sqlcipher/ext/repair/test/checkfreelist01.test

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# 2017-10-11
set testprefix checkfreelist
do_execsql_test 1.0 {
PRAGMA page_size=1024;
CREATE TABLE t1(a, b);
}
do_execsql_test 1.2 { SELECT checkfreelist('main') } {ok}
do_execsql_test 1.3 {
WITH s(i) AS (
SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<10000
)
INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM s;
DELETE FROM t1 WHERE rowid%3;
PRAGMA freelist_count;
} {6726}
do_execsql_test 1.4 { SELECT checkfreelist('main') } {ok}
do_execsql_test 1.5 {
WITH freelist_trunk(i, d, n) AS (
SELECT 1, NULL, sqlite_readint32(data, 32) FROM sqlite_dbpage WHERE pgno=1
UNION ALL
SELECT n, data, sqlite_readint32(data)
FROM freelist_trunk, sqlite_dbpage WHERE pgno=n
)
SELECT i FROM freelist_trunk WHERE i!=1;
} {
10009 9715 9343 8969 8595 8222 7847 7474 7102 6727 6354 5982 5608 5234
4860 4487 4112 3740 3367 2992 2619 2247 1872 1499 1125 752 377 5
}
do_execsql_test 1.6 { SELECT checkfreelist('main') } {ok}
proc set_int {blob idx newval} {
binary scan $blob I* ints
lset ints $idx $newval
binary format I* $ints
}
db func set_int set_int
proc get_int {blob idx} {
binary scan $blob I* ints
lindex $ints $idx
}
db func get_int get_int
do_execsql_test 1.7 {
BEGIN;
UPDATE sqlite_dbpage
SET data = set_int(data, 1, get_int(data, 1)-1)
WHERE pgno=4860;
SELECT checkfreelist('main');
ROLLBACK;
} {{free-list count mismatch: actual=6725 header=6726}}
do_execsql_test 1.8 {
BEGIN;
UPDATE sqlite_dbpage
SET data = set_int(data, 5, (SELECT * FROM pragma_page_count)+1)
WHERE pgno=4860;
SELECT checkfreelist('main');
ROLLBACK;
} {{leaf page 10092 is out of range (child 3 of trunk page 4860)}}
do_execsql_test 1.9 {
BEGIN;
UPDATE sqlite_dbpage
SET data = set_int(data, 5, 0)
WHERE pgno=4860;
SELECT checkfreelist('main');
ROLLBACK;
} {{leaf page 0 is out of range (child 3 of trunk page 4860)}}
do_execsql_test 1.10 {
BEGIN;
UPDATE sqlite_dbpage
SET data = set_int(data, get_int(data, 1)+1, 0)
WHERE pgno=5;
SELECT checkfreelist('main');
ROLLBACK;
} {{leaf page 0 is out of range (child 247 of trunk page 5)}}
do_execsql_test 1.11 {
BEGIN;
UPDATE sqlite_dbpage
SET data = set_int(data, 1, 249)
WHERE pgno=5;
SELECT checkfreelist('main');
ROLLBACK;
} {{leaf count out of range (249) on trunk page 5}}