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| -rw-r--r-- | tests/300-incorrect-reference-file.sh | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/tests/300-incorrect-reference-file.sh b/tests/300-incorrect-reference-file.sh new file mode 100644 index 0000000..b3de8c0 --- /dev/null +++ b/tests/300-incorrect-reference-file.sh @@ -0,0 +1,37 @@ +#!/bin/sh + +source ./assert.sh + +PROGRAM_EXEC="$1" + +rm -f ref out +touch ref out +assert_error "reference file is empty" $PROGRAM_EXEC ref out + +dd if=/dev/zero of=ref bs=513 count=1 1>/dev/null 2>&1 +assert_error "reference file has size that cannot contain valid diff data" \ + $PROGRAM_EXEC -s 512 ref out + +rm -f ref out +dd if=/dev/zero of=out bs=512 count=2 1>/dev/null 2>&1 +# Create a two-sector backup file +dd if=/dev/zero of=ref bs=$(( 512 + 8 )) count=2 1>/dev/null 2>&1 +# The first offset will be 2 +printf '\x02' | dd of=ref bs=1 count=1 seek=0 conv=notrunc 1>/dev/null 2>&1 +# The second offset will be 1 +printf '\x01' | dd of=ref bs=1 count=1 seek=520 conv=notrunc 1>/dev/null 2>&1 +assert_error "a sector offset points behind the previous offset" \ + $PROGRAM_EXEC -s 512 ref out + +rm -f ref out +dd if=/dev/zero of=out bs=512 count=1 1>/dev/null 2>&1 +# Create a one-sector backup file +dd if=/dev/zero of=ref bs=$(( 512 + 8 )) count=2 1>/dev/null 2>&1 +# The first offset will be 1 +printf '\x01' | dd of=ref bs=1 count=1 seek=0 conv=notrunc 1>/dev/null 2>&1 +assert_error "a sector offset points past the end of the output file" \ + $PROGRAM_EXEC -s 512 ref out + +rm -f ref out + +exit 0 |