public void TestEmptyDictionary()
{
var dictionary = ImmutableTreeDictionary.Create <int, int>();
Assert.Same(ImmutableTreeDictionary <int, int> .Empty, dictionary);
ImmutableTreeDictionary <int, int> .KeyCollection keys = dictionary.Keys;
ImmutableTreeDictionary <int, int> .ValueCollection values = dictionary.Values;
Assert.Empty(dictionary);
Assert.Empty(keys);
Assert.Empty(values);
#pragma warning disable xUnit2013 // Do not use equality check to check for collection size.
Assert.Equal(0, dictionary.Count);
Assert.Equal(0, keys.Count);
Assert.Equal(0, values.Count);
#pragma warning restore xUnit2013 // Do not use equality check to check for collection size.
Assert.False(dictionary.ContainsKey(0));
Assert.False(dictionary.ContainsValue(0));
Assert.False(dictionary.TryGetValue(0, out _));
Assert.Throws <KeyNotFoundException>(() => dictionary[0]);
#pragma warning disable xUnit2017 // Do not use Contains() to check if a value exists in a collection
Assert.False(keys.Contains(0));
Assert.False(values.Contains(0));
#pragma warning restore xUnit2017 // Do not use Contains() to check if a value exists in a collection
Assert.Same(dictionary, dictionary.Clear());
}
public void TestCollectionConstructorUsesCorrectComparer()
{
object key1 = new object();
object key2 = new object();
KeyValuePair <object, int>[] pairs =
{
new KeyValuePair <object, int>(key1, 1),
new KeyValuePair <object, int>(key2, 2),
};
var objectDictionary = ImmutableTreeDictionary.CreateRange(ZeroHashCodeEqualityComparer <object> .Default, pairs);
Assert.Same(ZeroHashCodeEqualityComparer <object> .Default, objectDictionary.KeyComparer);
Assert.Equal(2, objectDictionary.Count);
Assert.Equal(new[] { new KeyValuePair <object, int>(key1, 1), new KeyValuePair <object, int>(key2, 2) }, objectDictionary);
var stringDictionary = ImmutableTreeDictionary.Create <string, int>();
Assert.Same(EqualityComparer <string> .Default, stringDictionary.KeyComparer);
stringDictionary = ImmutableTreeDictionary.Create <string, int>(StringComparer.OrdinalIgnoreCase);
Assert.Same(StringComparer.OrdinalIgnoreCase, stringDictionary.KeyComparer);
KeyValuePair <object, int>[] pairsWithDuplicateKey =
{
new KeyValuePair <object, int>(key1, 1),
new KeyValuePair <object, int>(key2, 2),
new KeyValuePair <object, int>(key1, 3),
};
Assert.Throws <ArgumentException>(() => ImmutableTreeDictionary.CreateRange(ZeroHashCodeEqualityComparer <object> .Default, pairsWithDuplicateKey));
}
public void Init()
{
var r = new Random(4);
_keys = new List <T>();
_immDict = ImmutableDictionary <T, int> .Empty;
_sasaTrie = Trie <T, int> .Empty;
_sGuh = ImmutableTrieDictionary.Create <T, int>();
_tvl = ImmutableTreeDictionary <T, int> .Empty;
_imToolsHashMap = ImHashMap <T, int> .Empty;
_apexHashMap = HashMap <T, int> .Empty;
for (int i = 0; i < Count; ++i)
{
var k = GenerateValue(r);
_immDict = _immDict.SetItem(k, i);
_sasaTrie = _sasaTrie.Add(k, i);
_sGuh = _sGuh.Add(k, i);
_tvl = _tvl.Add(k, i);
_imToolsHashMap = _imToolsHashMap.AddOrUpdate(k, i);
_apexHashMap = _apexHashMap.SetItem(k, i);
_keys.Add(k);
}
int n = _keys.Count;
while (n > 1)
{
n--;
int k = r.Next(n + 1);
var value = _keys[k];
_keys[k] = _keys[n];
_keys[n] = value;
}
