From 18657a960e125336f704ea058e25c27bd3900dcb Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 5 May 2024 19:28:19 +0200 Subject: Adding upstream version 3.40.1. Signed-off-by: Daniel Baumann --- test/eval.test | 87 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 test/eval.test (limited to 'test/eval.test') diff --git a/test/eval.test b/test/eval.test new file mode 100644 index 0000000..159e875 --- /dev/null +++ b/test/eval.test @@ -0,0 +1,87 @@ +# 2008 July 11 +# +# 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. +# +# This file experiments with recursion using the "test_eval()" SQL function +# in order to make sure that SQLite is reentrant. +# +# $Id: eval.test,v 1.2 2008/10/13 10:37:50 danielk1977 Exp $ + +set testdir [file dirname $argv0] +source $testdir/tester.tcl + +# Create a table to work with. +# +do_test eval-1.1 { + execsql { + CREATE TABLE t1(x INTEGER PRIMARY KEY); + INSERT INTO t1 VALUES(1); + INSERT INTO t1 VALUES(2); + INSERT INTO t1 SELECT x+2 FROM t1; + INSERT INTO t1 SELECT x+4 FROM t1; + INSERT INTO t1 SELECT x+8 FROM t1; + INSERT INTO t1 SELECT x+16 FROM t1; + INSERT INTO t1 SELECT x+32 FROM t1; + INSERT INTO t1 SELECT x+64 FROM t1; + INSERT INTO t1 SELECT x+128 FROM t1; + INSERT INTO t1 SELECT x+256 FROM t1; + SELECT count(*), max(x) FROM t1; + } +} {512 512} +do_test eval-1.2 { + execsql { + SELECT x, test_eval('SELECT max(x) FROM t1 WHERE x<' || x) FROM t1 LIMIT 5 + } +} {1 {} 2 1 3 2 4 3 5 4} + +# Delete a row out from under a read cursor in the middle of +# collecting the arguments for a single row in a result set. +# Verify that subsequent rows come out as NULL. +# +do_test eval-2.1 { + execsql { + CREATE TABLE t2(x,y); + INSERT INTO t2 SELECT x, x+1 FROM t1 WHERE x<5; + SELECT x, test_eval('DELETE FROM t2 WHERE x='||x), y FROM t2; + } +} {1 {} {} 2 {} {} 3 {} {} 4 {} {}} +do_test eval-2.2 { + execsql { + SELECT * FROM t2 + } +} {} +do_test eval-2.3 { + execsql { + INSERT INTO t2 SELECT x, x+1 FROM t1 WHERE x<5; + SELECT x, test_eval('DELETE FROM t2 WHERE x='||x), y FROM t2 + ORDER BY rowid DESC; + } +} {4 {} {} 3 {} {} 2 {} {} 1 {} {}} +do_test eval-2.4 { + execsql { + SELECT * FROM t2 + } +} {} + +# Modify a row while it is being read. +# +do_test eval-3.1 { + execsql { + INSERT INTO t2 SELECT x, x+1 FROM t1 WHERE x<5; + SELECT x, test_eval('UPDATE t2 SET y=y+100 WHERE x='||x), y FROM t2; + } +} {1 {} 102 2 {} 103 3 {} 104 4 {} 105} + +do_test eval-4.1 { + execsql { SELECT test_eval('SELECT ''abcdefghij''') } +} {abcdefghij} + +finish_test -- cgit v1.2.3