public void IsNull_IsNotNull_false_on_not_null_nullable()
{
Nullable <int> obj = 12;
Assert.True(!obj.IsNull() && obj.IsNotNull());
}
public void IsNull_IsNotNull_true_on_null_nullable()
{
Nullable <int> obj = null;
Assert.True(obj.IsNull() && !obj.IsNotNull());
}
