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76 lines
2.2 KiB
76 lines
2.2 KiB
const { makeInterfaceId } = require('@openzeppelin/test-helpers');
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const { expect } = require('chai');
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const INTERFACES = {
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ERC165: [
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'supportsInterface(bytes4)',
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],
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ERC721: [
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'balanceOf(address)',
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'ownerOf(uint256)',
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'approve(address,uint256)',
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'getApproved(uint256)',
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'setApprovalForAll(address,bool)',
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'isApprovedForAll(address,address)',
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'transferFrom(address,address,uint256)',
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'safeTransferFrom(address,address,uint256)',
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'safeTransferFrom(address,address,uint256,bytes)',
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],
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ERC721Enumerable: [
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'totalSupply()',
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'tokenOfOwnerByIndex(address,uint256)',
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'tokenByIndex(uint256)',
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],
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ERC721Metadata: [
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'name()',
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'symbol()',
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'tokenURI(uint256)',
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],
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};
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const INTERFACE_IDS = {};
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const FN_SIGNATURES = {};
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for (const k of Object.getOwnPropertyNames(INTERFACES)) {
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INTERFACE_IDS[k] = makeInterfaceId.ERC165(INTERFACES[k]);
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for (const fnName of INTERFACES[k]) {
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// the interface id of a single function is equivalent to its function signature
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FN_SIGNATURES[fnName] = makeInterfaceId.ERC165([fnName]);
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}
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}
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function shouldSupportInterfaces (interfaces = []) {
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describe('Contract interface', function () {
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beforeEach(function () {
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this.contractUnderTest = this.mock || this.token;
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});
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for (const k of interfaces) {
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const interfaceId = INTERFACE_IDS[k];
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describe(k, function () {
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describe('ERC165\'s supportsInterface(bytes4)', function () {
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it('should use less than 30k gas', async function () {
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expect(await this.contractUnderTest.supportsInterface.estimateGas(interfaceId)).to.be.lte(30000);
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});
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it('should claim support', async function () {
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expect(await this.contractUnderTest.supportsInterface(interfaceId)).to.equal(true);
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});
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});
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for (const fnName of INTERFACES[k]) {
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const fnSig = FN_SIGNATURES[fnName];
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describe(fnName, function () {
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it('should be implemented', function () {
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expect(this.contractUnderTest.abi.filter(fn => fn.signature === fnSig).length).to.equal(1);
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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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}
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module.exports = {
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shouldSupportInterfaces,
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};
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