const test = require('node:test');
const assert = require('node:assert/strict');

const { waitForCondition } = require('../erp_condition_wait');

test('waitForCondition returns as soon as the condition is true', async () => {
  let checks = 0;
  let waits = 0;
  let now = 0;

  const result = await waitForCondition(
    async () => {
      checks += 1;
      return checks === 3 ? 'ready' : false;
    },
    {
      description: 'sample condition',
      timeoutMs: 5000,
      intervalMs: 100,
      now: () => now,
      wait: async (ms) => {
        waits += 1;
        now += ms;
      },
    }
  );

  assert.equal(result, 'ready');
  assert.equal(checks, 3);
  assert.equal(waits, 2);
});

test('waitForCondition times out with the last condition error', async () => {
  let now = 0;

  await assert.rejects(
    () => waitForCondition(
      async () => {
        throw new Error('not ready yet');
      },
      {
        description: 'never-ready condition',
        timeoutMs: 250,
        intervalMs: 100,
        now: () => now,
        wait: async (ms) => {
          now += ms;
        },
      }
    ),
    /Timed out waiting for never-ready condition after 250ms: not ready yet/
  );
});