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())));
}
