From e60f8864e10ef4ff08590b5ae7cfec330cda4ad2 Mon Sep 17 00:00:00 2001
From: ArtemDzhereleiko <adzhereleiko@thingsboard.io>
Date: Thu, 8 Jan 2026 09:27:47 +0200
Subject: [PATCH] UI: Fixed cf test script func with too long arg scring

---
 .../app/core/services/calculated-field-form.service.ts   | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/ui-ngx/src/app/core/services/calculated-field-form.service.ts b/ui-ngx/src/app/core/services/calculated-field-form.service.ts
index 673b97abe4..1b9dddfd26 100644
--- a/ui-ngx/src/app/core/services/calculated-field-form.service.ts
+++ b/ui-ngx/src/app/core/services/calculated-field-form.service.ts
@@ -101,7 +101,12 @@ export class CalculatedFieldFormService {
       return this.calculatedFieldsService.getLatestCalculatedFieldDebugEvent(calculatedFieldId, {ignoreLoading: true})
         .pipe(
           switchMap(event => {
-            const args = event?.arguments ? JSON.parse(event.arguments) : null;
+            let args = null;
+            if (event?.arguments) {
+              try {
+                args = JSON.parse(event.arguments);
+              } catch (e) {}
+            }
             return testDialogFn(formValue, args, false, expression);
           }),
           takeUntilDestroyed(destroyRef)
@@ -109,4 +114,4 @@ export class CalculatedFieldFormService {
     }
     return testDialogFn(formValue, null, false, expression);
   }
-}
\ No newline at end of file
+}