What is Ncover and How it works An Overview and Its Use Cases
History & Origin of Unit Ncover
NCover is a .NET code coverage tool. There are two non-related NCover products that do .NET code coverage. There is an open-source ncover which can be found on Sourceforge and a company called Encover, LLC. There has been additional development on both products since this 2004 reference. The company NCover, LLC was started when founder Peter Waldschmidt decided to commercialize the open-source tools he had created. Professional editions were launched in 2007, but the last supported free version 1.5.8 is still available on the company’s site.
What is Unit Ncover?
NCover is a code-coverage tool that allows you to measure how much of your source code is “covered” by unit tests. The idea is that while you’re running your unit tests with NUnit, ncover will be working in the background, keeping track of every line of code that’s being executed. After the test is finished, nCover will show a visual report showing which parts of your source code are and are not covered by existing unit tests. There is a tool to help you determine if you have any functionality that is not evaluated by unit tests. While it’s not perfect, it gives a good visual representation if you’re missing some possible tests.
Features of Ncover are:
- Data-Rich Interactive Browser Interface. …
- Pre-Instrumentation. …
- Coverage For Windows Store Apps. …
- Baseline Executions. …
- Condition Coverage. …
- Branch Coverage Visualization. …
- Source Code Syntax Highlighting. …
- Standard Source Code Analytics.
Why use Ncover
NCover Desktop is a major leap forward in the ease and flexibility of code coverage tools. The code coverage collected while testing your .NET code shows NCover the user what code was used during testing and gives a specific measure of unit test coverage. By tracking these statistics over time, you get a solid measure of code quality over the course of the development cycle. The core of the NCover application is a Windows service that starts automatically and runs continuously in the background of your OS (Windows XP and higher). NCover can monitor applications with .NET version 2.0 and higher, and Silverlight 4.0 and higher.
Advantages of NCover
- CENTRALIZED DATA
- INDUSTRY-LEADING CODE COVERAGE ENGINE
- 32 & 64-BIT SUPPORT
- BUNDLED SUPPORT
- DOCUMENTATION
- OPTIMIZED MEMORY CONSUMPTION
- AUTO UPGRADE & UPDATE
Disadvantages of a NCover
- Best NCover Alternative
- Big Joanie – “No Scrubs” …
- pulses. – “ …
- Neck Deep – “Boulevard Of Broken Dreams” …
- State Champs – “Stitches” …
- Eat Your Heart Out – “Shape Of You” …
- Tonight Alive – “Little Lion Man” …
- Those Without – “She Will Be Loved” …
- Anti-Flag – “Should I Stay Or Should I Go”
Best resources to learn NCover
https://www.devopsschool.com/blog/?s=Ncover
https://www.ncover.com/resources
Free Video Tutorials NCover
NCover Interview Questions and Answers
1. Is NCover free?
The company NCover, LLC began when the founder, Peter Waldschmidt, decided to commercialize the open-source tool he created. … The commercial versions were launched in 2007, but the last supported free version 1.5. 8 is still available on the company site.
2. How do I run NCover?
To open NCover Explorer, click on the Start Menu, select All Programs, then NCover, and finally NCover Explorer. Now, open up Project Options by pressing Control-Shift-R or by clicking on Project Actions and choosing Project Options. This window is where you will get your tests ready to execute under NCover.
3. How do I use NCover in Visual Studio?
Install and Register the NCover Visual Studio Extension
Install/update NCover Desktop.
Select the available Visual Studio extension plug-in check box(es) to include with the Desktop install.
After the Desktop is installed, open Visual Studio and confirm the NCover menu has been added to the Visual Studio main menu.
4. How does NCover work?
NCover uses the .NET Framework profiling API to monitor an application’s execution. When a method is loaded by the CLR, NCover retrieves the IL and replaces it with instrumented IL code. NCover does not change your original IL code; it simply inserts new code to update a visit counter at each sequence point. After the .NET process has shut down the profiler outputs statistics to the coverage file.
5) What kind of output does NCover produce?
By default, NCover outputs an xml file named coverage.xml. This file is the analysis output of NCover which you can load into NCover Explorer to see a graphical representation, including source code highlighting.
