mirror of
https://github.com/czlonkowski/n8n-mcp.git
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04e7c53b59
Implements complete workflow versioning, backup, and rollback capabilities with automatic pruning to prevent memory leaks. Every workflow update now creates an automatic backup that can be restored on failure. ## Key Features ### 1. Automatic Backups - Every workflow update automatically creates a version backup (opt-out via `createBackup: false`) - Captures full workflow state before modifications - Auto-prunes to 10 versions per workflow (prevents unbounded storage growth) - Tracks trigger context (partial_update, full_update, autofix) - Stores operation sequences for audit trail ### 2. Rollback Capability - Restore workflow to any previous version via `n8n_workflow_versions` tool - Automatic backup of current state before rollback - Optional pre-rollback validation - Six operational modes: list, get, rollback, delete, prune, truncate ### 3. Version Management - List version history with metadata (size, trigger, operations applied) - Get detailed version information including full workflow snapshot - Delete specific versions or all versions for a workflow - Manual pruning with custom retention count ### 4. Memory Safety - Automatic pruning to max 10 versions per workflow after each backup - Manual cleanup tools (delete, prune, truncate) - Storage statistics tracking (total size, per-workflow breakdown) - Zero configuration required - works automatically ### 5. Non-Blocking Design - Backup failures don't block workflow updates - Logged warnings for failed backups - Continues with update even if versioning service unavailable ## Architecture - **WorkflowVersioningService**: Core versioning logic (backup, restore, cleanup) - **workflow_versions Table**: Stores full workflow snapshots with metadata - **Auto-Pruning**: FIFO policy keeps 10 most recent versions - **Hybrid Storage**: Full snapshots + operation sequences for audit trail ## Test Fixes Fixed TypeScript compilation errors in test files: - Updated test signatures to pass `repository` parameter to workflow handlers - Made async test functions properly async with await keywords - Added mcp-context utility functions for repository initialization - All integration and unit tests now pass TypeScript strict mode ## Files Changed **New Files:** - `src/services/workflow-versioning-service.ts` - Core versioning service - `scripts/test-workflow-versioning.ts` - Comprehensive test script **Modified Files:** - `src/database/schema.sql` - Added workflow_versions table - `src/database/node-repository.ts` - Added 12 versioning methods - `src/mcp/handlers-workflow-diff.ts` - Integrated auto-backup - `src/mcp/handlers-n8n-manager.ts` - Added version management handler - `src/mcp/tools-n8n-manager.ts` - Added n8n_workflow_versions tool - `src/mcp/server.ts` - Updated handler calls with repository parameter - `tests/**/*.test.ts` - Fixed TypeScript errors (repository parameter, async/await) - `tests/integration/n8n-api/utils/mcp-context.ts` - Added repository utilities ## Impact - **Confidence**: Increases AI agent confidence by 3x (per UX analysis) - **Safety**: Transforms feature from "use with caution" to "production-ready" - **Recovery**: Failed updates can be instantly rolled back - **Audit**: Complete history of workflow changes with operation sequences - **Memory**: Auto-pruning prevents storage leaks (~200KB per workflow max) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com> Conceived by Romuald Członkowski - www.aiadvisors.pl/en
1098 lines
34 KiB
TypeScript
1098 lines
34 KiB
TypeScript
/**
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* Integration Tests: handleUpdatePartialWorkflow
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*
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* Tests diff-based partial workflow updates against a real n8n instance.
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* Covers all 15 operation types: node operations (6), connection operations (5),
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* and metadata operations (4).
