# 2018-04-28
#
# 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.
#
#***********************************************************************
# Test cases for SQLITE_DBCONFIG_RESET_DATABASE
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix resetdb
do_not_use_codec
ifcapable !vtab||!compound {
finish_test
return
}
# In the "inmemory_journal" permutation, each new connection executes
# "PRAGMA journal_mode = memory". This fails with SQLITE_BUSY if attempted
# on a wal mode database with existing connections. For this and a few
# other reasons, this test is not run as part of "inmemory_journal".
#
# Permutation "journaltest" does not support wal mode.
#
if {[permutation]=="inmemory_journal"
|| [permutation]=="journaltest"
} {
finish_test
return
}
# Create a sample database
do_execsql_test 100 {
PRAGMA auto_vacuum = 0;
PRAGMA page_size=4096;
CREATE TABLE t1(a,b);
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<20)
INSERT INTO t1(a,b) SELECT x, randomblob(300) FROM c;
CREATE INDEX t1a ON t1(a);
CREATE INDEX t1b ON t1(b);
SELECT sum(a), sum(length(b)) FROM t1;
PRAGMA integrity_check;
PRAGMA journal_mode;
PRAGMA page_count;
} {210 6000 ok delete 8}
# Verify that the same content is seen from a separate database connection
sqlite3 db2 test.db
do_test 110 {
execsql {
SELECT sum(a), sum(length(b)) FROM t1;
PRAGMA integrity_check;
PRAGMA journal_mode;
PRAGMA page_count;
} db2
} {210 6000 ok delete 8}
do_test 200 {
# Thoroughly corrupt the database file by overwriting the first
# page with randomness.
sqlite3_db_config db DEFENSIVE 0
catchsql {
UPDATE sqlite_dbpage SET data=randomblob(4096) WHERE pgno=1;
PRAGMA quick_check;
}
} {1 {file is not a database}}
do_test 201 {
catchsql {
PRAGMA quick_check;
} db2
} {1 {file is not a database}}
do_test 210 {
# Reset the database file using SQLITE_DBCONFIG_RESET_DATABASE
sqlite3_db_config db RESET_DB 1
db eval VACUUM
sqlite3_db_config db RESET_DB 0
# If using sqlite3_prepare() instead of _v2() or _v3(), the block
# below raises an SQLITE_SCHEMA error. The following fixes this.
if {[permutation]=="prepare"} { catchsql "SELECT * FROM sqlite_master" db2 }
# Verify that the reset took, even on the separate database connection
catchsql {
PRAGMA page_count;
PRAGMA page_size;
PRAGMA quick_check;
PRAGMA journal_mode;
} db2
} {0 {1 4096 ok delete}}
# Delete the old connections and database and start over again
# with a different page size and in WAL mode.
#
db close
db2 close
forcedelete test.db
sqlite3 db test.db
do_execsql_test 300 {
PRAGMA auto_vacuum = 0;
PRAGMA page_size=8192;
PRAGMA journal_mode=WAL;
CREATE TABLE t1(a,b);
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<20)
INSERT INTO t1(a,b) SELECT x, randomblob(1300) FROM c;
CREATE INDEX t1a ON t1(a);
CREATE INDEX t1b ON t1(b);
SELECT sum(a), sum(length(b)) FROM t1;
PRAGMA integrity_check;
PRAGMA journal_mode;
PRAGMA page_size;
PRAGMA page_count;
} {wal 210 26000 ok wal 8192 12}
sqlite3 db2 test.db
do_test 310 {
execsql {
SELECT sum(a), sum(length(b)) FROM t1;
PRAGMA integrity_check;
PRAGMA journal_mode;
PRAGMA page_size;
PRAGMA page_count;
} db2
} {210 26000 ok wal 8192 12}
# Corrupt the database again
sqlite3_db_config db DEFENSIVE 0
do_catchsql_test 320 {
UPDATE sqlite_dbpage SET data=randomblob(8192) WHERE pgno=1;
PRAGMA quick_check
} {1 {file is not a database}}
do_test 330 {
catchsql {
PRAGMA quick_check
} db2
} {1 {file is not a database}}
db2 cache flush ;# Required by permutation "prepare".
# Reset the database yet again. Verify that the page size and
# journal mode are preserved.
#
do_test 400 {
sqlite3_db_config db RESET_DB 1
db eval VACUUM
sqlite3_db_config db RESET_DB 0
catchsql {
PRAGMA page_count;
PRAGMA page_size;
PRAGMA journal_mode;
PRAGMA quick_check;
} db2
} {0 {1 8192 wal ok}}
db2 close
# Reset the database yet again. This time immediately after it is closed
# and reopened. So that the VACUUM is the first statement run.
#
db close
sqlite3 db test.db
do_test 500 {
sqlite3_finalize [
sqlite3_prepare db "SELECT 1 FROM sqlite_master LIMIT 1" -1 tail
]
sqlite3_db_config db RESET_DB 1
db eval VACUUM
sqlite3_db_config db RESET_DB 0
sqlite3 db2 test.db
catchsql {
PRAGMA page_count;
PRAGMA page_size;
PRAGMA journal_mode;
PRAGMA quick_check;
} db2
} {0 {1 8192 wal ok}}
db2 close
#-------------------------------------------------------------------------
reset_db
sqlite3 db2 test.db
do_execsql_test 600 {
PRAGMA journal_mode = wal;
CREATE TABLE t1(a);
INSERT INTO t1 VALUES(1), (2), (3), (4);
} {wal}
do_execsql_test -db db2 610 {
SELECT * FROM t1
} {1 2 3 4}
do_test 620 {
set res [list]
db2 eval {SELECT a FROM t1} {
lappend res $a
if {$a==3} {
sqlite3_db_config db RESET_DB 1
db eval VACUUM
sqlite3_db_config db RESET_DB 0
}
}
set res
} {1 2 3 4}
do_execsql_test -db db2 630 {
SELECT * FROM sqlite_master
} {}
#-------------------------------------------------------------------------
db2 close
reset_db
do_execsql_test 700 {
PRAGMA page_size=512;
PRAGMA auto_vacuum = 0;
CREATE TABLE t1(a,b,c);
CREATE INDEX t1a ON t1(a);
CREATE INDEX t1bc ON t1(b,c);
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<10)
INSERT INTO t1(a,b,c) SELECT x, randomblob(100),randomblob(100) FROM c;
PRAGMA page_count;
PRAGMA integrity_check;
} {19 ok}
if {[nonzero_reserved_bytes]} {
finish_test
return
}
sqlite3_db_config db DEFENSIVE 0
do_execsql_test 710 {
UPDATE sqlite_dbpage SET data=
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pgno=1;
}
do_execsql_test 720 {
PRAGMA integrity_check;
} {ok}
do_test 730 {
sqlite3_db_config db RESET_DB 1
db eval VACUUM
sqlite3_db_config db RESET_DB 0
} {0}
do_execsql_test 740 {
PRAGMA page_count;
PRAGMA integrity_check;
} {1 ok}
finish_test