mirror of
https://gitlab.com/cznic/sqlite.git
synced 2024-11-24 02:26:14 +00:00
91 lines
2.3 KiB
Plaintext
91 lines
2.3 KiB
Plaintext
# 2009 August 20
|
|
#
|
|
# 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 implements tests to verify that ticket #4018 has been
|
|
# fixed.
|
|
#
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
do_not_use_codec
|
|
|
|
proc testsql {sql} {
|
|
set fd [open tf_main.tcl w]
|
|
puts $fd [subst -nocommands {
|
|
sqlite3_test_control_pending_byte 0x0010000
|
|
sqlite3 db test.db
|
|
set rc [catch { db eval {$sql} } msg]
|
|
puts -nonewline "[set rc] {[set msg]}"
|
|
flush stdout
|
|
exit
|
|
}]
|
|
close $fd
|
|
set fd [open "| [info nameofexec] ./tf_main.tcl" r]
|
|
set res [read $fd]
|
|
close $fd
|
|
return $res
|
|
}
|
|
|
|
do_test tkt4018-1.1 {
|
|
execsql {
|
|
CREATE TABLE t1(a, b);
|
|
BEGIN;
|
|
SELECT * FROM t1;
|
|
}
|
|
} {}
|
|
|
|
# The database is locked by connection [db]. Open and close a second
|
|
# connection to test.db 10000 times. If file-descriptors are not being
|
|
# reused, then the process will quickly exceed its maximum number of
|
|
# file descriptors (1024 by default on linux).
|
|
do_test tkt4018-1.2 {
|
|
for {set i 0} {$i < 10000} {incr i} {
|
|
sqlite3 db2 test.db
|
|
db2 close
|
|
}
|
|
} {}
|
|
|
|
# Now check that connection [db] is still holding a SHARED lock by
|
|
# having a second process try to write the db.
|
|
do_test tkt4018-1.3 {
|
|
testsql {INSERT INTO t1 VALUES(3, 4)}
|
|
} {1 {database is locked}}
|
|
|
|
# Sanity checking. Have [db] release the lock and then retry the
|
|
# INSERT from the previous test case.
|
|
do_test tkt4018-1.4 {
|
|
db eval COMMIT
|
|
testsql {INSERT INTO t1 VALUES(3, 4)}
|
|
} {0 {}}
|
|
|
|
# Check that reusing a file descriptor cannot change a read-only
|
|
# connection into a read-write connection.
|
|
do_test tkt4018-2.1 {
|
|
sqlite3 db2 test.db
|
|
execsql {INSERT INTO t1 VALUES(1, 2)} db2
|
|
} {}
|
|
do_test tkt4018-2.2 {
|
|
execsql {
|
|
BEGIN;
|
|
SELECT * FROM t1 ORDER BY a;
|
|
}
|
|
} {1 2 3 4}
|
|
do_test tkt4018-2.3 {
|
|
db2 close
|
|
sqlite3 db2 test.db -readonly 1
|
|
execsql COMMIT
|
|
catchsql {INSERT INTO t1 VALUES(5, 6)} db2
|
|
} {1 {attempt to write a readonly database}}
|
|
db2 close
|
|
|
|
finish_test
|