What can I use for good quality code coverage for C#/.NET?

Question

I wonder what options there are for .NET (or C# specifically) code coverage, especially in the lower priced segment?

I am not looking for recommendations, but for a comparison of products based on facts. I know the following:

NCover
- Seems to be very popular and looks quite good
- Supports statement coverage and branch coverage
- $480 for "NCover 3 Complete"
- Older beta versions are available for free
Visual Studio (2008 Pro) | (2005 Team System (Development, Test or Team Suite Editions))
- Well, it's Microsoft so I'd expect it to work properly
- Fully integrated into Visual Studio
- At least $5,469
PartCover - no further development (moved to OpenCover)
- Open source
- Supports statement coverage
OpenCover - successor to PartCover
- OpenSource
- Supports branch and statement coverage
- 32 and 64 bit support
- Silverlight support
- Background
- Tutorial on The Code Project by the primary developer
- No .NET Core support yet
SD Test Coverage
- Works with 32 and 64 bits, full C# 4.0
- Handles both small and very large code bases
- $250 for single user license
JetBrains dotCover
- $100 for Personal License. Free for user groups, open source projects, students and teachers.
- Supports statement coverage
- Silverlight support
NCrunch
- $159 for personal license
- $289 for commercial seat license * Free during beta, to become commercial, pricing unknown future unknown.
- Code coverage indicators in Visual Studio
- Continuous (near real time) testing
- Visual per-test code coverage
- Performance metrics, parallel multi-core test execution
NDepend
- $410 for developer license
- NDepend can import coverage data from NCover, DotCover, Visual Studio 2017; 2015, 2013, 2012, 2010 and 2008 Code Coverage files.
- Dependency graph
- Dependency structure matrix
- Visualizing code metrics
- Validating code rules

The question is already duplicated in https://softwarerecs.stackexchange.com/questions/123/tool-for-code-coverage-of-unit-tests-in-c. Can it be migrated & merged? — Michael Freidgeim, Apr 02 '18 at 21:49
I didn't see AxoCover mentioned here, it is free and works quite well IMO: [https://marketplace.visualstudio.com/items?itemName=axodox1.AxoCover](https://marketplace.visualstudio.com/items?itemName=axodox1.AxoCover) — Brad Albright, Apr 12 '19 at 13:15

score 71 · Accepted Answer · edited Jun 14 '19 at 20:35

71

I use the version of NCover that comes with TestDriven.NET. It will allow you to easily right-click on your unit test class library, and hit Test With→Coverage, and it will pull up the report.

edited Jun 14 '19 at 20:35

Peter Mortensen

30,738
21
105
131

answered Nov 10 '08 at 01:30

David P

3,604
3
37
54

5

Gotta love TestDriven.NET; as it happens, I use VSTS, but I tend to use NUnit (not MSTes), and use TestDriven.NET to "Test With -> Team Coverage", which uses the MSTest coverage tool (including colorizing) with my NUnit tests. Fantastic. – Marc Gravell Nov 10 '08 at 07:01
This is what I used as well - until I moved my apps into 64bits :-( – galaktor Aug 17 '12 at 10:58
Doesn't work with .NET core yet. – Mariusz Jamro Aug 02 '18 at 19:44

score 46 · Answer 2 · edited Jun 14 '19 at 20:37

46

An alternative to NCover can be PartCover, is an open source code coverage tool for .NET very similar to NCover, it includes a console application, a GUI coverage browser, and XSL transforms for use in CruiseControl.NET.

It is a very interesting product.

OpenCover has replaced PartCover.

edited Jun 14 '19 at 20:37

Peter Mortensen

30,738
21
105
131

answered Nov 10 '08 at 01:29

Christian C. Salvadó

807,428
183
922
838

12

PartCover has essentially been replaced by OpenCover (https://github.com/sawilde/opencover), as PartCover stagnated with support only for .NET 2. – David Keaveny Aug 31 '11 at 03:21

score 18 · Answer 3 · edited Jun 14 '19 at 20:40

18

JetBrains (of ReSharper fame) has been working on a coverage tool for a little while called dotCover. It's showing a great deal of promise.

edited Jun 14 '19 at 20:40

Peter Mortensen

30,738
21
105
131

answered Jul 03 '10 at 17:47

Mike Two

44,935
9
80
96

6

dotCover is released and available for purchase since Sep 2010: http://www.jetbrains.com/dotcover/ – Jura Gorohovsky Oct 24 '10 at 09:30
2

dotCover is also part of TeamCity, no additional personal licenses required – Oskar Austegard Oct 16 '13 at 20:17

score 15 · Answer 4 · edited Apr 30 '19 at 03:18

15

I just tested out NCrunch and have to say I am very impressed. It is a continuous testing tool that will add code coverage to your code in Visual Studio at almost real time. At the time as I write this NCrunch is free. It is a little unclear if it going to be free, cost money or be opened source in the future though.

