moving

tests/sidecar/mcp-manager.test.ts

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+import { describe, it, expect, beforeEach } from 'vitest';
+import { McpManager, type McpServerConfig } from '../../sidecar/src/mcp-manager.js';
+
+describe('MCP Manager', () => {
+  let manager: McpManager;
+
+  beforeEach(() => {
+    manager = new McpManager();
+  });
+
+  it('starts with no servers', () => {
+    expect(manager.listServers()).toEqual([]);
+  });
+
+  it('adds a server config', () => {
+    const config: McpServerConfig = {
+      id: 'filesystem',
+      name: 'File System',
+      command: 'npx',
+      args: ['-y', '@modelcontextprotocol/server-filesystem', '/tmp'],
+    };
+    manager.addServer(config);
+    expect(manager.listServers()).toHaveLength(1);
+    expect(manager.listServers()[0].id).toBe('filesystem');
+  });
+
+  it('removes a server config', () => {
+    manager.addServer({ id: 'test', name: 'Test', command: 'echo', args: ['hello'] });
+    expect(manager.listServers()).toHaveLength(1);
+    manager.removeServer('test');
+    expect(manager.listServers()).toHaveLength(0);
+  });
+
+  it('prevents duplicate server IDs', () => {
+    manager.addServer({ id: 'dup', name: 'First', command: 'a', args: [] });
+    expect(() => {
+      manager.addServer({ id: 'dup', name: 'Second', command: 'b', args: [] });
+    }).toThrow('already exists');
+  });
+
+  it('gets server by ID', () => {
+    manager.addServer({ id: 'fs', name: 'FS', command: 'npx', args: [] });
+    const server = manager.getServer('fs');
+    expect(server?.name).toBe('FS');
+  });
+
+  it('returns undefined for unknown server', () => {
+    expect(manager.getServer('nope')).toBeUndefined();
+  });
+
+  it('serializes and deserializes config', () => {
+    manager.addServer({ id: 'a', name: 'A', command: 'x', args: ['1'] });
+    manager.addServer({ id: 'b', name: 'B', command: 'y', args: ['2'], env: { FOO: 'bar' } });
+
+    const json = manager.toJSON();
+    const restored = McpManager.fromJSON(json);
+
+    expect(restored.listServers()).toHaveLength(2);
+    expect(restored.getServer('b')?.env).toEqual({ FOO: 'bar' });
+  });
+});