3 # The author disclaims copyright to this source code. In place of
4 # a legal notice, here is a blessing:
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.
10 #***********************************************************************
13 set testdir [file dirname $argv0]
14 source $testdir/tester.tcl
16 ifcapable {!pager_pragmas} {
21 #-------------------------------------------------------------------------
22 # The tests in this file check that the following two bugs (both now fixed)
25 # jrnlmode2-1.*: Demonstrate bug #3745:
27 # In persistent journal mode, if:
29 # * There is a persistent journal in the file-system, AND
30 # * there exists a connection with a shared lock on the db file,
32 # then a second connection cannot open a read-transaction on the database.
33 # The reason is because while determining that the persistent-journal is
34 # not a hot-journal, SQLite currently grabs an exclusive lock on the
35 # database file. If this fails because another connection has a shared
36 # lock, then SQLITE_BUSY is returned to the user.
38 # jrnlmode2-2.*: Demonstrate bug #3751:
40 # If a connection is opened in SQLITE_OPEN_READONLY mode, the underlying
41 # unix file descriptor on the database file is opened in O_RDONLY mode.
43 # When SQLite queries the database file for the schema in order to compile
44 # the SELECT statement, it sees the empty journal in the file system, it
45 # attempts to obtain an exclusive lock on the database file (this is a
46 # bug). The attempt to obtain an exclusive (write) lock on a read-only file
47 # fails at the OS level. Under unix, fcntl() reports an EBADF - "Bad file
48 # descriptor" - error.
51 do_test jrnlmode2-1.1 {
53 PRAGMA journal_mode = persist;
54 CREATE TABLE t1(a, b);
55 INSERT INTO t1 VALUES(1, 2);
59 do_test jrnlmode2-1.2 {
60 file exists test.db-journal
63 do_test jrnlmode2-1.3 {
65 execsql { SELECT * FROM t1 } db2
68 do_test jrnlmode2-1.4 {
70 INSERT INTO t1 VALUES(3, 4);
76 execsql { PRAGMA lock_status }
77 } {main shared temp closed}
79 do_test jrnlmode2-1.5 {
80 file exists test.db-journal
83 do_test jrnlmode2-1.6 {
84 catchsql { SELECT * FROM t1 } db2
87 do_test jrnlmode2-1.7 {
89 catchsql { SELECT * FROM t1 } db2
94 do_test jrnlmode2-2.1 {
96 execsql { PRAGMA journal_mode = truncate }
97 execsql { INSERT INTO t1 VALUES(5, 6) }
100 do_test jrnlmode2-2.2 {
101 file exists test.db-journal
104 do_test jrnlmode2-2.3 {
105 file size test.db-journal
108 do_test jrnlmode2-2.4 {
109 sqlite3 db2 test.db -readonly 1
110 catchsql { SELECT * FROM t1 } db2
113 do_test jrnlmode2-2.5 {
115 delete_file test.db-journal
117 do_test jrnlmode2-2.6 {
118 sqlite3 db2 test.db -readonly 1
119 catchsql { SELECT * FROM t1 } db2