feat(Linear Node): Add options to add a link and a comment to an issue (#13464)

packages/nodes-base/nodes/Linear/CommentDescription.ts

@@ -0,0 +1,78 @@
+import type { INodeProperties } from 'n8n-workflow';
+
+export const commentOperations: INodeProperties[] = [
+	{
+		displayName: 'Operation',
+		name: 'operation',
+		type: 'options',
+		noDataExpression: true,
+		displayOptions: {
+			show: {
+				resource: ['comment'],
+			},
+		},
+		options: [
+			{
+				name: 'Add Comment',
+				value: 'addComment',
+				description: 'Add a comment to an issue',
+				action: 'Add a comment to an issue',
+			},
+		],
+		default: 'addComment',
+	},
+];
+
+export const commentFields: INodeProperties[] = [
+	/* -------------------------------------------------------------------------- */
+	/*                                comment:addComment                          */
+	/* -------------------------------------------------------------------------- */
+	{
+		displayName: 'Issue ID',
+		name: 'issueId',
+		type: 'string',
+		required: true,
+		displayOptions: {
+			show: {
+				resource: ['comment'],
+				operation: ['addComment'],
+			},
+		},
+		default: '',
+	},
+	{
+		displayName: 'Comment',
+		name: 'comment',
+		type: 'string',
+		required: true,
+		displayOptions: {
+			show: {
+				resource: ['comment'],
+				operation: ['addComment'],
+			},
+		},
+		default: '',
+	},
+	{
+		displayName: 'Additional Fields',
+		name: 'additionalFields',
+		type: 'collection',
+		placeholder: 'Add Field',
+		default: {},
+		displayOptions: {
+			show: {
+				resource: ['comment'],
+				operation: ['addComment'],
+			},
+		},
+		options: [
+			{
+				displayName: 'Parent Comment ID',
+				name: 'parentId',
+				type: 'string',
+				description: 'ID of the parent comment if this is a reply',
+				default: '',
+			},
+		],
+	},
+];

packages/nodes-base/nodes/Linear/IssueDescription.ts

@@ -12,6 +12,12 @@ export const issueOperations: INodeProperties[] = [
 			},
 		},
 		options: [
+			{
+				name: 'Add Link',
+				value: 'addLink',
+				description: 'Add a link to an issue',
+				action: 'Add a link to an issue',
+			},
 			{
 				name: 'Create',
 				value: 'create',
@@ -164,7 +170,7 @@ export const issueFields: INodeProperties[] = [
 		displayOptions: {
 			show: {
 				resource: ['issue'],
-				operation: ['get', 'delete'],
+				operation: ['addLink', 'get', 'delete'],
 			},
 		},
 		default: '',
@@ -307,4 +313,20 @@ export const issueFields: INodeProperties[] = [
 			},
 		],
 	},
+	/* -------------------------------------------------------------------------- */
+	/*                         	issue:addLink                                  */
+	/* -------------------------------------------------------------------------- */
+	{
+		displayName: 'Link',
+		name: 'link',
+		type: 'string',
+		required: true,
+		displayOptions: {
+			show: {
+				resource: ['issue'],
+				operation: ['addLink'],
+			},
+		},
+		default: '',
+	},
 ];

packages/nodes-base/nodes/Linear/Linear.node.ts

@@ -14,6 +14,7 @@ import {
 	NodeConnectionTypes,
 } from 'n8n-workflow';
 
+import { commentFields, commentOperations } from './CommentDescription';
 import {
 	linearApiRequest,
 	linearApiRequestAllItems,
@@ -85,6 +86,10 @@ export class Linear implements INodeType {
 				type: 'options',
 				noDataExpression: true,
 				options: [
+					{
+						name: 'Comment',
+						value: 'comment',
+					},
 					{
 						name: 'Issue',
 						value: 'issue',
@@ -92,6 +97,8 @@ export class Linear implements INodeType {
 				],
 				default: 'issue',
 			},
+			...commentOperations,
+			...commentFields,
 			...issueOperations,
 			...issueFields,
 		],
@@ -289,6 +296,39 @@ export class Linear implements INodeType {
 						responseData = await linearApiRequest.call(this, body);
 						responseData = responseData?.data?.issueUpdate?.issue;
 					}
+					if (operation === 'addLink') {
+						const issueId = this.getNodeParameter('issueId', i) as string;
+						const body: IGraphqlBody = {
+							query: query.addIssueLink(),
+							variables: {
+								issueId,
+								url: this.getNodeParameter('link', i),
+							},
+						};
+
+						responseData = await linearApiRequest.call(this, body);
+						responseData = responseData?.data?.attachmentLinkURL;
+					}
+				} else if (resource === 'comment') {
+					if (operation === 'addComment') {
+						const issueId = this.getNodeParameter('issueId', i) as string;
+						const body = this.getNodeParameter('comment', i) as string;
+						const additionalFields = this.getNodeParameter('additionalFields', i);
+						const requestBody: IGraphqlBody = {
+							query: query.addComment(),
+							variables: {
+								issueId,
+								body,
+							},
+						};
+
+						if (additionalFields.parentId && (additionalFields.parentId as string).trim() !== '') {
+							requestBody.variables.parentId = additionalFields.parentId as string;
+						}
+
+						responseData = await linearApiRequest.call(this, requestBody);
+						responseData = responseData?.data?.commentCreate;
+					}
 				}
 
