150 lines
4.0 KiB
Plaintext
150 lines
4.0 KiB
Plaintext
# 2014 October 22
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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if {![info exists testdir]} {
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set testdir [file join [file dirname [info script]] .. .. test]
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}
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source $testdir/tester.tcl
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set ::testprefix rbucrash
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db close
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forcedelete test.db-oal rbu.db
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sqlite3_shutdown
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sqlite3_config_uri 1
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reset_db
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# Set up a target database and an rbu update database. The target
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# db is the usual "test.db", the rbu db is "test.db2".
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#
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forcedelete test.db2
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do_execsql_test 1.0 {
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CREATE TABLE t1(a, b, c, PRIMARY KEY(a), UNIQUE(b));
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INSERT INTO t1 VALUES(1, 2, 3);
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INSERT INTO t1 VALUES(4, 5, 6);
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INSERT INTO t1 VALUES(7, 8, 9);
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ATTACH 'test.db2' AS rbu;
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CREATE TABLE rbu.data_t1(a, b, c, rbu_control);
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INSERT INTO data_t1 VALUES(10, 11, 12, 0);
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INSERT INTO data_t1 VALUES(13, 14, 15, 0);
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INSERT INTO data_t1 VALUES(4, NULL, NULL, 1);
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INSERT INTO data_t1 VALUES(1, NULL, 100, '..x');
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}
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db_save_and_close
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# Determine the number of steps in applying the rbu update to the test
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# target database created above. Set $::rbu_num_steps accordingly
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#
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# Check that the same number of steps are required to apply the rbu
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# update using many calls to sqlite3rbu_step() on a single rbu handle
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# as required to apply it using a series of rbu handles, on each of
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# which sqlite3rbu_step() is called once.
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#
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do_test 1.1 {
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db_restore
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sqlite3rbu rbu test.db test.db2
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breakpoint
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set nStep 0
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while {[rbu step]=="SQLITE_OK"} { incr nStep }
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rbu close
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} {SQLITE_DONE}
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set rbu_num_steps $nStep
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do_test 1.2 {
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db_restore
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set nStep 0
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while {1} {
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sqlite3rbu rbu test.db test.db2
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rbu step
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if {[rbu close]=="SQLITE_DONE"} break
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incr nStep
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}
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set nStep
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} $rbu_num_steps
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# Run one or more tests using the target (test.db) and rbu (test.db2)
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# databases created above. As follows:
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#
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# 1. This process starts the rbu update and calls sqlite3rbu_step()
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# $nPre times. Then closes the rbu update handle.
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#
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# 2. A second process resumes the rbu update and attempts to call
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# sqlite3rbu_step() $nStep times before closing the handle. A
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# crash is simulated during each xSync() of file test.db2.
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#
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# 3. This process attempts to resume the rbu update from whatever
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# state it was left in by step (2). Test that it is successful
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# in doing so and that the final target database is as expected.
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#
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# In total (nSync+1) tests are run, where nSync is the number of times
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# xSync() is called on test.db2.
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#
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proc do_rbu_crash_test {tn nPre nStep} {
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set script [subst -nocommands {
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sqlite3rbu rbu test.db file:test.db2?vfs=crash
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set i 0
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while {[set i] < $nStep} {
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if {[rbu step]!="SQLITE_OK"} break
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incr i
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}
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rbu close
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}]
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set bDone 0
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for {set iDelay 1} {$bDone==0} {incr iDelay} {
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forcedelete test.db2 test.db2-journal test.db test.db-oal test.db-wal
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db_restore
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if {$nPre>0} {
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sqlite3rbu rbu test.db file:test.db2
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set i 0
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for {set i 0} {$i < $nPre} {incr i} {
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if {[rbu step]!="SQLITE_OK"} break
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}
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rbu close
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}
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set res [
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crashsql -file test.db2 -delay $iDelay -tclbody $script -opendb {} {}
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]
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set bDone 1
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if {$res == "1 {child process exited abnormally}"} {
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set bDone 0
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} elseif {$res != "0 {}"} {
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error "unexected catchsql result: $res"
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}
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sqlite3rbu rbu test.db test.db2
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while {[rbu step]=="SQLITE_OK"} {}
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rbu close
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sqlite3 db test.db
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do_execsql_test $tn.delay=$iDelay {
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SELECT * FROM t1;
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PRAGMA integrity_check;
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} {1 2 100 7 8 9 10 11 12 13 14 15 ok}
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db close
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}
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}
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for {set nPre 0} {$nPre < $rbu_num_steps} {incr nPre} {
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for {set is 1} {$is <= ($rbu_num_steps - $nPre)} {incr is} {
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do_rbu_crash_test 2.pre=$nPre.step=$is $nPre $is
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}
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}
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finish_test
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