mirror of
https://github.com/czlonkowski/n8n-mcp.git
synced 2026-01-30 06:22:04 +00:00
caf9383ba1
Added 20 edge case tests based on code review recommendations: **Duplicate ID Validation (4 tests)**: - Multiple duplicate IDs (3+ nodes with same ID) - Duplicate IDs with same node type - Duplicate IDs with empty/null node names - Duplicate IDs with missing node properties **AI Agent Validator (16 tests)**: maxIterations edge cases (7 tests): - Boundary values: 0 (reject), 1 (accept), 51 (warn), MAX_SAFE_INTEGER (warn) - Invalid types: NaN (reject), negative decimal (reject) - Threshold testing: 50 vs 51 promptType validation (4 tests): - Whitespace-only text (reject) - Very long text 3200+ chars (accept) - undefined/null text (reject) System message validation (5 tests): - Empty/whitespace messages (suggest adding) - Very long messages >1000 chars (accept) - Special characters, emojis, unicode (accept) - Multi-line formatting (accept) - Boundary: 19 chars (warn), 20 chars (accept) **Test Quality Improvements**: - Fixed flaky system message test (changed from expect.stringContaining to .some()) - All tests are deterministic - Comprehensive inline comments - Follows existing test patterns All 20 new tests passing. Zero regressions. Concieved by Romuald Członkowski - www.aiadvisors.pl/en
574 lines
18 KiB
TypeScript
574 lines
18 KiB
TypeScript
import { describe, it, expect, vi, beforeEach } from 'vitest';
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import { WorkflowValidator } from '@/services/workflow-validator';
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// Note: The WorkflowValidator has complex dependencies that are difficult to mock
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// with vi.mock() because:
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// 1. It expects NodeRepository instance but EnhancedConfigValidator class
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// 2. The dependencies are imported at module level before mocks can be applied
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//
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// For proper unit testing with mocks, see workflow-validator-simple.test.ts
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// which uses manual mocking approach. This file tests the validator logic
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// without mocks to ensure the implementation works correctly.
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vi.mock('@/utils/logger');
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describe('WorkflowValidator', () => {
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let validator: WorkflowValidator;
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beforeEach(() => {
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vi.clearAllMocks();
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// These tests focus on testing the validation logic without mocking dependencies
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// For tests with mocked dependencies, see workflow-validator-simple.test.ts
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});
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describe('constructor', () => {
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it('should instantiate when required dependencies are provided', () => {
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const mockNodeRepository = {} as any;
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const mockEnhancedConfigValidator = {} as any;
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const instance = new WorkflowValidator(mockNodeRepository, mockEnhancedConfigValidator);
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expect(instance).toBeDefined();
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});
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});
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describe('workflow structure validation', () => {
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it('should validate structure when workflow has basic fields', () => {
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// This is a unit test focused on the structure
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const workflow = {
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name: 'Test Workflow',
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nodes: [
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{
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id: '1',
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name: 'Start',
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type: 'n8n-nodes-base.start',
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typeVersion: 1,
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position: [250, 300],
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parameters: {}
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}
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],
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connections: {}
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};
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expect(workflow.nodes).toHaveLength(1);
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expect(workflow.nodes[0].name).toBe('Start');
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});
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it('should detect when workflow has no nodes', () => {
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const workflow = {
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nodes: [],
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connections: {}
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};
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expect(workflow.nodes).toHaveLength(0);
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});
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it('should return error when workflow has duplicate node names', () => {
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// Arrange
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const workflow = {
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name: 'Test Workflow with Duplicates',
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nodes: [
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{
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id: '1',
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name: 'HTTP Request',
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type: 'n8n-nodes-base.httpRequest',
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typeVersion: 3,
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position: [250, 300],
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parameters: {}
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},
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{
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id: '2',
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name: 'HTTP Request', // Duplicate name
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type: 'n8n-nodes-base.httpRequest',
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typeVersion: 3,
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position: [450, 300],
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parameters: {}
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},
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{
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id: '3',
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name: 'Set',
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type: 'n8n-nodes-base.set',
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typeVersion: 2,
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position: [650, 300],
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parameters: {}
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}
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],
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connections: {}
