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Author: Marcel (page 2 of 16)

How to Fix Application insights Live Metrics stream on Azure Mobile Apps

In preparation for Tech Days 2016, I was working with my colleagues on the Techdays app and for this we also have a backend system. This system is running for some time now and we want to have better insights into the usage of the website and the mobile app.

One of the latest additions to application insights is the capability of Live Metrics, where you can see the current traffic coming into your website or API.

For this you can simply add a NuGet package, which is currently in pre-release, but works great.

Once you install the package and run the website, you will see the Live Stream tile light up in the Azure portal and when you click it you will see a couple of live graphs showing actual traffic on the site or API

Of course we wanted to host our backend very simply on Azure Web apps and for this specific purpose on Azure Mobile Services, Since that is what we use as the mobile backend of the application. But apparently there are some subtle differences that prevent AppInsights to work properly if it comes to Live Metrics.

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CTO at Xpirit, Microsoft Regional Director, Visual studio ALM MVP, Speaker, Pluralsight Author and IT Architect Consultant

Using docker on Windows in VSTS build and release management

In my previous post I showed you how you can create a docker container image that has an ASP.NET 4.5 website running on the full .NET framework. In this post I want to show you how you can use VSTS build V-next and the release management tools to leverage the docker technology.

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CTO at Xpirit, Microsoft Regional Director, Visual studio ALM MVP, Speaker, Pluralsight Author and IT Architect Consultant

Deploying ASP.NET 4.5 to Docker on Windows

At the moment of this writing you can search the internet on ASP.NET and docker and all you will find is how to deploy ASP.NET Core applications to a Linux docker container. Although I love the initiative of ASP.NET core, I do believe that ASP.NET 4.5 is something many of you know and love already and nobody talks about how we can leverage docker on windows to run this full version of ASP.NET

To get you started we need to have a Windows version that is capable of natively running docker. With natively running docker I mean that docker is build into the OS. So no use of docker for windows tools, since we don’t want Linux containers, we want to run windows containers! At this moment you can use Windows 10 Anniversary edition and Windows Server 2016 Technical Preview 5 to go through the steps that I describe here to get your ASP.NET 4.5 website running in a docker on windows container.

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CTO at Xpirit, Microsoft Regional Director, Visual studio ALM MVP, Speaker, Pluralsight Author and IT Architect Consultant

Execute and publish xUnit Tests results with .NET Core and VSTS

At the moment of writing you can not use the standard Visual studio tests task to run your xUnit unit tests on DotNetCore 1.0 and then publish the results to VSTS.

You need some different steps to get DotnetCore compiled and run your unit tests in a VSTS build. Here are the steps to make it work:

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CTO at Xpirit, Microsoft Regional Director, Visual studio ALM MVP, Speaker, Pluralsight Author and IT Architect Consultant

Fixing Windows 10 non-responsive start menu

I was just doing my work on windows 10 and for no apparent reason the windows 10 start menu would not respond anymore to either my Windows hotkey on the keyboard or by clicking on the start menu icon in the left bottom corner. This meant no response to the windows key and me typing the application I wanted to start, not being able to shut down my machine, etc. So this gave me some real headaches because the only way I could solve this is do a reset of my PC or just repaving my machine and install windows 10 again.

This has happen to me several times and most of the time after I had been doing some Mobile App development where I build mobile apps that are cross platform. Lately I had to do this for my talk at VS Live in Las Vegas and for that I had to turn on developer mode on my windows 10 machine.

Now I am not sure if his issue is caused by the mobile development I have done or if it is just my SSD drive acting up on me and corrupting certain files on my system. I do know that running the following powers shell command (started in administrator mode of course) solved the problem form me:

The option DisableDevelopmentMode does the following:

Registers an existing app package (.appx) installation that has been disabled, didn’t register, or has become corrupted. Use DisableDevelopmentMode to specify that the manifest is from an existing installation and not from a collection of files in development mode.

At least this was a way to solve it for me and hopefully it will work for you as well.

CTO at Xpirit, Microsoft Regional Director, Visual studio ALM MVP, Speaker, Pluralsight Author and IT Architect Consultant

Selenium syntax for CodedUI

I have been playing around with this idea for quite some time and I already build this for a customer in the past, but after questions I got from people using CodedUI who tried to come up with a simplified syntax I thought it would be time to publish what I have at the moment.

If you hand code your test automation with CodedUI, then you know that searching for a control is always a couple of lines of code to set up a search. You first create an instance of the control you need, provide it the search scope in the constructor and next you need to set the search properties. Once that is done you can then use the control and the moment you use one of it’s properties it will search for your control.

With Selenium this is a bit different. You have the Driver class that provides more or less to primary methods. FindElement and FindElements and you provide it an instance of the By class that contains the search criteria.

Let me illustrate what I mean with two examples. Bot do the same. We goto the google home page and type a search query.

