The newest release of Visual Studio 2012 is rich with new tools that enhance standard developer activities. In this session, we’ll review and demonstrate some of these new features, such as Unit Testing, Code Reviews, Code Clones, and other developer tools. Come join us for this free Webinar!
Repurposing LNG terminals for Hydrogen Ammonia: Feasibility and Cost Saving
Quality Coding: What’s New with Visual Studio 2012
1. Quality Coding: What's New with Visual
Studio 2012
The newest release of Visual Studio 2012 is rich with new tools
that enhance standard developer activities. In this session, we'll
review and demonstrate some of these new features, such as
Unit Testing, Code Reviews, Code Clones, and other developer
tools. Come join us for this free Webinar!
2. Agenda
• ALM and Quality
• Quality in Requirements
• Quality in Development
– Unit Testing
– Fakes
– Code Reviews
– Code Analysis
– Code Clones
• Quality in Test
– Manual Testing
– Exploratory Testing
– Automated Testing
– Lab Environments
• Conclusion
3. Initial Project Portfolio Retire
Recognizing the Iterative Nature of Applications
Define
•Requirements
•Validation
•Prioritization
•Release Plan
Develop
•Iteration Plan
•Develop
•Test
Operate
•Monitor
•Support
•Upgrade
Plan
WorkDone
Plan
WorkDone
Plan
WorkDone
Plan
WorkDone
Plan
WorkDone
4. New ALM Capabilities in Visual Studio 2012
Define
•Requirements
•Validation
•Prioritization
•Release Plan
Develop
•Iteration Plan
•Develop
•Test
Operate
•Monitor
•Support
•Upgrade
5. Quality in Requirements: Storyboarding
• Tighter loop between the Business
Stakeholders and Development Team
• Graphical design tools built in
PowerPoint
• Embed other content including
context slides
• Capture screen shots and create
lightweight animations
• Store common elements within a
shape library
• Create master templates to simplify
multiple similar views
• Get feedback to others
– Email, print and version control the
document
– leverage collaborative tools
– leverage web viewing tools
– Integration with TFS
6. Agenda
• ALM and Quality
• Quality in Requirements
• Quality in Development
– Unit Testing
– Fakes
– Code Reviews
– Code Analysis
– Code Clones
• Quality in Test
– Manual Testing
– Exploratory Testing
– Automated Testing
– Lab Environments
• Conclusion
7. Why invest in quality?
• Quality is an expensive (and painful) afterthought
5
10
15
20
25
30
Relative Cost
To Fix Bugs...
Courtesy of the
National Institute of Software and Technology (NIST)
8. Problems...
• It is expensive to find and fix bugs that get past daily
development practices
• It is hard to diagnose errors at runtime
• Why does an application run slowly?
• Individual Developers and Testers need to know if
they are on track
• Test and development are often out of synch
• Final test phase for shipping is often ad-hoc
• How much testing is enough?
9. Approach for Development Quality
• Use 'defence in depth' strategy
– Unit testing
– Code reviews
– Continuous integration builds / Gated Check-ins
– Static Code Analysis
– Education / Patterns / Best Practices
10. Unit Testing Runner
New Test Runner:
• Tests run in background
• Run automatically on build
• Support for multiple unit
testing frameworks:
– MS Test
– xUnit
– nUnit
– And More!
• Deep integration in the
IDE
• Supports native C++ code
• Multiple run options
– Failed Tests
– Not-run Tests
– All Tests
• Easy code coverage access
11. public double MethodA() { ... }
Unit Testing
• Diagnostic checks during development
– Automated test script for methods on a type
– Basic sanity checking
– Useful for regression testing
public void TestMethodA()
{
SomeClass c = new SomeClass(); // Arrange
double d = c.MethodA(); // Act
Assert.AreEqual(expected, d); // Assert
}
Eachmethodhas
oneormore
corresponding
testmethods
12. Use the framework you want to use
• In the box support for
– .NET
– Native C/C++
• Third party plugins
– NUnit
– xUnit.net
– MbUnit
– QUnit/Jasmine
– SQL Server Unit Testing
(Under development)
13. MS-Test Improvements
• Many performance and scale improvements
– Especially when you stick to “classic” unit testing
• Support for testing Async
[TestMethod]
public async Task MyAsyncTest()
{
var result = await SomeLongRunningOperation();
Assert.IsTrue( result );
}
• Proper support for 64-bit and .Net multi-targeting
• Available in Express!