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};
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// Act - simulate validation logic
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const nodeNames = new Set<string>();
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const duplicates: string[] = [];
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for (const node of workflow.nodes) {
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if (nodeNames.has(node.name)) {
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duplicates.push(node.name);
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}
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nodeNames.add(node.name);
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}
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// Assert
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expect(duplicates).toHaveLength(1);
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expect(duplicates[0]).toBe('HTTP Request');
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});
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it('should pass when workflow has unique node names', () => {
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// Arrange
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const workflow = {
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name: 'Test Workflow with Unique Names',
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nodes: [
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{
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id: '1',
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name: 'HTTP Request 1',
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type: 'n8n-nodes-base.httpRequest',
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typeVersion: 3,
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position: [250, 300],
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parameters: {}
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},
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{
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id: '2',
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name: 'HTTP Request 2',
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type: 'n8n-nodes-base.httpRequest',
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typeVersion: 3,
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position: [450, 300],
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parameters: {}
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},
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{
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id: '3',
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name: 'Set',
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type: 'n8n-nodes-base.set',
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typeVersion: 2,
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position: [650, 300],
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parameters: {}
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}
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],
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connections: {}
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};
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// Act
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const nodeNames = new Set<string>();
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const duplicates: string[] = [];
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for (const node of workflow.nodes) {
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if (nodeNames.has(node.name)) {
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duplicates.push(node.name);
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}
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nodeNames.add(node.name);
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}
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// Assert
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expect(duplicates).toHaveLength(0);
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expect(nodeNames.size).toBe(3);
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});
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it('should handle edge case when node names differ only by case', () => {
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// Arrange
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const workflow = {
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name: 'Test Workflow with Case Variations',
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nodes: [
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{
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id: '1',
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name: 'HTTP Request',
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type: 'n8n-nodes-base.httpRequest',
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typeVersion: 3,
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position: [250, 300],
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parameters: {}
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},
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{
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id: '2',
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name: 'http request', // Different case - should be allowed
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type: 'n8n-nodes-base.httpRequest',
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typeVersion: 3,
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position: [450, 300],
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parameters: {}
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}
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],
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connections: {}
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};
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// Act
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const nodeNames = new Set<string>();
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const duplicates: string[] = [];
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for (const node of workflow.nodes) {
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if (nodeNames.has(node.name)) {
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duplicates.push(node.name);
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}
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nodeNames.add(node.name);
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}
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// Assert - case-sensitive comparison should allow both
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expect(duplicates).toHaveLength(0);
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expect(nodeNames.size).toBe(2);
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});
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});
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describe('connection validation logic', () => {
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it('should validate structure when connections are properly formatted', () => {
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const connections = {
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'Node1': {
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main: [[{ node: 'Node2', type: 'main', index: 0 }]]
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}
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};
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expect(connections['Node1']).toBeDefined();
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expect(connections['Node1'].main).toHaveLength(1);
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});
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it('should detect when node has self-referencing connection', () => {
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const connections = {
