Files
ccs/tests/unit/hooks/ccs-websearch-mcp-server.test.ts
T

514 lines
16 KiB
TypeScript

import { describe, expect, it } from 'bun:test';
import { spawn } from 'child_process';
import { mkdtempSync, readFileSync, rmSync, writeFileSync } from 'node:fs';
import { tmpdir } from 'node:os';
import { join } from 'node:path';
const serverPath = join(process.cwd(), 'lib', 'mcp', 'ccs-websearch-server.cjs');
function encodeMessage(message: unknown): string {
return `${JSON.stringify(message)}\n`;
}
function encodeLegacyMessage(message: unknown): string {
const body = JSON.stringify(message);
return `Content-Length: ${Buffer.byteLength(body)}\r\n\r\n${body}`;
}
function collectResponses(
child: ReturnType<typeof spawn>,
expectedCount: number
): Promise<Array<Record<string, unknown>>> {
return new Promise((resolve, reject) => {
let buffer = Buffer.alloc(0);
const responses: Array<Record<string, unknown>> = [];
const timer = setTimeout(() => reject(new Error('Timed out waiting for MCP responses')), 5000);
function tryParse(): void {
while (true) {
const startsWithLegacyHeaders = buffer
.slice(0, Math.min(buffer.length, 32))
.toString('utf8')
.toLowerCase()
.startsWith('content-length:');
let body: string;
if (startsWithLegacyHeaders) {
const headerEnd = buffer.indexOf('\r\n\r\n');
if (headerEnd === -1) {
return;
}
const headerText = buffer.slice(0, headerEnd).toString('utf8');
const match = headerText.match(/content-length:\s*(\d+)/i);
if (!match) {
reject(new Error('Missing Content-Length header'));
return;
}
const contentLength = Number.parseInt(match[1], 10);
const messageEnd = headerEnd + 4 + contentLength;
if (buffer.length < messageEnd) {
return;
}
body = buffer.slice(headerEnd + 4, messageEnd).toString('utf8');
buffer = buffer.slice(messageEnd);
} else {
const newlineIndex = buffer.indexOf('\n');
if (newlineIndex === -1) {
return;
}
body = buffer.slice(0, newlineIndex).toString('utf8').replace(/\r$/, '').trim();
buffer = buffer.slice(newlineIndex + 1);
if (!body) {
continue;
}
}
responses.push(JSON.parse(body) as Record<string, unknown>);
if (responses.length >= expectedCount) {
clearTimeout(timer);
resolve(responses);
return;
}
}
}
child.stdout.on('data', (chunk: Buffer) => {
buffer = Buffer.concat([buffer, chunk]);
try {
tryParse();
} catch (error) {
clearTimeout(timer);
reject(error);
}
});
child.on('error', (error) => {
clearTimeout(timer);
reject(error);
});
child.stderr.on('data', () => {
// Ignore debug noise in tests.
});
});
}
function waitForClose(child: ReturnType<typeof spawn>): Promise<number | null> {
return new Promise((resolve, reject) => {
child.once('close', (code) => resolve(code));
child.once('error', reject);
});
}
describe('ccs-websearch MCP server', () => {
it('lists the CCS WebSearch tool and returns provider-backed results', async () => {
const tempDir = mkdtempSync(join(tmpdir(), 'ccs-websearch-mcp-server-'));
const preloadPath = join(tempDir, 'mock-fetch.cjs');
const html = `
<a class="result__a" href="/l/?uddg=https%3A%2F%2Fexample.com%2Farticle">Example title</a>
<a class="result__snippet">Example snippet</a>
`.trim();
writeFileSync(
preloadPath,
`global.fetch = async () => ({ ok: true, text: async () => ${JSON.stringify(html)} });\n`,
'utf8'
);
const child = spawn('node', ['-r', preloadPath, serverPath], {
