public void SubStrSafeWorks()
{
Assert.AreEqual("A", MHString.SubstringSafe("ABCDEFGH", 0, 1), "t1");
Assert.AreEqual(string.Empty, MHString.SubstringSafe("ABCDEFGH", -1, 1), "t2");
Assert.AreEqual(string.Empty, MHString.SubstringSafe("ABCDEFGH", 99, 0), "t3");
Assert.AreEqual(string.Empty, MHString.SubstringSafe("ABCDEFGH", 99, 99), "t4");
Assert.AreEqual("ABCDEFGH", MHString.SubstringSafe("ABCDEFGH", 0, 99), "t5");
Assert.AreEqual(string.Empty, MHString.SubstringSafe("", 0, 99), "t6");
Assert.AreEqual(string.Empty, MHString.SubstringSafe("", 1, 1), "t7");
}
public void SubStrSafeRaisesException()
{
string x = MHString.SubstringSafe("ABCDEFGH", 0, -1);
}