Brief testing guide

1. Build and start

make
make run

make run starts the program with disk.img as the virtual carrier file.

2. Basic filesystem scenario

When testing manually in a terminal, try the Up and Down arrows after a few commands: they browse command history.

Enter these commands inside the program:

format 512
mkdir /docs
touch /docs/test.txt
write /docs/test.txt hello filesystem
cp /docs/test.txt /docs/copy.txt
ls /docs
cat /docs/test.txt
mv /docs/test.txt /docs/renamed.txt
cat /docs/renamed.txt
info

Expected result:

formatting succeeds;
/docs contains the original file and its copy;
cat prints hello filesystem;
after mv, the file is available as renamed.txt;
info shows a 512 KiB carrier and occupied clusters.

3. Compression and defragmentation

touch /docs/repeat.txt
write /docs/repeat.txt aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
compress /docs/repeat.txt
ls /docs
rawcat /docs/repeat.txt
decomp /docs/repeat.txt
rawcat /docs/repeat.txt
defrag
cat /docs/repeat.txt

Expected result:

compress succeeds for repeated text;
in ls, stored is smaller than size for repeat.txt;
rawcat shows compact RLE pairs before decompression and direct bytes after decomp;
after defrag, the file still reads correctly.

4. Import and export

Before starting the program, create a host file:

echo "outside file" > host.txt

Then inside the program:

import host.txt /docs/imported.txt
cat /docs/imported.txt
export /docs/imported.txt exported.txt

After leaving the program, verify:

cat exported.txt

Expected result: exported.txt contains outside file.

5. Cleanup

make clean
rm -f host.txt exported.txt

make clean removes the executable and the default virtual disk image.

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