test: cover synchronous connector throws

[ronag]

Ports the regressions from nodejs/undici PR nodejs#4834.

The lower fork already handles a synchronously throwing connector through its Promise-based connect path. These tests verify that repeated requests settle instead of hanging and that the client recovers once the connector stops throwing.

Validation so far:

• focused regression: 2/2 passing
• ESLint and git diff check passing

[Copilot]

Pull request overview

Adds Node.js-style regression coverage ensuring Client requests settle (don’t hang) when a custom connect implementation throws synchronously, and that the client can recover once the connector stops throwing.

Changes:

• Introduces a new node-test covering repeated request settlement when connect throws synchronously.
• Adds a recovery regression asserting subsequent requests succeed once connect stops throwing.

Suppressed comments (4)

test/node-test/client-connector-throw.js:17

• Use t.after(...) for server cleanup to match the established node-test pattern in this repo and to ensure the hook is registered on the current test instance.

  after(closeServerAsPromise(server))

test/node-test/client-connector-throw.js:25

• Use t.after(...) for client cleanup to match the established node-test pattern in this repo and to ensure the hook is registered on the current test instance.

    after(() => client.destroy())

test/node-test/client-connector-throw.js:48

• Use t.after(...) for server cleanup to match the established node-test pattern in this repo and to ensure the hook is registered on the current test instance.

  after(closeServerAsPromise(server))

test/node-test/client-connector-throw.js:64

• Use t.after(...) for client cleanup to match the established node-test pattern in this repo and to ensure the hook is registered on the current test instance.

    after(() => client.destroy())

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[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.