var something = null;

TEST('return value', function()
{
    var fn_1 = function(){
    };

    assert( fn_1() === something );

    var fn_2 = function(){
        // Please write your answer here.
    };

    assert( fn_2() === 42 );
});


TEST('parameters', function()
{
    var something = null;

    var fn = function(a, b, c){
        // Please write your answer here.
    };

    assert( fn(1, 2, 3) === 2 );
    assert( fn(4, 5, 6) === 5 );

    assert( fn(7, 8) === something );

    assert( fn(9, 10, 11, 12) === something );

    assert( fn(13) === something );

    assert( fn() === something );
});


TEST('arguments', function()
{
    var something = null;

    // 1
    var fn_1 = function(){
        return arguments.length;
    };

    assert( fn_1() === 0 );
    assert( fn_1(0) === something );
    assert( fn_1(0, 0) === something );
    assert( fn_1(0, 0, 0) === something );


    // 2
    var fn_2 = function(i){
        return arguments[i];
    };

    assert( fn_2(0) === something );
    assert( fn_2(1, 1, 2) === something );
    assert( fn_2(2, 10, 11) === something );
});