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//
// DataTableExtensionsTest.cs
//
// Author:
// Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 2008 Novell, Inc. http://www.novell.com
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using NUnit.Framework;
using MonoTests.Helpers;
namespace MonoTests.System.Data
{
[TestFixture]
public class DataTableExtensionsTest
{
[Test]
[ExpectedException (typeof (InvalidOperationException))] // for no rows
public void CopyToDataTableNoArgNoRows ()
{
DataTable dt = new DataTable ();
dt.Columns.Add ("CID", typeof (int));
dt.Columns.Add ("CName", typeof (string));
dt.AsEnumerable ().CopyToDataTable<DataRow> ();
}
[Test]
public void CopyToDataTableNoArg ()
{
DataTable dt = new DataTable ();
dt.Columns.Add ("CID", typeof (int));
dt.Columns.Add ("CName", typeof (string));
dt.Rows.Add (new object [] {1, "foo"});
DataTable dst = dt.AsEnumerable ().CopyToDataTable<DataRow> ();
Assert.AreEqual (1, dst.Rows.Count, "#1");
Assert.AreEqual ("foo", dst.Rows [0] ["CName"], "#2");
}
[Test]
// no error for empty table this time.
[Category ("NotWorking")] // some DataTableReader internal issues
public void CopyToDataTableTableArgNoRows ()
{
DataTable dt = new DataTable ();
dt.Columns.Add ("CID", typeof (int));
dt.Columns.Add ("CName", typeof (string));
DataTable dst = new DataTable ();
dt.AsEnumerable ().CopyToDataTable<DataRow> (dst, LoadOption.PreserveChanges);
}
[Test]
public void AsEnumerable ()
{
DataSet ds = new DataSet ();
ds.ReadXml (TestResourceHelper.GetFullPathOfResource ("Test/System.Data/testdataset1.xml"));
DataTable dt = ds.Tables [0];
Assert.AreEqual ("ScoreList", dt.TableName, "TableName");
var dv = dt.AsEnumerable ();
Assert.AreEqual (4, dv.Count (), "#0");
var i = dv.GetEnumerator ();
Assert.IsTrue (i.MoveNext (), "#1");
Assert.AreEqual (1, i.Current ["ID"], "#2");
Assert.IsTrue (i.MoveNext (), "#3");
Assert.AreEqual (2, i.Current ["ID"], "#4");
}
#if !COREFX //LinqDataView is not supported yet
[Test]
public void AsDataView ()
{
DataSet ds = new DataSet ();
ds.ReadXml (TestResourceHelper.GetFullPathOfResource ("Test/System.Data/testdataset1.xml"));
DataTable dt = ds.Tables [0];
var dv = dt.AsEnumerable ().Where<DataRow> ((DataRow r) => (int) r ["Score"] > 60).AsDataView<DataRow> ();
Assert.AreEqual (1, dv [0] ["ID"], "#1");
Assert.AreEqual (4, dv [1] ["ID"], "#2");
}
#endif
}
}
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