71 lines
1.2 KiB
JavaScript
71 lines
1.2 KiB
JavaScript
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'use strict'
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const test = require('tape')
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const SparseArray = require('../')
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const max = 100
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let arr
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test('allows creation', (t) => {
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arr = new SparseArray()
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t.end()
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})
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test('allows pushing', (t) => {
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for(let i = 0; i < max; i++) {
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const pos = arr.push(i.toString())
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t.equal(pos, i + 1)
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}
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t.end()
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})
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test('has length', (t) => {
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t.equal(arr.length, 100)
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t.end()
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})
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test('can iterate', (t) => {
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let next = 0
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arr.forEach((elem, index, arr) => {
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t.equal(elem, next.toString())
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t.equal(index, next)
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t.equal(arr, arr)
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next ++
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})
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t.equal(next, max)
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t.end()
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})
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test('can map', (t) => {
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let next = 0
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const result = arr.map((elem, index, arr) => {
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t.equal(elem, next.toString())
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t.equal(index, next)
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t.equal(arr, arr)
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next ++
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return Number(elem) + 1
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})
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t.equal(next, max)
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t.equal(result.length, arr.length)
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next = 0
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result.forEach((elem) => {
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t.equal(elem, next + 1)
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next ++
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})
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t.equal(next, max)
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t.end()
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})
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test('can reduce', (t) => {
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let next = 0
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arr.reduce((acc, elem, index) => {
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t.equal(elem, next.toString())
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t.equal(index, next)
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next ++
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return acc + Number(elem)
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}, 0)
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t.equal(next, max)
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t.end()
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})
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