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# 2024 March 21
#
# 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 contains tests for using databases in read-only mode on
# unix.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
if {$tcl_platform(platform)=="windows"} finish_test
source $testdir/lock_common.tcl
source $testdir/wal_common.tcl
set ::testprefix readonly
do_execsql_test 1.0 {
CREATE TABLE t1(a, b);
INSERT INTO t1 VALUES(1, 2), (3, 4), (5, 6);
}
db close
file attributes test.db -permissions r--r--r--
sqlite3 db test.db
do_catchsql_test 1.1 {
INSERT INTO t1 VALUES(7, 8);
} {1 {attempt to write a readonly database}}
do_execsql_test 1.2 {
BEGIN;
SELECT * FROM t1;
} {1 2 3 4 5 6}
# The following attempts to open a read/write fd on the database 20,000
# times. And each time instead opens a read-only fd. At one point this
# was failing to reuse cached fds, causing a "too many open file-descriptors"
# error.
do_test 1.3 {
for {set ii 0} {$ii < 20000} {incr ii} {
sqlite3 db2 test.db
db2 close
}
set {} {}
} {}
finish_test
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