cb4c40ba0e
occurs after a statement abort. (CVS 1893) FossilOrigin-Name: 6afe467d146828d67ad17af21604c2e691aa5dff
69 lines
2.3 KiB
Plaintext
69 lines
2.3 KiB
Plaintext
# 2001 September 15
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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 script is page cache subsystem.
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#
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# $Id: pager3.test,v 1.1 2004/08/18 19:09:44 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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# This test makes sure the database file is truncated back to the correct
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# length on a rollback.
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#
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# After some preliminary setup, a transaction is start at NOTE (1).
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# The create table on the following line allocates an additional page
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# at the end of the database file. But that page is not written because
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# the database still has a RESERVED lock, not an EXCLUSIVE lock. The
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# new page is held in memory and the size of the file is unchanged.
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# The insert at NOTE (2) begins adding additional pages. Then it hits
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# a constraint error and aborts. The abort causes sqlite3OsTruncate()
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# to be called to restore the file to the same length as it was after
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# the create table. But the create table results had not yet been
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# written so the file is actually lengthened by this truncate. Finally,
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# the rollback at NOTE (3) is called to undo all the changes since the
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# begin. This rollback should truncate the database again.
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#
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# This test was added because the second truncate at NOTE (3) was not
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# occurring on early versions of SQLite 3.0.
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#
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do_test pager3-1.1 {
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execsql {
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create table t1(a unique, b);
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insert into t1 values(1, 'abcdefghijklmnopqrstuvwxyz');
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insert into t1 values(2, 'abcdefghijklmnopqrstuvwxyz');
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update t1 set b=b||a||b;
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update t1 set b=b||a||b;
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update t1 set b=b||a||b;
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update t1 set b=b||a||b;
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update t1 set b=b||a||b;
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update t1 set b=b||a||b;
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create temp table t2 as select * from t1;
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begin; ------- NOTE (1)
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create table t3(x);
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}
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catchsql {
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insert into t1 select 4-a, b from t2; ----- NOTE (2)
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}
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execsql {
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rollback; ------- NOTE (3)
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}
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db close
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sqlite3 db test.db
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execsql {
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pragma integrity_check;
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}
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} ok
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finish_test
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