| # 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}} |