public void testOnlyContains()
{
clsCustomer aCustomer = new clsCustomer();
Assert.AreEqual(aCustomer.onlyContains("abacadaba", "abcd"), true);
Assert.AreEqual(aCustomer.onlyContains(";DROP *;execute;", "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"), false);
}