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Audit and Consulting of Information Systems and Business Processes
Today’s post will be rather quick. I will show you how a unit/integration test class that can interact with real model data in Sparx Enterprise Architect. Beyond the well known Interop.EA assembly there is another assembly called SparxSystems.Repository that provides the intersting feature to connect to a running EA instance: Services.GetRepository(). We can use this to write unit/integration tests that […]
Developing an AddIn for Sparx Enterprise Architect is tedious, even with the existence of support such as the great work of Geert Bellekens. However, since Visual Studio 2015 we can […]
In one of our projects we needed to create a lot of components that expose interfaces. The steps to design this in EA are quite tedious: Link the Interface to […]
It has been some time since I have last posted something on our blog, so I will start with something easy: today I made the switch from Sparx Enterprise Architect […]
We at d-fens use Microsoft Code Contracts every day. And certainly with every great tool there are some things that might benefit from some improvement – and code contracts are […]
Ever since we are using StructureMap we are also using this as a cheap replacement for Managed Extensibility Framework (MEF), as it allows us to scan arbitrary assembly paths for additional types to inject. As we are also dealing with configuration sections where we specify which plugins or types we want to use in a specific environment, we are tasked […]
While Converting ODataQueryOptions into LINQ Expressions I needed to cascade different Lambda Expressions via AND and OR. In this post I describe a way on how to easily combine them via a boxing class with operator overriding. The Problem Cascading lambda expressions should be as easy as using a + or && operator: A boxing class However, as by default […]
Caching with C# has become easy since the MemoryCache component is included in the .NET framework. While this implementation provides only limited functionality it is actually quite easy to make it strongly typed and support for constructing unique cache keys per cache group. In this post I will show you how this can be done with the help of a […]
Creating benchmarks with BenchmarkDotNet is very easy and running them is even easier with the Visual C# Interactive Compiler (CSI for short). If you need more information about CSI, read Essential .NET – C# Scripting to get started). And here is how it works: Select the Developer Command Prompt for VS2015 from the Start Menu Run csi.exe Change to the […]
By default we cannot use ForEach() on IEnumerable but only on List. However, with extension methods to the rescue, it is easy to roll your own: Regarding the implementation I saw a few options: I could implement ForEach() with a traditional for loop, parallelise the operation, use ToList() to convert the list or other LINQ extensions such as Any() and […]
While doing some tests with our new TraceListener and log server I did some tests where I wanted to find out how long the log server would take to start accepting messages. So I started to constantly send messages from the console: When I looked at the server logs I noticed that the arriving messages came in unusually slow. So […]
When integrating back end systems we very often would like our build server to run integration tests against our test evironments. The problem is that we do not want to […]
Before PowerShell 5 we had to revert to reflection to be able to display constructor information in PowerShell (see Get-Constructor Fun for details). And because we used that functionality so often we created a Cmdlet Get-Constructor that is part of our biz.dfch.PS.System.Utilities module. However with PowerShell 5 this is obsolete as it is now built into the language and runtime […]
When working with a DataServiceContext from PowerShell you might run into concurrency update situations after updating entities via SaveChanges. This is due to the behaviour of the DataServiceContext ChangeTracker which will not reflect changes performed by the server (as a result of our update operation). Let me illustrate this with a quick example: Suppose we have a Catalogue entity where […]
The other day I was working in a PowerShell session when I suddenly realised that Powershell’s TabCompletion feature was no longer working. That was strange, as it certainly normally and […]
Visual Studio supports the generation of data service clients (Service references) for OData services. A data service client is a .NET class that contains methods for accessing the OData service and gets generated based on the metadata provided by the OData service. The client acts as a proxy and translates the method calls into HTTP requests. Mike Wasson describes in […]
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