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path: root/Documentation/technical/unit-tests.txt
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2025-01-21doc: use .adoc extension for AsciiDoc filesbrian m. carlson1-242/+0
We presently use the ".txt" extension for our AsciiDoc files. While not wrong, most editors do not associate this extension with AsciiDoc, meaning that contributors don't get automatic editor functionality that could be useful, such as syntax highlighting and prose linting. It is much more common to use the ".adoc" extension for AsciiDoc files, since this helps editors automatically detect files and also allows various forges to provide rich (HTML-like) rendering. Let's do that here, renaming all of the files and updating the includes where relevant. Adjust the various build scripts and makefiles to use the new extension as well. Note that this should not result in any user-visible changes to the documentation. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-09-04t: import the clar unit testing frameworkPatrick Steinhardt1-0/+2
Our unit testing framework is a homegrown solution. While it supports most of our needs, it is likely that the volume of unit tests will grow quite a bit in the future such that we can exercise low-level subsystems directly. This surfaces several shortcomings that the current solution has: - There is no way to run only one specific tests. While some of our unit tests wire this up manually, others don't. In general, it requires quite a bit of boilerplate to get this set up correctly. - Failures do not cause a test to stop execution directly. Instead, the test author needs to return manually whenever an assertion fails. This is rather verbose and is not done correctly in most of our unit tests. - Wiring up a new testcase requires both implementing the test function and calling it in the respective test suite's main function, which is creating code duplication. We can of course fix all of these issues ourselves, but that feels rather pointless when there are already so many unit testing frameworks out there that have those features. We line out some requirements for any unit testing framework in "Documentation/technical/unit-tests.txt". The "clar" unit testing framework, which isn't listed in that table yet, ticks many of the boxes: - It is licensed under ISC, which is compatible. - It is easily vendorable because it is rather tiny at around 1200 lines of code. - It is easily hackable due to the same reason. - It has TAP support. - It has skippable tests. - It preprocesses test files in order to extract test functions, which then get wired up automatically. While it's not perfect, the fact that clar originates from the libgit2 project means that it should be rather easy for us to collaborate with upstream to plug any gaps. Import the clar unit testing framework at commit 1516124 (Merge pull request #97 from pks-t/pks-whitespace-fixes, 2024-08-15). The framework will be wired up in subsequent commits. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-11-10unit tests: add a project plan documentJosh Steadmon1-0/+240
In our current testing environment, we spend a significant amount of effort crafting end-to-end tests for error conditions that could easily be captured by unit tests (or we simply forgo some hard-to-setup and rare error conditions). Describe what we hope to accomplish by implementing unit tests, and explain some open questions and milestones. Discuss desired features for test frameworks/harnesses, and provide a comparison of several different frameworks. Finally, document our rationale for implementing a custom framework. Co-authored-by: Calvin Wan <calvinwan@google.com> Signed-off-by: Calvin Wan <calvinwan@google.com> Signed-off-by: Josh Steadmon <steadmon@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>