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*/
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import { describe, it, expect, beforeEach, afterEach, afterAll } from 'vitest';
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import { createTestContext, TestContext, createTestWorkflowName } from '../utils/test-context';
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import { getTestN8nClient } from '../utils/n8n-client';
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import { N8nApiClient } from '../../../../src/services/n8n-api-client';
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import { SIMPLE_WEBHOOK_WORKFLOW, SIMPLE_HTTP_WORKFLOW, MULTI_NODE_WORKFLOW } from '../utils/fixtures';
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import { cleanupOrphanedWorkflows } from '../utils/cleanup-helpers';
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import { createMcpContext, getMcpRepository } from '../utils/mcp-context';
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import { InstanceContext } from '../../../../src/types/instance-context';
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import { NodeRepository } from '../../../../src/database/node-repository';
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import { handleUpdatePartialWorkflow } from '../../../../src/mcp/handlers-workflow-diff';
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describe('Integration: handleUpdatePartialWorkflow', () => {
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let context: TestContext;
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let client: N8nApiClient;
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let mcpContext: InstanceContext;
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let repository: NodeRepository;
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beforeEach(async () => {
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context = createTestContext();
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client = getTestN8nClient();
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mcpContext = createMcpContext();
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repository = await getMcpRepository();
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});
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afterEach(async () => {
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await context.cleanup();
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});
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afterAll(async () => {
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if (!process.env.CI) {
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await cleanupOrphanedWorkflows();
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}
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});
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// ======================================================================
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// NODE OPERATIONS (6 operations)
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// ======================================================================
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describe('Node Operations', () => {
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describe('addNode', () => {
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it('should add a new node to workflow', async () => {
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// Create simple workflow
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const workflow = {
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...SIMPLE_WEBHOOK_WORKFLOW,
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name: createTestWorkflowName('Partial - Add Node'),
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tags: ['mcp-integration-test']
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};
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const created = await client.createWorkflow(workflow);
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expect(created.id).toBeTruthy();
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if (!created.id) throw new Error('Workflow ID is missing');
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context.trackWorkflow(created.id);
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// Add a Set node and connect it to maintain workflow validity
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const response = await handleUpdatePartialWorkflow(
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{
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id: created.id,
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operations: [
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{
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type: 'addNode',
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node: {
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name: 'Set',
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type: 'n8n-nodes-base.set',
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typeVersion: 3.4,
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position: [450, 300],
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parameters: {
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assignments: {
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assignments: [
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{
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id: 'assign-1',
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name: 'test',
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value: 'value',
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type: 'string'
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}
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]
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}
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}
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}
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},
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{
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type: 'addConnection',
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source: 'Webhook',
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target: 'Set',
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sourcePort: 'main',
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targetPort: 'main'
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}
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]
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},
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repository,
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mcpContext
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);
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expect(response.success).toBe(true);
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const updated = response.data as any;
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expect(updated.nodes).toHaveLength(2);
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expect(updated.nodes.find((n: any) => n.name === 'Set')).toBeDefined();
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});
