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const { constants, expectRevert } = require('@openzeppelin/test-helpers');
const { expect } = require('chai');
const StringsMock = artifacts.require('StringsMock');
contract('Strings', function (accounts) {
beforeEach(async function () {
this.strings = await StringsMock.new();
});
describe('from uint256 - decimal format', function () {
it('converts 0', async function () {
expect(await this.strings.fromUint256(0)).to.equal('0');
});
it('converts a positive number', async function () {
expect(await this.strings.fromUint256(4132)).to.equal('4132');
});
it('converts MAX_UINT256', async function () {
expect(await this.strings.fromUint256(constants.MAX_UINT256)).to.equal(constants.MAX_UINT256.toString());
});
});
describe('from uint256 - hex format', function () {
it('converts 0', async function () {
expect(await this.strings.fromUint256Hex(0)).to.equal('0x00');
});
it('converts a positive number', async function () {
expect(await this.strings.fromUint256Hex(0x4132)).to.equal('0x4132');
});
it('converts MAX_UINT256', async function () {
expect(await this.strings.fromUint256Hex(constants.MAX_UINT256))
.to.equal(web3.utils.toHex(constants.MAX_UINT256));
});
});
describe('from uint256 - fixed hex format', function () {
it('converts a positive number (long)', async function () {
expect(await this.strings.fromUint256HexFixed(0x4132, 32))
.to.equal('0x0000000000000000000000000000000000000000000000000000000000004132');
});
it('converts a positive number (short)', async function () {
await expectRevert(
this.strings.fromUint256HexFixed(0x4132, 1),
'Strings: hex length insufficient',
);
});
it('converts MAX_UINT256', async function () {
expect(await this.strings.fromUint256HexFixed(constants.MAX_UINT256, 32))
.to.equal(web3.utils.toHex(constants.MAX_UINT256));
});
});
describe('from address - fixed hex format', function () {
it('converts a random address', async function () {
const addr = '0xa9036907dccae6a1e0033479b12e837e5cf5a02f';
expect(await this.strings.fromAddressHexFixed(addr)).to.equal(addr);
});
it('converts an address with leading zeros', async function () {
const addr = '0x0000e0ca771e21bd00057f54a68c30d400000000';
expect(await this.strings.fromAddressHexFixed(addr)).to.equal(addr);
});
});
});