public void TestCollection()
{
HashedList h1 = new HashedList();
HashedList h2 = new HashedList();
Cursor i = h1.GetCursor(-1);
// Add a few unkeyed rows.
h1.Add("Row 1");
h1.Add("Row 2");
h1.Add("Row 3");
Assertion.AssertEquals("Adding unkeyed rows", 3, h1.Count);
Assertion.AssertEquals("Has row 1", true, h1.ContainsValue("Row 1"));
Assertion.AssertEquals("Has row 2", true, h1.ContainsValue("Row 2"));
h1.RemoveValue("Row 2");
Assertion.AssertEquals("Has row 1", true, h1.ContainsValue("Row 1"));
Assertion.AssertEquals("Has row 2", false, h1.ContainsValue("Row 2"));
Assertion.AssertEquals("Delete unkeyed rows", 2, h1.Count);
h1.Clear();
Assertion.AssertEquals("Cleared unkeyed rows", 0, h1.Count);
// Add few Keyed rows.
h1.Add("key 1", "Row 1");
h1.Add("key 2", "Row 2");
h1.Add("key 3", "Row 3");
Assertion.AssertEquals("Adding keyed rows", 3, h1.Count);
Assertion.AssertEquals("Has Row 1", true, h1.ContainsValue("Row 1"));
Assertion.AssertEquals("Has key 1", true, h1.ContainsKey("key 1"));
Assertion.AssertEquals("Has Row 2", true, h1.ContainsValue("Row 2"));
Assertion.AssertEquals("Has key 2", true, h1.ContainsKey("key 2"));
Assertion.AssertEquals("Has Row 3", true, h1.ContainsValue("Row 3"));
Assertion.AssertEquals("Has key 3", true, h1.ContainsKey("key 3"));
h1.RemoveKey("key 2");
Assertion.AssertEquals("Delete keyed row", 2, h1.Count);
Assertion.AssertEquals("Has Row 1", true, h1.ContainsValue("Row 1"));
Assertion.AssertEquals("Has key 1", true, h1.ContainsKey("key 1"));
Assertion.AssertEquals("Has Row 2", false, h1.ContainsValue("Row 2"));
Assertion.AssertEquals("Has key 2", false, h1.ContainsKey("key 2"));
Assertion.AssertEquals("Has Row 3", true, h1.ContainsValue("Row 3"));
Assertion.AssertEquals("Has key 3", true, h1.ContainsKey("key 3"));
h1.Clear();
Assertion.AssertEquals("Clear keyed rows", 0, h1.Count);
h1.Add("key 1", "Row 1");
h1.Add("key 2", "Row 2");
h1.Add("key 3", "Row 3");
Assertion.AssertEquals("Re-Adding keyed rows", 3, h1.Count);
Assertion.AssertEquals("Has Row 2", true, h1.ContainsValue("Row 2"));
Assertion.AssertEquals("Has key 2", true, h1.ContainsKey("key 2"));
h2.Add("key 4", "Row 4");
h2.Add("key 5", "Row 5");
Assertion.AssertEquals("containsAll(beforeAdd)", false, h1.ContainsAll(h2));
h1.AddAll(h2);
Assertion.AssertEquals("AddAll()", 5, h1.Count);
Assertion.AssertEquals("ContainsAll(afterAdd)", true, h1.ContainsAll(h2));
Assertion.AssertEquals("has row 4", true, h1.ContainsValue("Row 4"));
h1.RemoveValue("Row 4");
Assertion.AssertEquals("dropped row 4", false, h1.ContainsValue("Row 4"));
Assertion.AssertEquals("ContainsAll(afterDrop)", false, h1.ContainsAll(h2));
Assertion.AssertEquals("Empty(false)", false, h1.Empty);
h1.RemoveValue("Row 1");
h1.RemoveValue("Row 2");
h1.RemoveValue("Row 3");
h1.RemoveValue("Row 5");
Assertion.AssertEquals("isEmpty(true)", true, h1.Empty);
h1.Add("Row 1");
h1.Add("Row 2");
h1.Add("Row 3");
h1.AddAll(h2);
Assertion.AssertEquals("Adding back", 5, h1.Count);
h1.RemoveAll(h2);
Assertion.AssertEquals("removeAll()", 3, h1.Count);
h1.AddAll(h2);
Assertion.AssertEquals("Adding back again", 5, h1.Count);
h1.RetainAll(h2);
Assertion.AssertEquals("retainAll()", 2, h1.Count);
}
public void TestHashedList()
{
HashedList h1 = new HashedList();
HashedList h2 = new HashedList();
Cursor i = h1.GetCursor(-1);
Cursor j;
// Add a few unkeyed rows.
