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ERC721Consecutive.test.js
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ERC721Consecutive.test.js
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const { constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers');
const { expect } = require('chai');
const ERC721ConsecutiveMock = artifacts.require('$ERC721ConsecutiveMock');
const ERC721ConsecutiveEnumerableMock = artifacts.require('$ERC721ConsecutiveEnumerableMock');
const ERC721ConsecutiveNoConstructorMintMock = artifacts.require('$ERC721ConsecutiveNoConstructorMintMock');
contract('ERC721Consecutive', function (accounts) {
const [user1, user2, user3, receiver] = accounts;
const name = 'Non Fungible Token';
const symbol = 'NFT';
const batches = [
{ receiver: user1, amount: 0 },
{ receiver: user1, amount: 1 },
{ receiver: user1, amount: 2 },
{ receiver: user2, amount: 5 },
{ receiver: user3, amount: 0 },
{ receiver: user1, amount: 7 },
];
const delegates = [user1, user3];
describe('with valid batches', function () {
beforeEach(async function () {
this.token = await ERC721ConsecutiveMock.new(
name,
symbol,
delegates,
batches.map(({ receiver }) => receiver),
batches.map(({ amount }) => amount),
);
});
describe('minting during construction', function () {
it('events are emitted at construction', async function () {
let first = 0;
for (const batch of batches) {
if (batch.amount > 0) {
await expectEvent.inConstruction(this.token, 'ConsecutiveTransfer', {
fromTokenId: web3.utils.toBN(first),
toTokenId: web3.utils.toBN(first + batch.amount - 1),
fromAddress: constants.ZERO_ADDRESS,
toAddress: batch.receiver,
});
} else {
// expectEvent.notEmitted.inConstruction only looks at event name, and doesn't check the parameters
}
first += batch.amount;
}
});
it('ownership is set', async function () {
const owners = batches.flatMap(({ receiver, amount }) => Array(amount).fill(receiver));
for (const tokenId in owners) {
expect(await this.token.ownerOf(tokenId)).to.be.equal(owners[tokenId]);
}
});
it('balance & voting power are set', async function () {
for (const account of accounts) {
const balance = batches
.filter(({ receiver }) => receiver === account)
.map(({ amount }) => amount)
.reduce((a, b) => a + b, 0);
expect(await this.token.balanceOf(account)).to.be.bignumber.equal(web3.utils.toBN(balance));
// If not delegated at construction, check before + do delegation
if (!delegates.includes(account)) {
expect(await this.token.getVotes(account)).to.be.bignumber.equal(web3.utils.toBN(0));
await this.token.delegate(account, { from: account });
}
// At this point all accounts should have delegated
expect(await this.token.getVotes(account)).to.be.bignumber.equal(web3.utils.toBN(balance));
}
});
});
describe('minting after construction', function () {
it('consecutive minting is not possible after construction', async function () {
await expectRevert(
this.token.$_mintConsecutive(user1, 10),
'ERC721Consecutive: batch minting restricted to constructor',
);
});
it('simple minting is possible after construction', async function () {
const tokenId = batches.reduce((acc, { amount }) => acc + amount, 0);
expect(await this.token.$_exists(tokenId)).to.be.equal(false);
expectEvent(await this.token.$_mint(user1, tokenId), 'Transfer', {
from: constants.ZERO_ADDRESS,
to: user1,
tokenId: tokenId.toString(),
});
});
it('cannot mint a token that has been batched minted', async function () {
const tokenId = batches.reduce((acc, { amount }) => acc + amount, 0) - 1;
expect(await this.token.$_exists(tokenId)).to.be.equal(true);
await expectRevert(this.token.$_mint(user1, tokenId), 'ERC721: token already minted');
});
});
describe('ERC721 behavior', function () {
it('core takes over ownership on transfer', async function () {
await this.token.transferFrom(user1, receiver, 1, { from: user1 });
expect(await this.token.ownerOf(1)).to.be.equal(receiver);
});
it('tokens can be burned and re-minted #1', async function () {
expectEvent(await this.token.$_burn(1, { from: user1 }), 'Transfer', {
from: user1,
to: constants.ZERO_ADDRESS,
tokenId: '1',
});
await expectRevert(this.token.ownerOf(1), 'ERC721: invalid token ID');
expectEvent(await this.token.$_mint(user2, 1), 'Transfer', {
from: constants.ZERO_ADDRESS,
to: user2,
tokenId: '1',
});
expect(await this.token.ownerOf(1)).to.be.equal(user2);
});
it('tokens can be burned and re-minted #2', async function () {
const tokenId = batches.reduce((acc, { amount }) => acc.addn(amount), web3.utils.toBN(0));
expect(await this.token.$_exists(tokenId)).to.be.equal(false);
await expectRevert(this.token.ownerOf(tokenId), 'ERC721: invalid token ID');
// mint
await this.token.$_mint(user1, tokenId);
expect(await this.token.$_exists(tokenId)).to.be.equal(true);
expect(await this.token.ownerOf(tokenId), user1);
// burn
expectEvent(await this.token.$_burn(tokenId, { from: user1 }), 'Transfer', {
from: user1,
to: constants.ZERO_ADDRESS,
tokenId,
});
expect(await this.token.$_exists(tokenId)).to.be.equal(false);
await expectRevert(this.token.ownerOf(tokenId), 'ERC721: invalid token ID');
// re-mint
expectEvent(await this.token.$_mint(user2, tokenId), 'Transfer', {
from: constants.ZERO_ADDRESS,
to: user2,
tokenId,
});
expect(await this.token.$_exists(tokenId)).to.be.equal(true);
expect(await this.token.ownerOf(tokenId), user2);
});
});
});
describe('invalid use', function () {
it('cannot mint a batch larger than 5000', async function () {
await expectRevert(
ERC721ConsecutiveMock.new(name, symbol, [], [user1], ['5001']),
'ERC721Consecutive: batch too large',
);
});
it('cannot use single minting during construction', async function () {
await expectRevert(
ERC721ConsecutiveNoConstructorMintMock.new(name, symbol),
"ERC721Consecutive: can't mint during construction",
);
});
it('cannot use single minting during construction', async function () {
await expectRevert(
ERC721ConsecutiveNoConstructorMintMock.new(name, symbol),
"ERC721Consecutive: can't mint during construction",
);
});
it('consecutive mint not compatible with enumerability', async function () {
await expectRevert(
ERC721ConsecutiveEnumerableMock.new(
name,
symbol,
batches.map(({ receiver }) => receiver),
batches.map(({ amount }) => amount),
),
'ERC721Enumerable: consecutive transfers not supported',
);
});
});
});