0cf68fa4c6
randomblob() function when in testing mode. FossilOrigin-Name: 7c3a86b9c7e2a35ce755c32b38e911e79d843fad
85 lines
2.7 KiB
Plaintext
85 lines
2.7 KiB
Plaintext
# 2010 June 16
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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. Specifically,
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# it tests that ticket [fc62af4523] has been resolved.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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source $testdir/lock_common.tcl
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source $testdir/malloc_common.tcl
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do_test tkt-fc62af4523.1 {
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execsql {
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PRAGMA cache_size = 10;
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PRAGMA journal_mode = persist;
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CREATE TABLE t1(a UNIQUE, b UNIQUE);
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INSERT INTO t1 SELECT randomblob(200), randomblob(300);
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INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; -- 2
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INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; -- 4
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INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; -- 8
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INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; -- 16
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INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; -- 32
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INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; -- 64
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}
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execsql {
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PRAGMA integrity_check;
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SELECT count(*) FROM t1;
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}
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} {ok 64}
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# Launch an external process. Have it write (but not commit) a large
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# transaction to the database.
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#
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set ::chan [launch_testfixture]
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proc buddy {code} { testfixture $::chan $code }
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do_test tkt-fc62af4523.2 {
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testfixture $::chan {
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sqlite3 db test.db
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db eval {
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PRAGMA cache_size = 10;
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BEGIN;
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UPDATE t1 SET b = randomblob(400);
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UPDATE t1 SET a = randomblob(201);
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}
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}
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file exists test.db-journal
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} {1}
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# Now do "PRAGMA journal_mode = DELETE" in this process. At one point
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# this was causing SQLite to delete the journal file from the file-system,
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# even though the external process is currently using it.
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#
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do_test tkt-fc62af4523.3 { execsql { PRAGMA journal_mode = DELETE } } {delete}
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do_test tkt-fc62af4523.4 { file exists test.db-journal } {1}
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# Cause the external process to crash. Since it has already written
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# uncommitted data into the database file, the next reader will have
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# to do a hot-journal rollback to recover the database.
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#
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# Or, if this test is run in a version with the bug present, the journal
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# file has already been deleted. In this case we are left with a corrupt
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# database file and no hot-journal to fix it with.
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#
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do_test tkt-fc62af4523.5 {
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testfixture $::chan sqlite_abort
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} {ERROR: Child process hung up}
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after 200
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do_test tkt-fc62af4523.6 {
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execsql {
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PRAGMA integrity_check;
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SELECT count(*) FROM t1;
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}
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} {ok 64}
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catch { close $::chan }
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finish_test
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