xref: /sqlite-3.40.0/test/btree02.test (revision 38d69855)
1# 2015-03-25
2#
3# The author disclaims copyright to this source code.  In place of
4# a legal notice, here is a blessing:
5#
6#    May you do good and not evil.
7#    May you find forgiveness for yourself and forgive others.
8#    May you share freely, never taking more than you give.
9#
10#***********************************************************************
11# This file implements regression tests for SQLite library.
12#
13# The focus of this script is making multiple calls to saveCursorPosition()
14# and restoreCursorPosition() when cursors have eState==CURSOR_SKIPNEXT
15#
16
17set testdir [file dirname $argv0]
18source $testdir/tester.tcl
19
20load_static_extension db eval
21do_execsql_test btree02-100 {
22  CREATE TABLE t1(a TEXT, ax INTEGER, b INT, PRIMARY KEY(a,ax)) WITHOUT ROWID;
23  WITH RECURSIVE c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<10)
24    INSERT INTO t1(a,ax,b) SELECT printf('%02x',i), random(), i FROM c;
25  CREATE INDEX t1a ON t1(a);
26  CREATE TABLE t2(x,y);
27  CREATE TABLE t3(cnt);
28  WITH RECURSIVE c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<4)
29    INSERT INTO t3(cnt) SELECT i FROM c;
30  SELECT count(*) FROM t1;
31} {10}
32do_test btree02-110 {
33  db eval BEGIN
34  set i 0
35  db eval {SELECT a, ax, b, cnt FROM t1 CROSS JOIN t3 WHERE b IS NOT NULL} {
36    db eval {INSERT INTO t2(x,y) VALUES($b,$cnt)}
37    # puts "a,b,cnt = ($a,$b,$cnt)"
38    incr i
39    if {$i%2==1} {
40      set bx [expr {$b+1000}]
41      # puts "INSERT ($a),$bx"
42      db eval {INSERT INTO t1(a,ax,b) VALUES(printf('(%s)',$a),random(),$bx)}
43    } else {
44      # puts "DELETE a=$a"
45      db eval {DELETE FROM t1 WHERE a=$a}
46    }
47    db eval {COMMIT; BEGIN}
48  }
49  db one {COMMIT; SELECT count(*) FROM t1;}
50} {20}
51
52finish_test
53