zstd files/0 -D dicts/0 -q zstd -t files/0.zst -D dicts/0 files/0.zst : 1000 bytes zstd -t files/0.zst -D dicts/1 && die "Must fail" ||: files/0.zst : Decoding error (36) : Dictionary mismatch zstd -t files/0.zst && die "Must fail" ||: files/0.zst : Decoding error (36) : Dictionary mismatch