import assert from 'assert' import sinon from 'sinon' import ObservableStore from 'obs-store' import EnsController from '../../../../app/scripts/controllers/ens' const ZERO_ADDRESS = '0x0000000000000000000000000000000000000000' const ZERO_X_ERROR_ADDRESS = '0x' describe('EnsController', function () { describe('#constructor', function () { it('should construct the controller given a provider and a network', async function () { const currentNetworkId = '3' const networkStore = new ObservableStore(currentNetworkId) const ens = new EnsController({ provider: {}, networkStore, }) assert.ok(ens._ens) }) it('should construct the controller given an existing ENS instance', async function () { const networkStore = { subscribe: sinon.spy(), } const ens = new EnsController({ ens: {}, networkStore, }) assert.ok(ens._ens) }) }) describe('#reverseResolveName', function () { it('should resolve to an ENS name', async function () { const address = '0x8e5d75d60224ea0c33d0041e75de68b1c3cb6dd5' const networkStore = { subscribe: sinon.spy(), } const ens = new EnsController({ ens: { reverse: sinon.stub().withArgs(address).returns('peaksignal.eth'), lookup: sinon.stub().withArgs('peaksignal.eth').returns(address), }, networkStore, }) 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 networkStore = { subscribe: sinon.spy(), } const ens = new EnsController({ ens: { reverse, lookup, }, networkStore, }) 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 networkStore = { subscribe: sinon.spy(), } const ens = new EnsController({ ens: { reverse: sinon.stub().withArgs(address).returns('peaksignal.eth'), lookup: sinon.stub().withArgs('peaksignal.eth').returns('0xfoo'), }, networkStore, }) 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 networkStore = { subscribe: sinon.spy(), } const ens = new EnsController({ ens: { reverse: sinon.stub().withArgs(address).returns('peaksignal.eth'), lookup: sinon.stub().withArgs('peaksignal.eth').returns(ZERO_ADDRESS), }, networkStore, }) 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 networkStore = { subscribe: sinon.spy(), } const ens = new EnsController({ ens: { reverse: sinon.stub().withArgs(address).returns('peaksignal.eth'), lookup: sinon .stub() .withArgs('peaksignal.eth') .returns(ZERO_X_ERROR_ADDRESS), }, networkStore, }) try { await ens.reverseResolveAddress(address) assert.fail('#reverseResolveAddress did not throw') } catch (e) { assert.ok(e) } }) }) })