From 49445258220ddbceb233fa2cc8559d5ea6a4390e Mon Sep 17 00:00:00 2001
From: Valya Bullions <valya@n8n.io>
Date: Thu, 12 Jan 2023 14:29:50 +0100
Subject: [PATCH 1/2] fix: test failing for toDate from string extension test

---
 .../DateExtensions.test.ts                    | 24 ++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/packages/workflow/test/ExpressionExtensions/DateExtensions.test.ts b/packages/workflow/test/ExpressionExtensions/DateExtensions.test.ts
index 5084fca09a538..5012aabe67a53 100644
--- a/packages/workflow/test/ExpressionExtensions/DateExtensions.test.ts
+++ b/packages/workflow/test/ExpressionExtensions/DateExtensions.test.ts
@@ -47,7 +47,29 @@ describe('Data Transformation Functions', () => {
 		});
 
 		test('.toDate() should work on a string', () => {
-			expect(evaluate('={{ "2022-01-03T00:00:00.000+00:00".toDate() }}')).toEqual(new Date(2022, 0, 3));
+			const offsetToString = (input: number) => {
+				let output = '-';
+				if (input < 0) {
+					output = '+';
+					input = -input;
+				}
+
+				output += Math.floor(input / 60)
+					.toString()
+					.padStart(2, '0');
+				output += ':';
+				output += (input % 60).toString().padStart(2, '0');
+
+				return output;
+			};
+
+			expect(
+				evaluate(
+					`={{ "2022-01-03T00:00:00.000${offsetToString(
+						new Date().getTimezoneOffset(),
+					)}".toDate() }}`,
+				),
+			).toEqual(new Date(2022, 0, 3));
 		});
 	});
 });

From 4ad81a578342acb3136f5735d2369bfaf22370bf Mon Sep 17 00:00:00 2001
From: Valya Bullions <valya@n8n.io>
Date: Thu, 12 Jan 2023 14:46:54 +0000
Subject: [PATCH 2/2] fix: make whole timestamp from util function

---
 .../DateExtensions.test.ts                    | 27 +++----------------
 .../test/ExpressionExtensions/Helpers.ts      |  9 +++++++
 2 files changed, 12 insertions(+), 24 deletions(-)

diff --git a/packages/workflow/test/ExpressionExtensions/DateExtensions.test.ts b/packages/workflow/test/ExpressionExtensions/DateExtensions.test.ts
index 5012aabe67a53..bd51a5cdff6f9 100644
--- a/packages/workflow/test/ExpressionExtensions/DateExtensions.test.ts
+++ b/packages/workflow/test/ExpressionExtensions/DateExtensions.test.ts
@@ -4,7 +4,7 @@
 
 import { extend } from '@/Extensions';
 import { dateExtensions } from '@/Extensions/DateExtensions';
-import { evaluate } from './Helpers';
+import { evaluate, getLocalISOString } from './Helpers';
 
 describe('Data Transformation Functions', () => {
 	describe('Date Data Transformation Functions', () => {
@@ -47,29 +47,8 @@ describe('Data Transformation Functions', () => {
 		});
 
 		test('.toDate() should work on a string', () => {
-			const offsetToString = (input: number) => {
-				let output = '-';
-				if (input < 0) {
-					output = '+';
-					input = -input;
-				}
-
-				output += Math.floor(input / 60)
-					.toString()
-					.padStart(2, '0');
-				output += ':';
-				output += (input % 60).toString().padStart(2, '0');
-
-				return output;
-			};
-
-			expect(
-				evaluate(
-					`={{ "2022-01-03T00:00:00.000${offsetToString(
-						new Date().getTimezoneOffset(),
-					)}".toDate() }}`,
-				),
-			).toEqual(new Date(2022, 0, 3));
+			const date = new Date(2022, 0, 3);
+			expect(evaluate(`={{ "${getLocalISOString(date)}".toDate() }}`)).toEqual(date);
 		});
 	});
 });
diff --git a/packages/workflow/test/ExpressionExtensions/Helpers.ts b/packages/workflow/test/ExpressionExtensions/Helpers.ts
index 9d5307bdeca72..1a36df85a6bf7 100644
--- a/packages/workflow/test/ExpressionExtensions/Helpers.ts
+++ b/packages/workflow/test/ExpressionExtensions/Helpers.ts
@@ -31,3 +31,12 @@ export const evaluate = (value: string, values?: INodeExecutionData[]) =>
 		'America/New_York',
 		{},
 	);
+
+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}`;
+};