public void HasFeatureTest()
{
var ki = new LicenseKey()
{
Expires = DateTime.Today.AddDays(3),
F1 = true,
F2 = false,
F5 = true
};
bool result = ki.HasFeature(1)
.HasNotFeature(2)
.HasFeature(5)
.HasNotExpired()
.IsValid();
Assert.IsTrue(result);
}