Files
n8n-mcp/tests/unit/mcp/tools.test.ts
czlonkowski d870d0ab71 test: add comprehensive unit tests for database, parsers, loaders, and MCP tools
- Database layer tests (32 tests):
  - node-repository.ts: 100% coverage
  - template-repository.ts: 80.31% coverage
  - database-adapter.ts: interface compliance tests

- Parser tests (99 tests):
  - node-parser.ts: 93.10% coverage
  - property-extractor.ts: 95.18% coverage
  - simple-parser.ts: 91.26% coverage
  - Fixed parser bugs for version extraction

- Loader tests (22 tests):
  - node-loader.ts: comprehensive mocking tests

- MCP tools tests (85 tests):
  - tools.ts: 100% coverage
  - tools-documentation.ts: 100% coverage
  - docs-mapper.ts: 100% coverage

Total: 943 tests passing across 32 test files
Significant progress from 2.45% to ~30% overall coverage

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-07-28 20:16:38 +02:00

320 lines
11 KiB
TypeScript

import { describe, it, expect } from 'vitest';
import { n8nDocumentationToolsFinal } from '@/mcp/tools';
import { z } from 'zod';
describe('n8nDocumentationToolsFinal', () => {
describe('Tool Structure Validation', () => {
it('should have all required properties for each tool', () => {
n8nDocumentationToolsFinal.forEach(tool => {
// Check required properties exist
expect(tool).toHaveProperty('name');
expect(tool).toHaveProperty('description');
expect(tool).toHaveProperty('inputSchema');
// Check property types
expect(typeof tool.name).toBe('string');
expect(typeof tool.description).toBe('string');
expect(tool.inputSchema).toBeTypeOf('object');
// Name should be non-empty
expect(tool.name.length).toBeGreaterThan(0);
// Description should be meaningful
expect(tool.description.length).toBeGreaterThan(10);
});
});
it('should have unique tool names', () => {
const names = n8nDocumentationToolsFinal.map(tool => tool.name);
const uniqueNames = new Set(names);
expect(names.length).toBe(uniqueNames.size);
});
it('should have valid JSON Schema for all inputSchemas', () => {
// Define a minimal JSON Schema validator using Zod
const jsonSchemaValidator = z.object({
type: z.literal('object'),
properties: z.record(z.any()).optional(),
required: z.array(z.string()).optional(),
});
n8nDocumentationToolsFinal.forEach(tool => {
expect(() => {
jsonSchemaValidator.parse(tool.inputSchema);
}).not.toThrow();
});
});
});
describe('Individual Tool Validation', () => {
describe('tools_documentation', () => {
const tool = n8nDocumentationToolsFinal.find(t => t.name === 'tools_documentation');
it('should exist', () => {
expect(tool).toBeDefined();
});
it('should have correct schema', () => {
expect(tool?.inputSchema).toMatchObject({
type: 'object',
properties: {
topic: {
type: 'string',
description: expect.any(String)
},
depth: {
type: 'string',
enum: ['essentials', 'full'],
description: expect.any(String),
default: 'essentials'
}
}
});
});
it('should have helpful description', () => {
expect(tool?.description).toContain('documentation');
expect(tool?.description).toContain('MCP tools');
});
});
describe('list_nodes', () => {
const tool = n8nDocumentationToolsFinal.find(t => t.name === 'list_nodes');
it('should exist', () => {
expect(tool).toBeDefined();
});
it('should have correct schema properties', () => {
const properties = tool?.inputSchema.properties;
expect(properties).toHaveProperty('package');
expect(properties).toHaveProperty('category');
expect(properties).toHaveProperty('developmentStyle');
expect(properties).toHaveProperty('isAITool');
expect(properties).toHaveProperty('limit');
});
it('should have correct defaults', () => {
expect(tool?.inputSchema.properties.limit.default).toBe(50);
});
it('should have proper enum values', () => {
expect(tool?.inputSchema.properties.developmentStyle.enum).toEqual(['declarative', 'programmatic']);
});
});
describe('get_node_info', () => {
const tool = n8nDocumentationToolsFinal.find(t => t.name === 'get_node_info');
it('should exist', () => {
expect(tool).toBeDefined();
});
it('should have nodeType as required parameter', () => {
expect(tool?.inputSchema.required).toContain('nodeType');
});
it('should mention performance implications in description', () => {
expect(tool?.description).toMatch(/100KB\+|large|full/i);
});
});
describe('search_nodes', () => {
const tool = n8nDocumentationToolsFinal.find(t => t.name === 'search_nodes');
it('should exist', () => {
expect(tool).toBeDefined();
});
it('should have query as required parameter', () => {
expect(tool?.inputSchema.required).toContain('query');
});
it('should have mode enum with correct values', () => {
expect(tool?.inputSchema.properties.mode.enum).toEqual(['OR', 'AND', 'FUZZY']);
expect(tool?.inputSchema.properties.mode.default).toBe('OR');
});
it('should have limit with default value', () => {
expect(tool?.inputSchema.properties.limit.default).toBe(20);
});
});
describe('validate_workflow', () => {
const tool = n8nDocumentationToolsFinal.find(t => t.name === 'validate_workflow');
it('should exist', () => {
expect(tool).toBeDefined();
});
it('should have workflow as required parameter', () => {
expect(tool?.inputSchema.required).toContain('workflow');
});
