Function shEngine

tests/engine-invoke.test.ts:14–24

* Integration tests for invokeEngineAsync using /bin/sh as a fake engine * binary. These pin the four behaviors that actually bit us during Phase 1 * end-to-end validation: stdout capture, stderr surfacing on non-zero exit, * stdin-closed so cat-like children don't hang, and fast-kill on timeout.

(name: string, script: string)

 */

function shEngine(name: string, script: string): ResolvedEngine {
  return {
    name,
    label: name,
    config: {
      bin: '/bin/sh',
      // Ignore the prompt — fake engines don't consume it.
      args: () => ['-c', script],
    },
  };
}

test('invokeEngineAsync: returns trimmed stdout on zero exit', async () => {
  const { invokeEngineAsync } = await import('../src/engine.js');