 				const executionData = this.helpers.constructExecutionMetaData(

packages/nodes-base/nodes/Linear/Queries.ts

@@ -218,4 +218,21 @@ export const query = {
 			}
 		}`;
 	},
+	addComment() {
+		return `mutation CommentCreate ($issueId: String!, $body: String!, $parentId: String) {
+			commentCreate(input: {issueId: $issueId, body: $body, parentId: $parentId}) {
+				success
+				comment {
+					id
+				}
+			}
+		}`;
+	},
+	addIssueLink() {
+		return `mutation AttachmentLinkURL($url: String!, $issueId: String!) {
+  		attachmentLinkURL(url: $url, issueId: $issueId) {
+    		success
+  		}
+		}`;
+	},
 };

packages/nodes-base/nodes/Linear/test/GenericFunctions.test.ts

@@ -111,25 +111,66 @@ describe('Linear -> GenericFunctions', () => {
 	});
 
 	describe('sort', () => {
-		it('should sort objects by name in ascending order', () => {
-			const array = [{ name: 'banana' }, { name: 'apple' }, { name: 'cherry' }];
+		it('should correctly sort objects by name in ascending order', () => {
+			// Test data
+			const items = [
+				{ name: 'Banana', id: 3 },
+				{ name: 'apple', id: 2 },
+				{ name: 'Cherry', id: 1 },
+				{ name: 'date', id: 4 },
+			];
 
-			const sortedArray = array.sort(sort);
+			// Execute sort
+			const sorted = [...items].sort(sort);
 
-			expect(sortedArray).toEqual([{ name: 'apple' }, { name: 'banana' }, { name: 'cherry' }]);
+			// Verify sorted order (case-insensitive)
+			expect(sorted.map((item) => item.id)).toEqual([2, 3, 1, 4]);
+			expect(sorted.map((item) => item.name)).toEqual(['apple', 'Banana', 'Cherry', 'date']);
 		});
 
-		it('should handle case insensitivity', () => {
-			const array = [{ name: 'Banana' }, { name: 'apple' }, { name: 'cherry' }];
+		it('should treat uppercase and lowercase names as equal', () => {
+			const a = { name: 'apple' };
+			const b = { name: 'APPLE' };
 
-			const sortedArray = array.sort(sort);
-
-			expect(sortedArray).toEqual([{ name: 'apple' }, { name: 'Banana' }, { name: 'cherry' }]);
+			expect(sort(a, b)).toBe(0);
+			expect(sort(b, a)).toBe(0);
 		});
 
-		it('should return 0 for objects with the same name', () => {
-			const result = sort({ name: 'apple' }, { name: 'apple' });
-			expect(result).toBe(0);
+		it('should return -1 when first name comes before second name alphabetically', () => {
+			const a = { name: 'apple' };
+			const b = { name: 'banana' };
+
+			expect(sort(a, b)).toBe(-1);
+		});
+
+		it('should return 1 when first name comes after second name alphabetically', () => {
+			const a = { name: 'cherry' };
+			const b = { name: 'banana' };
+
+			expect(sort(a, b)).toBe(1);
+		});
+
+		it('should return 0 for identical names', () => {
+			const a = { name: 'apple' };
+			const b = { name: 'apple' };
+
+			expect(sort(a, b)).toBe(0);
+		});
+
+		it('should handle mixed case properly', () => {
+			// Test data
+			const items = [
+				{ name: 'abc', id: 1 },
+				{ name: 'ABC', id: 2 },
+				{ name: 'Abc', id: 3 },
+				{ name: 'aBC', id: 4 },
+			];
+
+			// They should all be considered equal in terms of sorting
+			const sorted = [...items].sort(sort);
+
+			// Original order should be maintained for equal values
+			expect(sorted.map((item) => item.id)).toEqual([1, 2, 3, 4]);
 		});
 	});
 });