}
public void TestTryGetKey()
{
ImmutableTreeDictionary <int, int> .Builder dictionary = ImmutableTreeDictionary.CreateBuilder <int, int>();
Assert.False(dictionary.TryGetKey(0, out var key));
Assert.Equal(0, key);
dictionary.Add(1, 2);
Assert.True(dictionary.TryGetKey(1, out key));
Assert.Equal(1, key);
}
public void TestIDictionary()
{
IDictionary dictionary = ImmutableTreeDictionary.Create <int, int>();
Assert.True(dictionary.IsFixedSize);
Assert.True(dictionary.IsReadOnly);
Assert.True(dictionary.IsSynchronized);
dictionary = Enumerable.Range(0, 11).ToImmutableTreeDictionary(x => x, x => x + 1);
Assert.Throws <ArgumentNullException>("key", () => dictionary[key: null !]);
public void TestGetValueOrDefault()
{
ImmutableTreeDictionary <int, int> .Builder dictionary = ImmutableTreeDictionary.CreateBuilder <int, int>();
Assert.Equal(0, dictionary.GetValueOrDefault(1));
Assert.Equal(0, dictionary.GetValueOrDefault(1, 0));
Assert.Equal(1, dictionary.GetValueOrDefault(1, 1));
dictionary.Add(1, 2);
Assert.Equal(2, dictionary.GetValueOrDefault(1));
Assert.Equal(2, dictionary.GetValueOrDefault(1, 0));
Assert.Equal(2, dictionary.GetValueOrDefault(1, 1));
}
public void TestImmutableTreeDictionaryCreateRange()
{
KeyValuePair <string, int>[] pairs =
{
new KeyValuePair <string, int>(Generator.GetInt32().ToString(), Generator.GetInt32()),
new KeyValuePair <string, int>(Generator.GetInt32().ToString(), Generator.GetInt32()),
new KeyValuePair <string, int>(Generator.GetInt32().ToString(), Generator.GetInt32()),
};
var dictionary = ImmutableTreeDictionary.CreateRange(pairs);
Assert.Equal(pairs.OrderBy(KeyOfPairEqualityComparer <string, int> .Default.GetHashCode), dictionary);
}
public void TestRemoveRange()
{
ImmutableTreeDictionary <int, int> .Builder dictionary = ImmutableTreeDictionary.CreateBuilder <int, int>();
for (int i = 0; i < 10; i++)
{
dictionary.Add(i, i);
}
int[] itemsToRemove = dictionary.Keys.Where(i => (i & 1) == 0).ToArray();
dictionary.RemoveRange(itemsToRemove);
Assert.Equal(new[] { 1, 3, 5, 7, 9 }.Select(x => new KeyValuePair <int, int>(x, x)), dictionary);
Assert.Throws <ArgumentNullException>("keys", () => dictionary.RemoveRange(null !));
}
public void TestMultipleElementDictionary()
{
KeyValuePair <string, int>[] pairs =
{
new KeyValuePair <string, int>(Generator.GetInt32().ToString(), Generator.GetInt32()),
new KeyValuePair <string, int>(Generator.GetInt32().ToString(), Generator.GetInt32()),
new KeyValuePair <string, int>(Generator.GetInt32().ToString(), Generator.GetInt32()),
};
// Construction using ImmutableTreeDictionary.Create
var dictionary = ImmutableTreeDictionary.CreateRange(pairs);
Assert.Equal(pairs.OrderBy(KeyOfPairEqualityComparer <string, int> .Default.GetHashCode), dictionary);
dictionary = ImmutableTreeDictionary.CreateRange <string, int>(keyComparer: null, pairs);
Assert.Same(EqualityComparer <string> .Default, dictionary.KeyComparer);
Assert.Equal(pairs.OrderBy(KeyOfPairEqualityComparer <string, int> .Default.GetHashCode), dictionary);
dictionary = ImmutableTreeDictionary.CreateRange(StringComparer.OrdinalIgnoreCase, pairs);
Assert.Same(StringComparer.OrdinalIgnoreCase, dictionary.KeyComparer);