env: {
...process.env,
CCS_PROFILE_TYPE: 'settings',
CCS_WEBSEARCH_ENABLED: '1',
CCS_WEBSEARCH_SKIP: '0',
CCS_WEBSEARCH_BRAVE: '0',
CCS_WEBSEARCH_DUCKDUCKGO: '1',
CCS_WEBSEARCH_EXA: '0',
CCS_WEBSEARCH_GEMINI: '0',
CCS_WEBSEARCH_GROK: '0',
CCS_WEBSEARCH_OPENCODE: '0',
CCS_WEBSEARCH_TAVILY: '0',
},
stdio: ['pipe', 'pipe', 'pipe'],
});
try {
const responsesPromise = collectResponses(child, 3);
child.stdin.write(
encodeMessage({
jsonrpc: '2.0',
id: 1,
method: 'initialize',
params: {
protocolVersion: '2024-11-05',
capabilities: {},
clientInfo: { name: 'bun-test', version: '1.0.0' },
},
})
);
child.stdin.write(encodeMessage({ jsonrpc: '2.0', id: 2, method: 'tools/list' }));
child.stdin.write(
encodeMessage({
jsonrpc: '2.0',
id: 3,
method: 'tools/call',
params: { name: 'WebSearch', arguments: { query: 'btc price' } },
})
);
const responses = await responsesPromise;
const toolsList = responses.find((message) => message.id === 2);
const toolCall = responses.find((message) => message.id === 3);
expect(toolsList?.result).toEqual({
tools: [
{
name: 'WebSearch',
description:
'Third-party WebSearch replacement for CCS-managed Claude launches. Use this instead of Bash/curl/http fetches for web lookups. Provider order: Exa, Tavily, Brave Search, SearXNG, DuckDuckGo, then optional legacy CLI fallback.',
inputSchema: {
type: 'object',
properties: {
query: {
type: 'string',
description:
'Web query to resolve through CCS providers. Prefer this tool over ad hoc Bash/curl lookups when you need current web information.',
},
},
required: ['query'],
additionalProperties: false,
},
},
],
});
expect(toolCall?.result).toBeDefined();
expect(
((toolCall?.result as { content: Array<{ text: string }> }).content[0] || {}).text
).toContain('CCS local WebSearch evidence');
expect(
((toolCall?.result as { content: Array<{ text: string }> }).content[0] || {}).text
).toContain('Provider: DuckDuckGo');
} finally {
child.kill();
rmSync(tempDir, { recursive: true, force: true });
}
});
it('returns an MCP error result when DuckDuckGo responds with non-result HTML', async () => {
const tempDir = mkdtempSync(join(tmpdir(), 'ccs-websearch-mcp-server-'));
const preloadPath = join(tempDir, 'mock-fetch.cjs');
const html = `
<html>
<body>
<form action="/anomaly.js" method="post">
<input type="hidden" name="q" value="btc price" />
</form>
</body>
</html>
`.trim();
writeFileSync(
preloadPath,
`global.fetch = async () => ({ ok: true, status: 202, headers: { get: () => null }, text: async () => ${JSON.stringify(html)} });\n`,
'utf8'
);
const child = spawn('node', ['-r', preloadPath, serverPath], {
env: {
...process.env,
CCS_PROFILE_TYPE: 'settings',
CCS_WEBSEARCH_ENABLED: '1',
CCS_WEBSEARCH_SKIP: '0',
CCS_WEBSEARCH_BRAVE: '0',
CCS_WEBSEARCH_DUCKDUCKGO: '1',
CCS_WEBSEARCH_EXA: '0',
CCS_WEBSEARCH_GEMINI: '0',
CCS_WEBSEARCH_GROK: '0',
CCS_WEBSEARCH_OPENCODE: '0',
CCS_WEBSEARCH_TAVILY: '0',
},
stdio: ['pipe', 'pipe', 'pipe'],
});
try {
const responsesPromise = collectResponses(child, 2);
child.stdin.write(
encodeMessage({
jsonrpc: '2.0',
id: 1,
method: 'initialize',
params: {
protocolVersion: '2024-11-05',
capabilities: {},
clientInfo: { name: 'bun-test', version: '1.0.0' },
},
})
);
child.stdin.write(
encodeMessage({
jsonrpc: '2.0',
id: 2,
method: 'tools/call',