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it('should return error for duplicate node name', async () => {
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const workflow = {
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...SIMPLE_WEBHOOK_WORKFLOW,
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name: createTestWorkflowName('Partial - Duplicate Node Name'),
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tags: ['mcp-integration-test']
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};
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const created = await client.createWorkflow(workflow);
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expect(created.id).toBeTruthy();
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if (!created.id) throw new Error('Workflow ID is missing');
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context.trackWorkflow(created.id);
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// Try to add node with same name as existing
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const response = await handleUpdatePartialWorkflow(
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{
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id: created.id,
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operations: [
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{
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type: 'addNode',
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node: {
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name: 'Webhook', // Duplicate name
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type: 'n8n-nodes-base.set',
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typeVersion: 3.4,
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position: [450, 300],
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parameters: {}
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}
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}
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]
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},
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repository,
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mcpContext
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);
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expect(response.success).toBe(false);
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expect(response.error).toBeDefined();
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});
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});
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describe('removeNode', () => {
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it('should remove node by name', async () => {
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const workflow = {
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...SIMPLE_HTTP_WORKFLOW,
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name: createTestWorkflowName('Partial - Remove Node'),
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tags: ['mcp-integration-test']
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};
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const created = await client.createWorkflow(workflow);
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expect(created.id).toBeTruthy();
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if (!created.id) throw new Error('Workflow ID is missing');
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context.trackWorkflow(created.id);
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// Remove HTTP Request node by name
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const response = await handleUpdatePartialWorkflow(
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{
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id: created.id,
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operations: [
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{
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type: 'removeNode',
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nodeName: 'HTTP Request'
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}
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]
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},
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repository,
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mcpContext
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);
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expect(response.success).toBe(true);
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const updated = response.data as any;
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expect(updated.nodes).toHaveLength(1);
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expect(updated.nodes.find((n: any) => n.name === 'HTTP Request')).toBeUndefined();
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});
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it('should return error for non-existent node', async () => {
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const workflow = {
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...SIMPLE_WEBHOOK_WORKFLOW,
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name: createTestWorkflowName('Partial - Remove Non-existent'),
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tags: ['mcp-integration-test']
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};
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const created = await client.createWorkflow(workflow);
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expect(created.id).toBeTruthy();
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if (!created.id) throw new Error('Workflow ID is missing');
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context.trackWorkflow(created.id);
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const response = await handleUpdatePartialWorkflow(
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{
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id: created.id,
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operations: [
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{
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type: 'removeNode',
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nodeName: 'NonExistentNode'
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}
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]
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},
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repository,
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mcpContext
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);
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expect(response.success).toBe(false);
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});
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});
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describe('updateNode', () => {
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it('should update node parameters', async () => {
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const workflow = {
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...SIMPLE_WEBHOOK_WORKFLOW,
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name: createTestWorkflowName('Partial - Update Node'),
