public void Union()
{
Set <int> setOdds = new Set <int>(new int[] { 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25 });
Set <int> setDigits = new Set <int>(new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 });
Set <int> set1, set2, set3;
// Algorithms work different depending on sizes, so try both ways.
set1 = new Set <int>(setOdds);
set2 = new Set <int>(setDigits);
set1.UnionWith(set2);
InterfaceTests.TestCollectionGeneric(set1,
new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 17, 19, 21, 23, 25 },
false,
null);
set1 = new Set <int>(setOdds);
set2 = new Set <int>(setDigits);
set2.UnionWith(set1);
InterfaceTests.TestCollectionGeneric(set2,
new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 17, 19, 21, 23, 25 },
false,
null);
set1 = new Set <int>(setOdds);
set2 = new Set <int>(setDigits);
set3 = Set <int> .Union(set1, set2);
InterfaceTests.TestCollectionGeneric(set3,
new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 17, 19, 21, 23, 25 },
false,
null);
set1 = new Set <int>(setOdds);
set2 = new Set <int>(setDigits);
set3 = Set <int> .Union(set2, set1);
InterfaceTests.TestCollectionGeneric(set3,
new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 17, 19, 21, 23, 25 },
false,
null);
// Make sure intersection with itself works.
set1 = new Set <int>(setDigits);
set1.UnionWith(set1);
InterfaceTests.TestCollectionGeneric(set1, new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, false, null);
set1 = new Set <int>(setDigits);
set3 = Set <int> .Union(set1, set1);
InterfaceTests.TestCollectionGeneric(set3, new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, false, null);
}
public void Add()
{
ISet <string> set1 = new Set <string>(StringComparer.InvariantCultureIgnoreCase);
bool b;
b = set1.Add("hello");
Assert.IsTrue(b);
b = set1.Add("foo");
Assert.IsTrue(b);
b = set1.Add("");
Assert.IsTrue(b);
b = set1.Add("HELLO");
Assert.IsFalse(b);
b = set1.Add("foo");
Assert.IsFalse(b);
b = set1.Add("Hello");
Assert.IsFalse(b);
b = set1.Add("Eric");
Assert.IsTrue(b);
InterfaceTests.TestCollectionGeneric(set1, new string[] { "", "Eric", "foo", "hello" }, false, null);
}
public void SymmetricExcept()
{
Set <int> setOdds = new Set <int>(new int[] { 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25 });
Set <int> setDigits = new Set <int>(new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 });
Set <int> set1, set2, set3;
// Algorithms work different depending on sizes, so try both ways.
set1 = new Set <int>(setOdds);
set2 = new Set <int>(setDigits);
set1.SymmetricExceptWith(set2);
InterfaceTests.TestCollectionGeneric(set1, new int[] { 2, 4, 6, 8, 11, 13, 15, 17, 19, 21, 23, 25 }, false, null);
set1 = new Set <int>(setOdds);
set2 = new Set <int>(setDigits);
set2.SymmetricExceptWith(set1);
InterfaceTests.TestCollectionGeneric(set2, new int[] { 2, 4, 6, 8, 11, 13, 15, 17, 19, 21, 23, 25 }, false, null);
set1 = new Set <int>(setOdds);
set2 = new Set <int>(setDigits);
set3 = Set <int> .SymmetricExcept(set1, set2);
InterfaceTests.TestCollectionGeneric(set3, new int[] { 2, 4, 6, 8, 11, 13, 15, 17, 19, 21, 23, 25 }, false, null);
set1 = new Set <int>(setOdds);
set2 = new Set <int>(setDigits);
set3 = Set <int> .SymmetricExcept(set2, set1);
InterfaceTests.TestCollectionGeneric(set3, new int[] { 2, 4, 6, 8, 11, 13, 15, 17, 19, 21, 23, 25 }, false, null);
// Make sure intersection with itself works.
set1 = new Set <int>(setDigits);
set1.SymmetricExceptWith(set1);
Assert.AreEqual(0, set1.Count);
set1 = new Set <int>(setDigits);
set3 = Set <int> .SymmetricExcept(set1, set1);
Assert.AreEqual(0, set3.Count);
}