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525 lines
20 KiB
525 lines
20 KiB
const { shouldSupportInterfaces } = require('../../introspection/SupportsInterface.behavior');
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const { assertRevert } = require('../../helpers/assertRevert');
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const { decodeLogs } = require('../../helpers/decodeLogs');
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const { sendTransaction } = require('../../helpers/sendTransaction');
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const ERC721Receiver = artifacts.require('ERC721ReceiverMock.sol');
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const BigNumber = web3.BigNumber;
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require('chai')
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.use(require('chai-bignumber')(BigNumber))
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.should();
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function shouldBehaveLikeERC721 (
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creator,
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minter,
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[owner, approved, anotherApproved, operator, anyone]
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) {
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const firstTokenId = 1;
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const secondTokenId = 2;
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const unknownTokenId = 3;
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const ZERO_ADDRESS = '0x0000000000000000000000000000000000000000';
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const RECEIVER_MAGIC_VALUE = '0x150b7a02';
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describe('like an ERC721', function () {
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beforeEach(async function () {
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await this.token.mint(owner, firstTokenId, { from: minter });
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await this.token.mint(owner, secondTokenId, { from: minter });
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this.toWhom = anyone; // default to anyone for toWhom in context-dependent tests
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});
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describe('balanceOf', function () {
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context('when the given address owns some tokens', function () {
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it('returns the amount of tokens owned by the given address', async function () {
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(await this.token.balanceOf(owner)).should.be.bignumber.equal(2);
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});
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});
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context('when the given address does not own any tokens', function () {
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it('returns 0', async function () {
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(await this.token.balanceOf(anyone)).should.be.bignumber.equal(0);
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});
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});
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context('when querying the zero address', function () {
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it('throws', async function () {
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await assertRevert(this.token.balanceOf(0));
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});
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});
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});
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describe('ownerOf', function () {
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context('when the given token ID was tracked by this token', function () {
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const tokenId = firstTokenId;
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it('returns the owner of the given token ID', async function () {
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(await this.token.ownerOf(tokenId)).should.be.equal(owner);
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});
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});
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context('when the given token ID was not tracked by this token', function () {
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const tokenId = unknownTokenId;
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it('reverts', async function () {
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await assertRevert(this.token.ownerOf(tokenId));
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});
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});
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});
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describe('transfers', function () {
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const tokenId = firstTokenId;
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const data = '0x42';
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let logs = null;
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beforeEach(async function () {
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await this.token.approve(approved, tokenId, { from: owner });
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await this.token.setApprovalForAll(operator, true, { from: owner });
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});
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const transferWasSuccessful = function ({ owner, tokenId, approved }) {
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it('transfers the ownership of the given token ID to the given address', async function () {
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(await this.token.ownerOf(tokenId)).should.be.equal(this.toWhom);
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});
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it('clears the approval for the token ID', async function () {
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(await this.token.getApproved(tokenId)).should.be.equal(ZERO_ADDRESS);
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});
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if (approved) {
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it('emit only a transfer event', async function () {
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logs.length.should.be.equal(1);
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logs[0].event.should.be.equal('Transfer');
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logs[0].args.from.should.be.equal(owner);
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logs[0].args.to.should.be.equal(this.toWhom);
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logs[0].args.tokenId.should.be.bignumber.equal(tokenId);
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});
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} else {
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it('emits only a transfer event', async function () {
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logs.length.should.be.equal(1);
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logs[0].event.should.be.equal('Transfer');
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logs[0].args.from.should.be.equal(owner);
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logs[0].args.to.should.be.equal(this.toWhom);
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logs[0].args.tokenId.should.be.bignumber.equal(tokenId);
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});
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}
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it('adjusts owners balances', async function () {
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(await this.token.balanceOf(owner)).should.be.bignumber.equal(1);
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});
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it('adjusts owners tokens by index', async function () {
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if (!this.token.tokenOfOwnerByIndex) return;
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(await this.token.tokenOfOwnerByIndex(this.toWhom, 0)).toNumber().should.be.equal(tokenId);
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(await this.token.tokenOfOwnerByIndex(owner, 0)).toNumber().should.not.be.equal(tokenId);
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});
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};
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const shouldTransferTokensByUsers = function (transferFunction) {
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context('when called by the owner', function () {
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beforeEach(async function () {
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({ logs } = await transferFunction.call(this, owner, this.toWhom, tokenId, { from: owner }));
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});
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transferWasSuccessful({ owner, tokenId, approved });