edited Apr 30 '19 at 03:18

Laurel

5,965
14
31
57

answered Apr 26 '12 at 07:13

Martin Odhelius

990
6
15

4

Not free as of 3/20/2014 – Mar 20 '14 at 21:18

score 4 · Answer 5 · edited Jun 14 '19 at 20:42

4

TestCocoon is also pretty nice. It is in active development and has a user community:

Open source (GPL 3)
Supports C/C++/C# cross platform (Linux, Windows, and Mac)
CoverageScanner - Instrumentation during the Generation
CoverageBrowser - View, Analysis and Management of Code Coverage Result

However, TestCocoon is no longer developed and its creators are now producing a commercial software for C/C++.

edited Jun 14 '19 at 20:42

Peter Mortensen

30,738
21
105
131

answered Jan 01 '12 at 18:41

Minh Cuong Tran

1
1

1

TestCocoon was renamed to [Squish Coco](http://www.froglogic.com/squish/coco/) when the main developer (and TestCocoon) joined [froglogic](http://www.froglogic.com/index.php). the current Squish Coco release also supports C#. – Frerich Raabe Apr 15 '14 at 13:52

score 3 · Answer 6 · edited Jun 14 '19 at 20:36

3

There are pre-release (beta) versions of NCover available for free. They work fine for most cases, especially when combined with NCoverExplorer.

edited Jun 14 '19 at 20:36

Peter Mortensen

30,738
21
105
131

answered Nov 10 '08 at 01:27

jalbert

3,047
2
20
21

10

Doesn't seem to be available anymore... – David d C e Freitas Nov 06 '13 at 23:46

score 2 · Answer 7 · edited Jun 14 '19 at 20:39

2

I am not sure what the difference is with the retail NCover, but there is also an NCover project on SourceForge that is of course open source and free.

edited Jun 14 '19 at 20:39

Peter Mortensen

30,738
21
105
131

answered Jul 15 '09 at 19:02

2

The version on Sourceforge is the basis for the current versions of NCover. It's not being actively worked on/supported anymore but still widely available. They are up to version 3.0 now. – Valien Aug 14 '09 at 19:37

score 1 · Answer 8 · edited Jun 14 '19 at 20:43

1

C# Test Coverage Tool has very low overhead, handles huge systems of files, intuitive GUI showing coverage on specific files, and generated report with coverage breakdown at method, class, and package levels.

edited Jun 14 '19 at 20:43

Peter Mortensen

30,738
21
105
131

answered May 02 '14 at 09:11

Kanwar Singh

908
12
21

score 1 · Answer 9 · edited Jun 14 '19 at 20:40

1

TestMatrix is a unit test runner and code coverage tool.

edited Jun 14 '19 at 20:40

Peter Mortensen

30,738
21
105
131

answered Jul 06 '10 at 06:30

sergeb

2,484
3
22
20

score 1 · Answer 10 · edited Jun 14 '19 at 20:38

1

See the C# Test Coverage tool from my company, Semantic Designs:

It has very low overhead, handles huge systems of files, intuitive GUI, howing coverage on specific files, and generated report with coverage breakdown at method, class and package levels.

edited Jun 14 '19 at 20:38

Peter Mortensen

30,738
21
105
131

answered Jun 12 '09 at 08:05

Ira Baxter

93,541
22
172
341

given this is a commercial product you should really indicate cost :D – John Nicholas Oct 30 '12 at 13:35
The price is prominently displayed in the summary of results in the question that started this thread. – Ira Baxter Oct 30 '12 at 13:51

score 0 · Answer 11 · answered Jul 03 '10 at 17:44

Code coverage features, as well as programmable API's, come with Visual Studio 2010. Sadly, the only two editions that include the full Code Coverage capabilities are Premium and Ultimate. However, I do believe the API's will be available with any edition, so creating code coverage files and writing a viewer for the coverage info would likely be possible.

score 0 · Answer 12 · edited Jun 14 '19 at 20:40

0

We've released EAP to dotCover and will be releasing the beta version soon.

edited Jun 14 '19 at 20:40

Peter Mortensen

30,738
21
105
131

answered Jul 05 '10 at 17:38

Hadi Hariri

4,656
2
24
13

What can I use for good quality code coverage for C#/.NET?

12 Answers12

Linked

Related