14. Continuous Testing
• “If you aren‟t running your unit tests, you are just
compiling. You are not building.”
• Chris Patterson
Program Manager
Team Foundation Build
• Run Tests After Build option
in Visual Studio 2012 will run
your Unit Tests after each
successful build of your
solution
15. Code coverage in VS 2012
• Analyze your code
coverage with a single
click
• Analyze for selected
tests to help find how
specific tests are
covering your system
• Supports all managed &
native frameworks
16. DEMONSTRATION
• Unit Test Basics
• Unit Test Explorer
• Framework Plug-Ins
• Continuous Testing
• Code Coverage
• Play Lists (Update 2)
17. What‟s missing?
• Test Lists
– Legacy mode only
• Test Impact
– Works on the server, not in
the VS client
• Private Accessors
– Deprecated in VS 2010,
removed in VS 2012
• Generate Unit Test
– Didn‟t actually generate a
unit test
18. Unit Testing and Isolation
• Unit Tests verify the smallest testable „unit‟ of code
• Target code should be isolated from external
influences
• Unit Test frameworks can perform integration testing
Target Pseudo-Code:
Function DoSomething(a)
x = LookupInDatabase(a)
y = ProcessWithWebService(x)
LogToFile(“Processing complete”)
End Function
Unit Test Pseudo-Code:
T = new SomeClass()
result = T.DoSomething(1)
Assert.AreEqual(2,result)
End Function
Response
controlled
by test
Response
controlled by test
Response
controlled
by test
19. What is un-testable code?
Where do we find it?
• “Get „er done” code
– Business logic in code-behind
– Classes with too many
dependencies
– Database logic mixed with
business logic
• Testability was not a
consideration
– Or was explicitly avoided
• Monolithic, highly-coupled designs
Common indicators
• Complex test setup and teardown
• Environmental dependencies
• Public static methods
• Hidden object creation
• Complex external frameworks
• No tests at all!
Any system where the tests require complex setup or
where the tests run very slowly is unsuitable for the kind of
developer testing we really care about.
20. void FileExistsTest() {
File.Write("foo.txt", "");
var result = IsFileEmpty("foo.txt")
Assert.IsTrue(result);
}
File.Write("foo.txt", "");
A simple test setup example
The method we want to unit test
bool IsFileEmpty(string file) {
var content = File.ReadAllText(file);
return content.Length == 0;
}
File.ReadAllText(file);
21. Environmental Dependencies
Consider the following Y2K code:
public void ThrowIfEndOfTheWorld()
{
if (DateTime.Now == new DateTime(2000,1,1))
throw new Y2KBugException();
}
22. [DllImport("kernel32.dll")]
extern static bool SetSystemTime(ref SystemTime time);
[TestMethod]
public void Y2KTest()
{
SetSystemTime(2000,1,1,0,0,0);
Assert.Throws( () => ThrowIfEndOfTheWorld() );
}
Environmental Dependencies
How about this? Why is this bad?
23. Isolating code with Microsoft Fakes
• Visual Studio 2012 Fakes lets
you isolate almost any .NET
• Fakes come in two flavors
– Stubs: concrete implementations
of interfaces or abstract classes
– Shims: run-time interception lets
you replace calls, even those
from the .NET BCL
24. Visual Studio 2012 Shims – Be Cautious
• Runtime interception of any .NET
method
– Uses the profiler to detour calls
– “Monkey patching” for .NET
• Use it when you…
– Have external components that cannot be
refactored
• SharePoint, ASP.NET, Office, etc.
