What is CMocka?
CMocka is an elegant unit testing framework for C with support for mock objects. It only requires the standard C library, works on a range of computing platforms (including embedded) and with different compilers.
What is code coverage vs test coverage?
Code Coverage vs Test Coverage. So, now we know that code coverage is a measure of how much code is executed during testing, while test coverage is a measure of how much of the feature set is covered with tests.
What is good test code coverage?
With that being said it is generally accepted that 80% coverage is a good goal to aim for. Trying to reach a higher coverage might turn out to be costly, while not necessary producing enough benefit. The first time you run your coverage tool you might find that you have a fairly low percentage of coverage.
What are the types of code coverage testing?
Code Coverage Testing in Software Testing
- Statement Coverage/Block coverage : The number of statements that have been successfully executed in the program source code.
- Decision Coverage/Branch Coverage :
- Function coverage :
- Condition Coverage/Expression Coverage :
What is coverage testing?
Coverage-based testing aims to demonstrate a specific type of coverage of one or another aspect of an IT-system. This can be done by designing test situations and test cases with test design techniques.
Where is Cmocka installed?
The cmocka library can be found in the build/src directory. You can run the binaries in build/examples/* which is a are exsample tests.
What is CTest?
CTest is an executable that comes with CMake; it handles running the tests for the project. While CTest works well with CMake, you do not have to use CMake in order to use CTest. The main input file for CTest is called CTestTestfile.
How do I get 100% code coverage?
2 comments
- One of the steps into achieving the 100% coverage rule is to start with a better design. E.g. many times setter and getters are considered trivial to test and thereby causing people to skip testing them and thus lowering the coverage.
- Agreed, the best way to improve coverage is to write less code.
How is UI test coverage measured?
Calculating test coverage is actually fairly easy. You can simply take the number of lines that are covered by a test (any kind of test, across your whole testing strategy) and divide by the total number of lines in your application.
How much unit test coverage is enough?
Aim for 95% or higher coverage with unit tests for new application code. When developers unit test as they program, they improve the longevity and quality of the codebase. The time a development team invests in unit tests pays off with less time spent troubleshooting defects and analyzing problems later.
Why use cmocka for testing?
You don’t get that easily in C, so it was a pleasure to be introduced to the cmocka framework. In addition to being a fully featured unit test framework (pass/fail tests, fixtures, etc.), cmocka allows you to “mock” specific C functions in a particular test suite using the linker’s –wrap option.
Does cmocka work on embedded platforms?
This makes it possible that cmocka works on many of embedded platforms. Several supported output formats cmocka supports several different message output formats like Test Anything Protocol, Subunit, xUnit XML or the original cmockeryoutput format Fully documented API
Does cmocka use fork () for exception handling?
cmocka doesn’t use fork() for exception handling in test cases. Very well tested cmocka has nightly builds to test on several platforms and with different compilers to ensure it works correctly.
What programming languages does cmocka support?
cmocka works well on Linux, BSD, Solaris, Windows and embedded platforms. It is known to be working with GCC, LLVM, MSVC, MinGW and many more.