Assert.Equal(pairs.OrderBy(new KeyOfPairEqualityComparer <string, int>(StringComparer.OrdinalIgnoreCase).GetHashCode), dictionary);
// Construction using ImmutableTreeDictionary.ToImmutableTreeDictionary
dictionary = pairs.ToImmutableTreeDictionary();
Assert.Same(EqualityComparer <string> .Default, dictionary.KeyComparer);
Assert.Equal(pairs.OrderBy(KeyOfPairEqualityComparer <string, int> .Default.GetHashCode), dictionary);
dictionary = pairs.ToImmutableTreeDictionary(keyComparer: null);
Assert.Same(EqualityComparer <string> .Default, dictionary.KeyComparer);
Assert.Equal(pairs.OrderBy(KeyOfPairEqualityComparer <string, int> .Default.GetHashCode), dictionary);
dictionary = pairs.ToImmutableTreeDictionary(StringComparer.OrdinalIgnoreCase);
Assert.Same(StringComparer.OrdinalIgnoreCase, dictionary.KeyComparer);
Assert.Equal(pairs.OrderBy(new KeyOfPairEqualityComparer <string, int>(StringComparer.OrdinalIgnoreCase).GetHashCode), dictionary);
// Construction using ImmutableTreeDictionary.ToImmutableTreeDictionary, where the source is already an
// ImmutableTreeDictionary<TKey, TValue>
dictionary = pairs.ToImmutableTreeDictionary().ToImmutableTreeDictionary();
Assert.Same(EqualityComparer <string> .Default, dictionary.KeyComparer);
Assert.Equal(pairs.OrderBy(KeyOfPairEqualityComparer <string, int> .Default.GetHashCode), dictionary);
dictionary = pairs.ToImmutableTreeDictionary().ToImmutableTreeDictionary(keyComparer: null);
Assert.Same(EqualityComparer <string> .Default, dictionary.KeyComparer);
Assert.Equal(pairs.OrderBy(KeyOfPairEqualityComparer <string, int> .Default.GetHashCode), dictionary);
dictionary = pairs.ToImmutableTreeDictionary().ToImmutableTreeDictionary(StringComparer.OrdinalIgnoreCase);
Assert.Same(StringComparer.OrdinalIgnoreCase, dictionary.KeyComparer);
Assert.Equal(pairs.OrderBy(new KeyOfPairEqualityComparer <string, int>(StringComparer.OrdinalIgnoreCase).GetHashCode), dictionary);
}
public void TestSingleElementDictionary()
{
var key = Generator.GetInt32().ToString();
var value = Generator.GetInt32();
ImmutableTreeDictionary <string, int> dictionary = ImmutableTreeDictionary.Create <string, int>().Add(key, value);
Assert.Equal(new[] { new KeyValuePair <string, int>(key, value) }, dictionary);
dictionary = ImmutableTreeDictionary.Create <string, int>(keyComparer: null).Add(key, value);
Assert.Same(EqualityComparer <string> .Default, dictionary.KeyComparer);
Assert.Equal(new[] { new KeyValuePair <string, int>(key, value) }, dictionary);
dictionary = ImmutableTreeDictionary.Create <string, int>(StringComparer.OrdinalIgnoreCase).Add(key, value);
Assert.Same(StringComparer.OrdinalIgnoreCase, dictionary.KeyComparer);
Assert.Equal(new[] { new KeyValuePair <string, int>(key, value) }, dictionary);
}
public void TestDefaultComparer()
{
Assert.Same(EqualityComparer <object> .Default, ImmutableTreeDictionary.Create <object, object>().KeyComparer);
Assert.Same(EqualityComparer <object> .Default, ImmutableTreeDictionary.Create <object, object>().ValueComparer);
Assert.Same(EqualityComparer <int> .Default, ImmutableTreeDictionary.Create <int, int>().KeyComparer);
Assert.Same(EqualityComparer <int> .Default, ImmutableTreeDictionary.Create <int, int>().ValueComparer);
