@include test-module('_property-of') {
    @include test('should return a function that returns the value of the property') {
        $map: (a: 1, b: 2, c: 3);
        $function: _property-of($map);
        @include assert-equal(_exec($function, a), 1);
    }
    @include test('should work with map') {
        $map: ( 'a': 3, 'b': 1, 'c': 2 );
        $foo: _map(('a', 'c'), _property-of($map));

        @include assert-equal($foo, (3 2));
    }
}