151 lines
4.0 KiB
Plaintext
151 lines
4.0 KiB
Plaintext
# 2004 June 30
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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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# This file implements regression tests for SQLite library. The
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# focus of this file is verifying that a rollback in one statement
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# caused by an ON CONFLICT ROLLBACK clause aborts any other pending
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# statements.
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#
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# $Id: rollback.test,v 1.11 2009/06/26 07:12:07 danielk1977 Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set DB [sqlite3_connection_pointer db]
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do_test rollback-1.1 {
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execsql {
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CREATE TABLE t1(a);
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INSERT INTO t1 VALUES(1);
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INSERT INTO t1 VALUES(2);
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INSERT INTO t1 VALUES(3);
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INSERT INTO t1 VALUES(4);
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SELECT * FROM t1;
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}
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} {1 2 3 4}
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ifcapable conflict {
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do_test rollback-1.2 {
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execsql {
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CREATE TABLE t3(a unique on conflict rollback);
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INSERT INTO t3 SELECT a FROM t1;
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BEGIN;
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INSERT INTO t1 SELECT * FROM t1;
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}
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} {}
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}
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do_test rollback-1.3 {
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set STMT [sqlite3_prepare $DB "SELECT a FROM t1" -1 TAIL]
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sqlite3_step $STMT
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} {SQLITE_ROW}
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ifcapable conflict {
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# This causes a ROLLBACK, which deletes the table out from underneath the
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# SELECT statement.
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#
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do_test rollback-1.4 {
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catchsql {
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INSERT INTO t3 SELECT a FROM t1;
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}
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} {1 {UNIQUE constraint failed: t3.a}}
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# Try to continue with the SELECT statement
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#
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do_test rollback-1.5 {
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sqlite3_step $STMT
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} {SQLITE_ROW}
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# Restart the SELECT statement
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#
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do_test rollback-1.6 { sqlite3_reset $STMT } {SQLITE_OK}
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} else {
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do_test rollback-1.6 { sqlite3_reset $STMT } {SQLITE_OK}
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}
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do_test rollback-1.7 {
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sqlite3_step $STMT
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} {SQLITE_ROW}
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do_test rollback-1.8 {
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sqlite3_step $STMT
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} {SQLITE_ROW}
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do_test rollback-1.9 {
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sqlite3_finalize $STMT
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} {SQLITE_OK}
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if {$tcl_platform(platform) == "unix"
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&& [permutation] ne "onefile"
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&& [permutation] ne "inmemory_journal"
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} {
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do_test rollback-2.1 {
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execsql {
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BEGIN;
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INSERT INTO t3 VALUES('hello world');
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}
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forcecopy test.db testA.db
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forcecopy test.db-journal testA.db-journal
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execsql {
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COMMIT;
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}
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} {}
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# At this point files testA.db and testA.db-journal are present in the
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# file system. This block adds a master-journal file pointer to the
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# end of testA.db-journal. The master-journal file does not exist.
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#
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set mj [file normalize testA.db-mj-123]
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binary scan $mj c* a
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set cksum 0
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foreach i $a { incr cksum $i }
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set mj_pgno [expr $sqlite_pending_byte / 1024]
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set zAppend [binary format Ia*IIa8 $mj_pgno $mj [string length $mj] $cksum \
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"\xd9\xd5\x05\xf9\x20\xa1\x63\xd7"
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]
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set iOffset [expr (([file size testA.db-journal] + 511)/512)*512]
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set fd [open testA.db-journal a+]
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fconfigure $fd -encoding binary -translation binary
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seek $fd $iOffset
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puts -nonewline $fd $zAppend
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# Also, fix the first journal-header in the journal-file. Because the
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# journal file has not yet been synced, the 8-byte magic string at the
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# start of the first journal-header has not been written by SQLite.
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# So write it now.
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seek $fd 0
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puts -nonewline $fd "\xd9\xd5\x05\xf9\x20\xa1\x63\xd7"
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close $fd
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# Open a handle on testA.db and use it to query the database. At one
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# point the first query would attempt a hot rollback, attempt to open
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# the master-journal file and return SQLITE_CANTOPEN when it could not
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# be opened. This is incorrect, it should simply delete the journal
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# file and proceed with the query.
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#
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do_test rollback-2.2 {
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sqlite3 db2 testA.db
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execsql {
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SELECT distinct tbl_name FROM sqlite_master;
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} db2
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} {t1 t3}
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if {[lsearch {exclusive persistent_journal no_journal} [permutation]]<0} {
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do_test rollback-2.3 {
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file exists testA.db-journal
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} 0
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}
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do_test rollback-2.4 {
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execsql {
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SELECT distinct tbl_name FROM sqlite_master;
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} db2
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} {t1 t3}
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db2 close
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}
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finish_test
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