public void poptestmethod1()
{
string strexpected;
string stractualresult = "Error in push-stack is empty";
int top_index = -1;
C565Appln_Testcases.Class1 obj = new C565Appln_Testcases.Class1();
strexpected = obj.pop(top_index);
Assert.AreEqual(strexpected, stractualresult);
}
public void poptestmethod2()
{
string strexpected;
string stractualresult;
int top_index = 2;
C565Appln_Testcases.Class1 obj = new C565Appln_Testcases.Class1();
strexpected = obj.pop(top_index);
stractualresult = Convert.ToString(--top_index);
Assert.AreEqual(strexpected, stractualresult);
}