mirror of
https://github.com/catchorg/Catch2.git
synced 2024-11-26 23:36:11 +01:00
84 lines
3.7 KiB
Markdown
84 lines
3.7 KiB
Markdown
<a id="top"></a>
|
|
# Contributing to Catch
|
|
|
|
So you want to contribute something to Catch? That's great! Whether it's a bug fix, a new feature, support for
|
|
additional compilers - or just a fix to the documentation - all contributions are very welcome and very much appreciated.
|
|
Of course so are bug reports and other comments and questions.
|
|
|
|
If you are contributing to the code base there are a few simple guidelines to keep in mind. This also includes notes to
|
|
help you find your way around. As this is liable to drift out of date please raise an issue or, better still, a pull
|
|
request for this file, if you notice that.
|
|
|
|
## Branches
|
|
|
|
Ongoing development is currently on _master_. At some point an integration branch will be set-up and PRs should target
|
|
that - but for now it's all against master. You may see feature branches come and go from time to time, too.
|
|
|
|
## Directory structure
|
|
|
|
_Users_ of Catch primarily use the single header version. _Maintainers_ should work with the full source (which is still,
|
|
primarily, in headers). This can be found in the `include` folder. There are a set of test files, currently under
|
|
`projects/SelfTest`. The test app can be built via CMake from the `CMakeLists.txt` file in the root, or you can generate
|
|
project files for Visual Studio, XCode, and others (instructions in the `projects` folder). If you have access to CLion,
|
|
it can work with the CMake file directly.
|
|
|
|
As well as the runtime test files you'll also see a `SurrogateCpps` directory under `projects/SelfTest`.
|
|
This contains a set of .cpp files that each `#include` a single header.
|
|
While these files are not essential to compilation they help to keep the implementation headers self-contained.
|
|
At time of writing this set is not complete but has reasonable coverage.
|
|
If you add additional headers please try to remember to add a surrogate cpp for it.
|
|
|
|
The other directories are `scripts` which contains a set of python scripts to help in testing Catch as well as
|
|
generating the single include, and `docs`, which contains the documentation as a set of markdown files.
|
|
|
|
__When submitting a pull request please do not include changes to the single include, or to the version number file
|
|
as these are managed by the scripts!__
|
|
|
|
|
|
## Testing your changes
|
|
|
|
Obviously all changes to Catch's code should be tested. If you added new
|
|
functionality, you should add tests covering and showcasing it. Even if you have
|
|
only made changes to Catch internals (i.e. you implemented some performance
|
|
improvements), you should still test your changes.
|
|
|
|
This means 2 things
|
|
|
|
* Compiling Catch's SelfTest project:
|
|
```
|
|
$ cd Catch2
|
|
$ cmake -Bdebug-build -H. -DCMAKE_BUILD_TYPE=Debug
|
|
$ cmake --build debug-build
|
|
```
|
|
because code that does not compile is evidently incorrect. Obviously,
|
|
you are not expected to have access to all the compilers and platforms
|
|
supported by Catch2, but you should at least smoke test your changes
|
|
on your platform. Our CI pipeline will check your PR against most of
|
|
the supported platforms, but it takes an hour to finish -- compiling
|
|
locally takes just a few minutes.
|
|
|
|
|
|
* Running the tests via CTest:
|
|
```
|
|
$ cd debug-build
|
|
$ ctest -j 2 --output-on-failure
|
|
```
|
|
If you added new tests, approval tests are very likely to fail. If they
|
|
do not, it means that your changes weren't run as part of them. This
|
|
_might_ be intentional, but usually is not.
|
|
|
|
The approval tests compare current output of the SelfTest binary in various
|
|
configurations against known good outputs. The reason it fails is,
|
|
_usually_, that you've added new tests but have not yet approved the changes
|
|
they introduce. This is done with the `scripts/approve.py` script, but
|
|
before you do so, you need to check that the introduced changes are indeed
|
|
intentional.
|
|
|
|
|
|
|
|
*this document is still in-progress...*
|
|
|
|
---
|
|
|
|
[Home](Readme.md#top)
|