packages/types/src/generic/AccountIndex.spec.ts
// Copyright 2017-2024 @polkadot/types authors & contributors
// SPDX-License-Identifier: Apache-2.0
/* eslint-disable jest/expect-expect */
/// <reference types="@polkadot/dev-test/globals.d.ts" />
import { BN } from '@polkadot/util';
import { TypeRegistry } from '../create/index.js';
import { GenericAccountIndex as AccountIndex } from './index.js';
describe('AccountIndex', (): void => {
const registry = new TypeRegistry();
it('creates a BN representation', (): void => {
expect(
registry.createType('AccountIndex', new Uint8Array([17, 18, 19, 20])).toNumber()
).toEqual(336794129);
});
it('creates from BigInt', (): void => {
expect(
registry.createType('AccountIndex', 336794129n).toNumber()
).toEqual(336794129);
});
it('creates a BN representation (from ss-58)', (): void => {
expect(
registry.createType('AccountIndex', 'Mwz15xP2').toNumber()
).toEqual(336794129);
});
it('constructs 2-byte from number', (): void => {
expect(
registry.createType('AccountIndex', 256 * 1).toString()
).toEqual('25GUyv');
});
it('constructs from number', (): void => {
expect(
registry.createType('AccountIndex', new BN(336794129)).toString()
).toEqual('Mwz15xP2');
});
it('compares ss-58 values', (): void => {
expect(registry.createType('AccountIndex', 256 * 1).eq('25GUyv')).toBe(true);
});
it('compares numbers', (): void => {
expect(registry.createType('AccountIndex', '118r').eq(256 * 1)).toBe(true);
});
describe('calcLength', (): void => {
const testLength = (value: number, length: number): void => {
expect(AccountIndex.calcLength(value)).toEqual(length);
};
it('returns 1 for <= 0xef', (): void => {
testLength(0xef, 1);
});
it('returns 2 for > 0xef', (): void => {
testLength(0xf0, 2);
});
it('returns 4 bytes for 32-bit inputs', (): void => {
testLength(0xffeeddcc, 4);
});
it('returns 8 bytes for larger inputs', (): void => {
testLength(0x122334455, 8);
});
});
});