# 2014 October 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 the RBU module. Specifically, it tests the
# outcome of some other client writing to the database while an RBU update
# is being applied.
if {![info exists testdir]} {
set testdir [file join [file dirname [info script]] .. .. test]
}
source $testdir/tester.tcl
set ::testprefix rbu6
proc setup_test {} {
reset_db
execsql {
CREATE TABLE t1(a INTEGER PRIMARY KEY, b UNIQUE);
CREATE TABLE t2(a INTEGER PRIMARY KEY, b UNIQUE);
CREATE TABLE t3(a INTEGER PRIMARY KEY, b UNIQUE);
}
db close
forcedelete rbu.db
sqlite3 rbu rbu.db
rbu eval {
CREATE TABLE data_t1(a, b, rbu_control);
CREATE TABLE data_t2(a, b, rbu_control);
CREATE TABLE data_t3(a, b, rbu_control);
INSERT INTO data_t1 VALUES(1, 't1', 0);
INSERT INTO data_t2 VALUES(2, 't2', 0);
INSERT INTO data_t3 VALUES(3, 't3', 0);
}
rbu close
}
# Test the outcome of some other client writing the db while the *-oal
# file is being generated. Once this has happened, the update cannot be
# progressed.
#
for {set nStep 1} {$nStep < 8} {incr nStep} {
do_test 1.$nStep.1 {
setup_test
sqlite3rbu rbu test.db rbu.db
for {set i 0} {$i<$nStep} {incr i} {rbu step}
rbu close
sqlite3 db test.db
execsql { INSERT INTO t1 VALUES(5, 'hello') }
sqlite3rbu rbu test.db rbu.db
rbu step
} {SQLITE_BUSY}
do_test 1.$nStep.2 {
rbu step
} {SQLITE_BUSY}
do_test 1.$nStep.3 {
list [file exists test.db-oal] [file exists test.db-wal]
} {1 0}
do_test 1.$nStep.4 {
list [catch { rbu close } msg] $msg
} {1 {SQLITE_BUSY - database modified during rbu update}}
}
# Test the outcome of some other client writing the db after the *-oal
# file has been copied to the *-wal path. Once this has happened, any
# other client writing to the db causes RBU to consider its job finished.
#
for {set nStep 8} {$nStep < 20} {incr nStep} {
do_test 1.$nStep.1 {
setup_test
sqlite3rbu rbu test.db rbu.db
for {set i 0} {$i<$nStep} {incr i} {rbu step}
rbu close
sqlite3 db test.db
execsql { INSERT INTO t1 VALUES(5, 'hello') }
sqlite3rbu rbu test.db rbu.db
rbu step
} {SQLITE_DONE}
do_test 1.$nStep.2 {
rbu step
} {SQLITE_DONE}
do_test 1.$nStep.3 {
file exists test.db-oal
} {0}
do_test 1.$nStep.4 {
list [catch { rbu close } msg] $msg
} {0 SQLITE_DONE}
do_execsql_test 1.$nStep.5 {
SELECT * FROM t1;
} {1 t1 5 hello}
}
finish_test