public void IndexOf_BehavesAsExpected()
{
var item1 = new SqlBulkCopyColumnMapping(0, 0);
var item2 = new SqlBulkCopyColumnMapping(1, 1);
var item3 = new SqlBulkCopyColumnMapping(2, 2);
SqlBulkCopyColumnMappingCollection collection = CreateCollection(item1, item2);
Assert.Equal(0, collection.IndexOf(item1));
Assert.Equal(1, collection.IndexOf(item2));
Assert.Equal(-1, collection.IndexOf(item3));
IList list = collection;
Assert.Equal(0, list.IndexOf(item1));
Assert.Equal(1, list.IndexOf(item2));
Assert.Equal(-1, list.IndexOf(item3));
Assert.Equal(-1, list.IndexOf("bogus"));
}