packages/nodes-base/nodes/Linear/test/workflow/Linear.workflow.json

@@ -0,0 +1,525 @@
+{
+	"name": "Linear Test Workflow",
+	"nodes": [
+		{
+			"parameters": {},
+			"type": "n8n-nodes-base.manualTrigger",
+			"typeVersion": 1,
+			"position": [-80, 260],
+			"id": "4dbe018c-edec-46d3-b18d-f4517435e1f8",
+			"name": "When clicking ‘Execute workflow’"
+		},
+		{
+			"parameters": {},
+			"type": "n8n-nodes-base.noOp",
+			"typeVersion": 1,
+			"position": [400, -400],
+			"id": "512f2fec-df9f-46ac-8df3-e84fd352f7ff",
+			"name": "Create Comment - Output"
+		},
+		{
+			"parameters": {
+				"resource": "comment",
+				"issueId": "test-17",
+				"comment": "test",
+				"additionalFields": {}
+			},
+			"type": "n8n-nodes-base.linear",
+			"typeVersion": 1,
+			"position": [200, -400],
+			"id": "be60984b-28a5-4c5a-8926-87824300e63e",
+			"name": "Add Comment",
+			"credentials": {
+				"linearApi": {
+					"id": "6bJTI5tzXOk9m6cv",
+					"name": "86-88"
+				}
+			}
+		},
+		{
+			"parameters": {
+				"resource": "comment",
+				"issueId": "test-17",
+				"comment": "Add to parent",
+				"additionalFields": {
+					"parentId": "ff12069e-fac8-4b18-8455-cc6b29fa1e77"
+				}
+			},
+			"type": "n8n-nodes-base.linear",
+			"typeVersion": 1,
+			"position": [200, -220],
+			"id": "328939ed-41ac-442e-819c-f470ce0986b4",
+			"name": "Add Comment - with parent",
+			"credentials": {
+				"linearApi": {
+					"id": "6bJTI5tzXOk9m6cv",
+					"name": "86-88"
+				}
+			}
+		},
+		{
+			"parameters": {},
+			"type": "n8n-nodes-base.noOp",
+			"typeVersion": 1,
+			"position": [400, -220],
+			"id": "d28e9fe2-4a7b-4714-aa15-a6c6732c4e0d",
+			"name": "Create Comment with Parent"
+		},
+		{
+			"parameters": {
+				"operation": "addLink",
+				"issueId": "test-17",
+				"link": "https://n8n.io"
+			},
+			"type": "n8n-nodes-base.linear",
+			"typeVersion": 1,
+			"position": [200, -20],
+			"id": "6ec9fdbc-eed8-4e9a-850b-973f72f6f3a5",
+			"name": "Add link to issue",
+			"credentials": {
+				"linearApi": {
+					"id": "6bJTI5tzXOk9m6cv",
+					"name": "86-88"
+				}
+			}
+		},
+		{
+			"parameters": {},
+			"type": "n8n-nodes-base.noOp",
+			"typeVersion": 1,
+			"position": [400, -20],
+			"id": "229e5b09-8867-44f5-a71c-da31d97ab1b5",
+			"name": "Add Link output"
+		},
+		{
+			"parameters": {
+				"teamId": "0a2994c1-5d99-48aa-ab22-8b5ba4711ebc",
+				"title": "This is a test issue",
+				"additionalFields": {
+					"assigneeId": "1c51f0c4-c552-4614-a534-8de1752ba7d7",
+					"description": "test description",
+					"priorityId": 3,
+					"stateId": "65a87a3a-5729-4d82-96bf-badccbeb49af"
+				}
+			},
+			"type": "n8n-nodes-base.linear",
+			"typeVersion": 1,
+			"position": [200, 160],
+			"id": "3262089e-902a-4922-b5e9-1bd2dae4915f",
+			"name": "Create Issue",
+			"credentials": {
+				"linearApi": {
+					"id": "6bJTI5tzXOk9m6cv",
+					"name": "86-88"
+				}
+			}
+		},
+		{
+			"parameters": {},
+			"type": "n8n-nodes-base.noOp",
+			"typeVersion": 1,
+			"position": [400, 160],
+			"id": "3515db04-1fb9-4c15-904b-1a34c7bd63fb",
+			"name": "Create Issue Response"
+		},
+		{
+			"parameters": {
+				"operation": "getAll",
+				"limit": 1
+			},
+			"type": "n8n-nodes-base.linear",
+			"typeVersion": 1,
+			"position": [200, 520],
+			"id": "912a5680-2d83-4d24-921b-f622cc8be0be",
+			"name": "Issue Get Many",
+			"credentials": {
+				"linearApi": {
+					"id": "6bJTI5tzXOk9m6cv",
+					"name": "86-88"
+				}
+			}
+		},
+		{
+			"parameters": {
+				"operation": "get",
+				"issueId": "test-18"
+			},
+			"type": "n8n-nodes-base.linear",
+			"typeVersion": 1,
+			"position": [200, 340],
+			"id": "8604ce38-89aa-4793-bd2d-13c7d4fce215",
+			"name": "Get Issue",
+			"credentials": {
+				"linearApi": {
+					"id": "6bJTI5tzXOk9m6cv",
