text: const _contract = require('@truffle/contract');
  const erc20Json = require('@uniswap/v2-periphery/build/ERC20.json');
  const ERC20 = _contract(erc20Json);
  ERC20.setProvider(web3._provider);
  
  const gasPrice = 10000000000;
  
  contract("UniswapV2Pair", async (accounts) => {
  
      it('deploy ERC20', async () => {
          const tokenA = await ERC20.new('10000000000000000000000', { from: accounts[0], gasPrice: gasPrice });
          const tokenB = await ERC20.new('10000000000000000000000', { from: accounts[0], gasPrice: gasPrice });
      });
  
  });
  