h1.Add("Row 1");
h1.Add("Row 2");
h1.Add("Row 3");
System.Console.Out.WriteLine("***** Collection methods *****\n");
show("Three unkeyed elements", h1);
h1.RemoveUnkeyedObject("Row 2");
show("Did we remove Row 2?", h1);
h1.Clear();
show("Cleared", h1);
// Insert Rows with Keys.
h1.Add("key 1", "Row 1");
h1.Add("key 2", "Row 2");
h1.Add("key 3", "Row 3");
show("Three keyed elements", h1);
h1.Remove("key 2");
show("Did we remove Row 2 using a key?", h1);
h1.Clear();
show("Cleared", h1);
// Again insert Rows with Keys.
h1.Add("key 1", "Row 1");
h1.Add("key 2", "Row 2");
h1.Add("key 3", "Row 3");
show("Three elements again!", h1);
System.Console.Out.WriteLine("Check contains (true):" + h1.ContainsValue("Row 2"));
// Inserting Rows in h2.
h2.Add("key 4", "Row 4");
h2.Add("key 5", "Row 5");
System.Console.Out.WriteLine("Check containsAll (false):" + h1.ContainsAll(h2));
h1.AddAll(h2);
show("Should have 5 elements now", h1);
System.Console.Out.WriteLine("Check containsAll (true):" + h1.ContainsAll(h2));
System.Console.Out.WriteLine("Check contains (true):" + h1.ContainsKey("key 4"));
h1.RemoveValue("Row 4");
show("Dropped Row 4:", h1);
System.Console.Out.WriteLine("Check containsAll (false):" + h1.ContainsAll(h2));
System.Console.Out.WriteLine("Check contains (false):" + h1.ContainsKey("Row 4"));
System.Console.Out.WriteLine("Check isEmpty (false):" + h1.Empty);
h1.RemoveValue("Row 1");
h1.RemoveValue("Row 2");
h1.RemoveValue("Row 3");
h1.RemoveValue("Row 5");
show("Removed all elements", h1);
System.Console.Out.WriteLine("Check isEmpty (true):" + h1.Empty);
h1.Add("Row 1");
h1.Add("Row 2");
h1.Add("Row 3");
h1.AddAll(h2);
show("Back to 5", h1);
h1.RemoveAll(h2);
show("Testing removeAll back to 3?", h1);
h1.AddAll(h2);
h1.RetainAll(h2);
show("Testing retainAll now just 2?", h1);
System.Console.Out.WriteLine("\n\n**** Test Cursor **** \n");
j = h1.GetCursor();
while (j.MoveNext())
{
System.Console.Out.WriteLine("Cursor got: [" + ((DictionaryEntry)j.Current).Key + "] \"" +
((DictionaryEntry)j.Current).Value + "\"");
}
h1.Clear();
h1.Add("key 1", "Row 1");
h1.Add("key 2", "Row 2");
h1.Add("Row 3");
h1.Add("key 4", "Row 4");
h1.Add("Row 5");
j = h1.GetCursor();
j.MoveNext();
j.MoveNext();
j.Remove(); // Should get rid of second row
show("Removed second row with cursor", h1);
System.Console.Out.WriteLine("Cursor should still be OK:" + j.MoveNext() + " [" +
((DictionaryEntry)j.Current).Key + "] \"" +
((DictionaryEntry)j.Current).Value + "\"");
System.Console.Out.WriteLine("Cursor should still be OK:" + j.MoveNext() + " [" +
((DictionaryEntry)j.Current).Key + "] \"" +
