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metamask-extension/app/scripts/controllers/ens/index.test.js

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import { strict as assert } from 'assert';
import sinon from 'sinon';
import EnsController from '.';
const ZERO_ADDRESS = '0x0000000000000000000000000000000000000000';
const ZERO_X_ERROR_ADDRESS = '0x';
describe('EnsController', function () {
let currentChainId;
let getCurrentChainId;
let onNetworkDidChange;
beforeEach(function () {
currentChainId = '0x5';
getCurrentChainId = () => currentChainId;
onNetworkDidChange = sinon.spy();
});
afterEach(function () {
sinon.restore();
});
describe('#constructor', function () {
it('should construct the controller given a provider and a network', async function () {
const ens = new EnsController({
provider: sinon.fake(),
getCurrentChainId,
onNetworkDidChange,
});
assert.ok(ens._ens);
});
it('should construct the controller given an existing ENS instance', async function () {
const ens = new EnsController({
ens: {},
getCurrentChainId,
onNetworkDidChange,
});
assert.ok(ens._ens);
});
});
describe('#reverseResolveName', function () {
it('should resolve to an ENS name', async function () {
const address = '0x8e5d75d60224ea0c33d0041e75de68b1c3cb6dd5';
const ens = new EnsController({
ens: {
reverse: sinon.stub().withArgs(address).returns('peaksignal.eth'),
lookup: sinon.stub().withArgs('peaksignal.eth').returns(address),
},
onNetworkDidChange,
getCurrentChainId,
});
const name = await ens.reverseResolveAddress(address);
assert.equal(name, 'peaksignal.eth');
});
it('should only resolve an ENS name once', async function () {
const address = '0x8e5d75d60224ea0c33d0041e75de68b1c3cb6dd5';
const reverse = sinon.stub().withArgs(address).returns('peaksignal.eth');
const lookup = sinon.stub().withArgs('peaksignal.eth').returns(address);
const ens = new EnsController({
ens: {
reverse,
lookup,
},
getCurrentChainId,
onNetworkDidChange,
});
assert.equal(await ens.reverseResolveAddress(address), 'peaksignal.eth');
assert.equal(await ens.reverseResolveAddress(address), 'peaksignal.eth');
assert.ok(lookup.calledOnce);
assert.ok(reverse.calledOnce);
});
it('should fail if the name is registered to a different address than the reverse-resolved', async function () {
const address = '0x8e5d75d60224ea0c33d0041e75de68b1c3cb6dd5';
const ens = new EnsController({
ens: {
reverse: sinon.stub().withArgs(address).returns('peaksignal.eth'),
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lookup: sinon.stub().withArgs('peaksignal.eth').returns('0x00'),
},
onNetworkDidChange,
getCurrentChainId,
});
const name = await ens.reverseResolveAddress(address);
assert.strictEqual(name, undefined);
});
it('should throw an error when the lookup resolves to the zero address', async function () {
const address = '0x8e5d75d60224ea0c33d0041e75de68b1c3cb6dd5';
const ens = new EnsController({
ens: {
reverse: sinon.stub().withArgs(address).returns('peaksignal.eth'),
lookup: sinon.stub().withArgs('peaksignal.eth').returns(ZERO_ADDRESS),
},
getCurrentChainId,
onNetworkDidChange,
});
try {
await ens.reverseResolveAddress(address);
assert.fail('#reverseResolveAddress did not throw');
} catch (e) {
assert.ok(e);
}
});
it('should throw an error the lookup resolves to the zero x address', async function () {
const address = '0x8e5d75d60224ea0c33d0041e75de68b1c3cb6dd5';
const ens = new EnsController({
ens: {
reverse: sinon.stub().withArgs(address).returns('peaksignal.eth'),
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lookup: sinon
.stub()
.withArgs('peaksignal.eth')
.returns(ZERO_X_ERROR_ADDRESS),
},
onNetworkDidChange,
getCurrentChainId,
});
try {
await ens.reverseResolveAddress(address);
assert.fail('#reverseResolveAddress did not throw');
} catch (e) {
assert.ok(e);
}
});
});
});