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SQLite training in Houston TX on 2019-11-05 (details)
Part of the 2019 Tcl Conference

Artifact fc2754d38892f7dac30c22db3616c2764f117d66:


# 2014-11-10
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.
# The focus of this script is testing the "eval.c" loadable extension.
# 

set testdir [file dirname $argv0]
source $testdir/tester.tcl

load_static_extension db eval
do_execsql_test misc8-1.0 {
  CREATE TABLE t1(a,b,c);
  INSERT INTO t1 VALUES(1,2,3),(4,5,6);
  SELECT quote(eval('SELECT * FROM t1 ORDER BY a','-abc-'));
} {'1-abc-2-abc-3-abc-4-abc-5-abc-6'}
do_execsql_test misc8-1.1 {
  SELECT quote(eval('SELECT * FROM t1 ORDER BY a'));
} {{'1 2 3 4 5 6'}}
do_catchsql_test misc8-1.2 {
  SELECT quote(eval('SELECT d FROM t1 ORDER BY a'));
} {1 {no such column: d}}
do_execsql_test misc8-1.3 {
  INSERT INTO t1 VALUES(7,null,9);
  SELECT eval('SELECT * FROM t1 ORDER BY a',',');
} {1,2,3,4,5,6,7,,9}
do_catchsql_test misc8-1.4 {
  BEGIN;
  INSERT INTO t1 VALUES(10,11,12);
  SELECT a, coalesce(b, eval('ROLLBACK; SELECT ''bam'';')), c
   FROM t1 ORDER BY a;
} {0 {1 2 3 4 5 6 7 bam 9}}
do_catchsql_test misc8-1.5 {
  INSERT INTO t1 VALUES(10,11,12);
  SELECT a, coalesce(b, eval('SELECT ''bam''')), c
    FROM t1
   ORDER BY rowid;
} {0 {1 2 3 4 5 6 7 bam 9 10 11 12}}
do_catchsql_test misc8-1.6 {
  SELECT a, coalesce(b, eval('DELETE FROM t1; SELECT ''bam''')), c
    FROM t1
   ORDER BY rowid;
} {0 {1 2 3 4 5 6 7 bam {}}}
do_catchsql_test misc8-1.7 {
  INSERT INTO t1 VALUES(1,2,3),(4,5,6),(7,null,9);
  BEGIN;
  CREATE TABLE t2(x);
  SELECT a, coalesce(b, eval('ROLLBACK; SELECT ''bam''')), c
    FROM t1
   ORDER BY rowid;
} {1 {abort due to ROLLBACK}}


reset_db

proc dbeval {sql} { db eval $sql }
db func eval dbeval

do_execsql_test misc8-2.1 {
  CREATE TABLE t1(a INTEGER PRIMARY KEY, b INTEGER) WITHOUT ROWID;
  CREATE TABLE t2(c INTEGER PRIMARY KEY, d INTEGER, x BLOB);
  INSERT INTO t1 VALUES(0,0);
  INSERT INTO t1 VALUES(10,10);
  INSERT INTO t2 VALUES(1,1,zeroblob(200));
  INSERT INTO t2 VALUES(2,2,zeroblob(200));
  INSERT INTO t2 VALUES(3,3,zeroblob(200));
  INSERT INTO t2 VALUES(4,4,zeroblob(200));
  INSERT INTO t2 VALUES(5,5,zeroblob(200));
  INSERT INTO t2 VALUES(6,6,zeroblob(200));
  INSERT INTO t2 VALUES(7,7,zeroblob(200));
  INSERT INTO t2 VALUES(8,8,zeroblob(200));
  INSERT INTO t2 VALUES(9,9,zeroblob(200));
  INSERT INTO t2 VALUES(10,10,zeroblob(200));
  SELECT a, c, eval(
      printf('DELETE FROM t2 WHERE c=%d AND %d>5', a+c, a+c)
  ) FROM t1, t2;
} {
  0 1 {} 10 1 {} 
  0 2 {} 10 2 {} 
  0 3 {} 10 3 {} 
  0 4 {} 10 4 {} 
  0 5 {} 10 5 {} 
  0 6 {} 10 {} {} 
  0 7 {} 10 {} {} 
  0 8 {} 10 {} {}
  0 9 {} 10 {} {} 
  0 10 {} 10 {} {}
}


finish_test