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@0x:contracts-exchange-libs Added unit tests to exchange-libs

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This commit is contained in:
Alex Towle
2019-08-09 17:17:56 -07:00
parent e3aa76cd09
commit c318b849fe
6 changed files with 364 additions and 19 deletions
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45
contracts/utils/test/lib_eip712.ts
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@@ -41,25 +41,6 @@ async function testHashEIP712DomainAsync(
expect(actualHash).to.be.eq(hexConcat(expectedHash));
}
/**
* Tests a specific instance of EIP712 message hashing.
* @param lib The LibEIP712 contract to call.
* @param domainHash The hash of the EIP712 domain of this instance.
* @param hashStruct The hash of the struct of this instance.
*/
async function testHashEIP712MessageAsync(
lib: TestLibEIP712Contract,
domainHash: string,
hashStruct: string,
): Promise<void> {
const input = '0x1901'.concat(
domainHash.slice(2, domainHash.length).concat(hashStruct.slice(2, hashStruct.length)),
);
const expectedHash = '0x'.concat(ethUtil.sha3(input).toString('hex'));
const actualHash = await lib.externalHashEIP712Message.callAsync(domainHash, hashStruct);
expect(actualHash).to.be.eq(expectedHash);
}
describe('LibEIP712', () => {
let lib: TestLibEIP712Contract;
@@ -73,6 +54,32 @@ describe('LibEIP712', () => {
await blockchainLifecycle.revertAsync();
});
/**
* Tests a specific instance of EIP712 message hashing.
* @param lib The LibEIP712 contract to call.
* @param domainHash The hash of the EIP712 domain of this instance.
* @param hashStruct The hash of the struct of this instance.
*/
async function testHashEIP712MessageAsync(
lib: TestLibEIP712Contract,
domainHash: string,
hashStruct: string,
): Promise<void> {
// Remove the hex prefix from the domain hash and the hash struct
const unprefixedDomainHash = domainHash.slice(2, domainHash.length);
const unprefixedHashStruct = hashStruct.slice(2, hashStruct.length);
// Hash the provided input to get the expected hash
const input = '0x1901'.concat(unprefixedDomainHash.concat(unprefixedHashStruct));
const expectedHash = '0x'.concat(ethUtil.sha3(input).toString('hex'));
// Get the actual hash by calling the smart contract
const actualHash = await lib.externalHashEIP712Message.callAsync(domainHash, hashStruct);
// Verify that the actual hash matches the expected hash
expect(actualHash).to.be.eq(expectedHash);
}
describe('_hashEIP712Domain', async () => {
it('should correctly hash empty input', async () => {
await testHashEIP712DomainAsync(lib, '', '', 0, constants.NULL_ADDRESS);