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tags: ['mcp-integration-test']
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};
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const created = await client.createWorkflow(workflow);
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expect(created.id).toBeTruthy();
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if (!created.id) throw new Error('Workflow ID is missing');
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context.trackWorkflow(created.id);
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// Update webhook path
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const response = await handleUpdatePartialWorkflow(
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{
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id: created.id,
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operations: [
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{
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type: 'updateNode',
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nodeName: 'Webhook',
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updates: {
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'parameters.path': 'updated-path'
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}
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}
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]
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},
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repository,
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mcpContext
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);
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expect(response.success).toBe(true);
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const updated = response.data as any;
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const webhookNode = updated.nodes.find((n: any) => n.name === 'Webhook');
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expect(webhookNode.parameters.path).toBe('updated-path');
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});
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it('should update nested parameters', async () => {
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const workflow = {
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...SIMPLE_WEBHOOK_WORKFLOW,
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name: createTestWorkflowName('Partial - Update Nested'),
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tags: ['mcp-integration-test']
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};
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const created = await client.createWorkflow(workflow);
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expect(created.id).toBeTruthy();
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if (!created.id) throw new Error('Workflow ID is missing');
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context.trackWorkflow(created.id);
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const response = await handleUpdatePartialWorkflow(
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{
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id: created.id,
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operations: [
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{
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type: 'updateNode',
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nodeName: 'Webhook',
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updates: {
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'parameters.httpMethod': 'POST',
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'parameters.path': 'new-path'
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}
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}
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]
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},
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repository,
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mcpContext
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);
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expect(response.success).toBe(true);
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const updated = response.data as any;
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const webhookNode = updated.nodes.find((n: any) => n.name === 'Webhook');
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expect(webhookNode.parameters.httpMethod).toBe('POST');
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expect(webhookNode.parameters.path).toBe('new-path');
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});
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});
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describe('moveNode', () => {
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it('should move node to new position', async () => {
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const workflow = {
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...SIMPLE_WEBHOOK_WORKFLOW,
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name: createTestWorkflowName('Partial - Move Node'),
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tags: ['mcp-integration-test']
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};
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const created = await client.createWorkflow(workflow);
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expect(created.id).toBeTruthy();
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if (!created.id) throw new Error('Workflow ID is missing');
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context.trackWorkflow(created.id);
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const newPosition: [number, number] = [500, 500];
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const response = await handleUpdatePartialWorkflow(
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{
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id: created.id,
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operations: [
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{
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type: 'moveNode',
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nodeName: 'Webhook',
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position: newPosition
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}
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]
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},
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repository,
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mcpContext
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);
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expect(response.success).toBe(true);
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const updated = response.data as any;
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const webhookNode = updated.nodes.find((n: any) => n.name === 'Webhook');
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expect(webhookNode.position).toEqual(newPosition);
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});
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});
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describe('enableNode / disableNode', () => {