params: { name: 'WebSearch', arguments: { query: 'btc price' } },
})
);
const responses = await responsesPromise;
const toolCall = responses.find((message) => message.id === 2);
expect(toolCall?.result).toBeDefined();
expect((toolCall?.result as { isError: boolean }).isError).toBe(true);
expect(
((toolCall?.result as { content: Array<{ text: string }> }).content[0] || {}).text
).toContain('DuckDuckGo returned non-result HTML response');
expect(
((toolCall?.result as { content: Array<{ text: string }> }).content[0] || {}).text
).not.toContain('Result count: 0');
} finally {
child.kill();
rmSync(tempDir, { recursive: true, force: true });
}
});
it('accepts the legacy search alias for direct calls', async () => {
const tempDir = mkdtempSync(join(tmpdir(), 'ccs-websearch-mcp-server-'));
const preloadPath = join(tempDir, 'mock-fetch.cjs');
const html = `
<a class="result__a" href="/l/?uddg=https%3A%2F%2Fexample.com%2Farticle">Example title</a>
<a class="result__snippet">Example snippet</a>
`.trim();
writeFileSync(
preloadPath,
`global.fetch = async () => ({ ok: true, text: async () => ${JSON.stringify(html)} });\n`,
'utf8'
);
const child = spawn('node', ['-r', preloadPath, serverPath], {
env: {
...process.env,
CCS_PROFILE_TYPE: 'settings',
CCS_WEBSEARCH_ENABLED: '1',
CCS_WEBSEARCH_SKIP: '0',
CCS_WEBSEARCH_BRAVE: '0',
CCS_WEBSEARCH_DUCKDUCKGO: '1',
CCS_WEBSEARCH_EXA: '0',
CCS_WEBSEARCH_GEMINI: '0',
CCS_WEBSEARCH_GROK: '0',
CCS_WEBSEARCH_OPENCODE: '0',
CCS_WEBSEARCH_TAVILY: '0',
},
stdio: ['pipe', 'pipe', 'pipe'],
});
try {
const responsesPromise = collectResponses(child, 2);
child.stdin.write(
encodeMessage({
jsonrpc: '2.0',
id: 1,
method: 'initialize',
params: {
protocolVersion: '2024-11-05',
capabilities: {},
clientInfo: { name: 'bun-test', version: '1.0.0' },
},
})
);
child.stdin.write(
encodeMessage({
jsonrpc: '2.0',
id: 2,
method: 'tools/call',
params: { name: 'search', arguments: { query: 'btc price' } },
})
);
const responses = await responsesPromise;
const toolCall = responses.find((message) => message.id === 2);
expect(toolCall?.result).toBeDefined();
expect(
((toolCall?.result as { content: Array<{ text: string }> }).content[0] || {}).text
).toContain('CCS local WebSearch evidence');
expect(
((toolCall?.result as { content: Array<{ text: string }> }).content[0] || {}).text
).toContain('Provider: DuckDuckGo');
} finally {
child.kill();
rmSync(tempDir, { recursive: true, force: true });
}
});
it('hides the tool for native account profiles', async () => {
const child = spawn('node', [serverPath], {
env: {
...process.env,
CCS_PROFILE_TYPE: 'account',
CCS_WEBSEARCH_ENABLED: '1',
CCS_WEBSEARCH_SKIP: '1',
CCS_WEBSEARCH_DUCKDUCKGO: '1',
},
stdio: ['pipe', 'pipe', 'pipe'],
});
try {
const responsesPromise = collectResponses(child, 2);
child.stdin.write(
encodeMessage({
jsonrpc: '2.0',
id: 1,
method: 'initialize',
params: {
protocolVersion: '2024-11-05',
capabilities: {},
clientInfo: { name: 'bun-test', version: '1.0.0' },
},
})
);
child.stdin.write(encodeMessage({ jsonrpc: '2.0', id: 2, method: 'tools/list' }));
const responses = await responsesPromise;
const toolsList = responses.find((message) => message.id === 2);
expect(toolsList?.result).toEqual({ tools: [] });
} finally {
child.kill();
}
});
