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72 lines
2.7 KiB
JavaScript
72 lines
2.7 KiB
JavaScript
1 year ago
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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 ERC1820Implementer = artifacts.require('$ERC1820Implementer');
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contract('ERC1820Implementer', function (accounts) {
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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 ERC1820Implementer.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)).to.not.equal(
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ERC1820_ACCEPT_MAGIC,
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);
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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(implementee, this.interfaceA, this.implementer.address, {
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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)).to.equal(
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ERC1820_ACCEPT_MAGIC,
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);
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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)).to.not.equal(
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ERC1820_ACCEPT_MAGIC,
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);
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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)).to.not.equal(
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ERC1820_ACCEPT_MAGIC,
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);
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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(implementee, this.interfaceA, this.implementer.address, {
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from: implementee,
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});
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expect(await this.registry.getInterfaceImplementer(implementee, this.interfaceA)).to.equal(
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this.implementer.address,
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);
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});
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});
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});
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