public void EnumerationEmptyTest()
{
dictionary = new SplayDictionary <int, string>();
IEnumerator <KeyValuePair <int, string> > e = dictionary.GetEnumerator();
Assert.IsFalse(e.MoveNext());
}
public void WeissTest()
{
dictionary = new SplayDictionary <int, string>();
const int NUMS = 40000;
const int GAP = 307;
for (int i = GAP; i != 0; i = (i + GAP) % NUMS)
{
dictionary.Add(i, i.ToString());
}
for (int i = 1; i < NUMS; i += 2)
{
dictionary.Remove(i);
}
Assert.AreEqual(new KeyValuePair <int, string>(2, "2"), dictionary.Minimum);
Assert.AreEqual(new KeyValuePair <int, string>(NUMS - 2, (NUMS - 2).ToString()), dictionary.Maximum);
for (int i = 2; i < NUMS; i += 2)
{
Assert.IsTrue(dictionary.ContainsKey(i));
}
for (int i = 1; i < NUMS; i += 2)
{
Assert.IsFalse(dictionary.ContainsKey(i));
}
}
public void FindSmallestAboveTestFail()
{
var array = new[] { new KeyValuePair <int, string>(5, "five"),
new KeyValuePair <int, string>(11, "eleven"),
new KeyValuePair <int, string>(8, "eight"),
new KeyValuePair <int, string>(13, "thirteen"),
new KeyValuePair <int, string>(3, "three"),
new KeyValuePair <int, string>(7, "seven"),
new KeyValuePair <int, string>(12, "twelve") };
dictionary = new SplayDictionary <int, string>(array);
dictionary.SmallestAbove(13);
}
public void FindLargestBelowTest()
{
var array = new[] { new KeyValuePair <int, string>(5, "five"),
new KeyValuePair <int, string>(11, "eleven"),
new KeyValuePair <int, string>(8, "eight"),
new KeyValuePair <int, string>(13, "thirteen"),
new KeyValuePair <int, string>(3, "three"),
new KeyValuePair <int, string>(7, "seven"),
new KeyValuePair <int, string>(12, "twelve") };
dictionary = new SplayDictionary <int, string>(array);
Assert.AreEqual(new KeyValuePair <int, string>(8, "eight"), dictionary.LargestBelow(10));
}
public void TryGetValueNegativeTest()
{
var array = new[] { new KeyValuePair <int, string>(64, "sixty-four"),
new KeyValuePair <int, string>(3, "three"),
new KeyValuePair <int, string>(16, "sixteen"),
new KeyValuePair <int, string>(73, "seventy-three"),
new KeyValuePair <int, string>(67, "sixty-seven") };
dictionary = new SplayDictionary <int, string>(array);
string result;
bool success = dictionary.TryGetValue(15, out result);
Assert.IsFalse(success);
}
public void ClearTest()
{
var array = new[] { new KeyValuePair <int, string>(100, "one hundred"),
new KeyValuePair <int, string>(29, "twenty-nine"),
new KeyValuePair <int, string>(77, "seventy-seven"),
new KeyValuePair <int, string>(59, "fifty-nine"),
new KeyValuePair <int, string>(61, "sixty-one") };
dictionary = new SplayDictionary <int, string>(array);
Assert.IsFalse(dictionary.IsEmpty);
dictionary.Clear();
Assert.IsTrue(dictionary.IsEmpty);
Assert.AreEqual(0, dictionary.Count);
}
public void ConstructFromEnumerable()
{
var array = new [] { new KeyValuePair <int, string>(41, "forty-one"),
new KeyValuePair <int, string>(92, "ninety-two"),
new KeyValuePair <int, string>(71, "seventy-one"),
new KeyValuePair <int, string>(12, "twelve"),
new KeyValuePair <int, string>(20, "twenty") };
dictionary = new SplayDictionary <int, string>(array);
Assert.AreEqual(array.Length, dictionary.Count);
foreach (KeyValuePair <int, string> kv in array)
{
Assert.IsTrue(dictionary.Contains(kv));
}
}
public void RemoveFailTest()
{
var array = new[] { new KeyValuePair <int, string>(77, "seventy-seven"),
new KeyValuePair <int, string>(85, "eighty-five"),
new KeyValuePair <int, string>(66, "sixty-six"),
new KeyValuePair <int, string>(56, "fifty-six"),
new KeyValuePair <int, string>(74, "seventy-four"),
new KeyValuePair <int, string>(94, "ninety-four"),
new KeyValuePair <int, string>(27, "twenty-seven"),
new KeyValuePair <int, string>(61, "sixty-one"),
new KeyValuePair <int, string>(48, "forty-eight"),
new KeyValuePair <int, string>(27, "fifty-seven") };
dictionary = new SplayDictionary <int, string>(array);
Assert.IsFalse(dictionary.Remove(34));
}
public void RootValueTest()
{