((DictionaryEntry)j.Current).Value + "\"");
System.Console.Out.WriteLine("Cursor should be done:" + j.MoveNext());
System.Console.Out.WriteLine("\n\n**** HashedListCursor ****\n");
i = h1.GetCursor(-1);
System.Console.Out.WriteLine("Cursor should still be OK:" + i.MoveNext() + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
System.Console.Out.WriteLine("Cursor should still be OK:" + i.MoveNext() + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
System.Console.Out.WriteLine("Cursor should still be OK:" + i.MoveNext() + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
System.Console.Out.WriteLine("Cursor should still be OK:" + i.MoveNext() + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
System.Console.Out.WriteLine("Cursor should be done:" + i.MoveNext());
i.Key = "key 1";
i.MoveNext();
i.Add("key 2", "Row 2");
System.Console.Out.WriteLine("Cursor should still be OK:" + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
i.MoveNext();
System.Console.Out.WriteLine("Cursor should still be OK:" + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
i.MoveNext();
System.Console.Out.WriteLine("Cursor should still be OK:" + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
System.Console.Out.WriteLine("Cursor should be done:" + i.MoveNext());
i.Key = "key 4";
System.Console.Out.WriteLine("Cursor should still be OK:" + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
i.MoveNext();
System.Console.Out.WriteLine("Cursor should still be OK:" + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
System.Console.Out.WriteLine("Cursor should be done:" + i.MoveNext());
i.Key = "key 2";
i.MoveNext();
i.MoveNext();
i.Add("Row 3.5");
i.Add("Row 3.6");
show("Added some rows... should be 7", h1);
i = h1.GetCursor("key 2");
i.Add("Row 1.5");
i.Add("key 1.7", "Row 1.7");
i.Add("Row 1.9");
System.Console.Out.WriteLine("Cursor should point to 2:" + ((System.Collections.DictionaryEntry)i.Current).Key);
i.Key = "key 1.7";
System.Console.Out.WriteLine("Cursor should point to 1.7:" + ((System.Collections.DictionaryEntry)i.Current).Key);
}
public void TestCollection()
{
HashedList h1 = new HashedList();
HashedList h2 = new HashedList();
Cursor i = h1.GetCursor(-1);
// Add a few unkeyed rows.
h1.Add("Row 1");
h1.Add("Row 2");
h1.Add("Row 3");
Assert.AreEqual(3, h1.Count);
Assert.AreEqual(true, h1.ContainsValue("Row 1"));
Assert.AreEqual(true, h1.ContainsValue("Row 2"));
h1.RemoveValue("Row 2");
Assert.AreEqual(true, h1.ContainsValue("Row 1"));
Assert.AreEqual(false, h1.ContainsValue("Row 2"));
Assert.AreEqual(2, h1.Count);
h1.Clear();
Assert.AreEqual(0, h1.Count);
// Add few Keyed rows.
