+AT_CHECK([pspp -O format=csv quick-pw.sps > pspp-pw.csv])
+
+AT_CHECK([head -n 18 pspp-s.csv > top-s.csv])
+AT_CHECK([head -n 18 pspp-pw.csv > top-pw.csv])
+AT_CHECK([diff top-s.csv top-pw.csv])
+
+
+AT_CHECK([grep Valid pspp-s.csv], [0], [Valid,,11
+])