var array = new[]
{
new KeyValuePair <int, string>(5, "five"),
new KeyValuePair <int, string>(3, "three"),
new KeyValuePair <int, string>(7, "seven")
};
dictionary = new SplayDictionary <int, string>(array);
Assert.IsTrue(dictionary.ContainsKey(5));
Assert.AreEqual("five", dictionary.Root.Value);
Assert.AreEqual("three", dictionary.Left.Value);
Assert.AreEqual("seven", dictionary.Right.Value);
Assert.AreEqual("three", dictionary.Minimum.Value);
Assert.AreEqual("seven", dictionary.Maximum.Value);
}
public void CountTest()
{
dictionary = new SplayDictionary <int, string>();
dictionary.Add(5, "five");
Assert.AreEqual(1, dictionary.Count);
dictionary.Add(3, "three");
Assert.AreEqual(2, dictionary.Count);
dictionary.Remove(5);
Assert.AreEqual(1, dictionary.Count);
dictionary.Add(7, "seven");
Assert.AreEqual(2, dictionary.Count);
dictionary.Add(9, "nine");
Assert.AreEqual(3, dictionary.Count);
dictionary.Add(5, "five");
Assert.AreEqual(4, dictionary.Count);
dictionary.Remove(7);
Assert.AreEqual(3, dictionary.Count);
}
public void ItemTest()
{
dictionary = new SplayDictionary <int, string>();
dictionary[1] = "one";
Assert.AreEqual(1, dictionary.Count);
Assert.IsTrue(dictionary.ContainsKey(1));
Assert.AreEqual("one", dictionary[1]);
dictionary[2] = "two";
Assert.AreEqual(2, dictionary.Count);
Assert.IsTrue(dictionary.ContainsKey(1));
Assert.IsTrue(dictionary.ContainsKey(2));
Assert.AreEqual("one", dictionary[1]);
Assert.AreEqual("two", dictionary[2]);
dictionary[2] = "TWO";
Assert.AreEqual(2, dictionary.Count);
Assert.IsTrue(dictionary.ContainsKey(1));
Assert.IsTrue(dictionary.ContainsKey(2));
Assert.AreEqual("one", dictionary[1]);
Assert.AreEqual("TWO", dictionary[2]);
dictionary[3] = "three";
Assert.AreEqual(3, dictionary.Count);
Assert.IsTrue(dictionary.ContainsKey(1));
Assert.IsTrue(dictionary.ContainsKey(2));
Assert.IsTrue(dictionary.ContainsKey(3));
Assert.AreEqual("one", dictionary[1]);
Assert.AreEqual("TWO", dictionary[2]);
Assert.AreEqual("three", dictionary[3]);
dictionary[3] = "three";
Assert.AreEqual(3, dictionary.Count);
Assert.IsTrue(dictionary.ContainsKey(1));
Assert.IsTrue(dictionary.ContainsKey(2));
Assert.IsTrue(dictionary.ContainsKey(3));
Assert.AreEqual("one", dictionary[1]);
Assert.AreEqual("TWO", dictionary[2]);
Assert.AreEqual("three", dictionary[3]);
}
public void EnumerationTest()
{
var array = new[] { new KeyValuePair <int, string>(64, "sixty-four"),
new KeyValuePair <int, string>(3, "three"),
new KeyValuePair <int, string>(16, "sixteen"),
new KeyValuePair <int, string>(73, "seventy-three"),
new KeyValuePair <int, string>(67, "sixty-seven") };
dictionary = new SplayDictionary <int, string>(array);
IEnumerator <KeyValuePair <int, string> > e = dictionary.GetEnumerator();
Assert.IsTrue(e.MoveNext());
Assert.AreEqual(new KeyValuePair <int, string>(3, "three"), e.Current);
Assert.IsTrue(e.MoveNext());
Assert.AreEqual(new KeyValuePair <int, string>(16, "sixteen"), e.Current);
Assert.IsTrue(e.MoveNext());
Assert.AreEqual(new KeyValuePair <int, string>(64, "sixty-four"), e.Current);
Assert.IsTrue(e.MoveNext());
Assert.AreEqual(new KeyValuePair <int, string>(67, "sixty-seven"), e.Current);
Assert.IsTrue(e.MoveNext());
Assert.AreEqual(new KeyValuePair <int, string>(73, "seventy-three"), e.Current);
Assert.IsFalse(e.MoveNext());
}
public KeyCollection(SplayDictionary <K, V> dictionary)
{
this.dictionary = dictionary;
}
public ValueCollection(SplayDictionary <K, V> dictionary)
{
this.dictionary = dictionary;
}
public void MaximumFailTest()
{
dictionary = new SplayDictionary <int, string>();
var dummy = dictionary.Maximum;
}
public void DefaultConstructor()
{
dictionary = new SplayDictionary <int, string>();
Assert.IsTrue(dictionary.IsEmpty);
Assert.AreEqual(0, dictionary.Count);
}
public void EmptinessTest()
{
dictionary = new SplayDictionary <int, string>();
dictionary.Add(new KeyValuePair <int, string>(42, "forty-two"));
Assert.IsFalse(dictionary.IsEmpty);
}