Docs: Describe QA util programs in the testing docs

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John Beard 2019-01-24 11:33:22 +00:00 committed by Wayne Stambaugh
parent a4d4d9a241
commit b94cf9d564
1 changed files with 30 additions and 5 deletions

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@ -39,7 +39,7 @@ Common useful patterns:
* `<test> -t "Utf8/UniIterNull"` runs only a single test in a specific suite.
* `<test> -l all` adds more verbose debugging to the output.
* `<test> --list_content` lists the test suites and test cases within the
test program. You can use these for arguments to `-l`.
test program. You can use these for arguments to `-t`.
You can rebuild just a specific test with CMake to avoid rebuilding
everything when working on a small area, e.g. `make qa_common`.
@ -149,6 +149,30 @@ You can run the tests in GDB to trace this:
If the test segfaults, you will get a familiar backtrace, just like
if you were running pcbnew under GDB.
# Utility programs {#utility-programs}
KiCad includes some utility programs that can be used for debugging, profiling,
analysing or developing certain parts of the code without having to invoke the full
GUI program.
Generally, they are part of the `qa_*_tools` QA executables, each one containing
the relevant tools for that library. To list the tools in a given program, pass
the `-l` parameter. Most tools provide help with the `-h` argument.
To invoke a program:
qa_<lib>_tools <tool name> [-h] [tool arguments]
Below is a brief outline of some available tools. For full information and command-line
parameters, refer to the tools' usage test (`-h`).
* `common_tools` (the common library and core functions):
* `coroutine`: A simple coroutine example
* `io_benchmark`: Show relative speeds of reading files using various IO techniques.
* `qa_pcbnew_tools` (pcbnew-related functions):
* `drc`: Run and benchmark certain DRC functions on a user-provided `.kicad_pcb` files
* `pcb_parser`: Parse user-provided `.kicad_pcb` files
* `polygon_generator`: Dump polygons found on a PCB to the console
# Fuzz testing {#fuzz-testing}
It is possible to run fuzz testing on some parts of KiCad. To do this for a
@ -164,12 +188,13 @@ For example, to use the [AFL fuzzing tool][], you will need:
* To compile this executable with an AFL compiler, to enable the instrumentation
that allows the fuzzer to detect the fuzzing state.
For example, the `qa_pcb_parse_input` executable can be compiled like this:
For example, the `qa_pcbnew_tools` executable (which contains `pcb_parser`,
a fuzz testing tool for `.kicad_pcb` file parsing) can be compiled like this:
mkdir build
cd build
cmake -DCMAKE_CXX_COMPILER=/usr/bin/afl-clang-fast++ -DCMAKE_C_COMPILER=/usr/bin/afl-clang-fast ../kicad_src
make qa_pcb_parse_input
make qa_pcbnew_tools
You may need to disable core dumps and CPU frequency scaling on your system (AFL
will warn you if you should do this). For example, as root:
@ -177,9 +202,9 @@ will warn you if you should do this). For example, as root:
# echo core >/proc/sys/kernel/core_pattern
# echo performance | tee cpu*/cpufreq/scaling_governor
To fuzz:
To fuzz, run the executable via `afl-fuzz`:
afl-fuzz -i fuzzin -o fuzzout -m500 qa/pcb_parse_input/qa_pcb_parse_input
afl-fuzz -i fuzzin -o fuzzout -m500 qa/pcbnew_tools/qa_pcbnew_tools pcb_parser
where: