39 lines
1.2 KiB
TypeScript
39 lines
1.2 KiB
TypeScript
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import { describe, expect, test } from 'bun:test'
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import {
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decodeBase64,
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decodeBase64Text,
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encodeBase64,
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encodeBase64Text
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} from '@open-pencil/core/bytes'
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describe('Base64 byte helpers', () => {
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test('encode and decode empty and binary data', () => {
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expect(encodeBase64(new Uint8Array())).toBe('')
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const bytes = new Uint8Array([0, 1, 127, 128, 254, 255])
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expect(decodeBase64(encodeBase64(bytes))).toEqual(bytes)
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})
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test('encode and decode Unicode text as UTF-8', () => {
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const text = 'OpenPencil — Привет 🎨'
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expect(decodeBase64Text(encodeBase64Text(text))).toBe(text)
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})
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test('support URL-safe Base64', () => {
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const bytes = new Uint8Array([251, 255, 254])
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expect(encodeBase64(bytes, 'base64url')).toBe('-__-')
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expect(decodeBase64('-__-')).toEqual(bytes)
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})
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test('handle data larger than browser argument limits', () => {
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const bytes = Uint8Array.from({ length: 256 * 1024 }, (_, index) => index % 251)
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expect(decodeBase64(encodeBase64(bytes))).toEqual(bytes)
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})
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test('reject malformed Base64', () => {
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expect(() => decodeBase64('not%base64')).toThrow('Invalid Base64 string')
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expect(() => decodeBase64Text('%%%')).toThrow('Invalid Base64 string')
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})
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})
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