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});
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context('when called by the approved individual', function () {
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beforeEach(async function () {
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({ logs } = await transferFunction.call(this, owner, this.toWhom, tokenId, { from: approved }));
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});
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transferWasSuccessful({ owner, tokenId, approved });
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});
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context('when called by the operator', function () {
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beforeEach(async function () {
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({ logs } = await transferFunction.call(this, owner, this.toWhom, tokenId, { from: operator }));
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});
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transferWasSuccessful({ owner, tokenId, approved });
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});
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context('when called by the owner without an approved user', function () {
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beforeEach(async function () {
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await this.token.approve(ZERO_ADDRESS, tokenId, { from: owner });
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({ logs } = await transferFunction.call(this, owner, this.toWhom, tokenId, { from: operator }));
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});
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transferWasSuccessful({ owner, tokenId, approved: null });
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});
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context('when sent to the owner', function () {
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beforeEach(async function () {
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({ logs } = await transferFunction.call(this, owner, owner, tokenId, { from: owner }));
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});
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it('keeps ownership of the token', async function () {
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(await this.token.ownerOf(tokenId)).should.be.equal(owner);
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});
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it('clears the approval for the token ID', async function () {
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(await this.token.getApproved(tokenId)).should.be.equal(ZERO_ADDRESS);
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});
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it('emits only a transfer event', async function () {
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logs.length.should.be.equal(1);
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logs[0].event.should.be.equal('Transfer');
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logs[0].args.from.should.be.equal(owner);
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logs[0].args.to.should.be.equal(owner);
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logs[0].args.tokenId.should.be.bignumber.equal(tokenId);
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});
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it('keeps the owner balance', async function () {
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(await this.token.balanceOf(owner)).should.be.bignumber.equal(2);
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});
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it('keeps same tokens by index', async function () {
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if (!this.token.tokenOfOwnerByIndex) return;
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const tokensListed = await Promise.all(
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[0, 1].map(i => this.token.tokenOfOwnerByIndex(owner, i))
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);
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tokensListed.map(t => t.toNumber()).should.have.members([firstTokenId, secondTokenId]);
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});
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});
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context('when the address of the previous owner is incorrect', function () {
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it('reverts', async function () {
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await assertRevert(transferFunction.call(this, anyone, anyone, tokenId, { from: owner })
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);
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});
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});
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context('when the sender is not authorized for the token id', function () {
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it('reverts', async function () {
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await assertRevert(transferFunction.call(this, owner, anyone, tokenId, { from: anyone })
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);
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});
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});
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context('when the given token ID does not exist', function () {
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it('reverts', async function () {
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await assertRevert(transferFunction.call(this, owner, anyone, unknownTokenId, { from: owner })
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);
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});
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});
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context('when the address to transfer the token to is the zero address', function () {
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it('reverts', async function () {
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await assertRevert(transferFunction.call(this, owner, ZERO_ADDRESS, tokenId, { from: owner }));
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});
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});
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};
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describe('via transferFrom', function () {
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shouldTransferTokensByUsers(function (from, to, tokenId, opts) {
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return this.token.transferFrom(from, to, tokenId, opts);
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});
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});
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describe('via safeTransferFrom', function () {
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const safeTransferFromWithData = function (from, to, tokenId, opts) {
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return sendTransaction(
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this.token,
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'safeTransferFrom',
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'address,address,uint256,bytes',
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[from, to, tokenId, data],
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opts
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);
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};
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const safeTransferFromWithoutData = function (from, to, tokenId, opts) {
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return this.token.safeTransferFrom(from, to, tokenId, opts);
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};
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const shouldTransferSafely = function (transferFun, data) {
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describe('to a user account', function () {
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shouldTransferTokensByUsers(transferFun);
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});
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describe('to a valid receiver contract', function () {
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beforeEach(async function () {
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this.receiver = await ERC721Receiver.new(RECEIVER_MAGIC_VALUE, false);
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this.toWhom = this.receiver.address;
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});
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shouldTransferTokensByUsers(transferFun);
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it('should call onERC721Received', async function () {
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const result = await transferFun.call(this, owner, this.receiver.address, tokenId, { from: owner });
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result.receipt.logs.length.should.be.equal(2);
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const [log] = decodeLogs([result.receipt.logs[1]], ERC721Receiver, this.receiver.address);
