public void AutoIncrementStep()
{
DataColumn dc;
dc = new DataColumn("ColName", typeof(string));
// Checking default value 1
Assert.Equal(1, dc.AutoIncrementStep);
//Cheking Set
dc.AutoIncrementStep = long.MaxValue;
// Checking Get MaxValue
Assert.Equal(long.MaxValue, dc.AutoIncrementStep);
//Cheking Set
dc.AutoIncrementStep = long.MinValue;
// Checking Get MinValue
Assert.Equal(long.MinValue, dc.AutoIncrementStep);
}