describe('Check', function () {
    const g1 = check.wrap(null);
    const g2 = check.wrap('hi');
    it('g1', function () {
        assert.ok(g1.isNull());
        assert.ok(!g1.not.isNull());
    });
    it('g2', function () {
        assert.ok(!g2.isNull());
        assert.ok(g2.not.isNull());
        assert.ok(g2.hasWordsCount(1));
    });
});