public void TestCancelCommand()
{
var m = new ProgressModel();
TestCancel(m, ProgressModel.GeneralCancelCommand, m);
m = new ProgressModel();
TestCancel(m, m.CancelCommand, null);
}
public void TestSourceProperty()
{
var pm = new ProgressModel { Progress = 50, ScaledMaximum = 2 };
var bar = new ProgressBar();
ProgressModel.SetSource(bar, pm);
Assert.AreEqual(1, bar.Value);
Assert.AreEqual(2, bar.Maximum);
pm.Progress = null;
Assert.AreEqual(true, bar.IsIndeterminate);
}
public void TestScaledMaximum()
{
var pm = new ProgressModel();
pm.Maximum = 10;
pm.Progress = 5;
pm.ScaledMaximum = 2;
Assert.AreEqual(1, pm.ScaledProgress);
pm.ScaledMaximum = 100;
Assert.AreEqual(10, pm.ScaledMaximum);
Assert.AreEqual(5, pm.ScaledProgress);
}
public void OpenSearch(string query)
{
var progress = new ProgressModel();
var results = searcher.DoSearch(query, progress);
var headerControl = new Controls.ProgressHeader { Caption = query, DataContext = progress, Image = Icons.SearchResults16 };
headerControl.SetBinding(Controls.ProgressHeader.IsLoadingProperty, new Binding("IsLoading") { Source = results });
var tab = new TabItem {
Header = headerControl,
Content = new Views.SearchView { DataContext = results }
};
tabs.Items.Add(tab);
tab.IsSelected = true;
}
public CancellationCommand(ProgressModel target)
{
fixedTarget = target;
}
public static void SetSource(ProgressBar bar, ProgressModel value)
{
if (bar == null) throw new ArgumentNullException("bar");
bar.SetValue(SourceProperty, value);
}
void TestCancel(ProgressModel model, ICommand cancelCommand, object parameter)
{
Assert.IsFalse(cancelCommand.CanExecute(parameter));
int changeCount = 0;
EventHandler changeHandler = delegate { changeCount++; };
try {
cancelCommand.CanExecuteChanged += changeHandler;
model.AllowCancellation = true;
Assert.AreEqual(1, changeCount, "Changing AllowCancellation didn't raise CanExecuteChanged");
Assert.IsTrue(cancelCommand.CanExecute(parameter));
cancelCommand.Execute(parameter);
Assert.IsTrue(model.WasCanceled);
model.AllowCancellation = false;
Assert.AreEqual(2, changeCount, "Changing AllowCancellation didn't raise CanExecuteChanged");
Assert.IsFalse(cancelCommand.CanExecute(parameter));
} finally { cancelCommand.CanExecuteChanged -= changeHandler; }
}
