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toHaveResources

Checks that an MCP server provides all of the specified resources. This matcher works with MCPStdinSubprocess instances.

Syntax​

await expect(app).toHaveResources(resourceNames);

Parameters​

  • resourceNames: An array of resource names to check for

Example​

import { mcpShell } from 'expect-mcp';
import { test, expect } from 'vitest';

test('server provides configuration resources', async () => {
  const app = mcpShell('node config-server.js');
  await app.initialize();

  await expect(app).toHaveResources(['app_config', 'user_settings']);

  app.close();
});

Error Messages​

If any of the resources don't exist:

await expect(app).toHaveResources(['app_config', 'nonexistent_resource']);
// Error: Expected server to have all resources ["app_config", "nonexistent_resource"], but "nonexistent_resource" was not found.
// Available resources: app_config, user_settings

See Also​