private void Validate_IntersectWith(ISet <T> set, IEnumerable <T> enumerable)
{
if (set.Count == 0 || Enumerable.Count(enumerable) == 0)
{
set.IntersectWith(enumerable);
Assert.Equal(0, set.Count);
}
else if (set == enumerable)
{
PooledSet <T> beforeOperation = new PooledSet <T>(set, GetIEqualityComparer());
RegisterForDispose(beforeOperation);
set.IntersectWith(enumerable);
Assert.True(beforeOperation.SetEquals(set));
}
else
{
IEqualityComparer <T> comparer = GetIEqualityComparer();
PooledSet <T> expected = new PooledSet <T>(comparer);
RegisterForDispose(expected);
foreach (T value in set)
{
if (enumerable.Contains(value, comparer))
{
expected.Add(value);
}
}
set.IntersectWith(enumerable);
Assert.Equal(expected.Count, set.Count);
Assert.True(expected.SetEquals(set));
}
}
public void HashSet_Generic_Constructor_IEnumerable(EnumerableType enumerableType, int setLength, int enumerableLength, int numberOfMatchingElements, int numberOfDuplicateElements)
{
IEnumerable <T> enumerable = CreateEnumerable(enumerableType, null, enumerableLength, 0, numberOfDuplicateElements);
PooledSet <T> set = new PooledSet <T>(enumerable);
Assert.True(set.SetEquals(enumerable));
}
public void IEnumerable_Generic_Serialize_Deserialize(int count)
{
if (!SupportsSerialization)
{
return;
}
IEnumerable <T> enumerable = GenericIEnumerableFactory(count);
var formatter = new BinaryFormatter();
using (var stream = new MemoryStream())
{
formatter.Serialize(stream, enumerable);
stream.Position = 0L;
var copy = (IEnumerable <T>)formatter.Deserialize(stream);
Assert.NotSame(enumerable, copy);
Assert.Equal(enumerable.Count(), copy.Count());
// We can't compare contents, because Dictionary/Set might not
// return items in the same order. Use a PooledSet to compare content
// without regard to order:
using (var set = new PooledSet <T>(enumerable))
{
Assert.True(set.SetEquals(copy), "Deserialized content differs!");
}
if (copy is IDisposable disposable)
{
disposable.Dispose();
}
}
}
public void SetComparer_SetEqualsTests()
{
List <T> objects = new List <T>()
{
CreateT(1), CreateT(2), CreateT(3), CreateT(4), CreateT(5), CreateT(6)
};
var set = new PooledSet <PooledSet <T> >()
{
RegisterForDispose(new PooledSet <T> {
objects[0], objects[1], objects[2]
}),
RegisterForDispose(new PooledSet <T> {
objects[3], objects[4], objects[5]
})
};
RegisterForDispose(set);
var noComparerSet = new PooledSet <PooledSet <T> >()
{
RegisterForDispose(new PooledSet <T> {
objects[0], objects[1], objects[2]
}),
RegisterForDispose(new PooledSet <T> {
objects[3], objects[4], objects[5]
})
};
RegisterForDispose(noComparerSet);
var comparerSet1 = new PooledSet <PooledSet <T> >(PooledSet <T> .CreateSetComparer())
{
RegisterForDispose(new PooledSet <T> {
objects[0], objects[1], objects[2]
}),
RegisterForDispose(new PooledSet <T> {
objects[3], objects[4], objects[5]
})
};
RegisterForDispose(comparerSet1);
var comparerSet2 = new PooledSet <PooledSet <T> >(PooledSet <T> .CreateSetComparer())
{
RegisterForDispose(new PooledSet <T> {
objects[3], objects[4], objects[5]
}),
RegisterForDispose(new PooledSet <T> {
objects[0], objects[1], objects[2]
})
};
RegisterForDispose(comparerSet2);
Assert.False(noComparerSet.SetEquals(set));
Assert.True(comparerSet1.SetEquals(set));
Assert.True(comparerSet2.SetEquals(set));
}
public void HashSet_Generic_Constructor_IEnumerable_IEqualityComparer(EnumerableType enumerableType, int setLength, int enumerableLength, int numberOfMatchingElements, int numberOfDuplicateElements)
{
IEnumerable <T> enumerable = CreateEnumerable(enumerableType, null, enumerableLength, 0, 0);
PooledSet <T> set = new PooledSet <T>(enumerable, GetIEqualityComparer());
RegisterForDispose(set);
Assert.True(set.SetEquals(enumerable));
}
public void HashSet_Generic_Constructor_IEnumerable_WithManyDuplicates(int count)
{
IEnumerable <T> items = CreateEnumerable(EnumerableType.List, null, count, 0, 0);
PooledSet <T> hashSetFromDuplicates = new PooledSet <T>(Enumerable.Range(0, 40).SelectMany(i => items).ToArray());
PooledSet <T> hashSetFromNoDuplicates = new PooledSet <T>(items);
RegisterForDispose(hashSetFromDuplicates, hashSetFromNoDuplicates);
Assert.True(hashSetFromNoDuplicates.SetEquals(hashSetFromDuplicates));
}
public void HashSet_Generic_TrimExcess_Repeatedly(int setLength)
{
PooledSet <T> set = (PooledSet <T>)GenericISetFactory(setLength);
List <T> expected = set.ToList();
set.TrimExcess();
set.TrimExcess();
set.TrimExcess();
Assert.True(set.SetEquals(expected));
}
private void Validate_SetEquals(PooledSet <T> set, Span <T> span)
{
IEqualityComparer <T> comparer = set.Comparer;
foreach (T value in set)
{
if (!SpanContains(span, value, comparer))
{
Assert.False(set.SetEquals(span));
return;
}
}
foreach (T value in span)
{
if (!set.Contains(value, comparer))
{
Assert.False(set.SetEquals(span));
return;
}
}
Assert.True(set.SetEquals(span));
}
public void HashSet_Generic_Constructor_HashSet_SparselyFilled(int count)
{
PooledSet <T> source = (PooledSet <T>)CreateEnumerable(EnumerableType.HashSet, null, count, 0, 0);
List <T> sourceElements = source.ToList();
foreach (int i in NonSquares(count))
{
source.Remove(sourceElements[i]);// Unevenly spaced survivors increases chance of catching any spacing-related bugs.