Assert.Same(EqualityComparer <IComparable> .Default, ImmutableTreeDictionary.Create <IComparable, IComparable>().KeyComparer);
Assert.Same(EqualityComparer <IComparable> .Default, ImmutableTreeDictionary.Create <IComparable, IComparable>().ValueComparer);
Assert.Same(EqualityComparer <object> .Default, ImmutableTreeDictionary.CreateRange <object, object>(Enumerable.Empty <KeyValuePair <object, object> >()).KeyComparer);
Assert.Same(EqualityComparer <object> .Default, ImmutableTreeDictionary.CreateRange <object, object>(Enumerable.Empty <KeyValuePair <object, object> >()).ValueComparer);
Assert.Same(EqualityComparer <int> .Default, ImmutableTreeDictionary.CreateRange <int, int>(Enumerable.Empty <KeyValuePair <int, int> >()).KeyComparer);
Assert.Same(EqualityComparer <int> .Default, ImmutableTreeDictionary.CreateRange <int, int>(Enumerable.Empty <KeyValuePair <int, int> >()).ValueComparer);
Assert.Same(EqualityComparer <IComparable> .Default, ImmutableTreeDictionary.CreateRange <IComparable, IComparable>(Enumerable.Empty <KeyValuePair <IComparable, IComparable> >()).KeyComparer);
Assert.Same(EqualityComparer <IComparable> .Default, ImmutableTreeDictionary.CreateRange <IComparable, IComparable>(Enumerable.Empty <KeyValuePair <IComparable, IComparable> >()).ValueComparer);
Assert.Same(EqualityComparer <object> .Default, ImmutableTreeDictionary.Create <object, object>(keyComparer: null).KeyComparer);
Assert.Same(EqualityComparer <object> .Default, ImmutableTreeDictionary.Create <object, object>(keyComparer: null).ValueComparer);
Assert.Same(EqualityComparer <int> .Default, ImmutableTreeDictionary.Create <int, int>(keyComparer: null).KeyComparer);
Assert.Same(EqualityComparer <int> .Default, ImmutableTreeDictionary.Create <int, int>(keyComparer: null).ValueComparer);
Assert.Same(EqualityComparer <IComparable> .Default, ImmutableTreeDictionary.Create <IComparable, IComparable>(keyComparer: null).KeyComparer);
Assert.Same(EqualityComparer <IComparable> .Default, ImmutableTreeDictionary.Create <IComparable, IComparable>(keyComparer: null).ValueComparer);
Assert.Same(EqualityComparer <object> .Default, ImmutableTreeDictionary.CreateRange <object, object>(keyComparer: null, Enumerable.Empty <KeyValuePair <object, object> >()).KeyComparer);
Assert.Same(EqualityComparer <object> .Default, ImmutableTreeDictionary.CreateRange <object, object>(keyComparer: null, Enumerable.Empty <KeyValuePair <object, object> >()).ValueComparer);
Assert.Same(EqualityComparer <int> .Default, ImmutableTreeDictionary.CreateRange <int, int>(keyComparer: null, Enumerable.Empty <KeyValuePair <int, int> >()).KeyComparer);
Assert.Same(EqualityComparer <int> .Default, ImmutableTreeDictionary.CreateRange <int, int>(keyComparer: null, Enumerable.Empty <KeyValuePair <int, int> >()).ValueComparer);
Assert.Same(EqualityComparer <IComparable> .Default, ImmutableTreeDictionary.CreateRange <IComparable, IComparable>(keyComparer: null, Enumerable.Empty <KeyValuePair <IComparable, IComparable> >()).KeyComparer);
Assert.Same(EqualityComparer <IComparable> .Default, ImmutableTreeDictionary.CreateRange <IComparable, IComparable>(keyComparer: null, Enumerable.Empty <KeyValuePair <IComparable, IComparable> >()).ValueComparer);
