public void TestSymmetricExcept()
{
IImmutableSet <int> set = CreateSet <int>();
IImmutableSet <int> second = CreateSet <int>();
Assert.Throws <ArgumentNullException>(() => set.SymmetricExcept(null));
// Test behavior when the current set is empty
set = set.SymmetricExcept(TransformEnumerableForSetOperation(new[] { 1, 5, 3 }));
second = second.Union(TransformEnumerableForSetOperation(new[] { 1, 5, 3 }));
Assert.Equal(second.ToArray(), set);
// Test SymmetricExceptWith self
Assert.NotEmpty(set);
set = set.SymmetricExcept(TransformEnumerableForSetOperation(set));
Assert.Empty(set);
set = set.SymmetricExcept(TransformEnumerableForSetOperation(set));
Assert.Empty(set);
// Test SymmetricExceptWith same set type
IImmutableSet <int> other = CreateSet <int>();
set = set.Union(TransformEnumerableForSetOperation(new[] { 1, 3, 5 }));
other = other.Union(TransformEnumerableForSetOperation(new[] { 3, 5, 7 }));
set = set.SymmetricExcept(TransformEnumerableForSetOperation(other));
Assert.Equal(new[] { 1, 7 }, set);
// Test SymmetricExceptWith same set type
set = set.Clear();
other = CreateSet <int>();
set = set.Union(TransformEnumerableForSetOperation(new[] { 1, 3, 5 }));
other = other.Union(TransformEnumerableForSetOperation(new[] { 3, 5, 7 }));
set = set.SymmetricExcept(TransformEnumerableForSetOperation(other.ToArray()));
Assert.Equal(new[] { 1, 7 }, set);
}
public void TestIsSupersetOf()
{
IImmutableSet <int> set = CreateSet <int>();
Assert.Throws <ArgumentNullException>(() => set.IsSupersetOf(null));
// Test IsSupersetOf self
set = set.Add(1);
Assert.True(set.IsSupersetOf(TransformEnumerableForSetOperation(set)));
Assert.True(set.IsSupersetOf(TransformEnumerableForSetOperation(set.ToArray())));
// Test IsSupersetOf empty
Assert.NotEmpty(set);
Assert.True(set.IsSupersetOf(TransformEnumerableForSetOperation(new int[0])));
// Test IsSupersetOf array
set = set.Union(TransformEnumerableForSetOperation(Enumerable.Range(0, 10)));
Assert.True(set.IsSupersetOf(TransformEnumerableForSetOperation(new[] { 1, 3, 5, 7, 9 })));
Assert.False(set.IsSupersetOf(TransformEnumerableForSetOperation(new[] { 1, 3, 11, 5, 7, 9 })));
Assert.True(set.IsSupersetOf(TransformEnumerableForSetOperation(Enumerable.Range(0, 10))));
// Test IsSupersetOf same set type
set = set.Clear();
set = set.Union(TransformEnumerableForSetOperation(Enumerable.Range(3, 5)));
IImmutableSet <int> other = CreateSet <int>();
other = other.Union(TransformEnumerableForSetOperation(new[] { 3, 5 }));
Assert.True(set.IsSupersetOf(TransformEnumerableForSetOperation(other)));
Assert.False(other.IsSupersetOf(TransformEnumerableForSetOperation(set)));
other = other.Remove(5);
other = other.Add(8);
Assert.True(set.Count > other.Count);
Assert.False(set.IsSupersetOf(TransformEnumerableForSetOperation(other)));
}
public void TestIsSubsetOf()
{
IImmutableSet <int> set = CreateSet <int>();
Assert.Throws <ArgumentNullException>(() => set.IsSubsetOf(null));
// Return without iterating if the set is already empty
Assert.True(set.IsSubsetOf(EverythingThrowsEnumerable <int> .Instance));
// Test IsSubsetOf self
set = set.Add(1);
Assert.True(set.IsSubsetOf(TransformEnumerableForSetOperation(set)));
Assert.True(set.IsSubsetOf(TransformEnumerableForSetOperation(set.ToArray())));
// Test IsSubsetOf array
set = set.Union(TransformEnumerableForSetOperation(new[] { 3, 5, 7 }));
Assert.True(set.IsSubsetOf(TransformEnumerableForSetOperation(new[] { 1, 3, 5, 7, 9 })));
Assert.False(set.IsSubsetOf(TransformEnumerableForSetOperation(new[] { 1, 3, 7, 9 })));
Assert.True(set.IsSubsetOf(TransformEnumerableForSetOperation(Enumerable.Range(0, 10))));
// Test IsSubsetOf same set type
set = set.Clear();
set = set.Union(TransformEnumerableForSetOperation(new[] { 3, 5 }));
IImmutableSet <int> other = CreateSet <int>();
other = other.Union(TransformEnumerableForSetOperation(Enumerable.Range(3, 5)));
Assert.True(set.IsSubsetOf(TransformEnumerableForSetOperation(other)));
Assert.False(other.IsSubsetOf(TransformEnumerableForSetOperation(set)));
set = set.Remove(5);
set = set.Add(8);
Assert.True(set.Count < other.Count);
Assert.False(set.IsSubsetOf(TransformEnumerableForSetOperation(other)));
}
public void TestIsProperSubsetOf()
{
IImmutableSet <int> set = CreateSet <int>();
Assert.Throws <ArgumentNullException>(() => set.IsProperSubsetOf(null));
// Test behavior when the current set is empty
Assert.False(set.IsProperSubsetOf(TransformEnumerableForSetOperation(Enumerable.Empty <int>())));
Assert.True(set.IsProperSubsetOf(TransformEnumerableForSetOperation(Enumerable.Range(0, 1))));