}
PooledSet <T> set = new PooledSet <T>(source, GetIEqualityComparer());
RegisterForDispose(set);
Assert.True(set.SetEquals(source));
}
public void HashSet_Generic_TrimExcess_AfterRemovingOneElement(int setLength)
{
if (setLength > 0)
{
PooledSet <T> set = (PooledSet <T>)GenericISetFactory(setLength);
List <T> expected = set.ToList();
T elementToRemove = set.ElementAt(0);
set.TrimExcess();
Assert.True(set.Remove(elementToRemove));
expected.Remove(elementToRemove);
set.TrimExcess();
Assert.True(set.SetEquals(expected));
}
}
private void Validate_UnionWith(ISet <T> set, IEnumerable <T> enumerable)
{
IEqualityComparer <T> comparer = GetIEqualityComparer();
PooledSet <T> expected = new PooledSet <T>(set, comparer);
RegisterForDispose(expected);
foreach (T element in enumerable)
{
if (!set.Contains(element, comparer))
{
expected.Add(element);
}
}
set.UnionWith(enumerable);
Assert.Equal(expected.Count, set.Count);
Assert.True(expected.SetEquals(set));
}
private void Validate_UnionWith(PooledSet <T> set, Span <T> span)
{
IEqualityComparer <T> comparer = set.Comparer;
PooledSet <T> expected = new PooledSet <T>(set, comparer);
RegisterForDispose(expected);
foreach (T element in span)
{
if (!set.Contains(element))
{
expected.Add(element);
}
}
set.UnionWith(span);
Assert.Equal(expected.Count, set.Count);
Assert.True(expected.SetEquals(set));
}
private void Validate_ExceptWith(ISet <T> set, IEnumerable <T> enumerable)
{
if (set.Count == 0 || enumerable == set)
{
set.ExceptWith(enumerable);
Assert.Equal(0, set.Count);
}
else
{
PooledSet <T> expected = new PooledSet <T>(set, GetIEqualityComparer());
RegisterForDispose(expected);
foreach (T element in enumerable)
{
expected.Remove(element);
}
set.ExceptWith(enumerable);
Assert.Equal(expected.Count, set.Count);
Assert.True(expected.SetEquals(set));
}
}
private void Validate_ExceptWith(PooledSet <T> set, Span <T> span)
{
if (set.Count == 0)
{
set.ExceptWith(span);
Assert.Equal(0, set.Count);
}
else
{
PooledSet <T> expected = new PooledSet <T>(set, set.Comparer);
RegisterForDispose(expected);
foreach (T element in span)
{
expected.Remove(element);
}
set.ExceptWith(span);
Assert.Equal(expected.Count, set.Count);
Assert.True(expected.SetEquals(set));
}
}
public void ISet_Generic_SymmetricExceptWith_AfterRemovingElements(EnumerableType enumerableType, int setLength, int enumerableLength, int numberOfMatchingElements, int numberOfDuplicateElements)
{
ISet <T> set = GenericISetFactory(setLength);
T value = CreateT(532);
if (!set.Contains(value))
{
set.Add(value);
}
set.Remove(value);
IEnumerable <T> enumerable = CreateEnumerable(enumerableType, set, enumerableLength, numberOfMatchingElements, numberOfDuplicateElements);
Debug.Assert(enumerable != null);
IEqualityComparer <T> comparer = GetIEqualityComparer();
PooledSet <T> expected = new PooledSet <T>(comparer);
RegisterForDispose(expected);
foreach (T element in enumerable)
{
if (!set.Contains(element, comparer))
{
expected.Add(element);
}
}
foreach (T element in set)
{
if (!enumerable.Contains(element, comparer))
{
expected.Add(element);
}
}
set.SymmetricExceptWith(enumerable);
Assert.Equal(expected.Count, set.Count);
Assert.True(expected.SetEquals(set));
}
private void Validate_IntersectWith(PooledSet <T> set, Span <T> span)
{
if (set.Count == 0 || span.Length == 0)
{
set.IntersectWith(span);
Assert.Equal(0, set.Count);
}
else
{
IEqualityComparer <T> comparer = set.Comparer;
PooledSet <T> expected = new PooledSet <T>(comparer);
RegisterForDispose(expected);
foreach (T value in set)
{
if (SpanContains(span, value, comparer))
{
expected.Add(value);
}
}
set.IntersectWith(span);
Assert.Equal(expected.Count, set.Count);
Assert.True(expected.SetEquals(set));
}
}