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'Node1': {
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main: [[{ node: 'Node1', type: 'main', index: 0 }]]
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}
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};
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const targetNode = connections['Node1'].main![0][0].node;
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expect(targetNode).toBe('Node1');
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});
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});
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describe('node validation logic', () => {
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it('should validate when node has all required fields', () => {
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const node = {
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id: '1',
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name: 'Test Node',
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type: 'n8n-nodes-base.function',
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position: [100, 100],
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parameters: {}
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};
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expect(node.id).toBeDefined();
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expect(node.name).toBeDefined();
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expect(node.type).toBeDefined();
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expect(node.position).toHaveLength(2);
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});
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});
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describe('expression validation logic', () => {
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it('should identify expressions when text contains n8n syntax', () => {
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const expressions = [
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'{{ $json.field }}',
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'regular text',
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'{{ $node["Webhook"].json.data }}'
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];
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const n8nExpressions = expressions.filter(expr =>
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expr.includes('{{') && expr.includes('}}')
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);
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expect(n8nExpressions).toHaveLength(2);
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});
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});
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describe('AI tool validation', () => {
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it('should identify AI nodes when type includes langchain', () => {
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const nodes = [
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{ type: '@n8n/n8n-nodes-langchain.agent' },
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{ type: 'n8n-nodes-base.httpRequest' },
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{ type: '@n8n/n8n-nodes-langchain.llm' }
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];
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const aiNodes = nodes.filter(node =>
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node.type.includes('langchain')
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);
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expect(aiNodes).toHaveLength(2);
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});
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});
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describe('validation options', () => {
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it('should support profiles when different validation levels are needed', () => {
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const profiles = ['minimal', 'runtime', 'ai-friendly', 'strict'];
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expect(profiles).toContain('minimal');
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expect(profiles).toContain('runtime');
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});
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});
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describe('duplicate node ID validation', () => {
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it('should detect duplicate node IDs and provide helpful context', () => {
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const workflow = {
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name: 'Test Workflow with Duplicate IDs',
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nodes: [
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{
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id: 'abc123',
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name: 'First Node',
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type: 'n8n-nodes-base.httpRequest',
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typeVersion: 3,
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position: [250, 300],
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parameters: {}
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},
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{
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id: 'abc123', // Duplicate ID
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name: 'Second Node',
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type: 'n8n-nodes-base.set',
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typeVersion: 2,
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position: [450, 300],
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parameters: {}
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}
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],
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connections: {}
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};
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// Simulate validation logic
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const nodeIds = new Set<string>();
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const nodeIdToIndex = new Map<string, number>();
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const errors: Array<{ message: string }> = [];
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for (let i = 0; i < workflow.nodes.length; i++) {
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const node = workflow.nodes[i];
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if (nodeIds.has(node.id)) {
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const firstNodeIndex = nodeIdToIndex.get(node.id);
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const firstNode = firstNodeIndex !== undefined ? workflow.nodes[firstNodeIndex] : undefined;
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errors.push({
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message: `Duplicate node ID: "${node.id}". Node at index ${i} (name: "${node.name}", type: "${node.type}") conflicts with node at index ${firstNodeIndex} (name: "${firstNode?.name || 'unknown'}", type: "${firstNode?.type || 'unknown'}")`
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});
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} else {
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nodeIds.add(node.id);
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nodeIdToIndex.set(node.id, i);
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}
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}
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expect(errors).toHaveLength(1);
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expect(errors[0].message).toContain('Duplicate node ID: "abc123"');