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log.event.should.be.equal('Received');
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log.args.operator.should.be.equal(owner);
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log.args.from.should.be.equal(owner);
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log.args.tokenId.toNumber().should.be.equal(tokenId);
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log.args.data.should.be.equal(data);
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});
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it('should call onERC721Received from approved', async function () {
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const result = await transferFun.call(this, owner, this.receiver.address, tokenId, {
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from: approved,
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});
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result.receipt.logs.length.should.be.equal(2);
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const [log] = decodeLogs(
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[result.receipt.logs[1]],
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ERC721Receiver,
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this.receiver.address
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);
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log.event.should.be.equal('Received');
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log.args.operator.should.be.equal(approved);
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log.args.from.should.be.equal(owner);
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log.args.tokenId.toNumber().should.be.equal(tokenId);
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log.args.data.should.be.equal(data);
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});
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describe('with an invalid token id', function () {
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it('reverts', async function () {
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await assertRevert(
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transferFun.call(
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this,
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owner,
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this.receiver.address,
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unknownTokenId,
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{ from: owner },
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)
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);
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});
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});
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});
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};
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describe('with data', function () {
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shouldTransferSafely(safeTransferFromWithData, data);
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});
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describe('without data', function () {
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shouldTransferSafely(safeTransferFromWithoutData, '0x');
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});
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describe('to a receiver contract returning unexpected value', function () {
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it('reverts', async function () {
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const invalidReceiver = await ERC721Receiver.new('0x42', false);
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await assertRevert(this.token.safeTransferFrom(owner, invalidReceiver.address, tokenId, { from: owner }));
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});
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});
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describe('to a receiver contract that throws', function () {
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it('reverts', async function () {
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const invalidReceiver = await ERC721Receiver.new(RECEIVER_MAGIC_VALUE, true);
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await assertRevert(this.token.safeTransferFrom(owner, invalidReceiver.address, tokenId, { from: owner }));
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});
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});
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describe('to a contract that does not implement the required function', function () {
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it('reverts', async function () {
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const invalidReceiver = this.token;
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await assertRevert(this.token.safeTransferFrom(owner, invalidReceiver.address, tokenId, { from: owner }));
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});
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});
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});
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});
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describe('approve', function () {
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const tokenId = firstTokenId;
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let logs = null;
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const itClearsApproval = function () {
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it('clears approval for the token', async function () {
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(await this.token.getApproved(tokenId)).should.be.equal(ZERO_ADDRESS);
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});
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};
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const itApproves = function (address) {
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it('sets the approval for the target address', async function () {
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(await this.token.getApproved(tokenId)).should.be.equal(address);
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});
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};
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const itEmitsApprovalEvent = function (address) {
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it('emits an approval event', async function () {
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logs.length.should.be.equal(1);
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logs[0].event.should.be.equal('Approval');
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logs[0].args.owner.should.be.equal(owner);
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logs[0].args.approved.should.be.equal(address);
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logs[0].args.tokenId.should.be.bignumber.equal(tokenId);
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});
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};
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context('when clearing approval', function () {
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context('when there was no prior approval', function () {
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beforeEach(async function () {
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({ logs } = await this.token.approve(ZERO_ADDRESS, tokenId, { from: owner }));
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});
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itClearsApproval();
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itEmitsApprovalEvent(ZERO_ADDRESS);
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});
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context('when there was a prior approval', function () {
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beforeEach(async function () {
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await this.token.approve(approved, tokenId, { from: owner });
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({ logs } = await this.token.approve(ZERO_ADDRESS, tokenId, { from: owner }));
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});
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itClearsApproval();
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itEmitsApprovalEvent(ZERO_ADDRESS);
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});
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});
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context('when approving a non-zero address', function () {
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context('when there was no prior approval', function () {
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beforeEach(async function () {
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({ logs } = await this.token.approve(approved, tokenId, { from: owner }));
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});
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itApproves(approved);
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itEmitsApprovalEvent(approved);
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});
