| OLD | NEW |
| 1 # 2009 June 3 | 1 # 2009 June 3 |
| 2 # | 2 # |
| 3 # The author disclaims copyright to this source code. In place of | 3 # The author disclaims copyright to this source code. In place of |
| 4 # a legal notice, here is a blessing: | 4 # a legal notice, here is a blessing: |
| 5 # | 5 # |
| 6 # May you do good and not evil. | 6 # May you do good and not evil. |
| 7 # May you find forgiveness for yourself and forgive others. | 7 # May you find forgiveness for yourself and forgive others. |
| 8 # May you share freely, never taking more than you give. | 8 # May you share freely, never taking more than you give. |
| 9 # | 9 # |
| 10 #*********************************************************************** | 10 #*********************************************************************** |
| 11 # | 11 # |
| 12 # $Id: corruptD.test,v 1.2 2009/06/05 17:09:12 drh Exp $ | 12 # $Id: corruptD.test,v 1.2 2009/06/05 17:09:12 drh Exp $ |
| 13 | 13 |
| 14 set testdir [file dirname $argv0] | 14 set testdir [file dirname $argv0] |
| 15 source $testdir/tester.tcl | 15 source $testdir/tester.tcl |
| 16 | 16 |
| 17 # Do not use a codec for tests in this file, as the database file is | 17 # Do not use a codec for tests in this file, as the database file is |
| 18 # manipulated directly using tcl scripts (using the [hexio_write] command). | 18 # manipulated directly using tcl scripts (using the [hexio_write] command). |
| 19 # | 19 # |
| 20 do_not_use_codec | 20 do_not_use_codec |
| 21 | 21 |
| 22 # These tests deal with corrupt database files |
| 23 # |
| 24 database_may_be_corrupt |
| 25 |
| 22 #-------------------------------------------------------------------------- | 26 #-------------------------------------------------------------------------- |
| 23 # OVERVIEW | 27 # OVERVIEW |
| 24 # | 28 # |
| 25 # This test file attempts to verify that SQLite does not read past the | 29 # This test file attempts to verify that SQLite does not read past the |
| 26 # end of any in-memory buffers as a result of corrupted database page | 30 # end of any in-memory buffers as a result of corrupted database page |
| 27 # images. Usually this happens because a field within a database page | 31 # images. Usually this happens because a field within a database page |
| 28 # that contains an offset to some other structure within the same page | 32 # that contains an offset to some other structure within the same page |
| 29 # is set to too large a value. A database page contains the following | 33 # is set to too large a value. A database page contains the following |
| 30 # such fields: | 34 # such fields: |
| 31 # | 35 # |
| (...skipping 46 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 78 } | 82 } |
| 79 for {set ii 1} {$ii < 50} {incr ii} { | 83 for {set ii 1} {$ii < 50} {incr ii} { |
| 80 execsql { INSERT INTO t1 VALUES($ii, $ii * $ii) } | 84 execsql { INSERT INTO t1 VALUES($ii, $ii * $ii) } |
| 81 } | 85 } |
| 82 execsql { | 86 execsql { |
| 83 DELETE FROM t1 WHERE a = 10; | 87 DELETE FROM t1 WHERE a = 10; |
| 84 DELETE FROM t1 WHERE a = 20; | 88 DELETE FROM t1 WHERE a = 20; |
| 85 DELETE FROM t1 WHERE a = 30; | 89 DELETE FROM t1 WHERE a = 30; |
| 86 DELETE FROM t1 WHERE a = 40; | 90 DELETE FROM t1 WHERE a = 40; |
| 87 } | 91 } |
| 88 copy_file test.db test.bu | 92 forcecopy test.db test.bu |
| 89 } {} | 93 } {} |
| 90 | 94 |
| 91 proc incr_change_counter {} { | 95 proc incr_change_counter {} { |
| 92 hexio_write test.db 24 [ | 96 hexio_write test.db 24 [ |
| 93 hexio_render_int32 [expr [hexio_get_int [hexio_read test.db 24 4]] + 1] | 97 hexio_render_int32 [expr [hexio_get_int [hexio_read test.db 24 4]] + 1] |
| 94 ] | 98 ] |
| 95 } | 99 } |
| 96 | 100 |
| 97 proc restore_file {} { | 101 proc restore_file {} { |
| 98 db close | 102 db close |
| 99 copy_file test.bu test.db | 103 forcecopy test.bu test.db |
| 100 sqlite3 db test.db | 104 sqlite3 db test.db |
| 101 } | 105 } |
| 102 | 106 |
| 103 #------------------------------------------------------------------------- | 107 #------------------------------------------------------------------------- |
| 104 # The following tests, corruptD-1.1.*, focus on the page header field | 108 # The following tests, corruptD-1.1.*, focus on the page header field |
| 105 # containing the offset of the first free block in a page. | 109 # containing the offset of the first free block in a page. |
| 106 # | 110 # |
| 107 do_test corruptD-1.1.1 { | 111 do_test corruptD-1.1.1 { |
| 108 incr_change_counter | 112 incr_change_counter |
| 109 hexio_write test.db [expr 1024+1] FFFF | 113 hexio_write test.db [expr 1024+1] FFFF |
| 110 catchsql { SELECT * FROM t1 } | 114 catchsql { SELECT * FROM t1 ORDER BY rowid } |
| 111 } {1 {database disk image is malformed}} | 115 } {1 {database disk image is malformed}} |
| 112 do_test corruptD-1.1.2 { | 116 do_test corruptD-1.1.2 { |
| 113 incr_change_counter | 117 incr_change_counter |
| 114 hexio_write test.db [expr 1024+1] [hexio_render_int32 1021] | 118 hexio_write test.db [expr 1024+1] [hexio_render_int32 1021] |
| 115 catchsql { SELECT * FROM t1 } | 119 catchsql { SELECT * FROM t1 ORDER BY rowid } |
| 116 } {1 {database disk image is malformed}} | 120 } {1 {database disk image is malformed}} |
| 117 | 121 |
| 118 #------------------------------------------------------------------------- | 122 #------------------------------------------------------------------------- |
| 119 # The following tests, corruptD-1.2.*, focus on the offsets contained | 123 # The following tests, corruptD-1.2.*, focus on the offsets contained |
| 120 # in the first 2 byte of each free-block on the free-list. | 124 # in the first 2 byte of each free-block on the free-list. |
| 121 # | 125 # |
| 122 do_test corruptD-1.2.1 { | 126 do_test corruptD-1.2.1 { |
| 123 restore_file | 127 restore_file |
| 124 } {} | 128 } {} |
| 125 do_test corruptD-1.2.2 { | 129 do_test corruptD-1.2.2 { |
| 126 } {} | 130 } {} |
| 127 | 131 |
| 128 #------------------------------------------------------------------------- | 132 #------------------------------------------------------------------------- |
| 129 # The following tests, corruptD-1.4.*, ... | 133 # The following tests, corruptD-1.4.*, ... |
| 130 # | 134 # |
| 131 | 135 |
| 132 | 136 |
| 133 #------------------------------------------------------------------------- | 137 #------------------------------------------------------------------------- |
| 134 # The following tests, corruptD-1.5.*, focus on the offsets contained | 138 # The following tests, corruptD-1.5.*, focus on the offsets contained |
| 135 # in the cell offset array. | 139 # in the cell offset array. |
| 136 # | 140 # |
| 137 # defragmentPage | 141 # defragmentPage |
| 138 # | 142 # |
| 139 | 143 |
| 140 finish_test | 144 finish_test |
| OLD | NEW |