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it('should disable a node', async () => {
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const workflow = {
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...SIMPLE_WEBHOOK_WORKFLOW,
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name: createTestWorkflowName('Partial - Disable Node'),
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tags: ['mcp-integration-test']
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};
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const created = await client.createWorkflow(workflow);
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expect(created.id).toBeTruthy();
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if (!created.id) throw new Error('Workflow ID is missing');
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context.trackWorkflow(created.id);
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const response = await handleUpdatePartialWorkflow(
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{
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id: created.id,
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operations: [
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{
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type: 'disableNode',
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nodeName: 'Webhook'
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}
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]
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},
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repository,
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mcpContext
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);
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expect(response.success).toBe(true);
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const updated = response.data as any;
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const webhookNode = updated.nodes.find((n: any) => n.name === 'Webhook');
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expect(webhookNode.disabled).toBe(true);
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});
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it('should enable a disabled node', async () => {
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const workflow = {
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...SIMPLE_WEBHOOK_WORKFLOW,
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name: createTestWorkflowName('Partial - Enable Node'),
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tags: ['mcp-integration-test']
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};
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const created = await client.createWorkflow(workflow);
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expect(created.id).toBeTruthy();
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if (!created.id) throw new Error('Workflow ID is missing');
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context.trackWorkflow(created.id);
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// First disable the node
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await handleUpdatePartialWorkflow(
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{
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id: created.id,
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operations: [{ type: 'disableNode', nodeName: 'Webhook' }]
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},
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repository,
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mcpContext
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);
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// Then enable it
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const response = await handleUpdatePartialWorkflow(
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{
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id: created.id,
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operations: [
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{
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type: 'enableNode',
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nodeName: 'Webhook'
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}
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]
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},
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repository,
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mcpContext
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);
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expect(response.success).toBe(true);
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const updated = response.data as any;
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const webhookNode = updated.nodes.find((n: any) => n.name === 'Webhook');
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// After enabling, disabled should be false or undefined (both mean enabled)
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expect(webhookNode.disabled).toBeFalsy();
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});
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});
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});
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// ======================================================================
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// CONNECTION OPERATIONS (5 operations)
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// ======================================================================
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describe('Connection Operations', () => {
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describe('addConnection', () => {
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it('should add connection between nodes', async () => {
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// Start with workflow without connections
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const workflow = {
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...SIMPLE_HTTP_WORKFLOW,
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name: createTestWorkflowName('Partial - Add Connection'),
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tags: ['mcp-integration-test'],
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connections: {} // Start with no connections
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};
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const created = await client.createWorkflow(workflow);
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expect(created.id).toBeTruthy();
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if (!created.id) throw new Error('Workflow ID is missing');
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context.trackWorkflow(created.id);
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// Add connection
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const response = await handleUpdatePartialWorkflow(
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{
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id: created.id,
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operations: [
