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121 lines
4.2 KiB
121 lines
4.2 KiB
const { ethers } = require('hardhat');
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const { expect } = require('chai');
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const { loadFixture } = require('@nomicfoundation/hardhat-network-helpers');
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const { shouldSupportInterfaces } = require('../../../utils/introspection/SupportsInterface.behavior');
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const name = 'Non Fungible Token';
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const symbol = 'NFT';
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const baseURI = 'https://api.example.com/v1/';
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const otherBaseURI = 'https://api.example.com/v2/';
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const sampleUri = 'mock://mytoken';
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const tokenId = 1n;
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const nonExistentTokenId = 2n;
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async function fixture() {
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const [owner] = await ethers.getSigners();
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const token = await ethers.deployContract('$ERC721URIStorageMock', [name, symbol]);
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return { owner, token };
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}
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contract('ERC721URIStorage', function () {
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beforeEach(async function () {
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Object.assign(this, await loadFixture(fixture));
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});
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shouldSupportInterfaces(['0x49064906']);
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describe('token URI', function () {
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beforeEach(async function () {
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await this.token.$_mint(this.owner, tokenId);
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});
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it('it is empty by default', async function () {
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expect(await this.token.tokenURI(tokenId)).to.equal('');
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});
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it('reverts when queried for non existent token id', async function () {
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await expect(this.token.tokenURI(nonExistentTokenId))
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.to.be.revertedWithCustomError(this.token, 'ERC721NonexistentToken')
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.withArgs(nonExistentTokenId);
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});
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it('can be set for a token id', async function () {
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await this.token.$_setTokenURI(tokenId, sampleUri);
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expect(await this.token.tokenURI(tokenId)).to.equal(sampleUri);
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});
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it('setting the uri emits an event', async function () {
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await expect(this.token.$_setTokenURI(tokenId, sampleUri))
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.to.emit(this.token, 'MetadataUpdate')
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.withArgs(tokenId);
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});
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it('setting the uri for non existent token id is allowed', async function () {
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await expect(await this.token.$_setTokenURI(nonExistentTokenId, sampleUri))
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.to.emit(this.token, 'MetadataUpdate')
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.withArgs(nonExistentTokenId);
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// value will be accessible after mint
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await this.token.$_mint(this.owner, nonExistentTokenId);
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expect(await this.token.tokenURI(nonExistentTokenId)).to.equal(sampleUri);
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});
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it('base URI can be set', async function () {
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await this.token.setBaseURI(baseURI);
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expect(await this.token.$_baseURI()).to.equal(baseURI);
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});
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it('base URI is added as a prefix to the token URI', async function () {
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await this.token.setBaseURI(baseURI);
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await this.token.$_setTokenURI(tokenId, sampleUri);
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expect(await this.token.tokenURI(tokenId)).to.equal(baseURI + sampleUri);
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});
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it('token URI can be changed by changing the base URI', async function () {
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await this.token.setBaseURI(baseURI);
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await this.token.$_setTokenURI(tokenId, sampleUri);
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await this.token.setBaseURI(otherBaseURI);
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expect(await this.token.tokenURI(tokenId)).to.equal(otherBaseURI + sampleUri);
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});
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it('tokenId is appended to base URI for tokens with no URI', async function () {
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await this.token.setBaseURI(baseURI);
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expect(await this.token.tokenURI(tokenId)).to.equal(baseURI + tokenId);
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});
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it('tokens without URI can be burnt ', async function () {
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await this.token.$_burn(tokenId);
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await expect(this.token.tokenURI(tokenId))
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.to.be.revertedWithCustomError(this.token, 'ERC721NonexistentToken')
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.withArgs(tokenId);
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});
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it('tokens with URI can be burnt ', async function () {
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await this.token.$_setTokenURI(tokenId, sampleUri);
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await this.token.$_burn(tokenId);
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await expect(this.token.tokenURI(tokenId))
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.to.be.revertedWithCustomError(this.token, 'ERC721NonexistentToken')
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.withArgs(tokenId);
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});
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it('tokens URI is kept if token is burnt and reminted ', async function () {
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await this.token.$_setTokenURI(tokenId, sampleUri);
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await this.token.$_burn(tokenId);
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await expect(this.token.tokenURI(tokenId))
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.to.be.revertedWithCustomError(this.token, 'ERC721NonexistentToken')
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.withArgs(tokenId);
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await this.token.$_mint(this.owner, tokenId);
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expect(await this.token.tokenURI(tokenId)).to.equal(sampleUri);
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});
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});
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});
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