Assert.Same(EqualityComparer <object> .Default, ImmutableTreeDictionary.Create <object, object>(keyComparer: null, valueComparer: null).KeyComparer);
Assert.Same(EqualityComparer <object> .Default, ImmutableTreeDictionary.Create <object, object>(keyComparer: null, valueComparer: null).ValueComparer);
Assert.Same(EqualityComparer <int> .Default, ImmutableTreeDictionary.Create <int, int>(keyComparer: null, valueComparer: null).KeyComparer);
Assert.Same(EqualityComparer <int> .Default, ImmutableTreeDictionary.Create <int, int>(keyComparer: null, valueComparer: null).ValueComparer);
Assert.Same(EqualityComparer <IComparable> .Default, ImmutableTreeDictionary.Create <IComparable, IComparable>(keyComparer: null, valueComparer: null).KeyComparer);
Assert.Same(EqualityComparer <IComparable> .Default, ImmutableTreeDictionary.Create <IComparable, IComparable>(keyComparer: null, valueComparer: null).ValueComparer);
Assert.Same(EqualityComparer <object> .Default, ImmutableTreeDictionary.CreateRange <object, object>(keyComparer: null, valueComparer: null, Enumerable.Empty <KeyValuePair <object, object> >()).KeyComparer);
Assert.Same(EqualityComparer <object> .Default, ImmutableTreeDictionary.CreateRange <object, object>(keyComparer: null, valueComparer: null, Enumerable.Empty <KeyValuePair <object, object> >()).ValueComparer);
Assert.Same(EqualityComparer <int> .Default, ImmutableTreeDictionary.CreateRange <int, int>(keyComparer: null, valueComparer: null, Enumerable.Empty <KeyValuePair <int, int> >()).KeyComparer);
Assert.Same(EqualityComparer <int> .Default, ImmutableTreeDictionary.CreateRange <int, int>(keyComparer: null, valueComparer: null, Enumerable.Empty <KeyValuePair <int, int> >()).ValueComparer);
Assert.Same(EqualityComparer <IComparable> .Default, ImmutableTreeDictionary.CreateRange <IComparable, IComparable>(keyComparer: null, valueComparer: null, Enumerable.Empty <KeyValuePair <IComparable, IComparable> >()).KeyComparer);
Assert.Same(EqualityComparer <IComparable> .Default, ImmutableTreeDictionary.CreateRange <IComparable, IComparable>(keyComparer: null, valueComparer: null, Enumerable.Empty <KeyValuePair <IComparable, IComparable> >()).ValueComparer);
}
public void TestExplicitComparer()
{
ZeroHashCodeEqualityComparer <object> objComparer = ZeroHashCodeEqualityComparer <object> .Default;
ZeroHashCodeEqualityComparer <int> intComparer = ZeroHashCodeEqualityComparer <int> .Default;
ZeroHashCodeEqualityComparer <IComparable> comparableComparer = ZeroHashCodeEqualityComparer <IComparable> .Default;
Assert.Same(objComparer, ImmutableTreeDictionary.Create <object, int>(keyComparer: objComparer).KeyComparer);
Assert.Same(intComparer, ImmutableTreeDictionary.Create <int, int>(keyComparer: intComparer).KeyComparer);
Assert.Same(comparableComparer, ImmutableTreeDictionary.Create <IComparable, int>(keyComparer: comparableComparer).KeyComparer);
Assert.Same(objComparer, ImmutableTreeDictionary.CreateRange <object, int>(keyComparer: objComparer, Enumerable.Empty <KeyValuePair <object, int> >()).KeyComparer);
Assert.Same(intComparer, ImmutableTreeDictionary.CreateRange <int, int>(keyComparer: intComparer, Enumerable.Empty <KeyValuePair <int, int> >()).KeyComparer);
