当我运行松露测试调用时出错，我跟踪了官方松露商店文档的文档。

Question

chittiError: CompileError: Error parsing /Users/rahul/pet-shop-tutorial/test/TestAdoption.sol: ParsedContract.sol:10:1: ParserError: Expected pragma, import directive or contract/interface/library definition.
function testUserCanAdoptPet() public {
^------^
Compilation failed. See above.
    at async.whilst.error (/usr/local/lib/node_modules/truffle/build/webpack:/packages/truffle-compile/profiler.js:369:1)
    at /usr/local/lib/node_modules/truffle/build/webpack:/~/async/dist/async.js:969:1
    at next (/usr/local/lib/node_modules/truffle/build/webpack:/~/async/dist/async.js:5222:1)
    at Promise.all.then.results (/usr/local/lib/node_modules/truffle/build/webpack:/packages/truffle-compile/profiler.js:351:1)
Truffle v5.0.7 (core: 5.0.7)
Node v10.15.3

Answer 1

我看到了混乱。本教程要求您将该方法添加到本教程中先前创建的契约中。因此，在这个步骤中，您的所有文件都应该如下所示：

pragma solidity ^0.5.0;

import "truffle/Assert.sol";
import "truffle/DeployedAddresses.sol";
import "../contracts/Adoption.sol";

contract TestAdoption {
 // The address of the adoption contract to be tested
 Adoption adoption = Adoption(DeployedAddresses.Adoption());

 // The id of the pet that will be used for testing
 uint expectedPetId = 8;

 //The expected owner of adopted pet is this contract
 address expectedAdopter = address(this);

 // Testing the adopt() function
 function testUserCanAdoptPet() public {
   uint returnedId = adoption.adopt(expectedPetId);

   Assert.equal(returnedId, expectedPetId, "Adoption of the expected pet should match what is returned.");
 }
}