– Need to override non-virtual methods
• Static methods, constructors, sealed
types, properties
– Have legacy code with untestable designs
25. SharePoint Development Enhancements
• SharePoint improvements (Update 2)
– Unit test emulator
– Coded UI test support
– Web Performance test support
– Load test support
– IntelliTrace collection plan
26. SharePoint and Unit Testing
[TestMethod]
public void ScheduleAppointmentReturnsTrueWhenNewAppointmentIsCreated()
{
using (new SharePointEmulationScope(EmulationMode.Enabled))
{
//Arrange
SPSite site = new SPSite("http://localhost");
string listName = String.Format("List{0}", Guid.NewGuid());
// create a new temporary list
Guid listId = site.RootWeb.Lists.Add listName, listName, SPListTemplateType.GenericList);
SPList list = site.RootWeb.Lists[listId];
Assert.IsNotNull(list);
// add fields to list
list.Fields.Add("Name", SPFieldType.Text, true);
list.Fields.Add("Date", SPFieldType.Text, false);
list.Update();
// prepare
string errorMsg = string.Empty;
DateTime date = DateTime.Now;
BookAnAppointmentWebPart webPart = new BookAnAppointmentWebPart();
// Act
bool success = webPart.ScheduleAppointment(site.RootWeb, list.Title, "My Name",
"888-888-8888", "My.Name@contoso.com", "23", date, out errorMsg);
// Assert
Assert.IsTrue(success);
// cleanup
list.Delete();
site.Dispose();
}
}
27. Code Reviews
Purpose:
– Find and fix bugs early in the process
(much cheaper and easier than later)
– Adherence to development standards
– Improve consistency
– Improve comments and maintainability
– Share best practices across the team
– Educate both experienced and new team
members
– Improve overall structural quality of the code and skillset of
the team!
28. Integrated Code Review
• Provides
feedback from
other team
members
• Shared
knowledge
across team
• Code reviews
can be set as a
quality gate
• Source changes
highlighted and
comments about
the changes.
29. Automated Reviews?
• Static Code Analysis:
– Analyze code (MSIL/SQL) based
on best practices (rules)
– Rules created by and used at Microsoft
– Rulesets:
• Selectable groups of rules allow tailoring to your environment
• Rulesets can be further customized for the exact rules you need
– Can support both T-SQL and .NET
– Can be „enforced‟ using check-in policies
– Can be reported during the build (including CI and Gated)
• Still not the same as manual/peer reviews
30. Code Clone Detection
• Reviews common code
blocks exposing
refactoring
opportunities
• Detect code blocks with
common structure and
approach
• Search is semantic, not
just literal
• Detects „copy and
paste‟ errors
• Detects code fragments
with a common logical
structure
• Review common code
and decide how to
proceed
32. Agenda
• ALM and Quality
• Quality in Requirements
• Quality in Development
– Unit Testing
– Fakes
– Code Reviews
– Code Analysis
– Code Clones
• Quality in Test
– Manual Testing
– Exploratory Testing
– Automated Testing
– Lab Environments
• Conclusion
33. Tester Enhancements in Visual Studio 2012
• Microsoft Test Manager
– Performance
– Exploratory Testing
– Clone test suites via command line ("versioning")
– Multi-line test steps
– Rich-text in test steps
– Improved Test Step grid usability
– Read-only test case access from within Test Runner
– Pass/Fail test cases without using Test Runner
– Enhanced view of results for Test Plan
– Manual testing for Metro-style applications
– Code Coverage for Manual Testing (Update 1)
– Suspend/Resume testing for test case development
• Coded UI Testing
– UI Map Access
– Cross Browser UI Testing (Update 1)
– Test data reduction through test settings configuration
• Team Web Access - Test Hub
36. Performing Exploratory Testing
• Familiar Test Runner interface customized
for exploratory testing
• Free-form comment area allows tester to
record suggestions and problems
encountered during the session
• Comment area allows for rich-
text, attachments, and easy insertion of
screenshot
• Session can be paused to perform activities
outside of the Test Runner
• Bug and Test Case work items can readily
be created during the exploratory testing
session
41. Imaginet‟s New Blog Keeps You In The Know
http://blog.imaginet.com
Stay up to speed on the latest news from
Imaginet, Microsoft, Visual Studio, and the entire software
development world.
