public void In_StringIsNotInArray_False()
        {
            const string value = "K3uvain";
            var values = new[] { "KEu", "Vai", "Keuvain" };

            Assert.That(value.In(values), Is.False);
        }
        public void In_StringIsInArray_True()
        {
            const string value = "Keuvain";
            var values = new[] { "KEu", "Vai", "Keuvain" };

            Assert.That(value.In(values), Is.True);
        }