fix: TypeError: outputParameters is not iterable (#29833)

web/app/components/tools/workflow-tool/utils.test.ts

@@ -0,0 +1,47 @@
+import { VarType } from '@/app/components/workflow/types'
+import type { WorkflowToolProviderOutputParameter, WorkflowToolProviderOutputSchema } from '../types'
+import { buildWorkflowOutputParameters } from './utils'
+
+describe('buildWorkflowOutputParameters', () => {
+  it('returns provided output parameters when array input exists', () => {
+    const params: WorkflowToolProviderOutputParameter[] = [
+      { name: 'text', description: 'final text', type: VarType.string },
+    ]
+
+    const result = buildWorkflowOutputParameters(params, null)
+
+    expect(result).toBe(params)
+  })
+
+  it('derives parameters from schema when explicit array missing', () => {
+    const schema: WorkflowToolProviderOutputSchema = {
+      type: 'object',
+      properties: {
+        answer: {
+          type: VarType.string,
+          description: 'AI answer',
+        },
+        attachments: {
+          type: VarType.arrayFile,
+          description: 'Supporting files',
+        },
+        unknown: {
+          type: 'custom',
+          description: 'Unsupported type',
+        },
+      },
+    }
+
+    const result = buildWorkflowOutputParameters(undefined, schema)
+
+    expect(result).toEqual([
+      { name: 'answer', description: 'AI answer', type: VarType.string },
+      { name: 'attachments', description: 'Supporting files', type: VarType.arrayFile },
+      { name: 'unknown', description: 'Unsupported type', type: undefined },
+    ])
+  })
+
+  it('returns empty array when no source information is provided', () => {
+    expect(buildWorkflowOutputParameters(null, null)).toEqual([])
+  })
+})