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SinabinaandClaude Opus 4.8
b6a007a7e3
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
64 lines
2.9 KiB
TypeScript
64 lines
2.9 KiB
TypeScript
import { describe, test, expect } from 'bun:test';
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import * as fs from 'fs';
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import * as path from 'path';
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// v1.44 outer supervisor — static-grep invariants.
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//
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// Pre-v1.44 `$B connect` was fire-and-forget: spawn server detached, CLI
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// exits, server runs unsupervised. If the server crashed, the user had to
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// re-run `$B connect`. The opt-in supervisor (--supervise or
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// BROWSE_SUPERVISE=1) keeps the CLI attached and respawns the server on
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// unexpected exit, with the same crash-loop guard shape as the v1.44
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// terminal-agent watchdog.
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//
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// Live respawn tests belong in the e2e tier (real Bun.spawn cycles take
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// 3-8s each). These tripwires defend the load-bearing invariants:
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// opt-in by default, signal handlers wired, crash-loop guard, env knobs.
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const CLI_TS = path.resolve(new URL(import.meta.url).pathname, '..', '..', 'src', 'cli.ts');
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describe('CLI outer supervisor (v1.44+)', () => {
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test('1. supervisor is opt-in via --supervise flag or BROWSE_SUPERVISE env', () => {
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const src = fs.readFileSync(CLI_TS, 'utf-8');
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expect(src).toContain("commandArgs.includes('--supervise')");
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expect(src).toContain("process.env.BROWSE_SUPERVISE === '1'");
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// Default path MUST still exit 0 promptly. The legacy contract is
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// that every caller of `$B connect` (Claude Code Bash tool, scripts,
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// CI) gets a prompt return.
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expect(src).toMatch(/if \(!superviseRequested\) \{\s*process\.exit\(0\);\s*\}/);
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});
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test('2. SIGINT and SIGTERM trigger clean teardown', () => {
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const src = fs.readFileSync(CLI_TS, 'utf-8');
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// Both signals must hit the teardown path or the user's Ctrl-C leaves
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// an orphaned server (worse than no supervisor).
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expect(src).toMatch(/process\.on\('SIGINT'.*teardownAndExit/);
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expect(src).toMatch(/process\.on\('SIGTERM'.*teardownAndExit/);
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// Teardown must signal the supervised server before exiting itself.
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expect(src).toContain("safeKill(state.pid, 'SIGTERM')");
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});
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test('3. crash-loop guard with 5-in-5min rolling window', () => {
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const src = fs.readFileSync(CLI_TS, 'utf-8');
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expect(src).toContain('SUPERVISOR_GUARD_WINDOW_MS = 5 * 60_000');
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expect(src).toContain('SUPERVISOR_GUARD_MAX = 5');
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// Window pruning: a long-lived daemon with sporadic crashes must NOT
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// hit the guard (otherwise we punish the user for the supervisor doing
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// its job).
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expect(src).toMatch(/respawns\.shift\(\)/);
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});
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test('4. exponential backoff schedule, env-overridable', () => {
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const src = fs.readFileSync(CLI_TS, 'utf-8');
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expect(src).toContain('GSTACK_SUPERVISOR_BACKOFF');
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// Default schedule must include short waits at first (rapid recovery
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// from transient crashes) and cap at a sensible long wait.
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expect(src).toContain('1000,2000,4000,8000,30000');
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});
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test('5. tick interval is env-overridable for tests', () => {
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const src = fs.readFileSync(CLI_TS, 'utf-8');
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expect(src).toContain('GSTACK_SUPERVISOR_TICK_MS');
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});
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});
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