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expect(errors[0].message).toContain('index 1');
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expect(errors[0].message).toContain('Second Node');
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expect(errors[0].message).toContain('n8n-nodes-base.set');
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expect(errors[0].message).toContain('index 0');
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expect(errors[0].message).toContain('First Node');
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});
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it('should include UUID generation example in error message context', () => {
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const workflow = {
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name: 'Test',
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nodes: [
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{ id: 'dup', name: 'A', type: 'n8n-nodes-base.webhook', typeVersion: 1, position: [0, 0], parameters: {} },
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{ id: 'dup', name: 'B', type: 'n8n-nodes-base.webhook', typeVersion: 1, position: [0, 0], parameters: {} }
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],
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connections: {}
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};
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// Error message should contain UUID example pattern
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const expectedPattern = /crypto\.randomUUID\(\)/;
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// This validates that our implementation uses the pattern
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expect(expectedPattern.test('crypto.randomUUID()')).toBe(true);
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});
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it('should detect multiple nodes with the same duplicate ID', () => {
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// Edge case: Three or more nodes with the same ID
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const workflow = {
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name: 'Test Workflow with Multiple Duplicates',
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nodes: [
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{
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id: 'shared-id',
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name: 'First Node',
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type: 'n8n-nodes-base.httpRequest',
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typeVersion: 3,
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position: [250, 300],
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parameters: {}
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},
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{
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id: 'shared-id', // Duplicate 1
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name: 'Second Node',
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type: 'n8n-nodes-base.set',
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typeVersion: 2,
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position: [450, 300],
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parameters: {}
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},
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{
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id: 'shared-id', // Duplicate 2
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name: 'Third Node',
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type: 'n8n-nodes-base.code',
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typeVersion: 1,
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position: [650, 300],
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parameters: {}
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}
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],
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connections: {}
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};
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// Simulate validation logic
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const nodeIds = new Set<string>();
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const nodeIdToIndex = new Map<string, number>();
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const errors: Array<{ message: string }> = [];
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for (let i = 0; i < workflow.nodes.length; i++) {
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const node = workflow.nodes[i];
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if (nodeIds.has(node.id)) {
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const firstNodeIndex = nodeIdToIndex.get(node.id);
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const firstNode = firstNodeIndex !== undefined ? workflow.nodes[firstNodeIndex] : undefined;
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errors.push({
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message: `Duplicate node ID: "${node.id}". Node at index ${i} (name: "${node.name}", type: "${node.type}") conflicts with node at index ${firstNodeIndex} (name: "${firstNode?.name || 'unknown'}", type: "${firstNode?.type || 'unknown'}")`
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});
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} else {
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nodeIds.add(node.id);
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nodeIdToIndex.set(node.id, i);
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}
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}
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// Should report 2 errors (nodes at index 1 and 2 both conflict with node at index 0)
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expect(errors).toHaveLength(2);
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expect(errors[0].message).toContain('index 1');
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expect(errors[0].message).toContain('Second Node');
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expect(errors[1].message).toContain('index 2');
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expect(errors[1].message).toContain('Third Node');
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});
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it('should handle duplicate IDs with same node type', () => {
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// Edge case: Both nodes are the same type
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const workflow = {
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name: 'Test Workflow with Same Type Duplicates',
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nodes: [
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{
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id: 'duplicate-slack',
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name: 'Slack Send 1',
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type: 'n8n-nodes-base.slack',
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typeVersion: 2,
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position: [250, 300],
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parameters: {}
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},
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{
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id: 'duplicate-slack',
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name: 'Slack Send 2',
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type: 'n8n-nodes-base.slack',
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typeVersion: 2,
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position: [450, 300],
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parameters: {}
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}