42. More Webcasts on ALM / TFS / Visual Studio 2012
• Quality Coding: What’s New with Visual Studio 2012
• April 18 (1:00-2:30pm CT)
• May 9 (1:00-2:30pm CT)
• May 23 (1:00-2:30pm CT)
• Getting Started With Coded UI testing: Building Your First
Automated Test
• April 11 (1:00-2:30pm CT)
• April 25 (1:00-2:30pm CT)
• June 13 (1:00-2:30pm CT)
• June 27 (1:00-2:30pm CT)
• The How, What, and Why of Performance Testing Your
Applications
• May 2 (1:00-2:30pm CT)
• Top Business Benefits of Application Lifecycle Management
(ALM)
• June 3 (1:00-2:00pm CT)
• Managing Test Labs Without the Headaches
• June 6 (1:00-2:30pm CT)
• June 20 (1:00-2:30pm CT)
43. Free Services from Imaginet & Microsoft
There are a number of different Microsoft Programs that you
might be able to leverage to get some free services from
Imaginet:
• Deployment Planning Services (DPS) – You can trade in your
Microsoft Software Assurance credits to receive some free
TFS/ALM Deployment Planning Services days with Imaginet
• Partner Services Credit (PSC) – Have you or are you about to
spend money with Microsoft on Visual Studio 2012 products? If
so, Microsoft may kick in some funding to help you successfully
adopt.
• Virtual Technical Specialist (VTS) hours –You may be eligible
to receive some free remote consulting/training hours with
Imaginet through the Microsoft Virtual Technical Specialist
program.
For more information, email bmadison@imaginet.com.
44. Need Help with YOUR Automated Testing?
• Learn best practices for test selection, extension, data
binding, maintenance, frameworks, community extensions
(such as the CUITe and the UI Map Toolbox), and other
real-world scenarios.
• Includes automated test development & execution for YOUR
application
• Support and training for your team
• Includes a high-level ALM assessment
Imaginet’s Visual Studio 2012
Automated Testing 5-day Quickstart
Interested? Just email us at info@imaginet.com.
45. Email us at:
ALM Planning & Implementation Services
ALM Planning
• ALM Assessment & Envisioning Workshops
(3 or 5 days)
• VS & TFS Migration Planning Workshop (5
days)
• TFS Deployment Planning* (5 days)
• Visual SourceSafe to TFS Migration
Planning* (3 Days)
• Visual Studio Quality Tools Deployment
Planning* (5 days)
Upgrade
• TFS 2010 Adoption Quick Start (5 or 10
days)
• TFS 2012 Adoption Quick Start (5 or 10
days)
• TFS 2010 Upgrade Quick Start (10 days)
• TFS 2012 Upgrade Quick Start (10 days)
Remote Support
• Remote Support for TFS & Visual Studio
Lab
• Visual Studio Lab Management Quick Start
(10 days)
Testing
• Manual Testing with Test Manager Quick
Start (5 days)
• Visual Studio Testing Tools Quick Start (10
days)
• Visual Studio Automated Testing Quick Start
(5 days)
• Visual Studio Load Testing Quick Start (5 or
10 Days)
Builds
• Automated Build & Release Management
Quick Start (5 days)
• Automated Build Center of Excellence (CoE)
Database
• Visual Studio Database Tools Quick Start
(10 days)
Integrations
• Team Foundation Server (TFS) & Project
Server Integration Quick Start (10 days)
• TFS & Quality Center Integration/Migration
Quick Start (10 days)
46. For questions or more information,
please contact us at:
info@imaginet.com or (972)607-4830
Remember to add http://blog.imaginet.com to your favorite reader!
