69 lines
2.7 KiB
JavaScript
69 lines
2.7 KiB
JavaScript
const { accounts, contract } = require('@openzeppelin/test-environment');
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const { expectRevert, singletons } = require('@openzeppelin/test-helpers');
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const { bufferToHex, keccakFromString } = require('ethereumjs-util');
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const { expect } = require('chai');
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const ERC1820ImplementerMock = contract.fromArtifact('ERC1820ImplementerMock');
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describe('ERC1820Implementer', function () {
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const [ registryFunder, implementee, other ] = accounts;
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const ERC1820_ACCEPT_MAGIC = bufferToHex(keccakFromString('ERC1820_ACCEPT_MAGIC'));
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beforeEach(async function () {
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this.implementer = await ERC1820ImplementerMock.new();
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this.registry = await singletons.ERC1820Registry(registryFunder);
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this.interfaceA = bufferToHex(keccakFromString('interfaceA'));
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this.interfaceB = bufferToHex(keccakFromString('interfaceB'));
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});
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context('with no registered interfaces', function () {
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it('returns false when interface implementation is queried', async function () {
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expect(await this.implementer.canImplementInterfaceForAddress(this.interfaceA, implementee))
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.to.not.equal(ERC1820_ACCEPT_MAGIC);
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});
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it('reverts when attempting to set as implementer in the registry', async function () {
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await expectRevert(
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this.registry.setInterfaceImplementer(
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implementee, this.interfaceA, this.implementer.address, { from: implementee }
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),
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'Does not implement the interface'
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);
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});
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});
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context('with registered interfaces', function () {
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beforeEach(async function () {
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await this.implementer.registerInterfaceForAddress(this.interfaceA, implementee);
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});
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it('returns true when interface implementation is queried', async function () {
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expect(await this.implementer.canImplementInterfaceForAddress(this.interfaceA, implementee))
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.to.equal(ERC1820_ACCEPT_MAGIC);
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});
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it('returns false when interface implementation for non-supported interfaces is queried', async function () {
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expect(await this.implementer.canImplementInterfaceForAddress(this.interfaceB, implementee))
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.to.not.equal(ERC1820_ACCEPT_MAGIC);
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});
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it('returns false when interface implementation for non-supported addresses is queried', async function () {
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expect(await this.implementer.canImplementInterfaceForAddress(this.interfaceA, other))
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.to.not.equal(ERC1820_ACCEPT_MAGIC);
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});
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it('can be set as an implementer for supported interfaces in the registry', async function () {
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await this.registry.setInterfaceImplementer(
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implementee, this.interfaceA, this.implementer.address, { from: implementee }
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);
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expect(await this.registry.getInterfaceImplementer(implementee, this.interfaceA))
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.to.equal(this.implementer.address);
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});
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});
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});
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