public void TestExtractMachingData()
{
//テストデータ作成
DataTable srcDt = new DataTable();
srcDt.Columns.Add("key", typeof(string));
srcDt.Columns.Add("value", typeof(string));
DataRow dr = srcDt.NewRow();
dr["key"] = "key1";
dr["value"] = "value1";
srcDt.Rows.Add(dr);
dr = srcDt.NewRow();
dr["key"] = "key2";
dr["value"] = "value2";
srcDt.Rows.Add(dr);
dr = srcDt.NewRow();
dr["key"] = "key3";
dr["value"] = "value3";
srcDt.Rows.Add(dr);
srcDt.AcceptChanges();
DataTable matchDt = new DataTable();
matchDt.Columns.Add("code", typeof(string));
matchDt.Columns.Add("name", typeof(string));
dr = matchDt.NewRow();
dr["code"] = "key3";
dr["name"] = "value3";
matchDt.Rows.Add(dr);
dr = matchDt.NewRow();
dr["code"] = "key2";
dr["name"] = "value2";
matchDt.Rows.Add(dr);
dr = matchDt.NewRow();
dr["code"] = "key4";
dr["name"] = "value4";
matchDt.Rows.Add(dr);
matchDt.AcceptChanges();
DataTable result = DataSetUtil.ExtractMachingData(srcDt, matchDt, "key", "code");
Assert.AreEqual(2, result.Rows.Count);
Assert.AreEqual("key2", result.Rows[0]["key"]);
Assert.AreEqual("key3", result.Rows[1]["key"]);
}