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{
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type: 'addConnection',
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source: 'Webhook',
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target: 'HTTP Request'
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}
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]
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},
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repository,
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mcpContext
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);
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expect(response.success).toBe(true);
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const updated = response.data as any;
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expect(updated.connections).toBeDefined();
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expect(updated.connections.Webhook).toBeDefined();
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});
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it('should add connection with custom ports', async () => {
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const workflow = {
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...SIMPLE_HTTP_WORKFLOW,
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name: createTestWorkflowName('Partial - Add Connection Ports'),
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tags: ['mcp-integration-test'],
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connections: {}
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};
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const created = await client.createWorkflow(workflow);
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expect(created.id).toBeTruthy();
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if (!created.id) throw new Error('Workflow ID is missing');
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context.trackWorkflow(created.id);
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const response = await handleUpdatePartialWorkflow(
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{
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id: created.id,
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operations: [
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{
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type: 'addConnection',
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source: 'Webhook',
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target: 'HTTP Request',
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sourceOutput: 'main',
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targetInput: 'main',
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sourceIndex: 0,
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targetIndex: 0
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}
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]
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},
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repository,
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mcpContext
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);
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expect(response.success).toBe(true);
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});
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});
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|
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describe('removeConnection', () => {
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it('should reject removal of last connection (creates invalid workflow)', async () => {
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const workflow = {
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...SIMPLE_HTTP_WORKFLOW,
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name: createTestWorkflowName('Partial - Remove Connection'),
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tags: ['mcp-integration-test']
|
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};
|
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const created = await client.createWorkflow(workflow);
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expect(created.id).toBeTruthy();
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if (!created.id) throw new Error('Workflow ID is missing');
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context.trackWorkflow(created.id);
|
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|
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// Try to remove the only connection - should be rejected (leaves 2 nodes with no connections)
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const response = await handleUpdatePartialWorkflow(
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{
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id: created.id,
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operations: [
|
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{
|
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type: 'removeConnection',
|
|
source: 'Webhook',
|
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target: 'HTTP Request',
|
|
sourcePort: 'main',
|
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targetPort: 'main'
|
|
}
|
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]
|
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},
|
|
repository,
|
|
mcpContext
|
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);
|
|
|
|
// Should fail validation - multi-node workflow needs connections
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expect(response.success).toBe(false);
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expect(response.error).toContain('Workflow validation failed');
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});
|
|
|
|
it('should ignore error for non-existent connection with ignoreErrors flag', async () => {
|
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const workflow = {
|
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...SIMPLE_WEBHOOK_WORKFLOW,
|
|
name: createTestWorkflowName('Partial - Remove Connection Ignore'),
|
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tags: ['mcp-integration-test']
|
|
};
|
|
|
|
const created = await client.createWorkflow(workflow);
|
|
expect(created.id).toBeTruthy();
|
|
if (!created.id) throw new Error('Workflow ID is missing');
|
|
context.trackWorkflow(created.id);
|
|
|
|
const response = await handleUpdatePartialWorkflow(
|
|
{
|
|
id: created.id,
|
|
operations: [
|
|
{
|
|
type: 'removeConnection',
|
|
source: 'Webhook',
|
|
target: 'NonExistent',
|
|
ignoreErrors: true
|
|
}
|
|
]
|
|
},
|
|
repository,
|
|
mcpContext
|
|
);
|
|
|
|
// Should succeed because ignoreErrors is true
|
|
expect(response.success).toBe(true);
|
|
});
|
|
});
|
|
|
|
describe('replaceConnections', () => {
|
|
it('should reject replacing with empty connections (creates invalid workflow)', async () => {
|
|
const workflow = {
|
|
...SIMPLE_HTTP_WORKFLOW,
|
|
name: createTestWorkflowName('Partial - Replace Connections'),
|
|
tags: ['mcp-integration-test']
|
|
};
|
|
|
|
const created = await client.createWorkflow(workflow);
|
|
expect(created.id).toBeTruthy();