6. Which of the following is used for code coverage?
Code coverage tools are available for many programming languages and as part of many popular QA tools. They are integrated with build tools like Ant, Maven, and Gradle, with CI tools like Jenkins, project management tools like Jira, and a host of other tools that make up the software development toolset.
7. What are coverage criteria in software testing?
A coverage criterion is a rule or collection of rules that impose test requirements on a test set [Ammann, Offutt]. The coverage criterion describes test requirements completely and unambiguously.
8. How do I get code coverage in Visual Studio?
On the Test menu, select Analyze Code Coverage for All Tests. You can also run code coverage from the Test Explorer tool window.
9. What is a coverlet collector?
Coverlet is a cross-platform code coverage library. NET, with support for the line, branch, and method coverage.
10. How does a coverlet work?
A coverlet is a bedcovering with sides that hang down a few inches past the box spring, but don’t touch the floor. A coverlet can be tucked in or left untucked if edged with decorative trim. Luxury coverlets can be layered directly over a flat sheet or over a blanket.
11. What is a coverlet console?
coverlet.console. Coverlet is a cross-platform code coverage framework. NET, with support for the line, branch, and method coverage. It works with. NET Framework on Windows.
12. What is coverlet MSBuild?
Coverlet is a cross-platform code coverage library. NET, with support for the line, branch, and method coverage. There are no supported framework assets in this package.
13. What is the C# coverlet?
Coverlet is an open-source project on GitHub that provides a cross-platform code coverage framework for C#. Coverlet is part of the. NET Foundation. Coverlet collects Cobertura coverage test run data, which is used for report generation.
14. What is coverlet Nuget?
Coverlet is a cross-platform code coverage library. NET, with support for the line, branch, and method coverage. There are no supported framework assets in this package.
15. What is a coverlet vs quilt?
The main difference between a quilt and vs coverlet is that coverlets do not have a middle layer of warmth as quilts do. Coverlets are made from a single piece of fabric. The fabric of quilts is in fact quilted, with three layers, but coverlets are not quilted.
16. Is a coverlet the same as a bedspread?
A bedspread is designed to cover the entire bed, up over the pillows, and down to the floor. Some bedspreads have a special pocket to hold a bedspread filler or top-of-bed insert for a plush look and additional warmth. A coverlet is smaller, designed to cover the top of the bed and to hang just past the boxsprings.
16. Can I use a coverlet as a bedspread?
If you are looking for a non-reversible cover to place over a comforter or bedspread set, a coverlet is thin and lightweight enough to layer with. You can use a coverlet on top of other pieces but keep it stand alone too for a minimal look.
17. What is code coverage analysis?
A code coverage analyzer monitors your code at runtime and records information about which lines of code were executed. NCover shows each sequence point in your application along with the number of times that point was executed. Sequence points are generated by the compiler and stored in the debug information (.pdb) files. A sequence point basically corresponds to a single program statement (often a line of code) in your high-level language.
18. Why would I want to do code coverage analysis?
Unit test suites are often used as a quality tool during the development process to keep the codebase stable as it changes and expands. Tools such as NUnit are often used to run and report on the test suites. However, when implementing unit testing in your build process, you have no way of knowing how much of your code the unit tests are actually testing. This is where code coverage comes in. You can run NUnit within NCover and use the code coverage report to determine which code was not tested by that particular test suite.
19. What makes NCover better than other code coverage tools?
Unlike most code coverage tools, NCover does not modify your source code in any way to generate coverage information. This means that you get coverage based on real, production code, providing more accurate data. For more information about how NCover works, see “Does NCover require a special compilation for my code?” and “How does NCover work?”
20. Which programming languages does NCover support?
In short, NCover supports any .NET programming language. NCover requires the .NET framework version 2.0.50727 to be installed; however, the application being profiled can be written against any shipping version of the framework. NCover has been tested profiling coverage of .NET 3.5, .NET 3.0, .NET 2.0 and .NET 1.1 applications. Note that NCover derives a lot of information from debugging symbols (.PDB files), which are not governed by any standard. This means that different languages and compilers will yield slightly different output.