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([expression parsing])

AT_SETUP([parse expression with unknown variable crash])
AT_DATA([parse.sps], [dnl
INPUT PROGRAM.
LOOP c=1 to 10.
COMPUTE var1=NORMAL(100).
END CASE.
END LOOP.
END FILE.
END INPUT PROGRAM.


IF ( y > 0 ) .
COMPUTE x=y.
END IF.
])
AT_CHECK([pspp -O format=csv parse.sps], [1], [dnl
parse.sps:10: error: IF: Unknown identifier y.

parse.sps:11: error: Stopping syntax file processing here to avoid a cascade of dependent command failures.
])
AT_CLEANUP

AT_SETUP([parsing numeric expression with type mismatch])
AT_DATA([parse.sps], [dnl
DATA LIST NOTABLE/x 1(A).
IF 'foo'.
])
AT_CHECK([pspp -O format=csv parse.sps], [1], [dnl
"parse.sps:2: error: IF: Type mismatch: expression has string type, but a numeric value is required here."
])
AT_CLEANUP

AT_SETUP([parsing string expression with type mismatch])
AT_KEYWORDS([expression negative])
AT_DATA([parse.sps], [dnl
DATA LIST NOTABLE/x 1(A).
COMPUTE x=1.
])
AT_CHECK([pspp -O format=csv parse.sps], [1], [dnl
"parse.sps:2: error: COMPUTE: Type mismatch: expression has number type, but a string value is required here."
])
AT_CLEANUP

AT_SETUP([parse expression with unknown system variable])
AT_KEYWORDS([expression negative])
AT_DATA([parse.sps], [dnl
DATA LIST NOTABLE/x 1.
COMPUTE x=$nonexistent.
])
AT_CHECK([pspp -O format=csv parse.sps], [1], [dnl
parse.sps:2: error: COMPUTE: Unknown system variable $nonexistent.
])
AT_CLEANUP

AT_SETUP([parse expression with unknown identifier])
AT_KEYWORDS([expression negative])
AT_DATA([parse.sps], [dnl
DATA LIST NOTABLE/x 1.
COMPUTE x=y.
])
AT_CHECK([pspp -O format=csv parse.sps], [1], [dnl
parse.sps:2: error: COMPUTE: Unknown identifier y.
])
AT_CLEANUP

AT_SETUP([parse expression with extension function in compatibility mode])
AT_KEYWORDS([expression negative])
AT_DATA([parse.sps], [dnl
DEBUG EVALUATE/ACOS(0)*0.
])
AT_CHECK([pspp --testing-mode --syntax=compatible -O format=csv parse.sps], [0], [dnl
parse.sps:1: warning: DEBUG EVALUATE: ACOS(number) is a PSPP extension.
0.00
])
AT_CLEANUP

AT_SETUP([LAG expression following TEMPORARY])
AT_KEYWORDS([expression negative])
AT_DATA([parse.sps], [dnl
DATA LIST NOTABLE/x 1.
TEMPORARY
COMPUTE y=LAG(x).
])
AT_CHECK([pspp -O format=csv parse.sps], [1], [dnl
parse.sps:3: error: COMPUTE: LAG(num_variable) may not appear after TEMPORARY.
])
AT_CLEANUP

AT_SETUP([parse expression with invalid logical expression])
AT_DATA([parse.sps], [dnl
INPUT PROGRAM.
LOOP c=1 to 10.
COMPUTE var1=NORMAL(100).
END CASE.
END LOOP.
END FILE.
END INPUT PROGRAM.

SELECT IF 2.
])
AT_CHECK([pspp -O format=csv parse.sps], [1], [dnl
"parse.sps:9: error: SELECT IF: A logical expression was found to have a value other than 0 (false), 1 (true), or the system-missing value.  The result was forced to 0."
])
AT_CLEANUP