static void Main(string[] args)
{
"Testing DBEngine Package".title('=');
WriteLine();
Write("\n --- Test DBElement<int,string> ---");
DBElement <int, string> elem1 = new DBElement <int, string>();
elem1.payload = "a payload";
Write(elem1.showElement <int, string>());
WriteLine();
DBElement <int, string> elem2 = new DBElement <int, string>("Darth Vader", "Evil Overlord");
elem2.payload = "The Empire strikes back!";
Write(elem2.showElement <int, string>());
WriteLine();
var elem3 = new DBElement <int, string>("Luke Skywalker", "Young HotShot");
elem3.children.AddRange(new List <int> {
1, 5, 23
});
elem3.payload = "X-Wing fighter in swamp - Oh oh!";
Write(elem3.showElement <int, string>());
WriteLine();
Write("\n --- Test DBEngine<int,DBElement<int,string>> ---");
int key = 0;
Func <int> keyGen = () => { ++key; return(key); }; // anonymous function to generate keys
DBEngine <int, DBElement <int, string> > db = new DBEngine <int, DBElement <int, string> >();
bool p1 = db.insert(keyGen(), elem1);
bool p2 = db.insert(keyGen(), elem2);
bool p3 = db.insert(keyGen(), elem3);
if (p1 && p2 && p3)
{
Write("\n all inserts succeeded");
}
else
{
Write("\n at least one insert failed");
}
db.show <int, DBElement <int, string>, string>();
WriteLine();
Write("\n --- Test DBElement<string,List<string>> ---");
DBElement <string, List <string> > newelem1 = new DBElement <string, List <string> >();
newelem1.name = "newelem1";
newelem1.descr = "test new type";
newelem1.payload = new List <string> {
"one", "two", "three"
};
Write(newelem1.showElement <string, List <string> >());
WriteLine();
Write("\n --- Test DBElement<string,List<string>> ---");
DBElement <string, List <string> > newerelem1 = new DBElement <string, List <string> >();
newerelem1.name = "newerelem1";
newerelem1.descr = "better formatting";
newerelem1.payload = new List <string> {
"alpha", "beta", "gamma"
};
newerelem1.payload.Add("delta");
newerelem1.payload.Add("epsilon");
Write(newerelem1.showElement <string, List <string>, string>());
WriteLine();
DBElement <string, List <string> > newerelem2 = new DBElement <string, List <string> >();
newerelem2.name = "newerelem2";
newerelem2.descr = "better formatting";
newerelem1.children.AddRange(new[] { "first", "second" });
newerelem2.payload = new List <string> {
"a", "b", "c"
};
newerelem2.payload.Add("d");
newerelem2.payload.Add("e");
Write(newerelem2.showElement <string, List <string>, string>());
WriteLine();
Write("\n --- Test DBEngine<string,DBElement<string,List<string>>> ---");
int seed = 0;
string skey = seed.ToString();
Func <string> skeyGen = () =>
{
++seed;
skey = "string" + seed.ToString();
skey = skey.GetHashCode().ToString();
return(skey);
};
DBEngine <string, DBElement <string, List <string> > > newdb = new DBEngine <string, DBElement <string, List <string> > >();
newdb.insert(skeyGen(), newerelem1);
newdb.insert(skeyGen(), newerelem2);
newdb.show <string, DBElement <string, List <string> >, List <string>, string>();
WriteLine();
"testing edits".title();
db.show <int, DBElement <int, string>, string>();
DBElement <int, string> editElement = new DBElement <int, string>();
db.getValue(1, out editElement);
editElement.showElement <int, string>();
editElement.name = "editedName";
editElement.descr = "editedDescription";
db.show <int, DBElement <int, string>, string>();
WriteLine();
Write("\n\n");
"testing removal".title();
db.show <int, DBElement <int, string>, string>();
DBElement <int, string> pay = new DBElement <int, string>();
db.remove(1, out pay);
Console.Write("\n\nRemoved element: {0}", pay.name);
WriteLine();
newdb.show <string, DBElement <string, List <string> >, List <string>, string>();
db.show <int, DBElement <int, string>, string>();
Write("\n\n");
}
void TestR3()
{
//----------< Demonstrating adding and removing of elements >-----------
"Demonstrating Requirement #3".title();
WriteLine();
"Adding <int, string> elements".title('-');
DBElement<int, string> elem = new DBElement<int, string>();
elem.name = "Element 1";
elem.descr = "Test Element (int, string)";
elem.timeStamp = DateTime.Now;
elem.children.AddRange(new List<int> { 1, 2, 3 });
elem.payload = "Element 1's payload. (string)";
WriteLine(elem.showElement());
bool p1 = db.insert(1, elem);
WriteLine();
DBElement<int, string> elem1 = new DBElement<int, string>();
elem1.name = "Element 2";
elem1.descr = "Again <int, string> but no children!";
elem1.timeStamp = DateTime.Now;
elem1.children.Clear();
elem1.payload = "Element 2's payload. (string)";
WriteLine(elem1.showElement());
bool p2 = db.insert(2, elem1);
WriteLine();
DBElement<int, string> elem2 = new DBElement<int, string>();
elem2.name = "Element 3";
elem2.descr = "Test Element <int, string>. Different timeStamp.";
elem2.children.AddRange(new List<int> { 1, 2, 3 });
elem2.timeStamp = DateTime.UtcNow;
elem2.payload = "Element 3's payload. (string)";
WriteLine(elem2.showElement());
WriteLine();
bool p3 = db.insert(3, elem2);
"Adding <string, List<string>> elements".title('-');
DBElement<string, List<string>> newelem = new DBElement<string, List<string>>();
newelem.name = "New elem";
newelem.descr = "Element 4. <string, List<string>>";
newelem.timeStamp = DateTime.Now;
newelem.children.AddRange(new List<string> { "one", "two", "three" });
newelem.payload = new List<string> { "one", "two", "three" };
Write(newelem.showElement<string, List<string>, string>());
bool p4 = dbLOS.insert("Four", newelem);
Console.WriteLine("\n\nInserting elements... ");
if (p1 && p2 && p3 && p4)
Console.WriteLine("All inserts succeeded");
else
Console.WriteLine("\n\nAt Least one insert failed");
"Database".title('-');
db.show<int, DBElement<int, string>, string>();
dbLOS.show<string, DBElement<string, List<string>>, List<string>, string>();
WriteLine();
"Removing elements".title();
DBElement<int, string> pay = new DBElement<int, string>();
db.remove(1, out pay);
Console.Write("\n\nRemoved element: {0}", pay.name);
WriteLine();
db.remove(2, out pay);
Console.Write("\n\nRemoved element: {0}", pay.name);
WriteLine();
db.remove(3, out pay);
Console.Write("\n\nRemoved element: {0}", pay.name);
WriteLine();
"Database".title();
db.show<int, DBElement<int, string>, string>();
dbLOS.show<string, DBElement<string, List<string>>, List<string>, string>();
WriteLine();
}