h1.Add("key 1", "Row 1");
h1.Add("key 2", "Row 2");
h1.Add("key 3", "Row 3");
Assert.AreEqual(3, h1.Count);
Assert.AreEqual(true, h1.ContainsValue("Row 1"));
Assert.AreEqual(true, h1.ContainsKey("key 1"));
Assert.AreEqual(true, h1.ContainsValue("Row 2"));
Assert.AreEqual(true, h1.ContainsKey("key 2"));
Assert.AreEqual(true, h1.ContainsValue("Row 3"));
Assert.AreEqual(true, h1.ContainsKey("key 3"));
h1.RemoveKey("key 2");
Assert.AreEqual(2, h1.Count);
Assert.AreEqual(true, h1.ContainsValue("Row 1"));
Assert.AreEqual(true, h1.ContainsKey("key 1"));
Assert.AreEqual(false, h1.ContainsValue("Row 2"));
Assert.AreEqual(false, h1.ContainsKey("key 2"));
Assert.AreEqual(true, h1.ContainsValue("Row 3"));
Assert.AreEqual(true, h1.ContainsKey("key 3"));
h1.Clear();
Assert.AreEqual(0, h1.Count);
h1.Add("key 1", "Row 1");
h1.Add("key 2", "Row 2");
h1.Add("key 3", "Row 3");
Assert.AreEqual(3, h1.Count);
Assert.AreEqual(true, h1.ContainsValue("Row 2"));
Assert.AreEqual(true, h1.ContainsKey("key 2"));
h2.Add("key 4", "Row 4");
h2.Add("key 5", "Row 5");
Assert.AreEqual(false, h1.ContainsAll(h2));
h1.AddAll(h2);
Assert.AreEqual(5, h1.Count);
Assert.AreEqual(true, h1.ContainsAll(h2));
Assert.AreEqual(true, h1.ContainsValue("Row 4"));
h1.RemoveValue("Row 4");
Assert.AreEqual(false, h1.ContainsValue("Row 4"));
Assert.AreEqual(false, h1.ContainsAll(h2));
Assert.AreEqual(false, h1.Empty);
h1.RemoveValue("Row 1");
h1.RemoveValue("Row 2");
h1.RemoveValue("Row 3");
h1.RemoveValue("Row 5");
Assert.AreEqual(true, h1.Empty);
h1.Add("Row 1");
h1.Add("Row 2");
h1.Add("Row 3");
h1.AddAll(h2);
Assert.AreEqual(5, h1.Count);
h1.RemoveAll(h2);
Assert.AreEqual(3, h1.Count);
h1.AddAll(h2);
Assert.AreEqual(5, h1.Count);
h1.RetainAll(h2);
Assert.AreEqual(2, h1.Count);
}
public void TestHashedList()
{
HashedList h1 = new HashedList();
HashedList h2 = new HashedList();
Cursor i = h1.GetCursor(-1);
Cursor j;
// Add a few unkeyed rows.
h1.Add("Row 1");
h1.Add("Row 2");
h1.Add("Row 3");
System.Console.Out.WriteLine("***** Collection methods *****\n");
show("Three unkeyed elements", h1);
h1.RemoveUnkeyedObject("Row 2");
show("Did we remove Row 2?", h1);
h1.Clear();
show("Cleared", h1);
// Insert Rows with Keys.
h1.Add("key 1", "Row 1");
h1.Add("key 2", "Row 2");
h1.Add("key 3", "Row 3");
show("Three keyed elements", h1);
h1.Remove("key 2");
show("Did we remove Row 2 using a key?", h1);
h1.Clear();
show("Cleared", h1);
// Again insert Rows with Keys.
h1.Add("key 1", "Row 1");
h1.Add("key 2", "Row 2");
h1.Add("key 3", "Row 3");
show("Three elements again!", h1);
Console.Out.WriteLine("Check contains (true):" + h1.ContainsValue("Row 2"));
// Inserting Rows in h2.