+					"name": "86-88"
+				}
+			}
+		},
+		{
+			"parameters": {},
+			"type": "n8n-nodes-base.noOp",
+			"typeVersion": 1,
+			"position": [400, 520],
+			"id": "d01f72ce-4f5f-4a3f-9805-7975e67d041d",
+			"name": "Get Many Issues"
+		},
+		{
+			"parameters": {},
+			"type": "n8n-nodes-base.noOp",
+			"typeVersion": 1,
+			"position": [400, 340],
+			"id": "a2ad027f-8507-4488-84f5-f339ad826120",
+			"name": "Get Issue Output"
+		},
+		{
+			"parameters": {
+				"operation": "update",
+				"issueId": "test-18",
+				"updateFields": {
+					"assigneeId": "1c51f0c4-c552-4614-a534-8de1752ba7d7",
+					"description": "New Description",
+					"priorityId": 3,
+					"stateId": "622493c0-f4ee-456d-af65-49a7611ede7a",
+					"teamId": "0a2994c1-5d99-48aa-ab22-8b5ba4711ebc",
+					"title": "New Title"
+				}
+			},
+			"type": "n8n-nodes-base.linear",
+			"typeVersion": 1,
+			"position": [200, 700],
+			"id": "141d4f10-6812-40b4-a146-fa9cf929f86a",
+			"name": "Update Issue",
+			"credentials": {
+				"linearApi": {
+					"id": "6bJTI5tzXOk9m6cv",
+					"name": "86-88"
+				}
+			}
+		},
+		{
+			"parameters": {},
+			"type": "n8n-nodes-base.noOp",
+			"typeVersion": 1,
+			"position": [400, 700],
+			"id": "b08bba99-9d96-43be-8875-c72c7b51f734",
+			"name": "Update Issue Response"
+		},
+		{
+			"parameters": {
+				"operation": "delete",
+				"issueId": "test-18"
+			},
+			"type": "n8n-nodes-base.linear",
+			"typeVersion": 1,
+			"position": [200, 880],
+			"id": "d30a2ff2-f8cd-4277-b5c1-6f2df7985872",
+			"name": "Delete Issue",
+			"credentials": {
+				"linearApi": {
+					"id": "6bJTI5tzXOk9m6cv",
+					"name": "86-88"
+				}
+			}
+		},
+		{
+			"parameters": {},
+			"type": "n8n-nodes-base.noOp",
+			"typeVersion": 1,
+			"position": [400, 880],
+			"id": "8769421e-01ea-41ee-9e35-432408879869",
+			"name": "Delete Issue Response"
+		}
+	],
+	"pinData": {
+		"Create Comment - Output": [
+			{
+				"json": {
+					"success": true,
+					"comment": {
+						"id": "ff12069e-fac8-4b18-8455-cc6b29fa1e77"
+					}
+				}
+			}
+		],
+		"Create Comment with Parent": [
+			{
+				"json": {
+					"success": true,
+					"comment": {
+						"id": "bd0e4d70-7964-4877-aa30-d81534027f44"
+					}
+				}
+			}
+		],
+		"Add Link output": [
+			{
+				"json": {
+					"success": true
+				}
+			}
+		],
+		"Create Issue Response": [
+			{
+				"json": {
+					"id": "3c7316e3-4224-424d-8cc8-1dd3b96764b8",
+					"identifier": "TEST-18",
+					"title": "This is a test issue",
+					"priority": 3,
+					"archivedAt": null,
+					"assignee": {
+						"id": "1c51f0c4-c552-4614-a534-8de1752ba7d7",
+						"displayName": "nathan"
+					},
+					"state": {
+						"id": "65a87a3a-5729-4d82-96bf-badccbeb49af",
+						"name": "Backlog"
+					},
+					"createdAt": "2025-06-12T10:38:35.296Z",
+					"creator": {
+						"id": "1c51f0c4-c552-4614-a534-8de1752ba7d7",
+						"displayName": "nathan"
+					},
+					"description": "test description",
+					"dueDate": null,
+					"cycle": null
+				}
+			}
+		],
+		"Get Issue Output": [
+			{
+				"json": {
+					"id": "3c7316e3-4224-424d-8cc8-1dd3b96764b8",
+					"identifier": "TEST-18",
+					"title": "This is a test issue",
+					"priority": 3,
+					"archivedAt": null,
+					"assignee": {
+						"id": "1c51f0c4-c552-4614-a534-8de1752ba7d7",
+						"displayName": "nathan"
+					},
+					"state": {
+						"id": "65a87a3a-5729-4d82-96bf-badccbeb49af",
+						"name": "Backlog"
+					},
+					"createdAt": "2025-06-12T10:38:35.296Z",
+					"creator": {
+						"id": "1c51f0c4-c552-4614-a534-8de1752ba7d7",
+						"displayName": "nathan"
+					},
+					"description": "test description",
+					"dueDate": null,
+					"cycle": null
+				}
+			}
+		],
+		"Get Many Issues": [
+			{
+				"json": {
+					"id": "3c7316e3-4224-424d-8cc8-1dd3b96764b8",
