test: Migrate 2929 test to Playwright (#18425)

packages/testing/playwright/pages/CanvasPage.ts

@@ -259,4 +259,8 @@ export class CanvasPage extends BasePage {
 	async clickProductionChecklistAction(actionText: string): Promise<void> {
 		await this.getProductionChecklistActionItem(actionText).click();
 	}
+
+	getCanvasNodes() {
+		return this.page.getByTestId('canvas-node');
+	}
 }

packages/testing/playwright/tests/ui/2929-ado-can-load-old-switch-node-workflows.spec.ts

@@ -0,0 +1,20 @@
+import { test, expect } from '../../fixtures/base';
+import type { TestRequirements } from '../../Types';
+
+const requirements: TestRequirements = {
+	workflow: {
+		'Switch_node_with_null_connection.json': 'Switch Node with Null Connection',
+	},
+};
+
+test.describe('ADO-2929 can load Switch nodes', () => {
+	test('can load workflows with Switch nodes with null at connection index @auth:owner', async ({
+		n8n,
+		setupRequirements,
+	}) => {
+		await setupRequirements(requirements);
+		await expect(n8n.canvas.getCanvasNodes()).toHaveCount(3);
+		await n8n.canvas.deleteNodeByName('Switch');
+		await expect(n8n.canvas.getCanvasNodes()).toHaveCount(2);
+	});
+});

packages/testing/playwright/workflows/Switch_node_with_null_connection.json

@@ -0,0 +1,85 @@
+{
+	"nodes": [
+		{
+			"parameters": {},
+			"id": "418350b8-b402-4d3b-93ba-3794d36c1ad5",
+			"name": "When clicking \"Execute workflow\"",
+			"type": "n8n-nodes-base.manualTrigger",
+			"typeVersion": 1,
+			"position": [440, 380]
+		},
+		{
+			"parameters": {
+				"rules": {
+					"values": [
+						{
+							"conditions": {
+								"options": {
+									"caseSensitive": true,
+									"leftValue": "",
+									"typeValidation": "strict"
+								},
+								"conditions": [
+									{
+										"leftValue": "",
+										"rightValue": "",
+										"operator": {
+											"type": "string",
+											"operation": "equals"
+										}
+									}
+								],
+								"combinator": "and"
+							}
+						},
+						{},
+						{}
+					]
+				},
+				"options": {}
+			},
+			"id": "b67ad46f-6b0d-4ff4-b2d2-dfbde44e287c",
+			"name": "Switch",
+			"type": "n8n-nodes-base.switch",
+			"typeVersion": 3,
+			"position": [660, 380]
+		},
+		{
+			"parameters": {
+				"options": {}
+			},
+			"id": "24731c11-e2a4-4854-81a6-277ce72e8a93",
+			"name": "Edit Fields",
+			"type": "n8n-nodes-base.set",
+			"typeVersion": 3.3,
+			"position": [840, 480]
+		}
+	],
+	"connections": {
+		"When clicking \"Execute workflow\"": {
+			"main": [
+				[
+					{
+						"node": "Switch",
+						"type": "main",
+						"index": 0
+					}
+				]
+			]
+		},
+		"Switch": {
+			"main": [
+				null,
+				null,
+				[
+					{
+						"node": "Edit Fields",
+						"type": "main",
+						"index": 0
+					}
+				]
+			]
+		}
+	},
+	"pinData": {}
+}