h2.Add("key 4", "Row 4");
h2.Add("key 5", "Row 5");
Console.Out.WriteLine("Check containsAll (false):" + h1.ContainsAll(h2));
h1.AddAll(h2);
show("Should have 5 elements now", h1);
Console.Out.WriteLine("Check containsAll (true):" + h1.ContainsAll(h2));
Console.Out.WriteLine("Check contains (true):" + h1.ContainsKey("key 4"));
h1.RemoveValue("Row 4");
show("Dropped Row 4:", h1);
Console.Out.WriteLine("Check containsAll (false):" + h1.ContainsAll(h2));
Console.Out.WriteLine("Check contains (false):" + h1.ContainsKey("Row 4"));
Console.Out.WriteLine("Check isEmpty (false):" + h1.Empty);
h1.RemoveValue("Row 1");
h1.RemoveValue("Row 2");
h1.RemoveValue("Row 3");
h1.RemoveValue("Row 5");
show("Removed all elements", h1);
Console.Out.WriteLine("Check isEmpty (true):" + h1.Empty);
h1.Add("Row 1");
h1.Add("Row 2");
h1.Add("Row 3");
h1.AddAll(h2);
show("Back to 5", h1);
h1.RemoveAll(h2);
show("Testing removeAll back to 3?", h1);
h1.AddAll(h2);
h1.RetainAll(h2);
show("Testing retainAll now just 2?", h1);
Console.Out.WriteLine("\n\n**** Test Cursor **** \n");
j = h1.GetCursor();
while (j.MoveNext())
{
Console.Out.WriteLine("Cursor got: [" + ((DictionaryEntry)j.Current).Key + "] \"" +
((DictionaryEntry)j.Current).Value + "\"");
}
h1.Clear();
h1.Add("key 1", "Row 1");
h1.Add("key 2", "Row 2");
h1.Add("Row 3");
h1.Add("key 4", "Row 4");
h1.Add("Row 5");
j = h1.GetCursor();
j.MoveNext();
j.MoveNext();
j.Remove(); // Should get rid of second row
show("Removed second row with cursor", h1);
Console.Out.WriteLine("Cursor should still be OK:" + j.MoveNext() + " [" +
((DictionaryEntry)j.Current).Key + "] \"" +
((DictionaryEntry)j.Current).Value + "\"");
Console.Out.WriteLine("Cursor should still be OK:" + j.MoveNext() + " [" +
((DictionaryEntry)j.Current).Key + "] \"" +
((DictionaryEntry)j.Current).Value + "\"");
Console.Out.WriteLine("Cursor should be done:" + j.MoveNext());
Console.Out.WriteLine("\n\n**** HashedListCursor ****\n");
i = h1.GetCursor(-1);
Console.Out.WriteLine("Cursor should still be OK:" + i.MoveNext() + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
Console.Out.WriteLine("Cursor should still be OK:" + i.MoveNext() + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
Console.Out.WriteLine("Cursor should still be OK:" + i.MoveNext() + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
Console.Out.WriteLine("Cursor should still be OK:" + i.MoveNext() + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
Console.Out.WriteLine("Cursor should be done:" + i.MoveNext());
i.Key = "key 1";
i.MoveNext();
i.Add("key 2", "Row 2");
Console.Out.WriteLine("Cursor should still be OK:" + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
i.MoveNext();
Console.Out.WriteLine("Cursor should still be OK:" + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
i.MoveNext();
Console.Out.WriteLine("Cursor should still be OK:" + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
Console.Out.WriteLine("Cursor should be done:" + i.MoveNext());
i.Key = "key 4";
Console.Out.WriteLine("Cursor should still be OK:" + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
i.MoveNext();
Console.Out.WriteLine("Cursor should still be OK:" + " [" +
((DictionaryEntry)i.Current).Key + "] \"" +
((DictionaryEntry)i.Current).Value + "\"");
Console.Out.WriteLine("Cursor should be done:" + i.MoveNext());
i.Key = "key 2";
i.MoveNext();
i.MoveNext();
i.Add("Row 3.5");
i.Add("Row 3.6");
show("Added some rows... should be 7", h1);
i = h1.GetCursor("key 2");
i.Add("Row 1.5");
i.Add("key 1.7", "Row 1.7");
i.Add("Row 1.9");
Console.Out.WriteLine("Cursor should point to 2:" +
((DictionaryEntry)i.Current).Key);
i.Key = "key 1.7";
Console.Out.WriteLine("Cursor should point to 1.7:" +
((DictionaryEntry)i.Current).Key);
}
public void TestCollection()
{
HashedList h1 = new HashedList();
HashedList h2 = new HashedList();
Cursor i = h1.GetCursor(-1);
// Add a few unkeyed rows.
