xref: /sqlite-3.40.0/test/tempdb.test (revision 69aedc8d) 
1# 2008 April 14
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# The focus of this file is in making sure that rolling back
13# a statement journal works correctly.
14#
15# $Id: tempdb.test,v 1.4 2009/06/05 17:09:12 drh Exp $
16
17set testdir [file dirname $argv0]
18source $testdir/tester.tcl
19
20if {[atomic_batch_write test.db]} {
21  finish_test
22  return
23}
24
25# Use a temporary database.
26#
27db close
28sqlite3 db {}
29
30# Force a statement journal rollback on a database file that
31# has never been opened.
32#
33do_test tempdb-1.1 {
34  execsql {
35    BEGIN;
36    CREATE TABLE t1(x UNIQUE);
37    CREATE TABLE t2(y);
38    INSERT INTO t2 VALUES('hello');
39    INSERT INTO t2 VALUES(NULL);
40  }
41  # Because of the transaction, the temporary database file
42  # has not even been opened yet.  The following statement
43  # will cause a statement journal rollback on this non-existant
44  # file.
45  catchsql {
46    INSERT INTO t1
47    SELECT CASE WHEN y IS NULL THEN test_error('oops', 11) ELSE y END
48      FROM t2;
49  }
50} {1 oops}
51
52# Verify that no writes occurred in t1.
53#
54do_test tempdb-1.2 {
55  execsql {
56    SELECT * FROM t1
57  }
58} {}
59
60do_test tempdb-2.1 {
61  # Set $::jrnl_in_memory if the journal file is expected to be in-memory.
62  # Similarly, set $::subj_in_memory if the sub-journal file is expected
63  # to be in memory. These variables are used to calculate the expected
64  # number of open files in the test cases below.
65  #
66  set jrnl_in_memory [expr {[permutation] eq "inmemory_journal"}]
67  set subj_in_memory [expr {$jrnl_in_memory || $TEMP_STORE>=2}]
68
69  db close
70  sqlite3 db test.db
71} {}
72do_test tempdb-2.2 {
73  execsql {
74    CREATE TABLE t1 (a PRIMARY KEY, b, c);
75    CREATE TABLE t2 (a, b, c);
76    BEGIN;
77      INSERT INTO t1 VALUES(1, 2, 3);
78      INSERT INTO t1 VALUES(4, 5, 6);
79      INSERT INTO t2 VALUES(7, 8, 9);
80      INSERT INTO t2 SELECT * FROM t1;
81  }
82  catchsql { INSERT INTO t1 SELECT * FROM t2 }
83  set sqlite_open_file_count
84} [expr 1 + (0==$jrnl_in_memory)]
85do_test tempdb-2.3 {
86  execsql {
87    PRAGMA temp_store = 'memory';
88    ROLLBACK;
89    BEGIN;
90      INSERT INTO t1 VALUES(1, 2, 3);
91      INSERT INTO t1 VALUES(4, 5, 6);
92      INSERT INTO t2 SELECT * FROM t1;
93  }
94  catchsql { INSERT INTO t1 SELECT * FROM t2 }
95  set sqlite_open_file_count
96} [expr 1 + (0==$jrnl_in_memory)]
97
98finish_test
99