This is the teaser for the class – we will preview (in slides) many of the topics that we’ll dive into deeply as part of this training class…
This is the teaser for the class – we will preview (in slides) many of the topics that we’ll dive into deeply as part of this training class…
Speaker notes:1. While we are expanding support for 3rd party frameworks, we have lots of customers who are on MSTest and we will continue investing in it for them2. Potential rude QA, Mstest sucks because….Where is Assert.Throws?Where is DataRow support?Answer: We are fully aware that we are behind on some key features, we are not done yet and will keep working to close the gap here
As needed, use this as an opportunity to demonstrate work items in general. For an upgrade class, hopefully this is minimized.
Peter – fix the final sentence this time.
Image source: http://www.sxc.hu/photo/1125087
Maybe retitle this?
BHARRY: Unit testing – One of the big problems with unit testing SharePoint is that most code requires SharePoint to be running and trying to run tests against a live SharePoint instance is a pain. So we’ve built a SharePoint “emulator” using our new VS 2012 Fakes & Stubs capability. This will make unit testing of SharePoint components WAY easier.Coded UI support – Our 2012 product was pretty close to supporting this but there were a few SharePoint specific issues that we weren’t able to address that made CodedUI (functional testing) not work well for SharePoint. In our first update, we will have addressed those issues.Workarounds documented for Excel on Sharepoint 2010, Visio\\Powerpoint controls, and SharePoint Silverlight controlsLoad testing – We now support load testing for SharePoint out of the box. This is more involved than you might imagine due to how dynamic SharePoint is. You can’t just record a script and play it back – it won’t work because SharePoint generates and expects dynamic data (like GUIDs). We’ve built the extensions to our load testing solution to parse the dynamic SharePoint data and include it appropriately in subsequent requests. So now you can record a script and play it back and we will dynamically adjust it to match what SharePoint expects.IntelliTrace collection plan – While this won’t be in the first CTP, we’re building a custom IntelliTrace collection plan for SharePoint that helps filter out a bunch of the SharePoint “infrastructure noise” and lets you focus on events related to your components that are the likely cause of problems you are seeing.SOMA: SharePoint Development. Beyond the core platform support for SharePoint development available via “Napa” and the Office Developer Tools for Visual Studio, with Visual Studio 2012 Update 1 we’ve invested in building out significant new application lifecycle management (ALM) capabilities for SharePoint applications. This work is primarily centered around multiple forms of testing: from load testing that enables the stressing of SharePoint applications with simulated load and network conditions; to performance testing that enables recording and running performance suites against SharePoint solutions; to unit testing that enables coded UI tests for simulating user interaction and that enables using the Microsoft Fakes Framework for stubbing out SharePoint dependencies in unit tests. Update 1 also updates IntelliTrace to capture SharePoint logging information, in order to provide a rich analysis experience for SharePoint applications.
VS Blog:SharePoint Emulators provide a system of Fakes based shims implementing the basic behaviors of the SharePoint 2010 server object model. SharePoint Emulators are available today through a NuGet package feed. Perform a simple search of the NuGet official feed for “SharePoint Emulators”.SharePoint Emulators are easy to incorporate into existing tests. You can write tests against the SharePoint Emulators using only the SharePoint API. All that is needed is the wrapping of test code in a SharePointEmulationScope.
There are also things like JSLint, etc. for other platforms
As needed, use this as an opportunity to demonstrate work items in general. For an upgrade class, hopefully this is minimized.
This is the teaser for the class – we will preview (in slides) many of the topics that we’ll dive into deeply as part of this training class…