h1.Add("Row 1");
h1.Add("Row 2");
h1.Add("Row 3");
Assertion.AssertEquals("Adding unkeyed rows", 3, h1.Count);
Assertion.AssertEquals("Has row 1", true, h1.ContainsValue("Row 1"));
Assertion.AssertEquals("Has row 2", true, h1.ContainsValue("Row 2"));
h1.RemoveValue("Row 2");
Assertion.AssertEquals("Has row 1", true, h1.ContainsValue("Row 1"));
Assertion.AssertEquals("Has row 2", false, h1.ContainsValue("Row 2"));
Assertion.AssertEquals("Delete unkeyed rows", 2, h1.Count);
h1.Clear();
Assertion.AssertEquals("Cleared unkeyed rows", 0, h1.Count);
// Add few Keyed rows.
h1.Add("key 1", "Row 1");
h1.Add("key 2", "Row 2");
h1.Add("key 3", "Row 3");
Assertion.AssertEquals("Adding keyed rows", 3, h1.Count);
Assertion.AssertEquals("Has Row 1", true, h1.ContainsValue("Row 1"));
Assertion.AssertEquals("Has key 1", true, h1.ContainsKey("key 1"));
Assertion.AssertEquals("Has Row 2", true, h1.ContainsValue("Row 2"));
Assertion.AssertEquals("Has key 2", true, h1.ContainsKey("key 2"));
Assertion.AssertEquals("Has Row 3", true, h1.ContainsValue("Row 3"));
Assertion.AssertEquals("Has key 3", true, h1.ContainsKey("key 3"));
h1.RemoveKey("key 2");
Assertion.AssertEquals("Delete keyed row", 2, h1.Count);
Assertion.AssertEquals("Has Row 1", true, h1.ContainsValue("Row 1"));
Assertion.AssertEquals("Has key 1", true, h1.ContainsKey("key 1"));
Assertion.AssertEquals("Has Row 2", false, h1.ContainsValue("Row 2"));
Assertion.AssertEquals("Has key 2", false, h1.ContainsKey("key 2"));
Assertion.AssertEquals("Has Row 3", true, h1.ContainsValue("Row 3"));
Assertion.AssertEquals("Has key 3", true, h1.ContainsKey("key 3"));
h1.Clear();
Assertion.AssertEquals("Clear keyed rows", 0, h1.Count);
h1.Add("key 1", "Row 1");
h1.Add("key 2", "Row 2");
h1.Add("key 3", "Row 3");
Assertion.AssertEquals("Re-Adding keyed rows", 3, h1.Count);
Assertion.AssertEquals("Has Row 2", true, h1.ContainsValue("Row 2"));
Assertion.AssertEquals("Has key 2", true, h1.ContainsKey("key 2"));
h2.Add("key 4", "Row 4");
h2.Add("key 5", "Row 5");
Assertion.AssertEquals("containsAll(beforeAdd)", false, h1.ContainsAll(h2));
h1.AddAll(h2);
Assertion.AssertEquals("AddAll()", 5, h1.Count);
Assertion.AssertEquals("ContainsAll(afterAdd)", true, h1.ContainsAll(h2));
Assertion.AssertEquals("has row 4", true, h1.ContainsValue("Row 4"));
h1.RemoveValue("Row 4");
Assertion.AssertEquals("dropped row 4", false, h1.ContainsValue("Row 4"));
Assertion.AssertEquals("ContainsAll(afterDrop)", false, h1.ContainsAll(h2));
Assertion.AssertEquals("Empty(false)", false, h1.Empty);
h1.RemoveValue("Row 1");
h1.RemoveValue("Row 2");
h1.RemoveValue("Row 3");
h1.RemoveValue("Row 5");
Assertion.AssertEquals("isEmpty(true)", true, h1.Empty);
h1.Add("Row 1");
h1.Add("Row 2");
h1.Add("Row 3");
h1.AddAll(h2);
Assertion.AssertEquals("Adding back", 5, h1.Count);
h1.RemoveAll(h2);
Assertion.AssertEquals("removeAll()", 3, h1.Count);
h1.AddAll(h2);
Assertion.AssertEquals("Adding back again", 5, h1.Count);
h1.RetainAll(h2);
Assertion.AssertEquals("retainAll()", 2, h1.Count);
}