Assert.Same(comparableComparer, ImmutableTreeDictionary.CreateRange <IComparable, int>(keyComparer: comparableComparer, Enumerable.Empty <KeyValuePair <IComparable, int> >()).KeyComparer);
Assert.Same(EqualityComparer <object> .Default, ImmutableTreeDictionary.Create <object, object>(keyComparer: null, valueComparer: objComparer).KeyComparer);
Assert.Same(objComparer, ImmutableTreeDictionary.Create <object, object>(keyComparer: null, valueComparer: objComparer).ValueComparer);
Assert.Same(EqualityComparer <object> .Default, ImmutableTreeDictionary.Create <object, object>().Add(new object(), null !).WithComparers(keyComparer: null, valueComparer: objComparer).KeyComparer);
Assert.Same(objComparer, ImmutableTreeDictionary.Create <object, object>().Add(new object(), null !).WithComparers(keyComparer: null, valueComparer: objComparer).ValueComparer);
}
public void TestImmutableTreeDictionaryCreateRangeValidation()
{
Assert.Throws <ArgumentNullException>("items", () => ImmutableTreeDictionary.CreateRange <string, int>(null !));
Assert.Throws <ArgumentNullException>("items", () => ImmutableTreeDictionary.CreateRange <string, int>(EqualityComparer <string> .Default, null !));
Assert.Throws <ArgumentNullException>("items", () => ImmutableTreeDictionary.CreateRange <string, int>(EqualityComparer <string> .Default, EqualityComparer <int> .Default, null !));
Assert.Throws <ArgumentNullException>("items", () => default(IEnumerable <KeyValuePair <string, int> >) !.ToImmutableTreeDictionary());
Assert.Throws <ArgumentNullException>("items", () => default(IEnumerable <KeyValuePair <string, int> >) !.ToImmutableTreeDictionary(EqualityComparer <string> .Default));
Assert.Throws <ArgumentNullException>("items", () => default(IEnumerable <KeyValuePair <string, int> >) !.ToImmutableTreeDictionary(EqualityComparer <string> .Default, EqualityComparer <int> .Default));
Assert.Throws <ArgumentNullException>("source", () => default(IEnumerable <KeyValuePair <string, int> >) !.ToImmutableTreeDictionary(x => x));
Assert.Throws <ArgumentNullException>("source", () => default(IEnumerable <KeyValuePair <string, int> >) !.ToImmutableTreeDictionary(x => x.Key, EqualityComparer <string> .Default));
Assert.Throws <ArgumentNullException>("source", () => default(IEnumerable <KeyValuePair <string, int> >) !.ToImmutableTreeDictionary(x => x.Key, x => x.Value, EqualityComparer <string> .Default));
Assert.Throws <ArgumentNullException>("source", () => default(IEnumerable <KeyValuePair <string, int> >) !.ToImmutableTreeDictionary(x => x.Key, x => x.Value, EqualityComparer <string> .Default, EqualityComparer <int> .Default));
Assert.Throws <ArgumentNullException>("keySelector", () => Enumerable.Empty <KeyValuePair <string, int> >().ToImmutableTreeDictionary(keySelector: null !, EqualityComparer <string> .Default));
Assert.Throws <ArgumentNullException>("keySelector", () => Enumerable.Empty <KeyValuePair <string, int> >().ToImmutableTreeDictionary(keySelector: null !, x => x.Value, EqualityComparer <string> .Default));
