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    <title>Code coverage report for tests/helpers/spawn-stub.ts</title>
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<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">import { type ExecutionContext } from 'ava'
&nbsp;
import sinon from 'sinon'
&nbsp;
import childProcessModule, { ChildProcess } from 'node:child_process'
import EventEmitter from 'node:events'
&nbsp;
type FakeProcessBehaviour = (proc: FakeProcess) =&gt; void
&nbsp;
class FakeProcess extends EventEmitter {
  stdout = new EventEmitter()
  stderr = new EventEmitter()
&nbsp;
  constructor(behaviour?: FakeProcessBehaviour) {
    super()
&nbsp;
    if (behaviour) {
      setTimeout(() =&gt; behaviour(this), 0)
    }
  }
}
&nbsp;
export function stubSpawn(
  t: ExecutionContext&lt;unknown&gt;,
  behaviour?: FakeProcessBehaviour
) {
  let spawnStub = sinon
    .stub(childProcessModule, 'spawn')
    .returns(new FakeProcess(behaviour) as ChildProcess)
&nbsp;
  t.teardown(() =&gt; spawnStub.restore())
&nbsp;
  return spawnStub
}
&nbsp;</pre></td></tr></table></pre>

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