dnl PSPP - a program for statistical analysis.
dnl Copyright (C) 2017 Free Software Foundation, Inc.
dnl
dnl This program is free software: you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation, either version 3 of the License, or
dnl (at your option) any later version.
dnl
dnl This program is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this program.  If not, see <http://www.gnu.org/licenses/>.
dnl
AT_BANNER([DELETE VARIABLES])

dnl Checks for regressions against a crash reported in bug #38843.
AT_SETUP([DELETE VARIABLES with FILTER])
AT_DATA([delete-variables.sps], [dnl
DATA LIST LIST /a b.
BEGIN DATA.
1 3
4 6
7 9
END DATA.

FILTER BY b.
DELETE VARIABLES a.
LIST.
])
AT_CHECK([pspp -O format=csv delete-variables.sps], [0], [dnl
Table: Reading free-form data from INLINE.
Variable,Format
a,F8.0
b,F8.0

Table: Data List
b
3.00
6.00
9.00
])
AT_CLEANUP

dnl Checks for regression against a crash reported on pspp-users:
dnl https://lists.gnu.org/archive/html/pspp-users/2021-03/msg00025.html
AT_SETUP([DELETE VARIABLES with string variables])
AT_DATA([delete-variables.sps], [dnl
DATA LIST NOTABLE /s1 TO s2 1-2(A).
BEGIN DATA
12
END DATA.
DELETE VARIABLES s1.
NUMERIC n1.
LIST.
])
AT_CHECK([pspp -O format=csv delete-variables.sps], [0], [dnl
Table: Data List
s2,n1
2,.  @&t@
])
AT_CLEANUP

dnl Checks for regression against a crash by Frans Houuweling
dnl on Feb. 18, 2023.
AT_SETUP([DELETE VARIABLES crash])
AT_DATA([delete-variables.sps], [dnl
DATA LIST NOTABLE LIST
  /ID (A8) respondent_city_of_birth (A25) respondent_name (A20) respondent_surname (A30) respondent_year_of_birth (F4.0).
BEGIN DATA
195 Amsterdam Floris "van Gelder" 1958
END DATA.
STRING varlist (A64).
COMPUTE found = 0.
EXECUTE.
MATCH FILES FILE= * /KEEP = ID TO respondent_name ALL.
EXECUTE.
DELETE VARIABLES respondent_surname found .
LIST.
])
AT_CHECK([pspp --testing-mode -O format=csv delete-variables.sps], [0], [dnl
Table: Data List
ID,respondent_city_of_birth,respondent_name,respondent_year_of_birth,varlist
195,Amsterdam,Floris,1958,
])
AT_CLEANUP

dnl Checks for regression against a crash reported privately by
dnl knassen(at)chartermi.net on March 1, 2023.
AT_SETUP([DELETE VARIABLES crash 2])
AT_DATA([delete-variables.sps], [dnl
DATA LIST LIST NOTABLE /foo (A5).
STRING bar (A8).
DELETE VARIABLES foo.
LIST.
BEGIN DATA.
asdf
END DATA.
])
AT_CHECK([pspp -O format=csv delete-variables.sps], [0], [dnl
Table: Data List
bar

])
AT_CLEANUP

AT_SETUP([DELETE VARIABLES syntax errors])
AT_DATA([delete-variables.sps], [dnl
DATA LIST LIST NOTABLE /x y z.
BEGIN DATA.
1 2 3
END DATA.
DELETE VARIABLES x y z.
TEMPORARY.
DELETE VARIABLES x.
COMPUTE y=0.
DELETE VARIABLES x.
])
AT_DATA([insert.sps], [dnl
INSERT FILE='delete-variables.sps' ERROR=IGNORE.
])
AT_CHECK([pspp --testing-mode -O format=csv insert.sps], [1], [dnl
"delete-variables.sps:5.1-5.22: error: DELETE VARIABLES: DELETE VARIABLES may not be used to delete all variables from the active dataset dictionary.  Use NEW FILE instead.
    5 | DELETE VARIABLES x y z.
      | ^~~~~~~~~~~~~~~~~~~~~~"

"delete-variables.sps:7.1-7.16: error: DELETE VARIABLES: DELETE VARIABLES may not be used after TEMPORARY.
    7 | DELETE VARIABLES x.
      | ^~~~~~~~~~~~~~~~"

"delete-variables.sps:9.1-9.16: error: DELETE VARIABLES: DELETE VARIABLES may not be used when there are pending transformations (use EXECUTE to execute transformations).
    9 | DELETE VARIABLES x.
      | ^~~~~~~~~~~~~~~~"
])
AT_CLEANUP
