openzeppelin-contracts/test/utils/structs/EnumerableMap.test.js

const { BN, constants } = require('@openzeppelin/test-helpers');

const AddressToUintMapMock = artifacts.require('AddressToUintMapMock');
const UintToAddressMapMock = artifacts.require('UintToAddressMapMock');
const Bytes32ToBytes32MapMock = artifacts.require('Bytes32ToBytes32MapMock');

const { shouldBehaveLikeMap } = require('./EnumerableMap.behavior');

contract('EnumerableMap', function (accounts) {
  const [ accountA, accountB, accountC ] = accounts;

  const keyA = new BN('7891');
  const keyB = new BN('451');
  const keyC = new BN('9592328');

  const bytesA = '0xdeadbeef'.padEnd(66, '0');
  const bytesB = '0x0123456789'.padEnd(66, '0');
  const bytesC = '0x42424242'.padEnd(66, '0');

  // AddressToUintMap
  describe('AddressToUintMap', function () {
    beforeEach(async function () {
      this.map = await AddressToUintMapMock.new();
    });

    shouldBehaveLikeMap(
      [accountA, accountB, accountC],
      [keyA, keyB, keyC],
      new BN('0'),
    );
  });

  // UintToAddressMap
  describe('UintToAddressMap', function () {
    beforeEach(async function () {
      this.map = await UintToAddressMapMock.new();
    });

    shouldBehaveLikeMap(
      [keyA, keyB, keyC],
      [accountA, accountB, accountC],
      constants.ZERO_ADDRESS,
    );
  });

  // Bytes32ToBytes32Map
  describe('Bytes32ToBytes32Map', function () {
    beforeEach(async function () {
      this.map = await Bytes32ToBytes32MapMock.new();
    });

    shouldBehaveLikeMap(
      [keyA, keyB, keyC].map(k => ('0x' + k.toString(16)).padEnd(66, '0')),
      [bytesA, bytesB, bytesC],
      constants.ZERO_BYTES32,
    );
  });
});