write_file fail.temp << EOF
logger -expect error "Missing -script or -command option." 1
bugpoint -suffix fail -yosys ${YOSYS}
EOF
exec -expect-return 0 -- ${YOSYS} -qq mods.il -s fail.temp

write_file fail.temp << EOF
logger -expect error "do not crash on this design" 1
bugpoint -suffix fail -yosys ${YOSYS} -command "dump"
EOF
exec -expect-return 0 -- ${YOSYS} -qq mods.il -s fail.temp

write_file fail.temp << EOF
logger -expect error "returned value 3 instead of expected 7" 1
bugpoint -suffix fail -yosys ${YOSYS} -command raise_error -expect-return 7
EOF
exec -expect-return 0 -- ${YOSYS} -qq mods.il -s fail.temp

write_file fail.temp << EOF
logger -expect error "not found in the log file!" 1
bugpoint -suffix fail -yosys ${YOSYS} -command raise_error -grep "nope"
EOF
exec -expect-return 0 -- ${YOSYS} -qq mods.il -s fail.temp

write_file fail.temp << EOF
logger -expect error "not found in stderr log!" 1
bugpoint -suffix fail -yosys ${YOSYS} -command raise_error -err-grep "nope"
EOF
exec -expect-return 0 -- ${YOSYS} -qq mods.il -s fail.temp