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metamask-extension/shared/modules/contract-utils.test.js

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const { readAddressAsContract } = require('./contract-utils');
describe('Contract Utils', () => {
it('checks is an address is a contract address or not', async () => {
let mockEthQuery = {
getCode: () => {
return '0xa';
},
};
const { isContractAddress } = await readAddressAsContract(
mockEthQuery,
'0x76B4aa9Fc4d351a0062c6af8d186DF959D564A84',
);
expect(isContractAddress).toStrictEqual(true);
mockEthQuery = {
getCode: () => {
return '0x';
},
};
const {
isContractAddress: isNotContractAddress,
} = await readAddressAsContract(
mockEthQuery,
'0x76B4aa9Fc4d351a0062c6af8d186DF959D564A84',
);
expect(isNotContractAddress).toStrictEqual(false);
});
});