m4_define([CHECK_ADD_FILES],
  [AT_SETUP([ADD FILES -- $1 $2 with $3])
   AT_DATA([a.data], [dnl
1aB
8aM
3aE
5aG
0aA
5aH
6aI
7aJ
2aD
7aK
1aC
7aL
4aF
])
   AT_DATA([b.data], [dnl
1bN
3bO
4bP
6bQ
7bR
9bS
])
   m4_if([$2], [sav],
     [AT_DATA([save-a.sps], [dnl
DATA LIST NOTABLE FILE='a.data' /a b c 1-3 (A).
SAVE OUTFILE='a.sav'.
])
      AT_CHECK([pspp -O format=csv save-a.sps])])
   m4_if([$3], [sav],
     [AT_DATA([save-b.sps], [dnl
DATA LIST NOTABLE FILE='b.data' /a b c 1-3 (A).
SAVE OUTFILE='b.sav'.
])
      AT_CHECK([pspp -O format=csv save-b.sps])])
   m4_if([$1], [interleave],
          [m4_pushdef([BY], [[/BY a /FIRST=first /LAST=last]])
	   m4_pushdef([SORT], [[/SORT]])],
	  [m4_pushdef([BY], [])
	   m4_pushdef([SORT], [])])
   AT_DATA([add-files.sps], [dnl
m4_if([$2], [sav], [], [DATA LIST NOTABLE FILE='a.data' /a b c 1-3 (A).])
m4_if([$3], [sav], [], [DATA LIST NOTABLE FILE='b.data' /a b c 1-3 (A).])
ADD FILES
    m4_if([$2], [sav], [FILE='a.sav'], [FILE=*]) /IN=InA SORT
    m4_if([$3], [sav], [FILE='b.sav'], [FILE=*]) /IN=InB /RENAME c=d
    BY[].
LIST.
])
   m4_popdef([BY])
   m4_popdef([SORT])
   AT_CHECK([pspp -O format=csv add-files.sps], [0],
[m4_if([$1], [interleave], [dnl
Table: Data List
a,b,c,d,InA,InB,first,last
0,a,A,,1,0,1,1
1,a,B,,1,0,1,0
1,a,C,,1,0,0,0
1,b,,N,0,1,0,1
2,a,D,,1,0,1,1
3,a,E,,1,0,1,0
3,b,,O,0,1,0,1
4,a,F,,1,0,1,0
4,b,,P,0,1,0,1
5,a,G,,1,0,1,0
5,a,H,,1,0,0,1
6,a,I,,1,0,1,0
6,b,,Q,0,1,0,1
7,a,J,,1,0,1,0
7,a,K,,1,0,0,0
7,a,L,,1,0,0,0
7,b,,R,0,1,0,1
8,a,M,,1,0,1,1
9,b,,S,0,1,1,1
], [dnl
Table: Data List
a,b,c,d,InA,InB
1,a,B,,1,0
8,a,M,,1,0
3,a,E,,1,0
5,a,G,,1,0
0,a,A,,1,0
5,a,H,,1,0
6,a,I,,1,0
7,a,J,,1,0
2,a,D,,1,0
7,a,K,,1,0
1,a,C,,1,0
7,a,L,,1,0
4,a,F,,1,0
1,b,,N,0,1
3,b,,O,0,1
4,b,,P,0,1
6,b,,Q,0,1
7,b,,R,0,1
9,b,,S,0,1
])])
AT_CLEANUP
])

AT_BANNER([ADD FILES])

CHECK_ADD_FILES([interleave], [sav], [sav])
CHECK_ADD_FILES([interleave], [sav], [inline])
CHECK_ADD_FILES([interleave], [inline], [sav])
CHECK_ADD_FILES([concatenate], [sav], [sav])
CHECK_ADD_FILES([concatenate], [sav], [inline])
CHECK_ADD_FILES([concatenate], [inline], [sav])