35 lines
1.7 KiB
TypeScript
35 lines
1.7 KiB
TypeScript
import { blockchainTests, constants, expect } from '@0x/contracts-test-utils';
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import { MethodAbi } from 'ethereum-types';
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import * as wrappers from '../../src/wrappers';
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// tslint:disable:no-string-literal
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blockchainTests('Selector collision test', env => {
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it('Function selectors do not collide', () => {
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const selectorToSignature: { [selector: string]: string } = {};
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selectorToSignature['bca8c7b5'] = 'executeCall(address,bytes)'; // legacy allowance target
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selectorToSignature['a9059cbb'] = 'transfer(address,uint256)'; // ERC20Token transfer
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selectorToSignature['23b872dd'] = 'transferFrom(address,address,uint256)'; // ERC20Token transferFrom
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for (const wrapper of Object.values(wrappers)) {
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if (typeof wrapper === 'function') {
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const contract = new wrapper(constants.NULL_ADDRESS, env.provider, env.txDefaults);
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contract.abi
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.filter(abiDef => abiDef.type === 'function')
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.map(method => {
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const methodName = (method as MethodAbi).name;
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const selector = contract.getSelector(methodName);
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const signature = contract.getFunctionSignature(methodName);
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if (selectorToSignature[selector]) {
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expect(
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signature,
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`Selectors collide: ${signature}, ${selectorToSignature[selector]}`,
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).to.equal(selectorToSignature[selector]);
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}
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selectorToSignature[selector] = signature;
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});
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}
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}
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});
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});
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