envBytes

签名

function envBytes(bytes calldata key) external returns (bytes value);
function envBytes(bytes calldata key, bytes calldata delimiter) external returns (bytes[] memory values);

描述

读取环境变量作为 bytesbytes[]

提示

  • 对于数组,你可以使用 delimiter 参数指定用于分隔值的分隔符。

例子

单个值

使用环境变量 BYTES_VALUE=0x7109709ECfa91a80626fF3989D68f67F5b1DD12D

bytes memory key = "BYTES_VALUE"; bytes expected = hex"7109709ECfa91a80626fF3989D68f67F5b1DD12D"; bytes output = cheats.envBytes(key); assertEq(output, expected);

数组

使用环境变量 BYTES_VALUE=0x7109709ECfa91a80626fF3989D68f67F5b1DD12D,0x00

bytes memory key = "BYTES_VALUES"; bytes memory delimiter = ","; bytes[] memory expected = new bytes[](2); expected[0] = hex"7109709ECfa91a80626fF3989D68f67F5b1DD12D"; expected[1] = hex"00"; bytes[] memory output = cheats.envBytes(key, delimiter); for (uint i = 0; i < expected.length; ++i) { assert(keccak256(abi.encodePacked((output[i]))) == keccak256(abi.encodePacked((expected[i])))); }