batch-iterable/test/every.test.js

An abstraction to work with iterables of asyncIterables

import test from "node:test"
import assert from "node:assert"
import { BatchIterable } from "../index.js"

test("every checks if all elements satisfy a condition", async () => {
  const array = new BatchIterable([[2, 4], [6]])
  const isEven = (x) => x % 2 === 0

  const result = await array.every(isEven)

  assert.strictEqual(result, true, "All elements should satisfy the condition")
})

test("every checks if all elements satisfy a condition, and fails", async () => {
  const array = new BatchIterable([[2, 5], [6]])
  const isEven = (x) => x % 2 === 0

  const result = await array.every(isEven)

  assert.strictEqual(
    result,
    false,
    "One element does not satisfy the condition",
  )
})