Files
computer-playbook/roles/web-app-mattermost/files/playwright/test-mcp-guest.js
kevinveenbirkenbachandClaude Opus 5 7d8e7e87ff test(mcp): prove a switched-off surface is actually gone
Every role-local MCP spec gates itself on the service flag and skips when the surface is off, so nothing ever checked that switching it off removes it. A surface still serving after the flag went false was indistinguishable from one that was never deployed: both read as a green skip. The gating helper had no inverse at all, so there was no way to assert what a disabled service must not do.

A shared assertion now probes the endpoint with both a GET and a POST while the flag is false and fails on any answer that shows something listening. It counts 401 and 403 as listening, which is the point: a refused credential still means the surface is there. The check is transport-agnostic because the roles differ in their enabled-state probes, over SSE, Streamable HTTP or plain JSON-RPC, while an endpoint that is gone answers none of them. Each role passes its endpoint URL as a thunk, since some resolve it only once a test is running.

The coverage lint requires the registration, and derives the role set from meta/mcp.yml rather than from a filename convention, which is how the tenth role surfaced: its spec is not named like the other nine.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 00:40:15 +02:00

42 lines
1.3 KiB
JavaScript

const { test, expect } = require("@playwright/test");
const { decodeDotenvQuotedValue } = require("./personas");
const { skipUnlessServiceEnabled } = require("./service-gating");
const { registerMcpDisabledState } = require("./mcp-endpoint");
const MCP_ENDPOINT_PATH = decodeDotenvQuotedValue(process.env.MCP_ENDPOINT_PATH);
exports.register = function (shared) {
test("guest: the MCP endpoint rejects unauthenticated access", async ({ page }) => {
skipUnlessServiceEnabled("mcp");
const baseUrl = shared.expectedMattermostBaseUrl();
const response = await page.request.post(`${baseUrl}${MCP_ENDPOINT_PATH}`, {
failOnStatusCode: false,
headers: {
"Content-Type": "application/json",
Accept: "application/json, text/event-stream",
},
data: {
jsonrpc: "2.0",
id: 1,
method: "initialize",
params: {
protocolVersion: "2025-06-18",
capabilities: {},
clientInfo: { name: "infinito-guest-probe", version: "0" },
},
},
});
expect(
response.status(),
"an unauthenticated MCP initialize must not be served a 2xx; the endpoint is bearer-guarded",
).toBeGreaterThanOrEqual(400);
});
registerMcpDisabledState(() =>
new URL(MCP_ENDPOINT_PATH, shared.expectedMattermostBaseUrl()).toString(),
);
};