From 022a4bf6b59dfdb192ca8aef291c7346f984e511 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 13 Mar 2018 18:12:03 +0900 Subject: kconfig: tests: add framework for Kconfig unit testing Many parts in Kconfig are so cryptic and need refactoring. However, its complexity prevents us from moving forward. There are several naive corner cases where it is difficult to notice breakage. If those are covered by unit tests, we will be able to touch the code with more confidence. Here is a simple test framework based on pytest. The conftest.py provides a fixture useful to run commands such as 'oldaskconfig' etc. and to compare the resulted .config, stdout, stderr with expectations. How to add test cases? ---------------------- For each test case, you should create a subdirectory under scripts/kconfig/tests/ (so test cases are separated from each other). Every test case directory should contain the following files: - __init__.py: describes test functions - Kconfig: the top level Kconfig file for the test To do a useful job, test cases generally need additional data like input .config and information about expected results. How to run tests? ----------------- You need python3 and pytest. Then, run "make testconfig". O= option is supported. If V=1 is given, detailed logs captured during tests are displayed. Signed-off-by: Masahiro Yamada Reviewed-by: Ulf Magnusson --- scripts/kconfig/Makefile | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'scripts/kconfig/Makefile') diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile index a9f325ada4cb..78c96aabd00f 100644 --- a/scripts/kconfig/Makefile +++ b/scripts/kconfig/Makefile @@ -142,6 +142,14 @@ PHONY += tinyconfig tinyconfig: $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config +# CHECK: -o cache_dir= working? +PHONY += testconfig +testconfig: $(obj)/conf + $(PYTHON3) -B -m pytest $(srctree)/$(src)/tests \ + -o cache_dir=$(abspath $(obj)/tests/.cache) \ + $(if $(findstring 1,$(KBUILD_VERBOSE)),--capture=no) +clean-dirs += tests/.cache + # Help text used by make help help: @echo ' config - Update current config utilising a line-oriented program' -- cgit v1.2.3