Function waitForCondition

frontend/src/core/islands/__tests__/test-utils.tsx:112–124

(
  condition: () => boolean,
  timeout = 1000,
  interval = 50,
)

 * Waits for a condition to be true with timeout
 */
export async function waitForCondition(
  condition: () => boolean,
  timeout = 1000,
  interval = 50,
): Promise<void> {
  const startTime = Date.now();
  while (!condition()) {
    if (Date.now() - startTime > timeout) {
      throw new Error("Timeout waiting for condition");
    }
    await new Promise((resolve) => setTimeout(resolve, interval));
  }
}

/**
 * Waits for an async function to not throw