+					"identifier": "TEST-18",
+					"title": "This is a test issue",
+					"priority": 3,
+					"archivedAt": null,
+					"assignee": {
+						"id": "1c51f0c4-c552-4614-a534-8de1752ba7d7",
+						"displayName": "nathan"
+					},
+					"state": {
+						"id": "65a87a3a-5729-4d82-96bf-badccbeb49af",
+						"name": "Backlog"
+					},
+					"createdAt": "2025-06-12T10:38:35.296Z",
+					"creator": {
+						"id": "1c51f0c4-c552-4614-a534-8de1752ba7d7",
+						"displayName": "nathan"
+					},
+					"description": "test description",
+					"dueDate": null,
+					"cycle": null
+				}
+			}
+		],
+		"Update Issue Response": [
+			{
+				"json": {
+					"id": "3c7316e3-4224-424d-8cc8-1dd3b96764b8",
+					"identifier": "TEST-18",
+					"title": "New Title",
+					"priority": 3,
+					"archivedAt": null,
+					"assignee": {
+						"id": "1c51f0c4-c552-4614-a534-8de1752ba7d7",
+						"displayName": "nathan"
+					},
+					"state": {
+						"id": "622493c0-f4ee-456d-af65-49a7611ede7a",
+						"name": "Canceled"
+					},
+					"createdAt": "2025-06-12T10:38:35.296Z",
+					"creator": {
+						"id": "1c51f0c4-c552-4614-a534-8de1752ba7d7",
+						"displayName": "nathan"
+					},
+					"description": "New Description",
+					"dueDate": null,
+					"cycle": null
+				}
+			}
+		],
+		"Delete Issue Response": [
+			{
+				"json": {
+					"success": true
+				}
+			}
+		]
+	},
+	"connections": {
+		"When clicking ‘Execute workflow’": {
+			"main": [
+				[
+					{
+						"node": "Add Comment",
+						"type": "main",
+						"index": 0
+					},
+					{
+						"node": "Add Comment - with parent",
+						"type": "main",
+						"index": 0
+					},
+					{
+						"node": "Add link to issue",
+						"type": "main",
+						"index": 0
+					},
+					{
+						"node": "Create Issue",
+						"type": "main",
+						"index": 0
+					},
+					{
+						"node": "Get Issue",
+						"type": "main",
+						"index": 0
+					},
+					{
+						"node": "Issue Get Many",
+						"type": "main",
+						"index": 0
+					},
+					{
+						"node": "Update Issue",
+						"type": "main",
+						"index": 0
+					},
+					{
+						"node": "Delete Issue",
+						"type": "main",
+						"index": 0
+					}
+				]
+			]
+		},
+		"Add Comment": {
+			"main": [
+				[
+					{
+						"node": "Create Comment - Output",
+						"type": "main",
+						"index": 0
+					}
+				]
+			]
+		},
+		"Add Comment - with parent": {
+			"main": [
+				[
+					{
+						"node": "Create Comment with Parent",
+						"type": "main",
+						"index": 0
+					}
+				]
+			]
+		},
+		"Add link to issue": {
+			"main": [
+				[
+					{
+						"node": "Add Link output",
+						"type": "main",
+						"index": 0
+					}
+				]
+			]
+		},
+		"Create Issue": {
+			"main": [
+				[
+					{
+						"node": "Create Issue Response",
+						"type": "main",
+						"index": 0
+					}
+				]
+			]
+		},
+		"Get Issue": {
+			"main": [
+				[
+					{
+						"node": "Get Issue Output",
+						"type": "main",
+						"index": 0
+					}
+				]
+			]
+		},
+		"Issue Get Many": {
+			"main": [
+				[
+					{
+						"node": "Get Many Issues",
+						"type": "main",
+						"index": 0
+					}
+				]
+			]
+		},
+		"Update Issue": {
+			"main": [
+				[
+					{
+						"node": "Update Issue Response",
+						"type": "main",
+						"index": 0
+					}
+				]
+			]
+		},
+		"Delete Issue": {
+			"main": [
+				[
+					{
+						"node": "Delete Issue Response",
+						"type": "main",
+						"index": 0
+					}
+				]
+			]
+		}
+	},
+	"active": false,
+	"settings": {
+		"executionOrder": "v1"
+	},
+	"versionId": "2cc012ac-e157-4f3e-97d8-15fb2da556ef",
+	"meta": {
+		"templateCredsSetupCompleted": true,
+		"instanceId": "0fa937d34dcabeff4bd6480d3b42cc95edf3bc20e6810819086ef1ce2623639d"
+	},
+	"id": "6FHfNEY4tcmoXVeg",
+	"tags": []
+}

