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58 lines
1.6 KiB
58 lines
1.6 KiB
const { makeInterfaceId } = require('../helpers/makeInterfaceId');
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const INTERFACE_IDS = {
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ERC165: makeInterfaceId([
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'supportsInterface(bytes4)',
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]),
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ERC721: makeInterfaceId([
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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: makeInterfaceId([
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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: makeInterfaceId([
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'name()',
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'symbol()',
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'tokenURI(uint256)',
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]),
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ERC721Exists: makeInterfaceId([
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'exists(uint256)',
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]),
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};
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function shouldSupportInterfaces (interfaces = []) {
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describe('ERC165\'s supportsInterface(bytes4)', function () {
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beforeEach(function () {
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this.thing = 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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it('should use less than 30k gas', async function () {
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const gasEstimate = await this.thing.supportsInterface.estimateGas(interfaceId);
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gasEstimate.should.be.lte(30000);
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});
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it('is supported', async function () {
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const isSupported = await this.thing.supportsInterface(interfaceId);
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isSupported.should.eq(true);
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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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