public void constraintName()
{
DataTable dtParent = DataProvider.CreateParentDataTable();
UniqueConstraint uc = null;
uc = new UniqueConstraint(dtParent.Columns[0]);
// default
Assert.Equal(string.Empty, uc.ConstraintName);
uc.ConstraintName = "myConstraint";
// set/get
Assert.Equal("myConstraint", uc.ConstraintName);
}