test_begin_subtest "round trip"
find $TEST_DIRECTORY/corpus -type f -print | sort | xargs cat > EXPECTED
$TEST_DIRECTORY/hex-xcode --direction=encode < EXPECTED | $TEST_DIRECTORY/hex-xcode --direction=decode > OUTPUT
test_begin_subtest "round trip"
find $TEST_DIRECTORY/corpus -type f -print | sort | xargs cat > EXPECTED
$TEST_DIRECTORY/hex-xcode --direction=encode < EXPECTED | $TEST_DIRECTORY/hex-xcode --direction=decode > OUTPUT