Add more files to test

Author: Virv12

test.sh

@@ -50,7 +50,10 @@ truncate -s 8G disk.img
 mkfs.ext4 -F disk.img
 DEV=$(sudo losetup --show --find disk.img)
 sudo mount $DEV /mnt
-echo "hello world" | sudo tee /mnt/hello.txt
+echo "hello world" | sudo tee /mnt/hello.txt >/dev/null
+head -c 10M /dev/urandom | sudo tee /mnt/rand1 >/dev/null
+head -c 10M /dev/urandom | sudo tee /mnt/rand2 >/dev/null
+SHA_IN="$(sha256sum /mnt/*)"
 sudo umount /mnt
 sudo losetup -d $DEV
 
@@ -65,8 +68,9 @@ run_qemu
 
 DEV=$(sudo losetup --show --find disk.img)
 sudo mount $DEV /mnt
-if [ "$(cat /mnt/hello.txt)" != "hello world" ]; then
-    echo "hello.txt does not contain the expected content"
+SHA_OUT="$(sha256sum /mnt/*)"
+if [ "$SHA_IN" != "$SHA_OUT" ]; then
+    echo "sha256sum does not match"
     exit 1
 fi
 sudo umount /mnt