Meson provides a --wrapper flag to run tests through arbitrary programs, for instance:
$ meson test --wrapper 'valgrind --error-exitcode=1 --leak-check=full'
Full output can be obtained by also passing --verbose.
If you encounter segfaults happening at random, catch them by repeating unit tests multiple times with GDB attached:
$ meson test --repeat 1000000 --gdb
Several printers for the Dot Format are provided. Together with Graphviz, ASTs, symbol tables and control flow graphs can be visualised.
$ ./mc_ast_to_dot ../test/integration/fib/fib.mc | dot -Tpng > fib_ast.png
$ ./mc_symbol_table -d ../test/integration/fib/fib.mc | dot -Tpng > fib_st.png
$ ./mc_cfg_to_dot ../test/integration/fib/fib.mc | dot -Tpng > fib_cfg.png
Symbol tables, intermediate representation, and assembly code can be output in plain format directly:
$ ./mc_ir ../test/integration/fib/fib.mc
$ ./mc_symbol_table ../test/integration/fib/fib.mc
$ ./mc_asm ../test/integration/fib/fib.mc
The script run_mallocfail in "scripts/" provides a gdb wrapper, that runs a given program repeatedly and
systematically lets one malloc after the other fail.
It requires the installation of mallocfail and compilation with debug option.
See usage info for how to run it (run_mallocfail -h).
When encoutering a segfaulting program, gdb will halt and ask if you want to quit. Press "n" and continue debugging in gdb.