndRunEngine(
-            new FlutterEngineGroup.Options(host.getContext())
-                .setAutomaticallyRegisterPlugins(false)
-                .setWaitForRestorationData(host.shouldRestoreAndSaveState()));
+            addEntrypointOptions(
+                new FlutterEngineGroup.Options(host.getContext())
+                    .setAutomaticallyRegisterPlugins(false)
+                    .setWaitForRestorationData(host.shouldRestoreAndSaveState())));
     isFlutterEngineFromHost = false;
   }