n8n/packages/workflow/test/ExpressionExtensions/helpers.ts
Danny Martini d109822050
feat(core): Serialize Luxon types at V8 isolate boundary (#26993)
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-16 12:55:38 +00:00

72 lines
2.2 KiB
TypeScript

import { DateTime, Duration, Interval } from 'luxon';
import type { IDataObject } from '../../src/interfaces';
import { Workflow } from '../../src/workflow';
import * as Helpers from '../helpers';
export const nodeTypes = Helpers.NodeTypes();
export const workflow = new Workflow({
nodes: [
{
name: 'node',
typeVersion: 1,
type: 'test.set',
id: 'uuid-1234',
position: [0, 0],
parameters: {},
},
],
connections: {},
active: false,
nodeTypes,
});
export const expression = workflow.expression;
export const evaluate = (value: string, values?: IDataObject[]) =>
expression.getParameterValue(
value,
null,
0,
0,
'node',
values?.map((v) => ({ json: v })) ?? [],
'manual',
{},
);
/**
* Normalize expression results that may be Luxon instances (current engine)
* or ISO strings (VM engine). The VM engine serializes Luxon types to ISO
* strings at the isolate boundary via __prepareForTransfer.
*
* TODO: When the non-VM expression engine is removed and only the VM engine
* remains, these helpers become unnecessary — all results will be strings.
* Replace usages with fromISO() directly.
*/
export const asDateTime = (v: unknown): DateTime => {
if (DateTime.isDateTime(v)) return v;
if (typeof v !== 'string') throw new Error(`Expected DateTime or ISO string, got ${typeof v}`);
return DateTime.fromISO(v);
};
export const asDuration = (v: unknown): Duration => {
if (Duration.isDuration(v)) return v;
if (typeof v !== 'string') throw new Error(`Expected Duration or ISO string, got ${typeof v}`);
return Duration.fromISO(v);
};
export const asInterval = (v: unknown): Interval => {
if (Interval.isInterval(v)) return v;
if (typeof v !== 'string') throw new Error(`Expected Interval or ISO string, got ${typeof v}`);
return Interval.fromISO(v);
};
export const getLocalISOString = (date: Date) => {
const offset = date.getTimezoneOffset();
const offsetAbs = Math.abs(offset);
const isoString = new Date(date.getTime() - offset * 60 * 1000).toISOString();
const hours = String(Math.floor(offsetAbs / 60)).padStart(2, '0');
const minutes = String(offsetAbs % 60).padStart(2, '0');
return `${isoString.slice(0, -1)}${offset > 0 ? '-' : '+'}${hours}:${minutes}`;
};