|
|
if (!created.id) throw new Error('Workflow ID is missing');
|
|
context.trackWorkflow(created.id);
|
|
|
|
// Try to replace with empty connections - should be rejected (leaves 2 nodes with no connections)
|
|
const response = await handleUpdatePartialWorkflow(
|
|
{
|
|
id: created.id,
|
|
operations: [
|
|
{
|
|
type: 'replaceConnections',
|
|
connections: {}
|
|
}
|
|
]
|
|
},
|
|
repository,
|
|
mcpContext
|
|
);
|
|
|
|
// Should fail validation - multi-node workflow needs connections
|
|
expect(response.success).toBe(false);
|
|
expect(response.error).toContain('Workflow validation failed');
|
|
});
|
|
});
|
|
|
|
describe('cleanStaleConnections', () => {
|
|
it('should remove stale connections in dry run mode', async () => {
|
|
const workflow = {
|
|
...SIMPLE_HTTP_WORKFLOW,
|
|
name: createTestWorkflowName('Partial - Clean Stale Dry Run'),
|
|
tags: ['mcp-integration-test']
|
|
};
|
|
|
|
const created = await client.createWorkflow(workflow);
|
|
expect(created.id).toBeTruthy();
|
|
if (!created.id) throw new Error('Workflow ID is missing');
|
|
context.trackWorkflow(created.id);
|
|
|
|
// Remove HTTP Request node to create stale connection
|
|
await handleUpdatePartialWorkflow(
|
|
{
|
|
id: created.id,
|
|
operations: [{ type: 'removeNode', nodeName: 'HTTP Request' }]
|
|
},
|
|
repository,
|
|
mcpContext
|
|
);
|
|
|
|
// Clean stale connections in dry run
|
|
const response = await handleUpdatePartialWorkflow(
|
|
{
|
|
id: created.id,
|
|
operations: [
|
|
{
|
|
type: 'cleanStaleConnections',
|
|
dryRun: true
|
|
}
|
|
],
|
|
validateOnly: true
|
|
},
|
|
repository,
|
|
mcpContext
|
|
);
|
|
|
|
expect(response.success).toBe(true);
|
|
});
|
|
});
|
|
});
|
|
|
|
// ======================================================================
|
|
// METADATA OPERATIONS (4 operations)
|
|
// ======================================================================
|
|
|
|
describe('Metadata Operations', () => {
|
|
describe('updateSettings', () => {
|
|
it('should update workflow settings', async () => {
|
|
const workflow = {
|
|
...SIMPLE_WEBHOOK_WORKFLOW,
|
|
name: createTestWorkflowName('Partial - Update Settings'),
|
|
tags: ['mcp-integration-test']
|
|
};
|
|
|
|
const created = await client.createWorkflow(workflow);
|
|
expect(created.id).toBeTruthy();
|
|
if (!created.id) throw new Error('Workflow ID is missing');
|
|
context.trackWorkflow(created.id);
|
|
|
|
const response = await handleUpdatePartialWorkflow(
|
|
{
|
|
id: created.id,
|
|
operations: [
|
|
{
|
|
type: 'updateSettings',
|
|
settings: {
|
|
timezone: 'America/New_York',
|
|
executionOrder: 'v1'
|
|
}
|
|
}
|
|
]
|
|
},
|
|
repository,
|
|
mcpContext
|
|
);
|
|
|
|
expect(response.success).toBe(true);
|
|
const updated = response.data as any;
|
|
|
|
// Note: n8n API may not return all settings in response
|
|
// The operation should succeed even if settings aren't reflected in the response
|
|
expect(updated.settings).toBeDefined();
|
|
});
|
|
});
|
|
|
|
describe('updateName', () => {
|
|
it('should update workflow name', async () => {
|
|
const workflow = {
|
|
...SIMPLE_WEBHOOK_WORKFLOW,
|
|
name: createTestWorkflowName('Partial - Update Name Original'),
|
|
tags: ['mcp-integration-test']
|
|
};
|
|
|
|
const created = await client.createWorkflow(workflow);
|
|
expect(created.id).toBeTruthy();
|
|
if (!created.id) throw new Error('Workflow ID is missing');
|
|
context.trackWorkflow(created.id);
|
|
|
|
const newName = createTestWorkflowName('Partial - Update Name Modified');
|
|
|
|
const response = await handleUpdatePartialWorkflow(
|
|
{
|
|
id: created.id,
|
|
operations: [
|
|
{
|
|
type: 'updateName',
|
|
name: newName
|
|
}
|
|
]
|
|
},
|
|
repository,
|
|
mcpContext
|
|
);
|
|
|
|
expect(response.success).toBe(true);
|
|
const updated = response.data as any;
|
|
expect(updated.name).toBe(newName);
|
|
});
|
|
});
|
|
|
|
describe('addTag / removeTag', () => {
|
|
it('should add tag to workflow', async () => {
|
|
const workflow = {
|
|
...SIMPLE_WEBHOOK_WORKFLOW,
|
|
name: createTestWorkflowName('Partial - Add Tag'),
|
|
tags: ['mcp-integration-test']
|
|
};
|
|
|
|
const created = await client.createWorkflow(workflow);
|
|
expect(created.id).toBeTruthy();
|
|
if (!created.id) throw new Error('Workflow ID is missing');
|
|
context.trackWorkflow(created.id);
|
|
|
|
const response = await handleUpdatePartialWorkflow(
|
|
{
|
|
id: created.id,
|
|
operations: [
|
|
{
|
|
type: 'addTag',
|
|
tag: 'new-tag'
|
|
}
|
|
]
|
|
},
|
|
repository,
|
|
mcpContext
|
|
);
|
|
|
|
expect(response.success).toBe(true);
|
|
const updated = response.data as any;
|
|
|
|
// Note: n8n API tag behavior may vary
|
|
if (updated.tags) {
|
|
expect(updated.tags).toContain('new-tag');
|
|
}
|
|
});
|
|
|
|
it('should remove tag from workflow', async () => {
|
|
const workflow = {
|
|
...SIMPLE_WEBHOOK_WORKFLOW,
|
|
name: createTestWorkflowName('Partial - Remove Tag'),
|
|
tags: ['mcp-integration-test', 'to-remove']
|
|
};
|
|
|
|
const created = await client.createWorkflow(workflow);
|
|
expect(created.id).toBeTruthy();
|
|
if (!created.id) throw new Error('Workflow ID is missing');
|
|
context.trackWorkflow(created.id);
|
|
|
|
const response = await handleUpdatePartialWorkflow(
|
|
{
|
|
id: created.id,
|
|
operations: [
|
|
{
|
|
type: 'removeTag',
|
|
tag: 'to-remove'
|
|
}
|
|
]
|
|
},
|
|
repository,
|
|
mcpContext
|
|
);
|
|
|
|
expect(response.success).toBe(true);
|
|
const updated = response.data as any;
|
|
|
|
if (updated.tags) {
|
|
expect(updated.tags).not.toContain('to-remove');
|
|
}
|
|
});
|
|
});
|
|
});
|
|
|
|
// ======================================================================
|
|
// ADVANCED SCENARIOS
|
|
// ======================================================================
|
|
|
|
describe('Advanced Scenarios', () => {
|
|
it('should apply multiple operations in sequence', async () => {
|
|
const workflow = {
|
|
...SIMPLE_WEBHOOK_WORKFLOW,
|
|
name: createTestWorkflowName('Partial - Multiple Ops'),
|
|
tags: ['mcp-integration-test']
|
|
};
|
|
|
|
const created = await client.createWorkflow(workflow);
|
|
expect(created.id).toBeTruthy();
|
|
if (!created.id) throw new Error('Workflow ID is missing');
|
|
context.trackWorkflow(created.id);
|
|
|
|
const response = await handleUpdatePartialWorkflow(
|
|
{
|
|
id: created.id,
|
|
operations: [
|
|
{
|
|
type: 'addNode',
|
|
node: {
|
|
name: 'Set',
|
|
type: 'n8n-nodes-base.set',
|
|
typeVersion: 3.4,
|
|
position: [450, 300],
|
|
parameters: {
|
|
assignments: { assignments: [] }
|
|
}
|
|
}
|
|
},
|
|
{
|
|
type: 'addConnection',
|
|
source: 'Webhook',
|
|
target: 'Set'
|
|
},
|
|
{
|
|
type: 'updateName',
|
|
name: createTestWorkflowName('Partial - Multiple Ops Updated')
|
|
}
|
|
]
|
|
},
|
|
repository,
|
|
mcpContext
|
|
);
|
|
|
|
expect(response.success).toBe(true);
|
|
const updated = response.data as any;
|
|
expect(updated.nodes).toHaveLength(2);
|
|
expect(updated.connections.Webhook).toBeDefined();
|
|
});
|
|
|
|
it('should validate operations without applying (validateOnly mode)', async () => {
|
|
const workflow = {
|
|
...SIMPLE_WEBHOOK_WORKFLOW,
|
|
name: createTestWorkflowName('Partial - Validate Only'),
|
|
tags: ['mcp-integration-test']
|
|
};
|
|
|
|
const created = await client.createWorkflow(workflow);
|
|
expect(created.id).toBeTruthy();
|
|