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context('when there was a prior approval to the same address', function () {
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beforeEach(async function () {
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await this.token.approve(approved, tokenId, { from: owner });
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({ logs } = await this.token.approve(approved, tokenId, { from: owner }));
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});
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itApproves(approved);
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itEmitsApprovalEvent(approved);
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});
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context('when there was a prior approval to a different address', function () {
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beforeEach(async function () {
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await this.token.approve(anotherApproved, tokenId, { from: owner });
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({ logs } = await this.token.approve(anotherApproved, tokenId, { from: owner }));
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});
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itApproves(anotherApproved);
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itEmitsApprovalEvent(anotherApproved);
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});
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});
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context('when the address that receives the approval is the owner', function () {
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it('reverts', async function () {
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await assertRevert(
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this.token.approve(owner, tokenId, { from: owner })
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);
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});
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});
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context('when the sender does not own the given token ID', function () {
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it('reverts', async function () {
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await assertRevert(this.token.approve(approved, tokenId, { from: anyone }));
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});
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});
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context('when the sender is approved for the given token ID', function () {
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it('reverts', async function () {
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await this.token.approve(approved, tokenId, { from: owner });
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await assertRevert(this.token.approve(anotherApproved, tokenId, { from: approved }));
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});
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});
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context('when the sender is an operator', function () {
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beforeEach(async function () {
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await this.token.setApprovalForAll(operator, true, { from: owner });
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({ logs } = await this.token.approve(approved, tokenId, { from: operator }));
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});
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itApproves(approved);
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itEmitsApprovalEvent(approved);
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});
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context('when the given token ID does not exist', function () {
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it('reverts', async function () {
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await assertRevert(this.token.approve(approved, unknownTokenId, { from: operator }));
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});
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});
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});
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describe('setApprovalForAll', function () {
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context('when the operator willing to approve is not the owner', function () {
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context('when there is no operator approval set by the sender', function () {
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it('approves the operator', async function () {
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await this.token.setApprovalForAll(operator, true, { from: owner });
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(await this.token.isApprovedForAll(owner, operator)).should.equal(true);
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});
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it('emits an approval event', async function () {
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const { logs } = await this.token.setApprovalForAll(operator, true, { from: owner });
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logs.length.should.be.equal(1);
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logs[0].event.should.be.equal('ApprovalForAll');
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logs[0].args.owner.should.be.equal(owner);
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logs[0].args.operator.should.be.equal(operator);
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logs[0].args.approved.should.equal(true);
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});
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});
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context('when the operator was set as not approved', function () {
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beforeEach(async function () {
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await this.token.setApprovalForAll(operator, false, { from: owner });
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});
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it('approves the operator', async function () {
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await this.token.setApprovalForAll(operator, true, { from: owner });
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(await this.token.isApprovedForAll(owner, operator)).should.equal(true);
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});
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it('emits an approval event', async function () {
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const { logs } = await this.token.setApprovalForAll(operator, true, { from: owner });
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logs.length.should.be.equal(1);
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logs[0].event.should.be.equal('ApprovalForAll');
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logs[0].args.owner.should.be.equal(owner);
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logs[0].args.operator.should.be.equal(operator);
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logs[0].args.approved.should.equal(true);
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});
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it('can unset the operator approval', async function () {
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await this.token.setApprovalForAll(operator, false, { from: owner });
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(await this.token.isApprovedForAll(owner, operator)).should.equal(false);
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});
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});
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context('when the operator was already approved', function () {
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beforeEach(async function () {
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await this.token.setApprovalForAll(operator, true, { from: owner });
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});
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it('keeps the approval to the given address', async function () {
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await this.token.setApprovalForAll(operator, true, { from: owner });
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(await this.token.isApprovedForAll(owner, operator)).should.equal(true);
|
|
});
|
|
|
|
it('emits an approval event', async function () {
|
|
const { logs } = await this.token.setApprovalForAll(operator, true, { from: owner });
|
|
|
|
logs.length.should.be.equal(1);
|
|
logs[0].event.should.be.equal('ApprovalForAll');
|
|
logs[0].args.owner.should.be.equal(owner);
|
|
logs[0].args.operator.should.be.equal(operator);
|
|
logs[0].args.approved.should.equal(true);
|
|
});
|
|
});
|
|
});
|
|
|
|
context('when the operator is the owner', function () {
|
|
it('reverts', async function () {
|
|
await assertRevert(this.token.setApprovalForAll(owner, true, { from: owner }));
|
|
});
|
|
});
|
|
});
|
|
|
|
shouldSupportInterfaces([
|
|
'ERC165',
|
|
'ERC721',
|
|
]);
|
|
});
|
|
}
|
|
|
|
module.exports = {
|
|
shouldBehaveLikeERC721,
|
|
};
|
|
|