it('writes trace records for exposure, tool calls, provider success, and session summary', async () => {
const tempDir = mkdtempSync(join(tmpdir(), 'ccs-websearch-mcp-trace-'));
const preloadPath = join(tempDir, 'mock-fetch.cjs');
const ccsHome = join(tempDir, 'home');
const tracePath = join(ccsHome, '.ccs', 'logs', 'websearch-trace.jsonl');
const html = `
<a class="result__a" href="/l/?uddg=https%3A%2F%2Fexample.com%2Farticle">Example title</a>
<a class="result__snippet">Example snippet</a>
`.trim();
writeFileSync(
preloadPath,
`global.fetch = async () => ({ ok: true, text: async () => ${JSON.stringify(html)} });\n`,
'utf8'
);
const child = spawn('node', ['-r', preloadPath, serverPath], {
env: {
...process.env,
CCS_HOME: ccsHome,
CCS_PROFILE_TYPE: 'settings',
CCS_WEBSEARCH_TRACE: '1',
CCS_WEBSEARCH_TRACE_LAUNCH_ID: 'mcp-trace-test',
CCS_WEBSEARCH_TRACE_LAUNCHER: 'unit-test',
CCS_WEBSEARCH_ENABLED: '1',
CCS_WEBSEARCH_SKIP: '0',
CCS_WEBSEARCH_BRAVE: '0',
CCS_WEBSEARCH_DUCKDUCKGO: '1',
CCS_WEBSEARCH_EXA: '0',
CCS_WEBSEARCH_GEMINI: '0',
CCS_WEBSEARCH_GROK: '0',
CCS_WEBSEARCH_OPENCODE: '0',
CCS_WEBSEARCH_TAVILY: '0',
},
stdio: ['pipe', 'pipe', 'pipe'],
});
try {
const responsesPromise = collectResponses(child, 3);
child.stdin.write(
encodeMessage({
jsonrpc: '2.0',
id: 1,
method: 'initialize',
params: {
protocolVersion: '2024-11-05',
capabilities: {},
clientInfo: { name: 'bun-test', version: '1.0.0' },
},
})
);
child.stdin.write(encodeMessage({ jsonrpc: '2.0', id: 2, method: 'tools/list' }));
child.stdin.write(
encodeMessage({
jsonrpc: '2.0',
id: 3,
method: 'tools/call',
params: { name: 'WebSearch', arguments: { query: 'btc price' } },
})
);
await responsesPromise;
} finally {
child.kill();
await waitForClose(child);
}
const traceEvents = readFileSync(tracePath, 'utf8')
.trim()
.split('\n')
.map((line) => JSON.parse(line) as Record<string, unknown>);
expect(
traceEvents.some((event) => event.event === 'mcp_tools_list' && event.exposed === true)
).toBe(true);
expect(
traceEvents.some(
(event) => event.event === 'mcp_tool_call_received' && event.toolName === 'WebSearch'
)
).toBe(true);
expect(
traceEvents.some(
(event) =>
event.event === 'websearch_provider_success' && event.providerName === 'DuckDuckGo'
)
).toBe(true);
expect(
traceEvents.some(
(event) =>
event.event === 'mcp_session_summary' &&
event.calledWebSearch === true &&
event.toolCalls === 1
)
).toBe(true);
rmSync(tempDir, { recursive: true, force: true });
});
it('accepts legacy Content-Length framed requests for compatibility', async () => {
const child = spawn('node', [serverPath], {
env: {
...process.env,
CCS_PROFILE_TYPE: 'account',
CCS_WEBSEARCH_ENABLED: '1',
CCS_WEBSEARCH_SKIP: '1',
CCS_WEBSEARCH_DUCKDUCKGO: '1',
},
stdio: ['pipe', 'pipe', 'pipe'],
});
try {
const responsesPromise = collectResponses(child, 2);
child.stdin.write(
encodeLegacyMessage({
jsonrpc: '2.0',
id: 1,
method: 'initialize',
params: {
protocolVersion: '2024-11-05',
capabilities: {},
clientInfo: { name: 'bun-test', version: '1.0.0' },
},
})
);
child.stdin.write(encodeLegacyMessage({ jsonrpc: '2.0', id: 2, method: 'tools/list' }));
const responses = await responsesPromise;
const toolsList = responses.find((message) => message.id === 2);
expect(toolsList?.result).toEqual({ tools: [] });
} finally {
child.kill();
}
});
});