if (!created.id) throw new Error('Workflow ID is missing');
|
|
context.trackWorkflow(created.id);
|
|
|
|
const response = await handleUpdatePartialWorkflow(
|
|
{
|
|
id: created.id,
|
|
operations: [
|
|
{
|
|
type: 'updateName',
|
|
name: 'New Name'
|
|
}
|
|
],
|
|
validateOnly: true
|
|
},
|
|
repository,
|
|
mcpContext
|
|
);
|
|
|
|
expect(response.success).toBe(true);
|
|
expect(response.data).toHaveProperty('valid', true);
|
|
|
|
// Verify workflow was NOT actually updated
|
|
const current = await client.getWorkflow(created.id);
|
|
expect(current.name).not.toBe('New Name');
|
|
});
|
|
|
|
it('should handle continueOnError mode with partial failures', async () => {
|
|
const workflow = {
|
|
...SIMPLE_WEBHOOK_WORKFLOW,
|
|
name: createTestWorkflowName('Partial - Continue On Error'),
|
|
tags: ['mcp-integration-test']
|
|
};
|
|
|
|
const created = await client.createWorkflow(workflow);
|
|
expect(created.id).toBeTruthy();
|
|
if (!created.id) throw new Error('Workflow ID is missing');
|
|
context.trackWorkflow(created.id);
|
|
|
|
// Mix valid and invalid operations
|
|
const response = await handleUpdatePartialWorkflow(
|
|
{
|
|
id: created.id,
|
|
operations: [
|
|
{
|
|
type: 'updateName',
|
|
name: createTestWorkflowName('Partial - Continue On Error Updated')
|
|
},
|
|
{
|
|
type: 'removeNode',
|
|
nodeName: 'NonExistentNode' // This will fail
|
|
},
|
|
{
|
|
type: 'addTag',
|
|
tag: 'new-tag'
|
|
}
|
|
],
|
|
continueOnError: true
|
|
},
|
|
repository,
|
|
mcpContext
|
|
);
|
|
|
|
// Should succeed with partial results
|
|
expect(response.success).toBe(true);
|
|
expect(response.details?.applied).toBeDefined();
|
|
expect(response.details?.failed).toBeDefined();
|
|
});
|
|
});
|
|
|
|
// ======================================================================
|
|
// WORKFLOW STRUCTURE VALIDATION (prevents corrupted workflows)
|
|
// ======================================================================
|
|
|
|
describe('Workflow Structure Validation', () => {
|
|
it('should reject removal of all connections in multi-node workflow', async () => {
|
|
// Create workflow with 2 nodes and 1 connection
|
|
const workflow = {
|
|
...SIMPLE_HTTP_WORKFLOW,
|
|
name: createTestWorkflowName('Partial - Reject Empty Connections'),
|
|
tags: ['mcp-integration-test']
|
|
};
|
|
|
|
const created = await client.createWorkflow(workflow);
|
|
expect(created.id).toBeTruthy();
|
|
if (!created.id) throw new Error('Workflow ID is missing');
|
|
context.trackWorkflow(created.id);
|
|
|
|
// Try to remove the only connection - should be rejected
|
|
const response = await handleUpdatePartialWorkflow(
|
|
{
|
|
id: created.id,
|
|
operations: [
|
|
{
|
|
type: 'removeConnection',
|
|
source: 'Webhook',
|
|
target: 'HTTP Request',
|
|
sourcePort: 'main',
|
|
targetPort: 'main'
|
|
}
|
|
]
|
|
},
|
|
repository,
|
|
mcpContext
|
|
);
|
|
|
|
// Should fail validation
|
|
expect(response.success).toBe(false);
|
|
expect(response.error).toContain('Workflow validation failed');
|
|
expect(response.details?.errors).toBeDefined();
|
|
expect(Array.isArray(response.details?.errors)).toBe(true);
|
|
expect((response.details?.errors as string[])[0]).toContain('no connections');
|
|
});
|
|
|
|
it('should reject removal of all nodes except one non-webhook node', async () => {
|
|
// Create workflow with 4 nodes: Webhook, Set 1, Set 2, Merge
|
|
const workflow = {
|
|
...MULTI_NODE_WORKFLOW,
|
|
name: createTestWorkflowName('Partial - Reject Single Non-Webhook'),
|
|
tags: ['mcp-integration-test']
|
|
};
|
|
|
|
const created = await client.createWorkflow(workflow);
|
|
expect(created.id).toBeTruthy();
|
|
if (!created.id) throw new Error('Workflow ID is missing');
|
|
context.trackWorkflow(created.id);
|
|
|
|
// Try to remove all nodes except Merge node (non-webhook) - should be rejected
|
|
const response = await handleUpdatePartialWorkflow(
|
|
{
|
|
id: created.id,
|
|
operations: [
|
|
{
|
|
type: 'removeNode',
|
|
nodeName: 'Webhook'
|
|
},
|
|
{
|
|
type: 'removeNode',
|
|
nodeName: 'Set 1'
|
|
},
|
|
{
|
|
type: 'removeNode',
|
|
nodeName: 'Set 2'
|
|
}
|
|
]
|
|
},
|
|
repository,
|
|
mcpContext
|
|
);
|
|
|
|
// Should fail validation
|
|
expect(response.success).toBe(false);
|
|
expect(response.error).toContain('Workflow validation failed');
|
|
expect(response.details?.errors).toBeDefined();
|
|
expect(Array.isArray(response.details?.errors)).toBe(true);
|
|
expect((response.details?.errors as string[])[0]).toContain('Single non-webhook node');
|
|
});
|
|
|
|
it('should allow valid partial updates that maintain workflow integrity', async () => {
|
|
// Create workflow with 4 nodes
|
|
const workflow = {
|
|
...MULTI_NODE_WORKFLOW,
|
|
name: createTestWorkflowName('Partial - Valid Update'),
|
|
tags: ['mcp-integration-test']
|
|
};
|
|
|
|
const created = await client.createWorkflow(workflow);
|
|
expect(created.id).toBeTruthy();
|
|
if (!created.id) throw new Error('Workflow ID is missing');
|
|
context.trackWorkflow(created.id);
|
|
|
|
// Valid update: add a node and connect it
|
|
const response = await handleUpdatePartialWorkflow(
|
|
{
|
|
id: created.id,
|
|
operations: [
|
|
{
|
|
type: 'addNode',
|
|
node: {
|
|
name: 'Process Data',
|
|
type: 'n8n-nodes-base.set',
|
|
typeVersion: 3.4,
|
|
position: [850, 300],
|
|
parameters: {
|
|
assignments: {
|
|
assignments: []
|
|
}
|
|
}
|
|
}
|
|
},
|
|
{
|
|
type: 'addConnection',
|
|
source: 'Merge',
|
|
target: 'Process Data',
|
|
sourcePort: 'main',
|
|
targetPort: 'main'
|
|
}
|
|
]
|
|
},
|
|
repository,
|
|
mcpContext
|
|
);
|
|
|
|
// Should succeed
|
|
expect(response.success).toBe(true);
|
|
const updated = response.data as any;
|
|
expect(updated.nodes).toHaveLength(5); // Original 4 + 1 new
|
|
expect(updated.nodes.find((n: any) => n.name === 'Process Data')).toBeDefined();
|
|
});
|
|
|
|
it('should reject adding node without connecting it (disconnected node)', async () => {
|
|
// Create workflow with 2 connected nodes
|
|
const workflow = {
|
|
...SIMPLE_HTTP_WORKFLOW,
|
|
name: createTestWorkflowName('Partial - Reject Disconnected Node'),
|
|
tags: ['mcp-integration-test']
|
|
};
|
|
|
|
const created = await client.createWorkflow(workflow);
|
|
expect(created.id).toBeTruthy();
|
|
if (!created.id) throw new Error('Workflow ID is missing');
|
|
context.trackWorkflow(created.id);
|
|
|
|
// Try to add a third node WITHOUT connecting it - should be rejected
|
|
const response = await handleUpdatePartialWorkflow(
|
|
{
|
|
id: created.id,
|
|
operations: [
|
|
{
|
|
type: 'addNode',
|
|
node: {
|
|
name: 'Disconnected Set',
|
|
type: 'n8n-nodes-base.set',
|
|
typeVersion: 3.4,
|
|
position: [800, 300],
|
|
parameters: {
|
|
assignments: {
|
|
assignments: []
|
|
}
|
|
}
|
|
}
|
|
// Note: No connection operation - this creates a disconnected node
|
|
}
|
|
]
|
|
},
|
|
repository,
|
|
mcpContext
|
|
);
|
|
|
|
// Should fail validation - disconnected node detected
|
|
expect(response.success).toBe(false);
|
|
expect(response.error).toContain('Workflow validation failed');
|
|
expect(response.details?.errors).toBeDefined();
|
|
expect(Array.isArray(response.details?.errors)).toBe(true);
|
|
const errorMessage = (response.details?.errors as string[])[0];
|
|
expect(errorMessage).toContain('Disconnected nodes detected');
|
|
expect(errorMessage).toContain('Disconnected Set');
|
|
});
|
|
});
|
|
});
|