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| 1 # 2012 August 7 | |
| 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 # Tests for the secure_delete pragma. | |
| 13 # | |
| 14 | |
| 15 set testdir [file dirname $argv0] | |
| 16 source $testdir/tester.tcl | |
| 17 set ::testprefix securedel2 | |
| 18 | |
| 19 # Generate 1000 pseudo-random 64-bit blobs. | |
| 20 # | |
| 21 for {set i 1} {$i <= 1000} {incr i} { | |
| 22 set aBlob($i) [string range [db one {SELECT quote(randomblob(8))}] 2 end-1] | |
| 23 } | |
| 24 | |
| 25 proc detect_blob_prepare {zFile} { | |
| 26 set nByte [file size $zFile] | |
| 27 set ::detect_blob_data [hexio_read $zFile 0 $nByte] | |
| 28 } | |
| 29 | |
| 30 proc detect_blob {zFile iBlob} { | |
| 31 if {$zFile != ""} { detect_blob_prepare $zFile } | |
| 32 string match "*$::aBlob($iBlob)*" $::detect_blob_data | |
| 33 } | |
| 34 | |
| 35 do_test 1.1 { | |
| 36 execsql { PRAGMA secure_delete = 1 } | |
| 37 execsql { PRAGMA auto_vacuum = 0 } | |
| 38 execsql { CREATE TABLE t1(x, y) } | |
| 39 for {set i 1} {$i <= 1000} {incr i} { | |
| 40 set x "X'[string repeat $aBlob($i) 1]'" | |
| 41 set y "X'[string repeat $aBlob($i) 500]'" | |
| 42 execsql "INSERT INTO t1 VALUES($x, $y)" | |
| 43 } | |
| 44 } {} | |
| 45 | |
| 46 do_test 1.2 { detect_blob test.db 1 } {1} | |
| 47 | |
| 48 forcecopy test.db test.db.bak | |
| 49 do_execsql_test 1.3.1 { PRAGMA secure_delete = 0 } {0} | |
| 50 do_execsql_test 1.3.2 { DELETE FROM t1 WHERE rowid = 1 } | |
| 51 do_test 1.3.3 { detect_blob test.db 1 } {1} | |
| 52 | |
| 53 db close | |
| 54 forcecopy test.db.bak test.db | |
| 55 sqlite3 db test.db | |
| 56 do_execsql_test 1.4.1 { PRAGMA secure_delete = 1 } {1} | |
| 57 do_execsql_test 1.4.2 { DELETE FROM t1 WHERE rowid = 1 } | |
| 58 do_test 1.4.3 { detect_blob test.db 1 } {0} | |
| 59 | |
| 60 do_execsql_test 1.5.1 { DELETE FROM t1 WHERE rowid>850 } {} | |
| 61 do_test 1.5.2 { | |
| 62 set n 0 | |
| 63 detect_blob_prepare test.db | |
| 64 for {set i 851} {$i <= 1000} {incr i 5} { | |
| 65 incr n [detect_blob {} $i] | |
| 66 } | |
| 67 set n | |
| 68 } {0} | |
| 69 | |
| 70 db close | |
| 71 sqlite3 db test.db | |
| 72 do_test 1.6.1 { | |
| 73 execsql { | |
| 74 PRAGMA cache_size = 200; | |
| 75 PRAGMA secure_delete = 1; | |
| 76 CREATE TABLE t2(x); | |
| 77 SELECT * FROM t1; | |
| 78 } | |
| 79 for {set i 100} {$i < 5000} {incr i} { | |
| 80 execsql { INSERT INTO t2 VALUES(randomblob($i)) } | |
| 81 } | |
| 82 execsql { DELETE FROM t1 } | |
| 83 } {} | |
| 84 | |
| 85 do_test 1.6.2 { | |
| 86 set n 0 | |
| 87 detect_blob_prepare test.db | |
| 88 for {set i 2} {$i <= 850} {incr i 5} { | |
| 89 incr n [detect_blob {} $i] | |
| 90 } | |
| 91 set n | |
| 92 } {0} | |
| 93 | |
| 94 finish_test | |
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Chromium Code Reviews
Issue 2363173002:
[sqlite] Remove obsolete reference version 3.8.7.4. (Closed)
