mirror of
https://github.com/Xahau/xahau.js.git
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5a711afb7e
* Polyfill with "buffer" and "assert" for browser environments * Instead of relying on webpack to make this library browser compatible, we now use a buffer library that provides a polyfill when used in the browser
84 lines
2.9 KiB
JavaScript
84 lines
2.9 KiB
JavaScript
const { coreTypes } = require("../dist/types");
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const { Hash160, Hash256, AccountID, Currency } = coreTypes;
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const { Buffer } = require("buffer/");
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describe("Hash160", function () {
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test("has a static width member", function () {
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expect(Hash160.width).toBe(20);
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});
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test("inherited by subclasses", function () {
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expect(AccountID.width).toBe(20);
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expect(Currency.width).toBe(20);
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});
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test("can be compared against another", function () {
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const h1 = Hash160.from("1000000000000000000000000000000000000000");
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const h2 = Hash160.from("2000000000000000000000000000000000000000");
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const h3 = Hash160.from("0000000000000000000000000000000000000003");
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expect(h1.lt(h2)).toBe(true);
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expect(h3.lt(h2)).toBe(true);
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});
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test("throws when constructed from invalid hash length", () => {
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expect(() =>
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Hash160.from("10000000000000000000000000000000000000")
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).toThrow("Invalid Hash length 19");
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expect(() =>
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Hash160.from("100000000000000000000000000000000000000000")
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).toThrow("Invalid Hash length 21");
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});
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});
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describe("Hash256", function () {
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test("has a static width member", function () {
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expect(Hash256.width).toBe(32);
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});
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test("has a ZERO_256 member", function () {
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expect(Hash256.ZERO_256.toJSON()).toBe(
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"0000000000000000000000000000000000000000000000000000000000000000"
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);
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});
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test("supports getting the nibblet values at given positions", function () {
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const h = Hash256.from(
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"1359BD0000000000000000000000000000000000000000000000000000000000"
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);
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expect(h.nibblet(0)).toBe(0x1);
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expect(h.nibblet(1)).toBe(0x3);
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expect(h.nibblet(2)).toBe(0x5);
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expect(h.nibblet(3)).toBe(0x9);
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expect(h.nibblet(4)).toBe(0x0b);
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expect(h.nibblet(5)).toBe(0xd);
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});
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});
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describe("Currency", function () {
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test("Will have a null iso() for dodgy XRP ", function () {
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const bad = Currency.from("0000000000000000000000005852500000000000");
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expect(bad.iso()).toBeUndefined();
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expect(bad.isNative()).toBe(false);
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});
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test("Currency with lowercase letters decode to hex", () => {
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expect(Currency.from("xRp").toJSON()).toBe(
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"0000000000000000000000007852700000000000"
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);
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});
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test("Currency codes with symbols decode to hex", () => {
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expect(Currency.from("x|p").toJSON()).toBe(
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"000000000000000000000000787C700000000000"
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);
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});
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test("Currency codes with uppercase and 0-9 decode to ISO codes", () => {
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expect(Currency.from("X8P").toJSON()).toBe("X8P");
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expect(Currency.from("USD").toJSON()).toBe("USD");
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});
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test("can be constructed from a Buffer", function () {
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const xrp = new Currency(Buffer.alloc(20));
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expect(xrp.iso()).toBe("XRP");
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});
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test("throws on invalid reprs", function () {
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expect(() => Currency.from(Buffer.alloc(19))).toThrow();
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expect(() => Currency.from(1)).toThrow();
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expect(() =>
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Currency.from("00000000000000000000000000000000000000m")
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).toThrow();
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});
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});
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