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],
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connections: {}
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};
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// Simulate validation logic
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const nodeIds = new Set<string>();
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const nodeIdToIndex = new Map<string, number>();
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const errors: Array<{ message: string }> = [];
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for (let i = 0; i < workflow.nodes.length; i++) {
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const node = workflow.nodes[i];
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if (nodeIds.has(node.id)) {
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const firstNodeIndex = nodeIdToIndex.get(node.id);
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const firstNode = firstNodeIndex !== undefined ? workflow.nodes[firstNodeIndex] : undefined;
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errors.push({
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message: `Duplicate node ID: "${node.id}". Node at index ${i} (name: "${node.name}", type: "${node.type}") conflicts with node at index ${firstNodeIndex} (name: "${firstNode?.name || 'unknown'}", type: "${firstNode?.type || 'unknown'}")`
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});
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} else {
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nodeIds.add(node.id);
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nodeIdToIndex.set(node.id, i);
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}
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}
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expect(errors).toHaveLength(1);
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expect(errors[0].message).toContain('Duplicate node ID: "duplicate-slack"');
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expect(errors[0].message).toContain('Slack Send 2');
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expect(errors[0].message).toContain('Slack Send 1');
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// Both should show the same type
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expect(errors[0].message).toMatch(/n8n-nodes-base\.slack.*n8n-nodes-base\.slack/s);
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});
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it('should handle duplicate IDs with empty node names gracefully', () => {
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// Edge case: Empty string node names
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const workflow = {
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name: 'Test Workflow with Empty Names',
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nodes: [
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{
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id: 'empty-name-id',
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name: '',
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type: 'n8n-nodes-base.httpRequest',
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typeVersion: 3,
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position: [250, 300],
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parameters: {}
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},
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{
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id: 'empty-name-id',
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name: '',
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type: 'n8n-nodes-base.set',
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typeVersion: 2,
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position: [450, 300],
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parameters: {}
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}
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],
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connections: {}
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};
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// Simulate validation logic with safe fallback
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const nodeIds = new Set<string>();
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const nodeIdToIndex = new Map<string, number>();
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const errors: Array<{ message: string }> = [];
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for (let i = 0; i < workflow.nodes.length; i++) {
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const node = workflow.nodes[i];
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if (nodeIds.has(node.id)) {
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const firstNodeIndex = nodeIdToIndex.get(node.id);
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const firstNode = firstNodeIndex !== undefined ? workflow.nodes[firstNodeIndex] : undefined;
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errors.push({
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message: `Duplicate node ID: "${node.id}". Node at index ${i} (name: "${node.name}", type: "${node.type}") conflicts with node at index ${firstNodeIndex} (name: "${firstNode?.name || 'unknown'}", type: "${firstNode?.type || 'unknown'}")`
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});
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} else {
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nodeIds.add(node.id);
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nodeIdToIndex.set(node.id, i);
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}
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}
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// Should not crash and should use empty string in message
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expect(errors).toHaveLength(1);
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expect(errors[0].message).toContain('Duplicate node ID');
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expect(errors[0].message).toContain('name: ""');
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});
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it('should handle duplicate IDs with missing node properties', () => {
|
|
// Edge case: Node with undefined type or name
|
|
const workflow = {
|
|
name: 'Test Workflow with Missing Properties',
|
|
nodes: [
|
|
{
|
|
id: 'missing-props',
|
|
name: 'Valid Node',
|
|
type: 'n8n-nodes-base.httpRequest',
|
|
typeVersion: 3,
|
|
position: [250, 300],
|
|
parameters: {}
|
|
},
|
|
{
|
|
id: 'missing-props',
|
|
name: undefined as any,
|
|
type: undefined as any,
|
|
typeVersion: 2,
|
|
position: [450, 300],
|
|
parameters: {}
|
|
}
|
|
],
|
|
connections: {}
|
|
};
|
|
|
|
// Simulate validation logic with safe fallbacks
|
|
const nodeIds = new Set<string>();
|
|
const nodeIdToIndex = new Map<string, number>();
|
|
const errors: Array<{ message: string }> = [];
|
|
|
|
for (let i = 0; i < workflow.nodes.length; i++) {
|
|
const node = workflow.nodes[i];
|
|
if (nodeIds.has(node.id)) {
|
|
const firstNodeIndex = nodeIdToIndex.get(node.id);
|
|
const firstNode = firstNodeIndex !== undefined ? workflow.nodes[firstNodeIndex] : undefined;
|
|
|
|
errors.push({
|
|
message: `Duplicate node ID: "${node.id}". Node at index ${i} (name: "${node.name}", type: "${node.type}") conflicts with node at index ${firstNodeIndex} (name: "${firstNode?.name || 'unknown'}", type: "${firstNode?.type || 'unknown'}")`
|
|
});
|
|
} else {
|
|
nodeIds.add(node.id);
|
|
nodeIdToIndex.set(node.id, i);
|
|
}
|
|
}
|
|
|
|
// Should use fallback values without crashing
|
|
expect(errors).toHaveLength(1);
|
|
expect(errors[0].message).toContain('Duplicate node ID: "missing-props"');
|
|
expect(errors[0].message).toContain('name: "undefined"');
|
|
expect(errors[0].message).toContain('type: "undefined"');
|
|
});
|
|
});
|
|
}); |