public void TestTryGetKey()
{
ImmutableSortedTreeDictionary <int, int> .Builder dictionary = ImmutableSortedTreeDictionary.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 TestGetValueOrDefault()
{
ImmutableSortedTreeDictionary <int, int> .Builder dictionary = ImmutableSortedTreeDictionary.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 TestRemoveRange()
{
ImmutableSortedTreeDictionary <int, int> .Builder dictionary = ImmutableSortedTreeDictionary.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 !));
}