chore: Enfore consistent file-name casing on all backend packages (#15755)

packages/workflow/test/ExpressionExtensions/helpers.ts

@@ -0,0 +1,43 @@
+import type { IDataObject } from '@/interfaces';
+import { Workflow } from '@/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',
+		{},
+	);
+
+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}`;
+};