// Test IsProperSubsetOf self
set = set.Add(1);
Assert.False(set.IsProperSubsetOf(TransformEnumerableForSetOperation(set)));
Assert.False(set.IsProperSubsetOf(TransformEnumerableForSetOperation(set.ToArray())));
// Test IsProperSubsetOf array
set = set.Union(new[] { 3, 5, 7 });
Assert.True(set.IsProperSubsetOf(TransformEnumerableForSetOperation(new[] { 1, 3, 5, 7, 9 })));
Assert.False(set.IsProperSubsetOf(TransformEnumerableForSetOperation(new[] { 1, 3, 7, 9 })));
Assert.True(set.IsProperSubsetOf(TransformEnumerableForSetOperation(Enumerable.Range(0, 10))));
// Test IsProperSubsetOf same set type
set = set.Clear();
set = set.Union(TransformEnumerableForSetOperation(new[] { 3, 5 }));
IImmutableSet <int> other = CreateSet <int>();
other = other.Union(TransformEnumerableForSetOperation(Enumerable.Range(3, 5)));
Assert.True(set.IsProperSubsetOf(TransformEnumerableForSetOperation(other)));
Assert.False(other.IsProperSubsetOf(TransformEnumerableForSetOperation(set)));
set = set.Remove(5);
set = set.Add(8);
Assert.True(set.Count < other.Count);
Assert.False(set.IsProperSubsetOf(TransformEnumerableForSetOperation(other)));
}
/// <summary>
/// Tests various aspects of a set. This should be called only from the unordered or sorted overloads of this method.
/// </summary>
/// <typeparam name="T">The type of element stored in the set.</typeparam>
/// <param name="emptySet">The empty set.</param>
protected void EmptyTestHelper <T>(IImmutableSet <T> emptySet)
{
Contract.Requires(emptySet != null);
Assert.Equal(0, emptySet.Count); //, "Empty set should have a Count of 0");
Assert.Equal(0, emptySet.Count()); //, "Enumeration of an empty set yielded elements.");
Assert.Same(emptySet, emptySet.Clear());
}
public void TestSetEquals()
{
IImmutableSet <int> set = CreateSet <int>();
Assert.Throws <ArgumentNullException>(() => set.SetEquals(null));
// Test behavior when the current set is empty
Assert.True(set.SetEquals(TransformEnumerableForSetOperation(Enumerable.Empty <int>())));
Assert.False(set.SetEquals(TransformEnumerableForSetOperation(Enumerable.Range(0, 1))));
// Test SetEquals self
Assert.True(set.SetEquals(TransformEnumerableForSetOperation(set)));
// Test with same set type
set = set.Union(TransformEnumerableForSetOperation(Enumerable.Range(0, 10)));
IImmutableSet <int> other = CreateSet <int>();
other = other.Union(TransformEnumerableForSetOperation(Enumerable.Range(0, 10)));
Assert.True(set.SetEquals(TransformEnumerableForSetOperation(other)));
other = other.Remove(0);
Assert.False(set.SetEquals(TransformEnumerableForSetOperation(other)));
other = other.Add(-1);
Assert.False(set.SetEquals(TransformEnumerableForSetOperation(other)));
other = other.Remove(-1);
other = other.Add(0);
other = other.Remove(8);
Assert.False(set.SetEquals(TransformEnumerableForSetOperation(other)));
other = other.Add(11);
Assert.False(set.SetEquals(TransformEnumerableForSetOperation(other)));
// Test with different set type
set = set.Clear();
other = other.Clear();
set = set.Union(TransformEnumerableForSetOperation(Enumerable.Range(0, 10)));
other = other.Union(TransformEnumerableForSetOperation(Enumerable.Range(0, 10)));
Assert.True(set.SetEquals(TransformEnumerableForSetOperation(other.ToArray())));
Assert.True(set.SetEquals(TransformEnumerableForSetOperation(other.Concat(other).ToArray())));
other = other.Remove(0);
Assert.False(set.SetEquals(TransformEnumerableForSetOperation(other.ToArray())));
other = other.Add(-1);
Assert.False(set.SetEquals(TransformEnumerableForSetOperation(other.ToArray())));
other = other.Remove(-1);
other = other.Add(0);
other = other.Remove(8);
Assert.False(set.SetEquals(TransformEnumerableForSetOperation(other.ToArray())));
other = other.Add(11);
Assert.False(set.SetEquals(TransformEnumerableForSetOperation(other.ToArray())));
}
protected void TryGetValueTestHelper(IImmutableSet <string> set)
{
Requires.NotNull(set, "set");
string expected = "egg";
set = set.Add(expected);
string actual;
string lookupValue = expected.ToUpperInvariant();
Assert.True(set.TryGetValue(lookupValue, out actual));
Assert.Same(expected, actual);
Assert.False(set.TryGetValue("foo", out actual));
Assert.Equal("foo", actual);
Assert.False(set.Clear().TryGetValue("nonexistent", out actual));
Assert.Equal("nonexistent", actual);
}
public ElementSet Clear()
{
return(new ElementSet(_immutableSetImplementation.Clear()));
}
public IImmutableSet <T> Clear() => _set.Clear().ToStructural(0);
protected override IImmutableSet <T> Clear(IImmutableSet <T> values, ISerializationContext context) => values.Clear();