Assert.Throws <ArgumentNullException>("keySelector", () => Enumerable.Empty <KeyValuePair <string, int> >().ToImmutableTreeDictionary(keySelector: null !, x => x.Value, EqualityComparer <string> .Default, EqualityComparer <int> .Default));
Assert.Throws <ArgumentNullException>("elementSelector", () => Enumerable.Empty <KeyValuePair <string, int> >().ToImmutableTreeDictionary <KeyValuePair <string, int>, string, int>(x => x.Key, elementSelector: null !, EqualityComparer <string> .Default));
Assert.Throws <ArgumentNullException>("elementSelector", () => Enumerable.Empty <KeyValuePair <string, int> >().ToImmutableTreeDictionary(x => x.Key, elementSelector: null !, EqualityComparer <string> .Default, EqualityComparer <int> .Default));
}
public void TestIDictionary()
{
IDictionary dictionary = ImmutableTreeDictionary.CreateBuilder <int, int>();
Assert.False(dictionary.IsFixedSize);
Assert.False(dictionary.IsReadOnly);
Assert.False(dictionary.IsSynchronized);
Assert.Throws <ArgumentNullException>("key", () => dictionary.Add(key: null !, value: 1));
Assert.Throws <ArgumentException>("value", () => dictionary.Add(key: 1, value: null));
Assert.Throws <ArgumentException>("key", () => dictionary.Add(key: "string value", value: 0));
Assert.Throws <ArgumentException>("value", () => dictionary.Add(key: 0, value: "string value"));
for (int i = 0; i < 11; i++)
{
dictionary.Add(i, i + 1);
}
// Adding the same key/value pair does not throw or change the collection size
Assert.Equal(11, dictionary.Count);
dictionary.Add(10, 11);
Assert.Equal(11, dictionary.Count);
Assert.Throws <ArgumentNullException>("key", () => dictionary[key: null !]);
public void TestIDictionaryT()
{
IDictionary <int, int> dictionary = ImmutableTreeDictionary.CreateBuilder <int, int>();
for (int i = 0; i < 10; i++)
{
dictionary.Add(i, i);
}
Assert.Equal(Enumerable.Range(0, 10).Select(x => new KeyValuePair <int, int>(x, x)), dictionary);
Assert.Equal(10, dictionary.Count);
Assert.False(dictionary.IsReadOnly);
Assert.Equal(10, dictionary.Keys.Count);
Assert.False(dictionary.Keys.IsReadOnly);
Assert.Equal(10, dictionary.Values.Count);
Assert.False(dictionary.Values.IsReadOnly);
// Adding the same key/value pair does not throw or change the collection size
Assert.Equal(10, dictionary.Count);
Assert.Throws <ArgumentException>(() => dictionary.Add(9, 10));
dictionary.Add(9, 9);
Assert.Equal(10, dictionary.Count);
Assert.Equal(Enumerable.Range(0, 10), dictionary.Keys);
Assert.Equal(Enumerable.Range(0, 10), dictionary.Values);
Assert.Throws <NotSupportedException>(() => dictionary.Values.Remove(9));
Assert.False(dictionary.Keys.Remove(10));
Assert.True(dictionary.Keys.Remove(9));
Assert.Equal(9, dictionary.Count);
Assert.Equal(9, dictionary.Keys.Count);
Assert.False(dictionary.Keys.IsReadOnly);
Assert.Equal(9, dictionary.Values.Count);
Assert.False(dictionary.Values.IsReadOnly);
Assert.Equal(Enumerable.Range(0, 9), dictionary.Keys);
Assert.Equal(Enumerable.Range(0, 9), dictionary.Values);
Assert.Throws <NotSupportedException>(() => dictionary.Keys.Add(0));
Assert.Throws <ArgumentNullException>("array", () => dictionary.Keys.CopyTo(null !, 0));
Assert.Throws <ArgumentOutOfRangeException>("arrayIndex", () => dictionary.Keys.CopyTo(new int[dictionary.Count], -1));