packages/nodes-base/nodes/Linear/test/workflow/Linear.workflow.test.ts

@@ -0,0 +1,43 @@
+import { NodeTestHarness } from '@nodes-testing/node-test-harness';
+import nock from 'nock';
+
+import {
+	addCommentRequest,
+	addCommentWithParentRequest,
+	addCommentLink,
+	issueCreateRequest,
+	getIssueRequest,
+	getManyIssuesRequest,
+	updateIssueRequest,
+	deleteIssueRequest,
+} from './apiRequest';
+import {
+	commentCreateResponse,
+	commentCreateWithParentResponse,
+	attachmentLinkURLResponse,
+	issueCreateResponse,
+	getIssueResponse,
+	getManyIssueResponse,
+	issueUpdateResponse,
+	deleteIssueResponse,
+} from './apiResponses';
+
+describe('Linear', () => {
+	describe('Run Test Workflow', () => {
+		beforeAll(() => {
+			const mock = nock('https://api.linear.app');
+			mock.post('/graphql', addCommentRequest).reply(200, commentCreateResponse);
+			mock.post('/graphql', addCommentLink).reply(200, attachmentLinkURLResponse);
+			mock
+				.post('/graphql', addCommentWithParentRequest)
+				.reply(200, commentCreateWithParentResponse);
+			mock.post('/graphql', issueCreateRequest).reply(200, issueCreateResponse);
+			mock.post('/graphql', getIssueRequest).reply(200, getIssueResponse);
+			mock.post('/graphql', getManyIssuesRequest).reply(200, getManyIssueResponse);
+			mock.post('/graphql', updateIssueRequest).reply(200, issueUpdateResponse);
+			mock.post('/graphql', deleteIssueRequest).reply(200, deleteIssueResponse);
+		});
+
+		new NodeTestHarness().setupTests();
+	});
+});

