testmodlibs.sol

pragma solidity ^0.4.13;

library InputChecker {
    function isAddressZero(address addr) constant internal returns (bool) {
        return addr == 0;
    }
}


contract CheckInput {
    modifier addressNotZero(address addr) {
        if (InputChecker.isAddressZero(addr))
            revert();
        _;
    }
}


contract CheckInputTester is CheckInput {
    
    function testAddressNotZero(address addr) addressNotZero(addr) constant returns (bool) {
        return true;
    }
}


// Could just as well be done from web3 or any other contracts API
contract CheckInputTestRunner {
    
    address constant TEST_ADDRESS_ZERO = 0;
    address constant TEST_ADDRESS_NOT_ZERO = 0x1;
    
    CheckInputTester cit;
    
    function CheckInputTestRunner() {
        cit = new CheckInputTester();
    }
    
    function runIsAddressZeroTrueTest() constant returns (bool) {
        return InputChecker.isAddressZero(TEST_ADDRESS_ZERO);
    }
    
    
    function runIsAddressZeroFalseTest() constant returns (bool) {
        return !InputChecker.isAddressZero(TEST_ADDRESS_NOT_ZERO);
    }
    
    function runAddressNotZeroSuccessTest() constant returns (bool) {
        return cit.testAddressNotZero(TEST_ADDRESS_NOT_ZERO);
    }
    
    function runAddressNotZeroFailTest() constant returns (bool) {
        return cit.testAddressNotZero(TEST_ADDRESS_ZERO);
    }
}