test_expect_code 1 \
"${TEST_GDB} --batch-silent --return-child-result \
-ex 'set args insert < $gen_msg_filename' \
-x index-file-$code.gdb notmuch"
test_expect_code 1 \
"${TEST_GDB} --batch-silent --return-child-result \
-ex 'set args insert < $gen_msg_filename' \
-x index-file-$code.gdb notmuch"