簡單範常式式碼中的錯誤？

我正在玩松露，我在這裡有一個簡單的程序，我似乎無法開始工作……

contract MyContract {

 struct Test {
   bool testBool;
 }

 mapping (address => Test[]) public tests;

 function issueTest(address _owner) public {

     Test memory test;
     test.testBool = false;
     tests[_owner].push(test);
 }

 function setTestBool(address _owner, uint _index) public
   returns (bool sucess) {

   tests[_owner][_index].testBool = true;

   return tests[_owner][_index].testBool;
 }

 function getTestBool(address _owner, uint _index) public returns (bool testBool) {
   return tests[_owner][_index].testBool;
 }
}

在我的測試文件中，我有：

let myContract;
 var reciever = web3.eth.accounts[1];

 before(async() => {
   myContract = await MyContract.deployed();
 });
it("Test Bool", async() => {

   await myContract.issueTest.call(reciever);
   var sucess = await myContract.setTestBool.call(reciever, 0);
   assert.equal(sucess, true, "Test Bool was set.");

   var result = await myContract.getTestBool.call(reciever, 0);
   assert.equal(result, true, "Bool is true.");
 });

當我做松露測試時，我得到這個錯誤：

Error: Error: VM Exception while executing eth_call: invalid opcode

我認為問題出在 .call() 上。我不明白什麼電話做得很好。

任何幫助都會很棒謝謝！

如果您收到無效的操作碼錯誤，您很可能嘗試通過或處於不一致的狀態訪問 EVM。例如getTestBool，使用尚未設置的地址呼叫issueTest.

至於測試，對於松露，我認為使用 Promises 鏈會更乾淨。

var MyContract = artifacts.require("./MyContract.sol");

contract('MyContract', function(accounts) {
 var mainAccount = accounts[0];
 var nobody = accounts[1];
 var contract;

 it("Test Bool", function() {
   // Build the contract ...
   return MyContract.deployed().then(function(instance) {
     contract = instance;
   // ... then issue the test ...
     return contract.issueTest(mainAccount, {from: mainAccount});
   }).then(function() {
   // ... then set the bool ...
     return contract.setTestBool.call(mainAccount, 0, {from: mainAccount});
   }).then(function(result) {
   // ... then assert it was set. 
     assert.equal(true, result, "Did not set testBool to true");
     return contract.setTestBool.call(mainAccount, 0, {from: mainAccount});
      // no need for from because call does not change EVM state
     return contract.getTestBool.call(mainAccount, 0);
   }).then(function(result) {
     assert.equal(true, result, "testBool failed");
   });
 });
});

引用自：https://ethereum.stackexchange.com/questions/30228