public void StrStrTest()
{
var testFunc = new ArrayQ();
Assert.AreEqual(-1, testFunc.StrStr(string.Empty, "ll"));
Assert.AreEqual(0, testFunc.StrStr("hello", string.Empty));
Assert.AreEqual(0, testFunc.StrStr(string.Empty, string.Empty));
Assert.AreEqual(2, testFunc.StrStr("hello", "ll"));
Assert.AreEqual(-1, testFunc.StrStr("aaaaa", "bba"));
Assert.AreEqual(0, testFunc.StrStr("aaaaa", "aaa"));
Assert.AreEqual(1, testFunc.StrStr("baaaaa", "aaa"));
}