public void DoWorkAfter_should_execute_the_work_after_given_duration()
{
DateTime workStartedAt = default(DateTime);
DateTime workCompletedAt = default(DateTime);
DateTime countDownStartedAt = default(DateTime);
TimeSpan waitDuration = TimeSpan.FromSeconds(2);
TimeSpan howLongWorkTakes = TimeSpan.FromSeconds(1);
TimeSpan timeout = waitDuration.Add(howLongWorkTakes.Add(TimeSpan.FromMilliseconds(500)));
DispatcherFrame frame = default(DispatcherFrame);
"Given no parallel work running".Context(() =>
{
Assert.False(ParallelWork.IsAnyWorkRunning());
frame = new DispatcherFrame();
workStartedAt = default(DateTime);
workCompletedAt = default(DateTime);
});
"When Start.Work().RunAfter() is called".Do(() =>
{
Start.Work(() =>
{
workStartedAt = DateTime.Now;
Thread.Sleep(howLongWorkTakes);
})
.OnComplete(() =>
{
workCompletedAt = DateTime.Now;
frame.Continue = false;
})
.RunAfter(waitDuration);
countDownStartedAt = DateTime.Now;
});
"It should not start the work until the duration has elapsed".Assert(() =>
{
Assert.Equal(default(DateTime), workStartedAt);
Assert.Equal(default(DateTime), workCompletedAt);
Assert.True(WaitForWorkDoneAndFireCallback(timeout, frame));
});
"It should start the work after duration has elapsed".Assert(() =>
{
Assert.True(WaitForWorkDoneAndFireCallback(timeout, frame));
// Work should start within 500ms of start time
DateTime expectedStartTime = countDownStartedAt.Add(waitDuration);
Assert.InRange(workStartedAt,
expectedStartTime,
expectedStartTime.AddMilliseconds(500));
// Work should end within 500ms of expected end time
DateTime expectedEndTime = countDownStartedAt.Add(waitDuration).Add(howLongWorkTakes);
Assert.InRange(workCompletedAt,
expectedEndTime,
expectedEndTime.AddMilliseconds(500));
});
}
private void SaveAndRefreshDiagram()
{
if (DesignerProperties.GetIsInDesignMode(this))
{
return;
}
if (this.CurrentDiagram == default(DiagramFile))
{
return;
}
_RefreshDiagramTimerStarted = false;
var diagramFileName = this.CurrentDiagram.DiagramFilePath;
var pathForContentEditor = ContentEditor.Tag as string;
if (diagramFileName != pathForContentEditor)
{
MessageBox.Show(Window.GetWindow(this),
"Aha! This is one of those weird race condition I am getting into." + Environment.NewLine
+ "Close the app and start again", "Weird race condition",
MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
// Take a backup if this is the first time the diagram being modified
// after opening
if (_FirstSaveAfterOpen)
{
File.Copy(diagramFileName, diagramFileName.Replace(new FileInfo(diagramFileName).Extension, ".bak"), true);
_FirstSaveAfterOpen = false;
}
var content = ContentEditor.Text;
this.CurrentDiagram.Content = content;
OnBeforeSave(this.CurrentDiagram);
string plantUmlPath = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Thirdparty\\plantuml.exe");
if (!File.Exists(plantUmlPath))
{
MessageBox.Show(Window.GetWindow(this),
"Cannot find file: " + Environment.NewLine
+ plantUmlPath, "PlantUml.exe not found", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
if (ParallelWork.IsAnyWorkRunning())
{
return;
}
Start.Work(() =>
{
// Save the diagram content using UTF-8 encoding to support
// various international characters, which ASCII won't support
// and Unicode won't make it cross platform
File.WriteAllText(diagramFileName, content, Encoding.UTF8);
// Use plantuml to generate the graph again
using (var process = new Process())
{
var startInfo = new ProcessStartInfo();
startInfo.FileName = plantUmlPath;
startInfo.Arguments = "-charset UTF-8 -graphvizdot \"" + Settings.Default.GraphVizLocation + "\" \"" + diagramFileName + "\"";
startInfo.WindowStyle = ProcessWindowStyle.Hidden; // OMAR: Trick #5
startInfo.CreateNoWindow = true; // OMAR: Trick #5
process.StartInfo = startInfo;
if (process.Start())
{
process.WaitForExit(10000);
}
}
})
.OnComplete(() =>
{
BindingOperations.GetBindingExpression(DiagramImage, Image.SourceProperty).UpdateTarget();
OnAfterSave(this.CurrentDiagram);
})
.OnException((exception) =>
{
OnAfterSave(this.CurrentDiagram);
MessageBox.Show(Window.GetWindow(this), exception.Message, "Error running PlantUml",
MessageBoxButton.OK, MessageBoxImage.Error);
})
.Run();
}