System.Data.Tests.ConstraintCollectionTest.AddUniqueExceptions C# (CSharp) Метод

        public void AddUniqueExceptions()
        {
            //UC: can't create unique constraint because duplicate values already exist
            _table.Rows.Add(new object[] { 1 });
            _table.Rows.Add(new object[] { 1 });
            var uc = new UniqueConstraint(_table.Columns[0]);
            Assert.Throws<ArgumentException>(() => _table.Constraints.Add(uc));
        }