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import { execSync } from "node:child_process";
import { mkdtemp, rm, writeFile } from "node:fs/promises";
import { tmpdir } from "node:os";
import { join } from "node:path";
import { afterEach, beforeEach, describe, expect, it } from "vitest";
import { LspManager } from "../../src/lsp/manager.js";
import { resolveServersFromConfig } from "../../src/lsp/server.js";
/**
* Opt-in smoke test against the REAL luau-lsp binary. Skipped automatically
* (never fails CI) when `luau-lsp` is not on PATH — mirrors opencode's
* platform-guarded launch test. When the binary IS present, it proves the
* end-to-end path: spawn → initialize handshake → didOpen → real diagnostics.
*/
function hasLuauLsp(): boolean {
try {
execSync("luau-lsp --version", { stdio: "ignore" });
return true;
} catch {
return false;
}
}
const RUN = hasLuauLsp();
describe.skipIf(!RUN)("luau-lsp real-binary smoke", () => {
let root: string;
let manager: LspManager;
beforeEach(async () => {
root = await mkdtemp(join(tmpdir(), "dispatch-luau-smoke-"));
manager = new LspManager();
});
afterEach(async () => {
await manager.shutdownAll();
await rm(root, { recursive: true, force: true });
});
it("reports a real type error for a bad .luau file", async () => {
const servers = resolveServersFromConfig({
"luau-lsp": {
command: ["luau-lsp", "lsp"],
extensions: [".luau"],
initialization: {
"luau-lsp": {
platform: { type: "roblox" },
diagnostics: { strictDatamodelTypes: false },
},
},
},
});
const file = join(root, "bad.luau");
await writeFile(file, 'local x: number = "not a number"\nprint(x)\n');
await manager.touchFile({ file, root, servers, mode: "document" });
const diagnostics = manager.getDiagnostics({ root, servers, file });
const messages = (diagnostics[file] ?? []).map((d) => d.message).join("\n");
expect(messages.length).toBeGreaterThan(0);
expect(messages.toLowerCase()).toContain("number");
}, 60_000);
});
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