@include test-module('_escape') {
    $escaped: '&<>"'`\/';
    $unescaped: '&<>"' + "'`/";

    $escaped: $escaped + $escaped;
    $unescaped: $unescaped + $unescaped;

    @include test('should escape values') {
        $actual: _escape($unescaped);
        $expected: $escaped;

        @include assert-equal($actual, $expected);
    }

    @include test('should not escape the forward slash character') {
        $actual: _escape('/');
        $expected: '/';

        @include assert-equal($actual, $expected);
    }

    @include test('should handle strings with nothing to escape') {
        $actual: _escape('abc');
        $expected: 'abc';

        @include assert-equal($actual, $expected);
    }

    @include test('should escape the same characters unescaped by _unescape') {
        $actual: _escape(_unescape($escaped));
        $expected: $escaped;

        @include assert-equal($actual, $expected);
    }
}