■ はじめに
* NUnitFormでは、DataGridViewのイベントに関する単体試験が現状できなさそうなので、
代わりにダミークラスでDataGridViewをラップして単体試験を行う
■ サンプル
http://blogs.yahoo.co.jp/dk521123/23687833.html
の単体試験を行う。
コード
[TestFixture]
public class TestClass
{
[Test]
public void Test_DataGridView_CellParsing()
{
var now = DateTime.Now;
DummyDataGridView dummyDataGridView =
new DummyDataGridView("columnName", now.ToString());
dummyDataGridView.FireOnCellParsingEvent();
Assert.AreEqual(now.ToString("yyyy/MM/dd"), dummyDataGridView.cellParsingArgs.Value);
}
[Test]
public void Test_DataGridView_CellFormatting()
{
var testData = "2001/12/22";
DummyDataGridView dummyDataGridView =
new DummyDataGridView("columnName", testData);
dummyDataGridView.FireOnCellFormattingEvent();
var ans =
((int)(DateTime.Now.Subtract(DateTime.Parse(testData)).TotalDays)/365).ToString();
Assert.AreEqual(ans, dummyDataGridView.cellFormattingArgs.Value);
}
public class DummyDataGridView : DataGridView
{
public readonly DataGridViewCellParsingEventArgs cellParsingArgs;
public readonly DataGridViewCellFormattingEventArgs cellFormattingArgs;
public DummyDataGridView(string columName, string testValue)
{
ExtendDataGridView.Attach(this, columName);
this.AddColumn(columName);
this.cellParsingArgs = CreateDataGridViewCellParsingEventArgs(testValue);
this.cellFormattingArgs = CreateDataGridViewCellFormattingEventArgs(testValue);
}
public void FireOnCellParsingEvent()
{
this.OnCellParsing(this.cellParsingArgs);
}
public void FireOnCellFormattingEvent()
{
this.OnCellFormatting(this.cellFormattingArgs);
}
private DataGridViewCellParsingEventArgs CreateDataGridViewCellParsingEventArgs(
string testData)
{
int rowIndex = 0;
int columnIndex = 0;
Object value = testData;
Type desiredType = typeof(string);
DataGridViewCellStyle inheritedCellStyle = new DataGridViewCellStyle();
return new DataGridViewCellParsingEventArgs(
rowIndex,
columnIndex,
value,
desiredType,
inheritedCellStyle);
}
private DataGridViewCellFormattingEventArgs CreateDataGridViewCellFormattingEventArgs(
string testData)
{
int rowIndex = 0;
int columnIndex = 0;
Object value = testData;
Type desiredType = typeof(string);
DataGridViewCellStyle inheritedCellStyle = new DataGridViewCellStyle();
return new DataGridViewCellFormattingEventArgs(
rowIndex,
columnIndex,
value,
desiredType,
inheritedCellStyle);
}
private void AddColumn(string columnName)
{
DataGridViewTextBoxColumn tsetColumn = new DataGridViewTextBoxColumn();
tsetColumn.DataPropertyName = columnName;
tsetColumn.Name = columnName;
this.Columns.Add(tsetColumn);
}
}
}