packages/nodes-base/nodes/Linear/test/workflow/apiRequest.ts

@@ -0,0 +1,245 @@
+export const addCommentRequest = {
+	query: `mutation CommentCreate ($issueId: String!, $body: String!, $parentId: String) {
+			commentCreate(input: {issueId: $issueId, body: $body, parentId: $parentId}) {
+				success
+				comment {
+					id
+				}
+			}
+		}`,
+	variables: {
+		issueId: 'test-17',
+		body: 'test',
+	},
+};
+
+export const addCommentWithParentRequest = {
+	query: `mutation CommentCreate ($issueId: String!, $body: String!, $parentId: String) {
+			commentCreate(input: {issueId: $issueId, body: $body, parentId: $parentId}) {
+				success
+				comment {
+					id
+				}
+			}
+		}`,
+	variables: {
+		issueId: 'test-17',
+		body: 'Add to parent',
+		parentId: 'ff12069e-fac8-4b18-8455-cc6b29fa1e77',
+	},
+};
+
+export const addCommentLink = {
+	query: `mutation AttachmentLinkURL($url: String!, $issueId: String!) {
+  		attachmentLinkURL(url: $url, issueId: $issueId) {
+    		success
+  		}
+		}`,
+	variables: {
+		issueId: 'test-17',
+		url: 'https://n8n.io',
+	},
+};
+
+export const issueCreateRequest = {
+	query: `mutation IssueCreate (
+			$title: String!,
+			$teamId: String!,
+			$description: String,
+			$assigneeId: String,
+			$priorityId: Int,
+			$stateId: String){
+			issueCreate(
+				input: {
+					title: $title
+					description: $description
+					teamId: $teamId
+					assigneeId: $assigneeId
+					priority: $priorityId
+					stateId: $stateId
+				}
+			) {
+				success
+					issue {
+						id,
+						identifier,
+						title,
+						priority
+						archivedAt
+						assignee {
+							id
+							displayName
+						}
+						state {
+							id
+							name
+						}
+						createdAt
+						creator {
+							id
+							displayName
+						}
+						description
+						dueDate
+						cycle {
+							id
+							name
+						}
+					}
+				}
+			}`,
+	variables: {
+		teamId: '0a2994c1-5d99-48aa-ab22-8b5ba4711ebc',
+		title: 'This is a test issue',
+		assigneeId: '1c51f0c4-c552-4614-a534-8de1752ba7d7',
+		description: 'test description',
+		priorityId: 3,
+		stateId: '65a87a3a-5729-4d82-96bf-badccbeb49af',
+	},
+};
+
+export const getIssueRequest = {
+	query: `query Issue($issueId: String!) {
+			issue(id: $issueId) {
+				id,
+				identifier,
+				title,
+				priority,
+				archivedAt,
+				assignee {
+					id,
+					displayName
+				}
+				state {
+					id
+					name
+				}
+				createdAt
+				creator {
+					id
+					displayName
+				}
+				description
+				dueDate
+				cycle {
+					id
+					name
+				}
+			}
+		}`,
+	variables: {
+		issueId: 'test-18',
+	},
+};
+
+export const getManyIssuesRequest = {
+	query: `query Issue ($first: Int, $after: String){
+					issues (first: $first, after: $after){
+						nodes {
+						id,
+						identifier,
+						title,
+						priority
+						archivedAt
+						assignee {
+							id
+							displayName
+						}
+						state {
+							id
+							name
+						}
+						createdAt
+						creator {
+							id
+							displayName
+						}
+						description
+						dueDate
+						cycle {
+							id
+							name
+						}
+					}
+					pageInfo {
+						hasNextPage
+						endCursor
+					}
+				}
+			}`,
+	variables: {
+		first: 1,
+		after: null,
+	},
+};
+
+export const updateIssueRequest = {
+	query: `mutation IssueUpdate (
+		$issueId: String!,
+		$title: String,
+		$teamId: String,
+		$description: String,
+		$assigneeId: String,
+		$priorityId: Int,
+		$stateId: String){
+		issueUpdate(
+			id: $issueId,
+			input: {
+				title: $title
+				description: $description
+				teamId: $teamId
+				assigneeId: $assigneeId
+				priority: $priorityId
+				stateId: $stateId
+			}
+		) {
+			success
+				issue {
+					id,
+					identifier,
+					title,
+					priority
+					archivedAt
+					assignee {
+						id
+						displayName
+					}
+					state {
+						id
+						name
+					}
+					createdAt
+					creator {
+						id
+						displayName
+					}
+					description
+					dueDate
+					cycle {
+						id
+						name
+					}
+				}
+			}
+		}`,
+	variables: {
+		issueId: 'test-18',
+		assigneeId: '1c51f0c4-c552-4614-a534-8de1752ba7d7',
+		description: 'New Description',
+		priorityId: 3,
+		stateId: '622493c0-f4ee-456d-af65-49a7611ede7a',
+		teamId: '0a2994c1-5d99-48aa-ab22-8b5ba4711ebc',
+		title: 'New Title',
+	},
+};
+
+export const deleteIssueRequest = {
+	query: `mutation IssueDelete ($issueId: String!) {
+					issueDelete(id: $issueId) {
+						success
+					}
+				}`,
+	variables: {
+		issueId: 'test-18',
+	},
+};

