public void Test_S1IntervalTestBase_Complement()
{
Assert.True(empty.Complement().IsFull());
Assert.True(full.Complement().IsEmpty());
Assert.True(pi.Complement().IsFull());
Assert.True(mipi.Complement().IsFull());
Assert.True(zero.Complement().IsFull());
Assert.True(quad12.Complement().ApproxEquals(quad34));
Assert.True(quad34.Complement().ApproxEquals(quad12));
Assert.True(quad123.Complement().ApproxEquals(quad4));
}