|
| 1 | +/** |
| 2 | + * @license |
| 3 | + * Copyright 2026 Google LLC |
| 4 | + * SPDX-License-Identifier: Apache-2.0 |
| 5 | + */ |
| 6 | + |
| 7 | +import { describe, it, expect, beforeEach, afterEach } from 'vitest'; |
| 8 | +import { TestRig } from './test-helper.js'; |
| 9 | +import { join, dirname } from 'node:path'; |
| 10 | +import { fileURLToPath } from 'node:url'; |
| 11 | +import fs from 'node:fs'; |
| 12 | + |
| 13 | +const __dirname = dirname(fileURLToPath(import.meta.url)); |
| 14 | + |
| 15 | +describe('mcp-resources-integration', () => { |
| 16 | + let rig: TestRig; |
| 17 | + |
| 18 | + beforeEach(() => { |
| 19 | + rig = new TestRig(); |
| 20 | + }); |
| 21 | + |
| 22 | + afterEach(async () => await rig.cleanup()); |
| 23 | + |
| 24 | + it('should list mcp resources', async () => { |
| 25 | + await rig.setup('mcp-list-resources-test', { |
| 26 | + settings: { |
| 27 | + model: { |
| 28 | + name: 'gemini-3-flash-preview', |
| 29 | + }, |
| 30 | + }, |
| 31 | + fakeResponsesPath: join(__dirname, 'mcp-list-resources.responses'), |
| 32 | + }); |
| 33 | + |
| 34 | + // Workaround for ProjectRegistry save issue |
| 35 | + const userGeminiDir = join(rig.homeDir!, '.gemini'); |
| 36 | + fs.writeFileSync(join(userGeminiDir, 'projects.json'), '{"projects":{}}'); |
| 37 | + |
| 38 | + // Add a dummy server to get setup done |
| 39 | + rig.addTestMcpServer('resource-server', { |
| 40 | + name: 'resource-server', |
| 41 | + tools: [], |
| 42 | + }); |
| 43 | + |
| 44 | + // Overwrite the script with resource support |
| 45 | + const scriptPath = join(rig.testDir!, 'test-mcp-resource-server.mjs'); |
| 46 | + const scriptContent = ` |
| 47 | +import { Server } from '@modelcontextprotocol/sdk/server/index.js'; |
| 48 | +import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js'; |
| 49 | +import { |
| 50 | + ListResourcesRequestSchema, |
| 51 | +} from '@modelcontextprotocol/sdk/types.js'; |
| 52 | +
|
| 53 | +const server = new Server( |
| 54 | + { |
| 55 | + name: 'resource-server', |
| 56 | + version: '1.0.0', |
| 57 | + }, |
| 58 | + { |
| 59 | + capabilities: { |
| 60 | + resources: {}, |
| 61 | + }, |
| 62 | + }, |
| 63 | +); |
| 64 | +
|
| 65 | +server.setRequestHandler(ListResourcesRequestSchema, async () => { |
| 66 | + return { |
| 67 | + resources: [ |
| 68 | + { |
| 69 | + uri: 'test://resource1', |
| 70 | + name: 'Resource 1', |
| 71 | + mimeType: 'text/plain', |
| 72 | + description: 'A test resource', |
| 73 | + } |
| 74 | + ], |
| 75 | + }; |
| 76 | +}); |
| 77 | +
|
| 78 | +const transport = new StdioServerTransport(); |
| 79 | +await server.connect(transport); |
| 80 | +`; |
| 81 | + fs.writeFileSync(scriptPath, scriptContent); |
| 82 | + |
| 83 | + const output = await rig.run({ |
| 84 | + args: 'List all available MCP resources.', |
| 85 | + env: { GEMINI_API_KEY: 'dummy' }, |
| 86 | + }); |
| 87 | + |
| 88 | + const foundCall = await rig.waitForToolCall('list_mcp_resources'); |
| 89 | + expect(foundCall).toBeTruthy(); |
| 90 | + expect(output).toContain('test://resource1'); |
