diff --git a/packages/browser/src/integrations/pluggable/ember.ts b/packages/browser/src/integrations/pluggable/ember.ts
index 6c995980dc85..4096fde0ab08 100644
--- a/packages/browser/src/integrations/pluggable/ember.ts
+++ b/packages/browser/src/integrations/pluggable/ember.ts
@@ -49,6 +49,8 @@ export class Ember implements Integration {
 
       if (typeof oldOnError === 'function') {
         oldOnError.call(this.Ember, error);
+      } else if (this.Ember.testing) {
+        throw error;
       }
     };