1 # 2010 July 28 2 # 3 # The author disclaims copyright to this source code. In place of 4 # a legal notice, here is a blessing: 5 # 6 # May you do good and not evil. 7 # May you find forgiveness for yourself and forgive others. 8 # May you share freely, never taking more than you give. 9 # 10 #*********************************************************************** 11 # 12 13 set testdir [file dirname $argv0] 14 source $testdir/tester.tcl 15 16 file_control_chunksize_test db main [expr 1024*1024] 17 18 do_test fallocate-1.1 { 19 execsql { 20 PRAGMA page_size = 1024; 21 PRAGMA auto_vacuum = 1; 22 CREATE TABLE t1(a, b); 23 } 24 file size test.db 25 } [expr 1*1024*1024] 26 27 do_test fallocate-1.2 { 28 execsql { INSERT INTO t1 VALUES(1, zeroblob(1024*900)) } 29 file size test.db 30 } [expr 1*1024*1024] 31 32 do_test fallocate-1.3 { 33 execsql { INSERT INTO t1 VALUES(2, zeroblob(1024*900)) } 34 file size test.db 35 } [expr 2*1024*1024] 36 37 do_test fallocate-1.4 { 38 execsql { DELETE FROM t1 WHERE a = 1 } 39 file size test.db 40 } [expr 1*1024*1024] 41 42 do_test fallocate-1.5 { 43 execsql { DELETE FROM t1 WHERE a = 2 } 44 file size test.db 45 } [expr 1*1024*1024] 46 47 do_test fallocate-1.6 { 48 execsql { PRAGMA freelist_count } 49 } {0} 50 51 # Start a write-transaction and read the "database file size" field from 52 # the journal file. This field should be set to the number of pages in 53 # the database file based on the size of the file on disk, not the actual 54 # logical size of the database within the file. 55 # 56 # We need to check this to verify that if in the unlikely event a rollback 57 # causes a database file to grow, the database grows to its previous size 58 # on disk, not to the minimum size required to hold the database image. 59 # 60 do_test fallocate-1.7 { 61 execsql { BEGIN; INSERT INTO t1 VALUES(1, 2); } 62 if {[permutation] != "inmemory_journal"} { 63 hexio_get_int [hexio_read test.db-journal 16 4] 64 } else { 65 set {} 1024 66 } 67 } {1024} 68 do_test fallocate-1.8 { execsql { COMMIT } } {} 69 70 71 #------------------------------------------------------------------------- 72 # The following tests - fallocate-2.* - test that things work in WAL 73 # mode as well. 74 # 75 set skipwaltests [expr { 76 [permutation]=="journaltest" || [permutation]=="inmemory_journal" 77 }] 78 ifcapable !wal { set skipwaltests 1 } 79 80 if {!$skipwaltests} { 81 db close 82 file delete -force test.db 83 sqlite3 db test.db 84 file_control_chunksize_test db main [expr 32*1024] 85 86 do_test fallocate-2.1 { 87 execsql { 88 PRAGMA page_size = 1024; 89 PRAGMA journal_mode = WAL; 90 CREATE TABLE t1(a, b); 91 } 92 file size test.db 93 } [expr 32*1024] 94 95 do_test fallocate-2.2 { 96 execsql { INSERT INTO t1 VALUES(1, zeroblob(35*1024)) } 97 execsql { PRAGMA wal_checkpoint } 98 file size test.db 99 } [expr 64*1024] 100 101 do_test fallocate-2.3 { 102 execsql { DELETE FROM t1 } 103 execsql { VACUUM } 104 file size test.db 105 } [expr 64*1024] 106 107 do_test fallocate-2.4 { 108 execsql { PRAGMA wal_checkpoint } 109 file size test.db 110 } [expr 32*1024] 111 112 do_test fallocate-2.5 { 113 execsql { 114 INSERT INTO t1 VALUES(2, randomblob(35*1024)); 115 PRAGMA wal_checkpoint; 116 INSERT INTO t1 VALUES(3, randomblob(128)); 117 DELETE FROM t1 WHERE a = 2; 118 VACUUM; 119 } 120 file size test.db 121 } [expr 64*1024] 122 123 do_test fallocate-2.6 { 124 sqlite3 db2 test.db 125 execsql { BEGIN ; SELECT count(a) FROM t1 } db2 126 execsql { 127 INSERT INTO t1 VALUES(4, randomblob(128)); 128 PRAGMA wal_checkpoint; 129 } 130 file size test.db 131 } [expr 64*1024] 132 133 do_test fallocate-2.7 { 134 execsql { SELECT count(b) FROM t1 } db2 135 } {1} 136 137 do_test fallocate-2.8 { 138 execsql { COMMIT } db2 139 execsql { PRAGMA wal_checkpoint } 140 file size test.db 141 } [expr 32*1024] 142 } 143 144 145 finish_test 146 147