it('should have options with correct validation settings', () => {
const options = tool?.inputSchema.properties.options.properties;
expect(options).toHaveProperty('validateNodes');
expect(options).toHaveProperty('validateConnections');
expect(options).toHaveProperty('validateExpressions');
expect(options).toHaveProperty('profile');
});
it('should have correct profile enum values', () => {
const profile = tool?.inputSchema.properties.options.properties.profile;
expect(profile.enum).toEqual(['minimal', 'runtime', 'ai-friendly', 'strict']);
expect(profile.default).toBe('runtime');
});
});
describe('get_templates_for_task', () => {
const tool = n8nDocumentationToolsFinal.find(t => t.name === 'get_templates_for_task');
it('should exist', () => {
expect(tool).toBeDefined();
});
it('should have task as required parameter', () => {
expect(tool?.inputSchema.required).toContain('task');
});
it('should have correct task enum values', () => {
const expectedTasks = [
'ai_automation',
'data_sync',
'webhook_processing',
'email_automation',
'slack_integration',
'data_transformation',
'file_processing',
'scheduling',
'api_integration',
'database_operations'
];
expect(tool?.inputSchema.properties.task.enum).toEqual(expectedTasks);
});
});
});
describe('Tool Description Quality', () => {
it('should have concise descriptions that fit in one line', () => {
n8nDocumentationToolsFinal.forEach(tool => {
// Descriptions should be informative but not overly long
expect(tool.description.length).toBeLessThan(300);
});
});
it('should include examples or key information in descriptions', () => {
const toolsWithExamples = [
'list_nodes',
'get_node_info',
'search_nodes',
'get_node_essentials',
'get_node_documentation'
];
toolsWithExamples.forEach(toolName => {
const tool = n8nDocumentationToolsFinal.find(t => t.name === toolName);
// Should include either example usage, format information, or "nodes-base"
expect(tool?.description).toMatch(/example|Example|format|Format|nodes-base|Common:/i);
});
});
});
describe('Schema Consistency', () => {
it('should use consistent parameter naming', () => {
const toolsWithNodeType = n8nDocumentationToolsFinal.filter(tool =>
tool.inputSchema.properties?.nodeType
);
toolsWithNodeType.forEach(tool => {
const nodeTypeParam = tool.inputSchema.properties.nodeType;
expect(nodeTypeParam.type).toBe('string');
// Should mention the prefix requirement
expect(nodeTypeParam.description).toMatch(/nodes-base|prefix/i);
});
});
it('should have consistent limit parameter defaults', () => {
const toolsWithLimit = n8nDocumentationToolsFinal.filter(tool =>
tool.inputSchema.properties?.limit
);
toolsWithLimit.forEach(tool => {
const limitParam = tool.inputSchema.properties.limit;
expect(limitParam.type).toBe('number');
expect(limitParam.default).toBeDefined();
expect(limitParam.default).toBeGreaterThan(0);
});
});
});
describe('Tool Categories Coverage', () => {
it('should have tools for all major categories', () => {
const categories = {
discovery: ['list_nodes', 'search_nodes', 'list_ai_tools'],
configuration: ['get_node_info', 'get_node_essentials', 'get_node_documentation'],
validation: ['validate_node_operation', 'validate_workflow', 'validate_node_minimal'],
templates: ['list_tasks', 'get_node_for_task', 'search_templates'],
documentation: ['tools_documentation']
};
Object.entries(categories).forEach(([category, expectedTools]) => {
expectedTools.forEach(toolName => {
const tool = n8nDocumentationToolsFinal.find(t => t.name === toolName);
expect(tool).toBeDefined();
});
});
});
});
describe('Parameter Validation', () => {
it('should have proper type definitions for all parameters', () => {
const validTypes = ['string', 'number', 'boolean', 'object', 'array'];
n8nDocumentationToolsFinal.forEach(tool => {
if (tool.inputSchema.properties) {
Object.entries(tool.inputSchema.properties).forEach(([paramName, param]) => {
expect(validTypes).toContain(param.type);
expect(param.description).toBeDefined();
});
}
});
});
it('should mark required parameters correctly', () => {
const toolsWithRequired = n8nDocumentationToolsFinal.filter(tool =>
tool.inputSchema.required && tool.inputSchema.required.length > 0
);
toolsWithRequired.forEach(tool => {
tool.inputSchema.required.forEach(requiredParam => {
expect(tool.inputSchema.properties).toHaveProperty(requiredParam);
});
});
});
});
describe('Edge Cases', () => {
it('should handle tools with no parameters', () => {
const toolsWithNoParams = ['list_ai_tools', 'get_database_statistics'];
toolsWithNoParams.forEach(toolName => {
const tool = n8nDocumentationToolsFinal.find(t => t.name === toolName);
expect(tool).toBeDefined();
expect(Object.keys(tool?.inputSchema.properties || {}).length).toBe(0);
});
});
it('should have array parameters defined correctly', () => {
const toolsWithArrays = ['list_node_templates'];
toolsWithArrays.forEach(toolName => {
const tool = n8nDocumentationToolsFinal.find(t => t.name === toolName);
const arrayParam = tool?.inputSchema.properties.nodeTypes;
expect(arrayParam?.type).toBe('array');
expect(arrayParam?.items).toBeDefined();
expect(arrayParam?.items.type).toBe('string');
});
});
});
});