import { describe, expect, test } from "bun:test";import { chmodSync, mkdirSync, writeFileSync } from "node:fs";import { dirname, join } from "node:path";import { createConfig } from "../../src/config/env";import { getEngineSpec } from "../../src/modules/engines/engine-spec";import { managedVenvPython } from "../../src/modules/engines/runtimes/managed-venv";import type { Recipe } from "../../src/modules/models/types";import { registerControllerTestLifecycle, tempDir } from "./fixtures"; registerControllerTestLifecycle(); const baseRecipe = (backend: Recipe["backend"]): Recipe => ({  id: `${backend}-managed-command`,  name: `${backend} Managed Command`,  model_path: join(tempDir, "models", `${backend}-model`),  backend,  env_vars: null,  tensor_parallel_size: 1,  pipeline_parallel_size: 1,  max_model_len: 4096,  gpu_memory_utilization: 0.8,  kv_cache_dtype: "auto",  max_num_seqs: 8,  trust_remote_code: false,  tool_call_parser: null,  reasoning_parser: null,  enable_auto_tool_choice: false,  quantization: null,  dtype: null,  host: "127.0.0.1",  port: 8000,  served_model_name: `${backend}-model`,  python_path: null,  extra_args: {},  max_thinking_tokens: null,  thinking_mode: null,}); const writeExecutable = (path: string): void => {  mkdirSync(dirname(path), { recursive: true });  writeFileSync(path, "#!/usr/bin/env sh\nexit 0\n", "utf8");  chmodSync(path, 0o755);}; describe("managed runtime launch commands", () => {  test("sglang launch prefers the controller-managed CLI", () => {    const config = createConfig();    const python = managedVenvPython(config, "sglang");    const sglang = join(dirname(python), "sglang");    writeExecutable(python);    writeExecutable(sglang);     const command = getEngineSpec("sglang").buildCommand(baseRecipe("sglang"), config);     expect(command.slice(0, 2)).toEqual([sglang, "serve"]);  });   test("mlx launch prefers the controller-managed Python", () => {    const config = createConfig();    const python = managedVenvPython(config, "mlx");    writeExecutable(python);     const command = getEngineSpec("mlx").buildCommand(baseRecipe("mlx"), config);     expect(command.slice(0, 3)).toEqual([python, "-m", "mlx_lm.server"]);  });});