Add large-file test to unit-test.sh

.gitignore

@@ -42,3 +42,4 @@ tags
 ##########
 
 *.key
+large.bin

unit-test.sh

@@ -9,6 +9,7 @@ LOCKBOX_PATH=/tmp/lockbox
 TOTAL_NUMBER_FILES=100
 TEST_FILE_NUMBER=10
 ROOT_FILE_NUMBER=42
+LARGE_FILE_NAME=large.bin
 
 # setup contents of lockbox
 rm -rf "$LOCKBOX_PATH" || true
@@ -18,6 +19,12 @@ for I in $(seq $TOTAL_NUMBER_FILES); do
 done
 sudo chown root:root "$LOCKBOX_PATH/$ROOT_FILE_NUMBER"
 
+# setup large file contents.
+# must be larger than 8KiB (larger than block size in OpenSSL's enc).
+head -c 10000 /dev/urandom > "$LARGE_FILE_NAME"
+cp -v "$LARGE_FILE_NAME" "$LOCKBOX_PATH/$LARGE_FILE_NAME"
+# leave original copy in CWD for final comparison.
+
 # print summary info about lockbox
 ls -li "$LOCKBOX_PATH"
 xxd -g4 "$LOCKBOX_PATH/$TEST_FILE_NUMBER"
@@ -26,10 +33,12 @@ xxd -g4 "$LOCKBOX_PATH/$ROOT_FILE_NUMBER"
 # record inode and size info
 ORIG_INODE=$(ls -i "$LOCKBOX_PATH/$TEST_FILE_NUMBER" | cut -d ' ' -f 1)
 ORIG_SIZE=$(stat -c %s "$LOCKBOX_PATH/$TEST_FILE_NUMBER")
+ORIG_LARGE_INODE=$(ls -i "$LOCKBOX_PATH/$LARGE_FILE_NAME" | cut -d ' ' -f 1)
+ORIG_LARGE_SIZE=$(stat -c %s "$LOCKBOX_PATH/$LARGE_FILE_NAME")
 
 # generate key to be used for encryption
 ./gen_key.sh "$KEY_FILE_PATH"
-# encrypt lockbox
+# encrypt lockbox.  intentionally omitting '-e' here to test default mode.
 ./lockbox.sh "$LOCKBOX_PATH" "$(xxd -p "$KEY_FILE_PATH" | tr -d '\n')"
 
 # print summary info about lockbox
@@ -42,12 +51,17 @@ NEW_INODE=$(ls -i "$LOCKBOX_PATH/$TEST_FILE_NUMBER" | cut -d ' ' -f 1)
 test "$NEW_INODE" -eq "$ORIG_INODE"
 NEW_SIZE=$(stat -c %s "$LOCKBOX_PATH/$TEST_FILE_NUMBER")
 test "$NEW_SIZE" -eq "$ORIG_SIZE"
+NEW_LARGE_INODE=$(ls -i "$LOCKBOX_PATH/$LARGE_FILE_NAME" | cut -d ' ' -f 1)
+test "$NEW_LARGE_INODE" -eq "$ORIG_LARGE_INODE"
+NEW_LARGE_SIZE=$(stat -c %s "$LOCKBOX_PATH/$LARGE_FILE_NAME")
+test "$NEW_LARGE_SIZE" -eq "$ORIG_LARGE_SIZE"
 
 # verify that file owned by root has not been modified
 diff -q "$LOCKBOX_PATH/$ROOT_FILE_NUMBER" <(echo "Test $ROOT_FILE_NUMBER")
 
 # verify that file contents have been changed
 if diff -q "$LOCKBOX_PATH/$TEST_FILE_NUMBER" <(echo "Test $TEST_FILE_NUMBER"); then false; fi
+if diff -q "$LOCKBOX_PATH/$LARGE_FILE_NAME" "$LARGE_FILE_NAME"; then false; fi
 
 # decrypt lockbox
 ./lockbox.sh -d "$LOCKBOX_PATH" "$(xxd -p "$KEY_FILE_PATH" | tr -d '\n')"
@@ -62,11 +76,16 @@ NEW_INODE=$(ls -i "$LOCKBOX_PATH/$TEST_FILE_NUMBER" | cut -d ' ' -f 1)
 test "$NEW_INODE" -eq "$ORIG_INODE"
 NEW_SIZE=$(stat -c %s "$LOCKBOX_PATH/$TEST_FILE_NUMBER")
 test "$NEW_SIZE" -eq "$ORIG_SIZE"
+NEW_LARGE_INODE=$(ls -i "$LOCKBOX_PATH/$LARGE_FILE_NAME" | cut -d ' ' -f 1)
+test "$NEW_LARGE_INODE" -eq "$ORIG_LARGE_INODE"
+NEW_LARGE_SIZE=$(stat -c %s "$LOCKBOX_PATH/$LARGE_FILE_NAME")
+test "$NEW_LARGE_SIZE" -eq "$ORIG_LARGE_SIZE"
 
 # verify that all files are back to original contents
 for I in $(seq $TOTAL_NUMBER_FILES); do
     diff -q "$LOCKBOX_PATH/$I" <(echo "Test $I")
 done
+diff -q "$LARGE_FILE_NAME" "$LOCKBOX_PATH/$LARGE_FILE_NAME"
 
 # print success
 echo "Test succeeded"