void Search()
{
var outputUserControl = _app.AttachOutputUserControl();
var orderDocumentUserControl = _app.AttachOrderDocumentUserControl(@"Accepted");
outputUserControl._buttonClear.EmulateClick();
orderDocumentUserControl._searchText.EmulateChangeText("300");
orderDocumentUserControl._searchButton.EmulateClick();
outputUserControl._textBox.Text.Is("OrderDocument (1,3) : 300\nOrderDocument (2,3) : 300\n");
}