Files
n8n-mcp/tests/unit/mcp/tools.test.ts
czlonkowski 96dfbc3a16 feat: Tool consolidation v2.26.0 - reduce tools by 38% (31 → 19)
Major consolidation of MCP tools using mode-based parameters for better
AI agent ergonomics:

Node Tools:
- get_node_documentation → get_node with mode='documentation'
- search_node_properties → get_node with mode='search_properties'
- get_property_dependencies → removed

Validation Tools:
- validate_node_operation + validate_node_minimal → validate_node with mode param

Template Tools:
- list_node_templates → search_templates with searchMode='nodes'
- search_templates_by_metadata → search_templates with searchMode='metadata'
- get_templates_for_task → search_templates with searchMode='task'

Workflow Getters:
- n8n_get_workflow_details/structure/minimal → n8n_get_workflow with mode param

Execution Tools:
- n8n_list/get/delete_execution → n8n_executions with action param

Test updates for all consolidated tools.

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

Co-Authored-By: Claude <noreply@anthropic.com>

Conceived by Romuald Członkowski - https://www.aiadvisors.pl/en
2025-11-25 17:02:19 +01:00

380 lines
14 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('get_node', () => {
const tool = n8nDocumentationToolsFinal.find(t => t.name === 'get_node');
it('should exist', () => {
expect(tool).toBeDefined();
});
it('should have nodeType as required parameter', () => {
expect(tool?.inputSchema.required).toContain('nodeType');
});
it('should mention detail levels in description', () => {
expect(tool?.description).toMatch(/minimal|standard|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('search_templates (consolidated)', () => {
const tool = n8nDocumentationToolsFinal.find(t => t.name === 'search_templates');
it('should exist', () => {
expect(tool).toBeDefined();
});
it('should have searchMode parameter with correct enum values', () => {
const searchModeParam = tool?.inputSchema.properties?.searchMode;
expect(searchModeParam).toBeDefined();
expect(searchModeParam.enum).toEqual(['keyword', 'by_nodes', 'by_task', 'by_metadata']);
expect(searchModeParam.default).toBe('keyword');
});
it('should have task parameter for by_task searchMode', () => {
const taskParam = tool?.inputSchema.properties?.task;
expect(taskParam).toBeDefined();
const expectedTasks = [
'ai_automation',
'data_sync',
'webhook_processing',
'email_automation',
'slack_integration',
'data_transformation',
'file_processing',
'scheduling',
'api_integration',
'database_operations'
];
expect(taskParam.enum).toEqual(expectedTasks);
});
it('should have nodeTypes parameter for by_nodes searchMode', () => {
const nodeTypesParam = tool?.inputSchema.properties?.nodeTypes;
expect(nodeTypesParam).toBeDefined();
expect(nodeTypesParam.type).toBe('array');
expect(nodeTypesParam.items.type).toBe('string');
});
});
});
describe('Tool Description Quality', () => {
it('should have concise descriptions that fit within reasonable limits', () => {
n8nDocumentationToolsFinal.forEach(tool => {
// Consolidated tools (v2.26.0) may have longer descriptions due to multiple modes
// Allow up to 500 chars for tools with mode-based functionality
expect(tool.description.length).toBeLessThan(500);
});
});
it('should include examples or key information in descriptions', () => {
const toolsWithExamples = [
'get_node',
'search_nodes'
];
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:|mode/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', () => {
// Updated for v2.26.0 consolidated tools
const categories = {
discovery: ['search_nodes'],
configuration: ['get_node'], // get_node now includes docs mode
validation: ['validate_node', 'validate_workflow'], // consolidated validate_node
templates: ['search_templates', 'get_template'], // search_templates now handles all search modes
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 optional parameters only', () => {
// Tools where all parameters are optional
const toolsWithOptionalParams = ['tools_documentation'];
toolsWithOptionalParams.forEach(toolName => {
const tool = n8nDocumentationToolsFinal.find(t => t.name === toolName);
expect(tool).toBeDefined();
// These tools have properties but no required array or empty required array
expect(tool?.inputSchema.required === undefined || tool?.inputSchema.required?.length === 0).toBe(true);
});
});
it('should have array parameters defined correctly', () => {
// search_templates now handles nodeTypes for by_nodes mode
const tool = n8nDocumentationToolsFinal.find(t => t.name === 'search_templates');
const arrayParam = tool?.inputSchema.properties?.nodeTypes;
expect(arrayParam?.type).toBe('array');
expect(arrayParam?.items).toBeDefined();
expect(arrayParam?.items.type).toBe('string');
});
});
describe('Consolidated Template Tools (v2.26.0)', () => {
describe('get_template', () => {
const tool = n8nDocumentationToolsFinal.find(t => t.name === 'get_template');
it('should exist and support mode parameter', () => {
expect(tool).toBeDefined();
expect(tool?.description).toContain('mode');
});
it('should have mode parameter with correct values', () => {
expect(tool?.inputSchema.properties).toHaveProperty('mode');
const modeParam = tool?.inputSchema.properties.mode;
expect(modeParam.enum).toEqual(['nodes_only', 'structure', 'full']);
expect(modeParam.default).toBe('full');
});
it('should require templateId parameter', () => {
expect(tool?.inputSchema.required).toContain('templateId');
});
});
describe('search_templates (consolidated with searchMode)', () => {
const tool = n8nDocumentationToolsFinal.find(t => t.name === 'search_templates');
it('should exist with searchMode parameter', () => {
expect(tool).toBeDefined();
expect(tool?.inputSchema.properties).toHaveProperty('searchMode');
});
it('should support metadata filtering via by_metadata searchMode', () => {
// These properties are for by_metadata searchMode
const props = tool?.inputSchema.properties;
expect(props).toHaveProperty('category');
expect(props).toHaveProperty('complexity');
expect(props?.complexity?.enum).toEqual(['simple', 'medium', 'complex']);
});
it('should have pagination parameters', () => {
const limitProp = tool?.inputSchema.properties?.limit;
const offsetProp = tool?.inputSchema.properties?.offset;
expect(limitProp).toBeDefined();
expect(limitProp.type).toBe('number');
expect(limitProp.default).toBe(20);
expect(limitProp.maximum).toBe(100);
expect(limitProp.minimum).toBe(1);
expect(offsetProp).toBeDefined();
expect(offsetProp.type).toBe('number');
expect(offsetProp.default).toBe(0);
expect(offsetProp.minimum).toBe(0);
});
it('should include all search mode-specific properties', () => {
const properties = Object.keys(tool?.inputSchema.properties || {});
// Consolidated tool includes properties from all former tools
const expectedProperties = [
'searchMode', // New mode selector
'query', // For keyword search
'nodeTypes', // For by_nodes search (formerly list_node_templates)
'task', // For by_task search (formerly get_templates_for_task)
'category', // For by_metadata search
'complexity',
'limit',
'offset'
];
expectedProperties.forEach(prop => {
expect(properties).toContain(prop);
});
});
});
});
});