Assert.Throws <ArgumentOutOfRangeException>("arrayIndex", () => dictionary.Keys.CopyTo(new int[dictionary.Count], dictionary.Count + 1));
Assert.Throws <ArgumentException>(() => dictionary.Keys.CopyTo(new int[dictionary.Count], 1));
IEnumerator <KeyValuePair <int, int> > enumerator = dictionary.GetEnumerator();
Assert.NotNull(enumerator);
Assert.True(enumerator.MoveNext());
Assert.Equal(new KeyValuePair <int, int>(0, 0), enumerator.Current);
Assert.True(enumerator.MoveNext());
Assert.Equal(new KeyValuePair <int, int>(1, 1), enumerator.Current);
enumerator.Reset();
Assert.True(enumerator.MoveNext());
Assert.Equal(new KeyValuePair <int, int>(0, 0), enumerator.Current);
IEnumerator <int> keyEnumerator = dictionary.Keys.GetEnumerator();
Assert.NotNull(keyEnumerator);
Assert.True(keyEnumerator.MoveNext());
Assert.Equal(0, keyEnumerator.Current);
Assert.True(keyEnumerator.MoveNext());
Assert.Equal(1, keyEnumerator.Current);
keyEnumerator.Reset();
Assert.True(keyEnumerator.MoveNext());
Assert.Equal(0, keyEnumerator.Current);
Assert.Throws <NotSupportedException>(() => dictionary.Values.Add(0));
Assert.Throws <ArgumentNullException>("array", () => dictionary.Values.CopyTo(null !, 0));
Assert.Throws <ArgumentOutOfRangeException>("arrayIndex", () => dictionary.Values.CopyTo(new int[dictionary.Count], -1));
Assert.Throws <ArgumentOutOfRangeException>("arrayIndex", () => dictionary.Values.CopyTo(new int[dictionary.Count], dictionary.Count + 1));
Assert.Throws <ArgumentException>(() => dictionary.Values.CopyTo(new int[dictionary.Count], 1));
IEnumerator <int> valueEnumerator = dictionary.Values.GetEnumerator();
Assert.NotNull(valueEnumerator);
Assert.True(valueEnumerator.MoveNext());
Assert.Equal(0, valueEnumerator.Current);
Assert.True(valueEnumerator.MoveNext());
Assert.Equal(1, valueEnumerator.Current);
valueEnumerator.Reset();
Assert.True(valueEnumerator.MoveNext());
Assert.Equal(0, valueEnumerator.Current);
IReadOnlyDictionary <int, int> readOnlyDictionary = (IReadOnlyDictionary <int, int>)dictionary;
Assert.Equal(dictionary.Keys, readOnlyDictionary.Keys);
Assert.Equal(dictionary.Values, readOnlyDictionary.Values);
dictionary.Add(new KeyValuePair <int, int>(11, 11));
Assert.Equal(11, dictionary[11]);
Assert.True(dictionary.Contains(new KeyValuePair <int, int>(11, 11)));
Assert.False(dictionary.Contains(new KeyValuePair <int, int>(11, 12)));
Assert.False(dictionary.Contains(new KeyValuePair <int, int>(12, 12)));
Assert.False(dictionary.Remove(new KeyValuePair <int, int>(11, 12)));
Assert.True(dictionary.Contains(new KeyValuePair <int, int>(11, 11)));
Assert.True(dictionary.Remove(new KeyValuePair <int, int>(11, 11)));
Assert.False(dictionary.Contains(new KeyValuePair <int, int>(11, 11)));
Assert.NotEmpty(dictionary);
dictionary.Keys.Clear();
Assert.Empty(dictionary);
Assert.Empty(dictionary.Keys);
Assert.Empty(dictionary.Values);
dictionary[0] = 1;
Assert.NotEmpty(dictionary);
dictionary.Values.Clear();
Assert.Empty(dictionary);
Assert.Empty(dictionary.Keys);
Assert.Empty(dictionary.Values);
}
public void TestImmutableTreeDictionaryConstructor()
{
ImmutableTreeDictionary <int, int> .Builder dictionary = ImmutableTreeDictionary.CreateBuilder <int, int>();
Assert.Empty(dictionary);
}