Function waitForHealth

packages/simdeck-test/src/index.ts:802–828

(
  endpoint: string,
  child: ChildProcess,
  output: () => string,
)

}

async function waitForHealth(
  endpoint: string,
  child: ChildProcess,
  output: () => string,
): Promise<void> {
  const deadline = Date.now() + 60_000;
  let lastError: unknown;
  while (Date.now() < deadline) {
    if (child.exitCode !== null) {
      throw new Error(
        `SimDeck isolated service exited with ${child.exitCode}.\n${output()}`,
      );
    }
    try {
      await requestJson(endpoint, "GET", "/api/health");
      return;
    } catch (error) {
      lastError = error;
      await new Promise((resolve) => setTimeout(resolve, 50));
    }
  }
  throw new Error(
    `Timed out waiting for isolated SimDeck service: ${
      lastError instanceof Error ? lastError.message : String(lastError)
    }\n${output()}`,
  );
}

function captureChildOutput(child: ChildProcess): () => string {
  const chunks: string[] = [];