@backstage/backend-test-utils/dist/util/waitForReady.cjs.js

Test helpers library for Backstage backends

'use strict';

var errors = require('@backstage/errors');

async function waitForReady(probe, label, timeoutMs = 3e4) {
  const startTime = Date.now();
  let lastError;
  let attempts = 0;
  for (; ; ) {
    attempts += 1;
    try {
      if (await probe()) {
        return;
      }
    } catch (e) {
      lastError = e;
    }
    if (Date.now() - startTime > timeoutMs) {
      throw new Error(
        `Timed out waiting for ${label} to be ready for connections, ${attempts} attempts, ${lastError ? `last error was ${errors.stringifyError(lastError)}` : "(no errors thrown)"}`
      );
    }
    await new Promise((resolve) => setTimeout(resolve, 100));
  }
}

exports.waitForReady = waitForReady;
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