import { beforeEach, expect, test, vi } from 'vitest'

import { publicClient } from '~test/src/utils.js'

import { getBlockNumber, getBlockNumberCache } from './getBlockNumber.js'

beforeEach(() => getBlockNumberCache(publicClient.uid).clear())

test('default', async () => {
	expect(await getBlockNumber(publicClient)).toBeDefined()
})

test('behavior: multiple invocations only called once', async () => {
	const request = vi.spyOn(publicClient, 'request')
	await Promise.all(
		Array.from({ length: 10 }, () => getBlockNumber(publicClient)),
	)
	expect(request).toBeCalledTimes(1)
})

test('behavior: caches', async () => {
	const request = vi.spyOn(publicClient, 'request')
	const a = await getBlockNumber(publicClient)
	const b = await getBlockNumber(publicClient)
	expect(a).toBe(b)
	expect(request).toBeCalledTimes(1)
})