| 91 | + }, 60000); |
| 92 | + |
| 93 | + it('should read mcp resource', async () => { |
| 94 | + await rig.setup('mcp-read-resource-test', { |
| 95 | + settings: { |
| 96 | + model: { |
| 97 | + name: 'gemini-3-flash-preview', |
| 98 | + }, |
| 99 | + }, |
| 100 | + fakeResponsesPath: join(__dirname, 'mcp-read-resource.responses'), |
| 101 | + }); |
| 102 | + |
| 103 | + // Workaround for ProjectRegistry save issue |
| 104 | + const userGeminiDir = join(rig.homeDir!, '.gemini'); |
| 105 | + fs.writeFileSync(join(userGeminiDir, 'projects.json'), '{"projects":{}}'); |
| 106 | + |
| 107 | + // Add a dummy server to get setup done |
| 108 | + rig.addTestMcpServer('resource-server', { |
| 109 | + name: 'resource-server', |
| 110 | + tools: [], |
| 111 | + }); |
| 112 | + |
| 113 | + // Overwrite the script with resource support |
| 114 | + const scriptPath = join(rig.testDir!, 'test-mcp-resource-server.mjs'); |
| 115 | + const scriptContent = ` |
| 116 | +import { Server } from '@modelcontextprotocol/sdk/server/index.js'; |
| 117 | +import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js'; |
| 118 | +import { |
| 119 | + ListResourcesRequestSchema, |
| 120 | + ReadResourceRequestSchema, |
| 121 | +} from '@modelcontextprotocol/sdk/types.js'; |
| 122 | +
|
| 123 | +const server = new Server( |
| 124 | + { |
| 125 | + name: 'resource-server', |
| 126 | + version: '1.0.0', |
| 127 | + }, |
| 128 | + { |
| 129 | + capabilities: { |
| 130 | + resources: {}, |
| 131 | + }, |
| 132 | + }, |
| 133 | +); |
| 134 | +
|
| 135 | +// Need to provide list resources so the tool is active! |
| 136 | +server.setRequestHandler(ListResourcesRequestSchema, async () => { |
| 137 | + return { |
| 138 | + resources: [ |
| 139 | + { |
| 140 | + uri: 'test://resource1', |
| 141 | + name: 'Resource 1', |
| 142 | + mimeType: 'text/plain', |
| 143 | + description: 'A test resource', |
| 144 | + } |
| 145 | + ], |
| 146 | + }; |
| 147 | +}); |
| 148 | +
|
| 149 | +server.setRequestHandler(ReadResourceRequestSchema, async (request) => { |
| 150 | + if (request.params.uri === 'test://resource1') { |
| 151 | + return { |
| 152 | + contents: [ |
| 153 | + { |
| 154 | + uri: 'test://resource1', |
| 155 | + mimeType: 'text/plain', |
| 156 | + text: 'This is the content of resource 1', |
| 157 | + } |
| 158 | + ], |
| 159 | + }; |
| 160 | + } |
| 161 | + throw new Error('Resource not found'); |
| 162 | +}); |
| 163 | +
|
| 164 | +const transport = new StdioServerTransport(); |
| 165 | +await server.connect(transport); |
| 166 | +`; |
| 167 | + fs.writeFileSync(scriptPath, scriptContent); |
| 168 | + |
| 169 | + const output = await rig.run({ |
| 170 | + args: 'Read the MCP resource test://resource1.', |
| 171 | + env: { GEMINI_API_KEY: 'dummy' }, |
| 172 | + }); |
| 173 | + |
| 174 | + const foundCall = await rig.waitForToolCall('read_mcp_resource'); |
| 175 | + expect(foundCall).toBeTruthy(); |
| 176 | + expect(output).toContain('content of resource 1'); |
| 177 | + }, 60000); |
| 178 | +}); |
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