diff --git a/tests/block-decoder-test.sh b/tests/block-decoder-test.sh
index b4b985e..0ec5304 100755
--- a/tests/block-decoder-test.sh
+++ b/tests/block-decoder-test.sh
@@ -9,5 +9,13 @@ audiowmark test-gen-noise $IN_WAV 200 44100
 audiowmark_add $IN_WAV $OUT_WAV $TEST_MSG
 audiowmark_cmp --expect-matches 5 $OUT_WAV $TEST_MSG
 
+check_length $IN_WAV $OUT_WAV
+
+audiowmark_add --test-no-limiter $IN_WAV $OUT_WAV $TEST_MSG
+audiowmark_cmp --expect-matches 5 $OUT_WAV $TEST_MSG
+
+check_length $IN_WAV $OUT_WAV
+check_snr $IN_WAV $OUT_WAV 32.4
+
 rm $IN_WAV $OUT_WAV
 exit 0
diff --git a/tests/pipe-test.sh b/tests/pipe-test.sh
index c3bc6d4..25046c8 100755
--- a/tests/pipe-test.sh
+++ b/tests/pipe-test.sh
@@ -10,5 +10,7 @@ cat $IN_WAV | audiowmark_add - - $TEST_MSG > $OUT_WAV || die "watermark from pip
 audiowmark_cmp --expect-matches 5 $OUT_WAV $TEST_MSG
 cat $OUT_WAV | audiowmark_cmp --expect-matches 5 - $TEST_MSG || die "watermark detection from pipe failed"
 
+check_length $IN_WAV $OUT_WAV
+
 rm $IN_WAV $OUT_WAV
 exit 0