# 2007 April 6 # # 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. # #*********************************************************************** # This file implements regression tests for SQLite library. # # This file implements tests to verify database file format. # # $Id: filefmt.test,v 1.3 2009/06/18 11:34:43 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl db close file delete -force test.db test.db-journal # Database begins with valid 16-byte header string. # do_test filefmt-1.1 { sqlite3 db test.db db eval {CREATE TABLE t1(x)} db close hexio_read test.db 0 16 } {53514C69746520666F726D6174203300} # If the 16-byte header is changed, the file will not open # do_test filefmt-1.2 { hexio_write test.db 0 54 set x [catch {sqlite3 db test.db} err] lappend x $err } {0 {}} do_test filefmt-1.3 { catchsql { SELECT count(*) FROM sqlite_master } } {1 {file is encrypted or is not a database}} do_test filefmt-1.4 { db close hexio_write test.db 0 53 sqlite3 db test.db catchsql { SELECT count(*) FROM sqlite_master } } {0 1} # The page-size is stored at offset 16 # ifcapable pager_pragmas { foreach pagesize {512 1024 2048 4096 8192 16384 32768} { if {[info exists SQLITE_MAX_PAGE_SIZE] && $pagesize>$SQLITE_MAX_PAGE_SIZE} continue do_test filefmt-1.5.$pagesize.1 { db close file delete -force test.db sqlite3 db test.db db eval "PRAGMA auto_vacuum=OFF" db eval "PRAGMA page_size=$pagesize" db eval {CREATE TABLE t1(x)} file size test.db } [expr $pagesize*2] do_test filefmt-1.5.$pagesize.2 { hexio_get_int [hexio_read test.db 16 2] } $pagesize } } # The page-size must be a power of 2 # do_test filefmt-1.6 { db close hexio_write test.db 16 [hexio_render_int16 1025] sqlite3 db test.db catchsql { SELECT count(*) FROM sqlite_master } } {1 {file is encrypted or is not a database}} # The page-size must be at least 512 bytes # do_test filefmt-1.7 { db close hexio_write test.db 16 [hexio_render_int16 256] sqlite3 db test.db catchsql { SELECT count(*) FROM sqlite_master } } {1 {file is encrypted or is not a database}} # Usable space per page (page-size minus unused space per page) # must be at least 480 bytes # ifcapable pager_pragmas { do_test filefmt-1.8 { db close file delete -force test.db sqlite3 db test.db db eval {PRAGMA page_size=512; CREATE TABLE t1(x)} db close hexio_write test.db 20 21 sqlite3 db test.db catchsql { SELECT count(*) FROM sqlite_master } } {1 {file is encrypted or is not a database}} } finish_test