¿Por qué no recibo '5 aprobados, 1 reprobado' después de realizar la prueba de trufa?

Después de ejecutar truffle test, aparece el siguiente error inesperado:

Zanes-iMac:riskxtoken zanemassey$ truffle test
Using network 'development'.

Compiling ./contracts/Migrations.sol...
Compiling ./contracts/RiskxToken.sol...
Compiling ./contracts/RiskxTokenSale.sol...

Compilation warnings encountered:

/Users/zanemassey/Desktop/riskxtoken/contracts/Migrations.sol:11:3: Warning: Defining constructors as functions with the same name as the contract is deprecated. Use "constructor(...) { ... }" instead.
  function Migrations() public {
  ^ (Relevant source part starts here and spans across multiple lines).
,/Users/zanemassey/Desktop/riskxtoken/contracts/RiskxToken.sol:24:5: Warning: Defining constructors as functions with the same name as the contract is deprecated. Use "constructor(...) { ... }" instead.
    function RiskxToken (uint256 _initialSupply) public {
    ^ (Relevant source part starts here and spans across multiple lines).
,/Users/zanemassey/Desktop/riskxtoken/contracts/RiskxTokenSale.sol:9:2: Warning: Defining constructors as functions with the same name as the contract is deprecated. Use "constructor(...) { ... }" instead.
    function RiskxTokenSale(RiskxToken _tokenContract) public {
 ^ (Relevant source part starts here and spans across multiple lines).
,/Users/zanemassey/Desktop/riskxtoken/contracts/RiskxToken.sol:35:9: Warning: Invoking events without "emit" prefix is deprecated.
        Transfer(msg.sender, _to, _value);
        ^-------------------------------^
,/Users/zanemassey/Desktop/riskxtoken/contracts/RiskxToken.sol:43:9: Warning: Invoking events without "emit" prefix is deprecated.
        Approval(msg.sender, _spender, _value);
        ^------------------------------------^
,/Users/zanemassey/Desktop/riskxtoken/contracts/RiskxToken.sol:57:9: Warning: Invoking events without "emit" prefix is deprecated.
        Transfer(_from, _to, _value);
        ^--------------------------^

Error: RiskxTokenSale contract constructor expected 1 arguments, received 0
    at /usr/local/lib/node_modules/truffle/build/webpack:/packages/truffle-contract/contract.js:390:1
    at new Promise (<anonymous>)
    at /usr/local/lib/node_modules/truffle/build/webpack:/packages/truffle-contract/contract.js:374:1
    at process._tickCallback (internal/process/next_tick.js:68:7)
Zanes-iMac:riskxtoken zanemassey$ truffle test
Using network 'development'.

Compiling ./contracts/Migrations.sol...
Compiling ./contracts/RiskxToken.sol...
Compiling ./contracts/RiskxTokenSale.sol...

Compilation warnings encountered:

/Users/zanemassey/Desktop/riskxtoken/contracts/Migrations.sol:11:3: Warning: Defining constructors as functions with the same name as the contract is deprecated. Use "constructor(...) { ... }" instead.
  function Migrations() public {
  ^ (Relevant source part starts here and spans across multiple lines).
,/Users/zanemassey/Desktop/riskxtoken/contracts/RiskxToken.sol:24:5: Warning: Defining constructors as functions with the same name as the contract is deprecated. Use "constructor(...) { ... }" instead.
    function RiskxToken (uint256 _initialSupply) public {
    ^ (Relevant source part starts here and spans across multiple lines).
,/Users/zanemassey/Desktop/riskxtoken/contracts/RiskxTokenSale.sol:9:2: Warning: Defining constructors as functions with the same name as the contract is deprecated. Use "constructor(...) { ... }" instead.
    function RiskxTokenSale(RiskxToken _tokenContract) public {
 ^ (Relevant source part starts here and spans across multiple lines).
,/Users/zanemassey/Desktop/riskxtoken/contracts/RiskxToken.sol:35:9: Warning: Invoking events without "emit" prefix is deprecated.
        Transfer(msg.sender, _to, _value);
        ^-------------------------------^
,/Users/zanemassey/Desktop/riskxtoken/contracts/RiskxToken.sol:43:9: Warning: Invoking events without "emit" prefix is deprecated.
        Approval(msg.sender, _spender, _value);
        ^------------------------------------^
,/Users/zanemassey/Desktop/riskxtoken/contracts/RiskxToken.sol:57:9: Warning: Invoking events without "emit" prefix is deprecated.
        Transfer(_from, _to, _value);
        ^--------------------------^

Error: RiskxTokenSale contract constructor expected 1 arguments, received 0
    at /usr/local/lib/node_modules/truffle/build/webpack:/packages/truffle-contract/contract.js:390:1
    at new Promise (<anonymous>)
    at /usr/local/lib/node_modules/truffle/build/webpack:/packages/truffle-contract/contract.js:374:1
    at process._tickCallback (internal/process/next_tick.js:68:7)

Esperaba obtener 5 pasando 1 fallando y que el contrato se inicializara con los valores correctos + un error de afirmación para el contrato de venta colectiva:

pragma solidity ^0.4.23;

import "./RiskxToken.sol";

contract RiskxTokenSale {
    address admin;
    RiskxToken public tokenContract;

    function RiskxTokenSale(RiskxToken _tokenContract) public {
        admin = msg.sender;
        tokenContract = _tokenContract; 
        // Token contract
        // Token Price
    }
}

este es mi contrato token:

pragma solidity ^0.4.23;

contract RiskxToken {
    string  public name = "Riskx Token";
    string  public symbol = "RIX";
    string  public standard = "Riskx Token v1.0";
    uint256 public totalSupply;

    event Transfer(
        address indexed _from,
        address indexed _to,
        uint256 _value
    );

    event Approval(
        address indexed _owner,
        address indexed _spender,
        uint256 _value
    );

    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) public allowance;

    function RiskxToken (uint256 _initialSupply) public {
        balanceOf[msg.sender] = _initialSupply;
        totalSupply = _initialSupply;
    }

    function transfer(address _to, uint256 _value) public returns (bool success) {
        require(balanceOf[msg.sender] >= _value);

        balanceOf[msg.sender] -= _value;
        balanceOf[_to] += _value;

        Transfer(msg.sender, _to, _value);

        return true;
    }

    function approve(address _spender, uint256 _value) public returns (bool success) {
        allowance[msg.sender][_spender] = _value;

        Approval(msg.sender, _spender, _value);

        return true;
    }

    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
        require(_value <= balanceOf[_from]);
        require(_value <= allowance[_from][msg.sender]);

        balanceOf[_from] -= _value;
        balanceOf[_to] += _value;

        allowance[_from][msg.sender] -= _value;

        Transfer(_from, _to, _value);

        return true;
    }
}

No estoy tratando de emitir nada en esta etapa, solo estoy tratando de que la prueba falle. ¿Alguien sabe por qué ocurre esto?