CodedUI:

Selenium:

In general I hear that people like the Selenium syntax more then the multistep aproach in codedUI. The thing I dislike is that I lose the type safety of the type of control. So the question is, would it be possible to get the same syntax for codedUI and still use codedUI and get a type safe way of interacting with the search controls?

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CTO at Xpirit, Microsoft Regional Director, Visual studio ALM MVP, Speaker, Pluralsight Author and IT Architect Consultant

Maintainable Test automation for Winforms using CodedUI

This week I got a request on twitter how to work with CodedUI for windows forms and if I had any example. A couple of weeks ago, during a deep dive session we did in Sweden, I got more or less the same question on how can I access my controls when using windows forms, because we are having trouble getting CodedUI to work for us. So therefore I thought it would be a good idea to create a simple sample and describe in a bit more detail how to approach this.

If you have looked at my PluralSight courses or attended one of the training events where I teach CodedUI, you might know that I am trying to convince everyone to never use the CodedUI test recorder, since the way it tries to locate controls and the way it saves the information in the recording file is a nightmare to maintain.

So when investigating how we can locate controls in windows forms in a maintainable way I also avoid the recorder and just use the CodedUI object model to find the controls I need. So let’s first dive into how to find controls and then look at how to write maintainable UI Automation code.

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CTO at Xpirit, Microsoft Regional Director, Visual studio ALM MVP, Speaker, Pluralsight Author and IT Architect Consultant

Running XUnit test with ASP.NET DNX and TFS 2015 build

Recently I joined a project where they are working on a new application that is based on the new ASP.NET cross platform tooling. While this is still in beta at the moment I write this, we strongly believe in the future of ASP.NET and the ability to run it on multiple platforms. Of course we want this project to start with everything done right from the start, so we are not only writing clean code, we also embrace the continuous delivery concepts and with that we have a strong need of continuous integration and continuous tests. This means we are writing Unit tests from day one and want those integrated in our build system. For the build we use Team Foundation Server 2015 and the new cross platform build system. The challenge I want to discuss today is that the tooling at the moment is still a lot in flux so the unit test tooling for testing cross platform solutions is not fully up to par as you are used to in the “classic” ASP.NET world on just windows.

So when we want to write unit tests, we need to ensure we use a test framework that also supports running on multiple platforms. At the moment XUnit is the test tooling that is already available for DNX. So let me describe the steps involved for making a set of unit tests and run those tests on the new build platform in TFS 2015.

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CTO at Xpirit, Microsoft Regional Director, Visual studio ALM MVP, Speaker, Pluralsight Author and IT Architect Consultant

Microsoft TechDays 2015 slides & additional info

Microsoft TechDays this year was a rIMG-20150529-WA0007eal blast for me.  This was the fist year for me as CTO of Xpirit and I am extremely proud on my team that delivered so many great sessions. It is always a pleasure to be at this conference but it was real special this time where I had so many of my colleagues there as well.

You can check out their blogs here and find more info on their sessions as well: Roy, Rene, Patriek and Marcel.

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CTO at Xpirit, Microsoft Regional Director, Visual studio ALM MVP, Speaker, Pluralsight Author and IT Architect Consultant

How to prevent CodedUI tests from breaking Angular Ajax calls

During one of the Pluralsight study group nights, we came across a problem when we test angular websites that make Ajax calls to switch templates in a Single page application. To repro the scenario we created a simple website that did nothing more then showing on the main page an button and hocking up that button with an event to switch the page with an second page, using an Ajax call.

The pages look like follows:
image

After clicking the button you will see

image

The code looks like this:

Index.html:

image

and Edit.html

image

and index.js:

image

Now the CodedUI test we ran looks like follows:

image

We launch the browser, Search for the button, then click the button. On the new page we search for the HtmlEdit box and read out it’s value.

Now this test works great as long as the Index.js file contains the following line to switch the page:

image

If we use an Ajax call by using the following code then the second page will not be shown in the browser. So it looks like the click is not executed.

image

What happens is that codedUI injects java scrip the moment it starts a browser test. This script is used to enable codedUI to wait for Ajax calls to complete and coordinate other timing related things.

Unfortunately this script seems to interfere with the standard way Angular is handling Ajax calls and therefore breaks your site.

Now the big question is how can we solve this?

Fortunately there is a simple solution. You can add an App.config file to your codedUI test project inside this config file you specify a configuration key called WebWaitForReadyLevel and set its value to 3. So your config file must contain the following xml:

image

Now when you run CodedUI will not inject the JavaScript in your page and this will then fix the problem of Ajax calls not working in your site.

Of course this has as side effect that CodedUI will not test the ready level of controls, so in order to ensure you can interact with controls you might need to add some control flow logic to the code to wait for controls to appear like e.g. the WaitforControlEnabled or WaitForControlExists that are available on all the test controls you use.

Hope this helps,

Cheers,

Marcel

CTO at Xpirit, Microsoft Regional Director, Visual studio ALM MVP, Speaker, Pluralsight Author and IT Architect Consultant

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