fix remaining tests

contracts/mocks/PausableCrowdsaleImpl.sol

@@ -6,5 +6,6 @@ import "../crowdsale/validation/PausableCrowdsale.sol";
 contract PausableCrowdsaleImpl is PausableCrowdsale {
     constructor (uint256 _rate, address payable _wallet, ERC20 _token) public {
       Crowdsale.initialize(_rate, _wallet, _token);
+      PausableCrowdsale.initialize(msg.sender);
     }
 }

contracts/mocks/WhitelistedRoleMock.sol

@@ -3,6 +3,10 @@ pragma solidity ^0.5.0;
 import "../access/roles/WhitelistedRole.sol";
 
 contract WhitelistedRoleMock is WhitelistedRole {
+    constructor() public {
+      WhitelistedRole._initialize(msg.sender);
+    }
+
     function onlyWhitelistedMock() public view onlyWhitelisted {
         // solhint-disable-previous-line no-empty-blocks
     }