packages/nodes-base/nodes/Linear/test/workflow/apiResponses.ts

@@ -0,0 +1,163 @@
+export const commentCreateResponse = {
+	data: {
+		commentCreate: {
+			success: true,
+			comment: {
+				id: 'ff12069e-fac8-4b18-8455-cc6b29fa1e77',
+			},
+		},
+	},
+};
+
+export const commentCreateWithParentResponse = {
+	data: {
+		commentCreate: {
+			success: true,
+			comment: {
+				id: 'bd0e4d70-7964-4877-aa30-d81534027f44',
+			},
+		},
+	},
+};
+
+export const attachmentLinkURLResponse = {
+	data: {
+		attachmentLinkURL: {
+			success: true,
+		},
+	},
+};
+
+export const issueCreateResponse = {
+	data: {
+		issueCreate: {
+			success: true,
+			issue: {
+				id: '3c7316e3-4224-424d-8cc8-1dd3b96764b8',
+				identifier: 'TEST-18',
+				title: 'This is a test issue',
+				priority: 3,
+				archivedAt: null,
+				assignee: {
+					id: '1c51f0c4-c552-4614-a534-8de1752ba7d7',
+					displayName: 'nathan',
+				},
+				state: {
+					id: '65a87a3a-5729-4d82-96bf-badccbeb49af',
+					name: 'Backlog',
+				},
+				createdAt: '2025-06-12T10:38:35.296Z',
+				creator: {
+					id: '1c51f0c4-c552-4614-a534-8de1752ba7d7',
+					displayName: 'nathan',
+				},
+				description: 'test description',
+				dueDate: null,
+				cycle: null,
+			},
+		},
+	},
+};
+
+export const getIssueResponse = {
+	data: {
+		issue: {
+			id: '3c7316e3-4224-424d-8cc8-1dd3b96764b8',
+			identifier: 'TEST-18',
+			title: 'This is a test issue',
+			priority: 3,
+			archivedAt: null,
+			assignee: {
+				id: '1c51f0c4-c552-4614-a534-8de1752ba7d7',
+				displayName: 'nathan',
+			},
+			state: {
+				id: '65a87a3a-5729-4d82-96bf-badccbeb49af',
+				name: 'Backlog',
+			},
+			createdAt: '2025-06-12T10:38:35.296Z',
+			creator: {
+				id: '1c51f0c4-c552-4614-a534-8de1752ba7d7',
+				displayName: 'nathan',
+			},
+			description: 'test description',
+			dueDate: null,
+			cycle: null,
+		},
+	},
+};
+
+export const getManyIssueResponse = {
+	data: {
+		issues: {
+			nodes: [
+				{
+					id: '3c7316e3-4224-424d-8cc8-1dd3b96764b8',
+					identifier: 'TEST-18',
+					title: 'This is a test issue',
+					priority: 3,
+					archivedAt: null,
+					assignee: {
+						id: '1c51f0c4-c552-4614-a534-8de1752ba7d7',
+						displayName: 'nathan',
+					},
+					state: {
+						id: '65a87a3a-5729-4d82-96bf-badccbeb49af',
+						name: 'Backlog',
+					},
+					createdAt: '2025-06-12T10:38:35.296Z',
+					creator: {
+						id: '1c51f0c4-c552-4614-a534-8de1752ba7d7',
+						displayName: 'nathan',
+					},
+					description: 'test description',
+					dueDate: null,
+					cycle: null,
+				},
+			],
+			pageInfo: {
+				hasNextPage: true,
+				endCursor: '3c7316e3-4224-424d-8cc8-1dd3b96764b8',
+			},
+		},
+	},
+};
+
+export const issueUpdateResponse = {
+	data: {
+		issueUpdate: {
+			success: true,
+			issue: {
+				id: '3c7316e3-4224-424d-8cc8-1dd3b96764b8',
+				identifier: 'TEST-18',
+				title: 'New Title',
+				priority: 3,
+				archivedAt: null,
+				assignee: {
+					id: '1c51f0c4-c552-4614-a534-8de1752ba7d7',
+					displayName: 'nathan',
+				},
+				state: {
+					id: '622493c0-f4ee-456d-af65-49a7611ede7a',
+					name: 'Canceled',
+				},
+				createdAt: '2025-06-12T10:38:35.296Z',
+				creator: {
+					id: '1c51f0c4-c552-4614-a534-8de1752ba7d7',
+					displayName: 'nathan',
+				},
+				description: 'New Description',
+				dueDate: null,
+				cycle: null,
+			},
+		},
+	},
+};
+
+export const deleteIssueResponse = {
+	data: {
+		issueDelete: {
+			success: true,
+		},
+	},
+};