fix(Linear Node): Fix issue with error handling (#12191)

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

@@ -0,0 +1,135 @@
+import type {
+	IExecuteFunctions,
+	IHookFunctions,
+	ILoadOptionsFunctions,
+	IWebhookFunctions,
+} from 'n8n-workflow';
+import { NodeApiError } from 'n8n-workflow';
+
+import { capitalizeFirstLetter, linearApiRequest, sort } from '../GenericFunctions';
+
+describe('Linear -> GenericFunctions', () => {
+	const mockHttpRequestWithAuthentication = jest.fn();
+
+	describe('linearApiRequest', () => {
+		let mockExecuteFunctions:
+			| IExecuteFunctions
+			| IWebhookFunctions
+			| IHookFunctions
+			| ILoadOptionsFunctions;
+
+		const setupMockFunctions = (authentication: string) => {
+			mockExecuteFunctions = {
+				getNodeParameter: jest.fn().mockReturnValue(authentication),
+				helpers: {
+					httpRequestWithAuthentication: mockHttpRequestWithAuthentication,
+				},
+				getNode: jest.fn().mockReturnValue({}),
+			} as unknown as
+				| IExecuteFunctions
+				| IWebhookFunctions
+				| IHookFunctions
+				| ILoadOptionsFunctions;
+			jest.clearAllMocks();
+		};
+
+		beforeEach(() => {
+			setupMockFunctions('apiToken');
+		});
+
+		it('should make a successful API request', async () => {
+			const response = { data: { success: true } };
+
+			mockHttpRequestWithAuthentication.mockResolvedValue(response);
+
+			const result = await linearApiRequest.call(mockExecuteFunctions, {
+				query: '{ viewer { id } }',
+			});
+
+			expect(result).toEqual(response);
+			expect(mockExecuteFunctions.helpers.httpRequestWithAuthentication).toHaveBeenCalledWith(
+				'linearApi',
+				expect.objectContaining({
+					method: 'POST',
+					url: 'https://api.linear.app/graphql',
+					json: true,
+					body: { query: '{ viewer { id } }' },
+				}),
+			);
+		});
+
+		it('should handle API request errors', async () => {
+			const errorResponse = {
+				errors: [
+					{
+						message: 'Access denied',
+						extensions: {
+							userPresentableMessage: 'You need to have the "Admin" scope to create webhooks.',
+						},
+					},
+				],
+			};
+
+			mockHttpRequestWithAuthentication.mockResolvedValue(errorResponse);
+
+			await expect(
+				linearApiRequest.call(mockExecuteFunctions, { query: '{ viewer { id } }' }),
+			).rejects.toThrow(NodeApiError);
+
+			expect(mockExecuteFunctions.helpers.httpRequestWithAuthentication).toHaveBeenCalledWith(
+				'linearApi',
+				expect.objectContaining({
+					method: 'POST',
+					url: 'https://api.linear.app/graphql',
+					json: true,
+					body: { query: '{ viewer { id } }' },
+				}),
+			);
+		});
+	});
+
+	describe('capitalizeFirstLetter', () => {
+		it('should capitalize the first letter of a string', () => {
+			expect(capitalizeFirstLetter('hello')).toBe('Hello');
+			expect(capitalizeFirstLetter('world')).toBe('World');
+			expect(capitalizeFirstLetter('capitalize')).toBe('Capitalize');
+		});
+
+		it('should return an empty string if input is empty', () => {
+			expect(capitalizeFirstLetter('')).toBe('');
+		});
+
+		it('should handle single character strings', () => {
+			expect(capitalizeFirstLetter('a')).toBe('A');
+			expect(capitalizeFirstLetter('b')).toBe('B');
+		});
+
+		it('should not change the case of the rest of the string', () => {
+			expect(capitalizeFirstLetter('hELLO')).toBe('HELLO');
+			expect(capitalizeFirstLetter('wORLD')).toBe('WORLD');
+		});
+	});
+
+	describe('sort', () => {
+		it('should sort objects by name in ascending order', () => {
+			const array = [{ name: 'banana' }, { name: 'apple' }, { name: 'cherry' }];
+
+			const sortedArray = array.sort(sort);
+
+			expect(sortedArray).toEqual([{ name: 'apple' }, { name: 'banana' }, { name: 'cherry' }]);
+		});
+
+		it('should handle case insensitivity', () => {
+			const array = [{ name: 'Banana' }, { name: 'apple' }, { name: 'cherry' }];
+
+			const sortedArray = array.sort(sort);
+
+			expect(sortedArray).toEqual([{ name: 'apple' }, { name: 'Banana' }, { name: 'cherry' }]);
+		});
+
+		it('should return 0 for objects with the same name', () => {
+			const result = sort({ name: 'apple' }, { name: 'apple' });
+			expect(result).toBe(0);
+		});
+	});
+});