Testcase using NUnit - nunit

Question

Folks, I am new to writing testcases for the methods. Here I have a InsertMethod for which I want to write testcase using NUnit testing framework. Help me in writing the testcase for the method below :
public bool insertUser(String FirstName, String LastName)
{
bool result = false;
SqlConnection myconn = new SqlConnection();
SqlCommand mycmd = new SqlCommand();
try
{
myconn.ConnectionString = "Data Source=BABU-PC;Initial Catalog=contacts;Integrated Security=True";
myconn.Open();
mycmd.Connection = myconn;
mycmd.CommandText = "InsertUser";
mycmd.CommandType = CommandType.StoredProcedure;
SqlParameter param1 = new SqlParameter();
param1.ParameterName = "#FirstName";
param1.DbType = DbType.AnsiString;
param1.Size = 8000;
param1.Value = FirstName;
mycmd.Parameters.Add(param1);
SqlParameter param2 = new SqlParameter();
param2.ParameterName = "#LastName";
param2.DbType = DbType.AnsiString;
param2.Size = 8000;
param2.Value = LastName;
mycmd.Parameters.Add(param2);
int i = 0;
i = mycmd.ExecuteNonQuery();
if (i > 0)
{
result = true;
}
else
{
result = false;
}
}
catch (Exception err)
{
Console.WriteLine(err.Message.ToString());
return false;
}
finally
{
mycmd.Dispose();
myconn.Close();
myconn = null;
}
return result;
}
Thanks
SBM

Answer 1

Cellfish is right. Don't think about the code, think about what the method is supposed to do. Without even looking at your code, I'd do this kind of test:
1- Preparation
lastName = "LastName"
firstName = "FirstName"
Then try to fetch a user with firstName and lastName and make sure that it's not already there.
2- Execute
InsertUser(firstName, lastName)
3- Check
Make sure InsertUser return true
Try to fetch a user with firstName and lastName and make sure that it is there with the correct values.