waitForBatch.test.ts•3.21 kB
import { PrismaClientKnownRequestError } from '../core/errors/PrismaClientKnownRequestError'
import { waitForBatch } from './waitForBatch'
test('resolves when all promises successfully resolve', async () => {
const result = await waitForBatch([Promise.resolve(1), Promise.resolve(2), Promise.resolve(3)])
expect(result).toEqual([1, 2, 3])
})
test('works with empty array', async () => {
const result = await waitForBatch([])
expect(result).toEqual([])
})
test('returns results in order even if they resolve out of order', async () => {
const result = await waitForBatch([
Promise.resolve(1),
new Promise((resolve) => setTimeout(() => resolve(2), 200)),
Promise.resolve(3),
])
expect(result).toEqual([1, 2, 3])
})
test('rejects with error, which batchRequestIdx matches its position in batch', async () => {
const err1 = new PrismaClientKnownRequestError('one', { code: 'P1', clientVersion: '0.0.0', batchRequestIdx: 2 })
const err2 = new PrismaClientKnownRequestError('two', { code: 'P1', clientVersion: '0.0.0', batchRequestIdx: 1 })
const err3 = new PrismaClientKnownRequestError('three', { code: 'P1', clientVersion: '0.0.0', batchRequestIdx: 0 })
const result = waitForBatch([Promise.reject(err1), Promise.reject(err2), Promise.reject(err3)])
await expect(result).rejects.toBe(err2)
})
test('rejects with error, which batchRequestIdx matches its position in batch, even if it rejects later', async () => {
const err1 = new PrismaClientKnownRequestError('one', { code: 'P1', clientVersion: '0.0.0', batchRequestIdx: 2 })
const err2 = new PrismaClientKnownRequestError('two', { code: 'P1', clientVersion: '0.0.0', batchRequestIdx: 1 })
const err3 = new PrismaClientKnownRequestError('three', { code: 'P1', clientVersion: '0.0.0', batchRequestIdx: 0 })
const result = waitForBatch([
Promise.reject(err1),
new Promise((_, reject) => setTimeout(() => reject(err2), 200)),
Promise.reject(err3),
])
await expect(result).rejects.toBe(err2)
})
test('rejects with the first error if no batchRequestIdxes match position', async () => {
const err1 = new PrismaClientKnownRequestError('one', { code: 'P1', clientVersion: '0.0.0', batchRequestIdx: 1 })
const err2 = new PrismaClientKnownRequestError('two', { code: 'P1', clientVersion: '0.0.0', batchRequestIdx: 2 })
const err3 = new PrismaClientKnownRequestError('three', { code: 'P1', clientVersion: '0.0.0', batchRequestIdx: 0 })
const result = waitForBatch([
Promise.reject(err1),
new Promise((_, reject) => setTimeout(() => reject(err2), 200)),
Promise.reject(err3),
])
await expect(result).rejects.toBe(err1)
})
test('rejects with error if one of the promises rejects with non-batch error', async () => {
const error = new Error('nope')
const result = waitForBatch([Promise.resolve(1), Promise.reject(error), Promise.resolve(3)])
await expect(result).rejects.toBe(error)
})
test('rejects with error if one of the promises rejects with non-batch error, even if other promises never resolve', async () => {
const error = new Error('nope')
const result = waitForBatch([new Promise(() => {}), Promise.reject(error)])
await expect(result).rejects.toBe(error)
})