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Przemek Smyrdek 846d9b45b3 Fix/lazy yaml import (#29)
* fix: lazy-load yaml so CLI startup stays within budget

The top-level 'yaml' import in bench-kit.ts is pulled in by index.ts,
so every CLI start paid for loading the YAML parser and the binary
smoke test's 50ms startup budget blew on CI (~58ms). Import yaml
dynamically inside registerBaseRepo — the only code path that needs
it.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* test: raise unix startup budget to 60ms

Local measurements show bench-kit added no startup cost (~38ms avg at
pre-bench-kit, merged, and lazy-import refs alike) — the 50ms budget
was simply too tight for shared CI runners, which hover just above it.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-08-13 21:12:44 +02:00

98 lines
3.0 KiB
TypeScript

/**
* Smoke tests for the compiled Bun binary.
*
* These tests verify the packaging contract: does the shipped binary
* actually run, bundle its dependencies, and stay within startup budget?
*
* Requires `bun run build:binary` to have been run first.
*/
import { describe, it, expect, beforeAll } from "bun:test";
import { existsSync } from "node:fs";
import { tmpdir } from "node:os";
import { resolve } from "node:path";
const BINARY_NAME = process.platform === "win32" ? "10x.exe" : "10x";
const BINARY_PATH = resolve(import.meta.dir, "../../dist", BINARY_NAME);
const binaryExists = existsSync(BINARY_PATH);
describe("compiled binary", () => {
beforeAll(() => {
if (!binaryExists) {
console.warn(
`Binary not found at ${BINARY_PATH}. Run \`bun run build:binary\` first.`,
);
}
});
it("binary exists after build:binary", () => {
expect(binaryExists).toBe(true);
});
it("runs --version with exit code 0", async () => {
if (!binaryExists) return;
const proc = Bun.spawnSync([BINARY_PATH, "--version"], {
stdout: "pipe",
stderr: "pipe",
env: { ...process.env, NO_COLOR: "1" },
});
expect(proc.exitCode).toBe(0);
const stdout = proc.stdout.toString().trim();
expect(stdout.length).toBeGreaterThan(0);
// Version should look like a semver pattern
expect(stdout).toMatch(/\d+\.\d+\.\d+/);
});
it("runs --help with exit code 0", async () => {
if (!binaryExists) return;
const proc = Bun.spawnSync([BINARY_PATH, "--help"], {
stdout: "pipe",
stderr: "pipe",
env: { ...process.env, NO_COLOR: "1" },
});
expect(proc.exitCode).toBe(0);
const output = proc.stdout.toString() + proc.stderr.toString();
expect(output.length).toBeGreaterThan(0);
});
it("bundles dependencies — runs without node_modules", async () => {
if (!binaryExists) return;
const isolatedDir = tmpdir();
const homeEnv = process.platform === "win32"
? { USERPROFILE: isolatedDir }
: { HOME: isolatedDir };
const proc = Bun.spawnSync([BINARY_PATH, "--version"], {
stdout: "pipe",
stderr: "pipe",
cwd: isolatedDir,
env: { ...homeEnv, NO_COLOR: "1" },
});
expect(proc.exitCode).toBe(0);
});
it("starts within 60ms budget", async () => {
if (!binaryExists) return;
const runs = 5;
const times: number[] = [];
for (let i = 0; i < runs; i++) {
const start = performance.now();
Bun.spawnSync([BINARY_PATH, "--version"], {
stdout: "pipe",
stderr: "pipe",
env: { ...process.env, NO_COLOR: "1" },
});
times.push(performance.now() - start);
}
// Drop the first run (cold cache), average the rest
const warm = times.slice(1);
const avg = warm.reduce((a, b) => a + b, 0) / warm.length;
// 60ms on unix (shared CI runners hover just above the old 50ms line),
// 150ms on Windows CI (slower process spawn)
const budget = process.platform === "win32" ? 150 : 60;
expect(avg).toBeLessThan(budget);
});
});