[sqlite] Remove obsolete reference version 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/test/corruptC.test

-# 2004 August 30
-#
-# 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 make sure SQLite does not crash or
-# segfault if it sees a corrupt database file.  It creates a base
-# data base file, then tests that single byte corruptions in 
-# increasingly larger quantities are handled gracefully.
-#
-# $Id: corruptC.test,v 1.14 2009/07/11 06:55:34 danielk1977 Exp $
-
-catch {forcedelete test.db test.db-journal test.bu}
-
-set testdir [file dirname $argv0]
-source $testdir/tester.tcl
-
-# Do not use a codec for tests in this file, as the database file is
-# manipulated directly using tcl scripts (using the [hexio_write] command).
-#
-do_not_use_codec
-
-# These tests deal with corrupt database files
-#
-database_may_be_corrupt
-
-# Construct a compact, dense database for testing.
-#
-do_test corruptC-1.1 {
-  execsql {
-    PRAGMA auto_vacuum = 0;
-    PRAGMA legacy_file_format=1;
-    BEGIN;
-    CREATE TABLE t1(x,y);
-    INSERT INTO t1 VALUES(1,1);
-    INSERT OR IGNORE INTO t1 SELECT x*2,y FROM t1;
-    INSERT OR IGNORE INTO t1 SELECT x*3,y FROM t1;
-    INSERT OR IGNORE INTO t1 SELECT x*5,y FROM t1;
-    INSERT OR IGNORE INTO t1 SELECT x*7,y FROM t1;
-    INSERT OR IGNORE INTO t1 SELECT x*11,y FROM t1;
-    INSERT OR IGNORE INTO t1 SELECT x*13,y FROM t1;
-    CREATE INDEX t1i1 ON t1(x);
-    CREATE TABLE t2 AS SELECT x,2 as y FROM t1 WHERE rowid%5!=0;
-    COMMIT;
-  }
-} {}
-
-ifcapable {integrityck} {
-  integrity_check corruptC-1.2
-}
-
-# Generate random integer
-#
-proc random {range} {
-  return [expr {round(rand()*$range)}]
-}
-
-# Setup for the tests.  Make a backup copy of the good database in test.bu.
-#
-db close
-forcecopy test.db test.bu
-sqlite3 db test.db
-set fsize [file size test.db]
-
-# Set a quasi-random random seed. 
-if {[info exists ::G(issoak)]} {
-  # If we are doing SOAK tests, we want a different
-  # random seed for each run.  Ideally we would like 
-  # to use [clock clicks] or something like that here.
-  set qseed [file mtime test.db]
-} else {
-  # If we are not doing soak tests,
-  # make it repeatable.
-  set qseed 0
-}
-expr srand($qseed)
-
-#
-# First test some specific corruption tests found from earlier runs
-# with specific seeds.
-#
-
-# test that a corrupt content offset size is handled (seed 5577)
-do_test corruptC-2.1 {
-  db close
-  forcecopy test.bu test.db
-
-  # insert corrupt byte(s)
-  hexio_write test.db 2053 [format %02x 0x04]
-
-  sqlite3 db test.db
-  catchsql {PRAGMA integrity_check}
-} {1 {database disk image is malformed}}
-
-# test that a corrupt content offset size is handled (seed 5649)
-do_test corruptC-2.2 {
-  db close
-  forcecopy test.bu test.db
-
-  # insert corrupt byte(s)
-  hexio_write test.db 27   [format %02x 0x08]
-  hexio_write test.db 233  [format %02x 0x6a]
-  hexio_write test.db 328  [format %02x 0x67]
-  hexio_write test.db 750  [format %02x 0x1f]
-  hexio_write test.db 1132 [format %02x 0x52]
-  hexio_write test.db 1133 [format %02x 0x84]
-  hexio_write test.db 1220 [format %02x 0x01]
-  hexio_write test.db 3688 [format %02x 0xc1]
-  hexio_write test.db 3714 [format %02x 0x58]
-  hexio_write test.db 3746 [format %02x 0x9a]
-
-  sqlite3 db test.db
-  catchsql {UPDATE t1 SET y=1}
-} {1 {database disk image is malformed}}
-
-# test that a corrupt free cell size is handled (seed 13329)
-do_test corruptC-2.3 {
-  db close
-  forcecopy test.bu test.db
-
-  # insert corrupt byte(s)
-  hexio_write test.db 1094 [format %02x 0x76]
-
-  sqlite3 db test.db
-  catchsql {UPDATE t1 SET y=1}
-} {1 {database disk image is malformed}}
-
-# test that a corrupt free cell size is handled (seed 169571)
-do_test corruptC-2.4 {
-  db close
-  forcecopy test.bu test.db
-
-  # insert corrupt byte(s)
-  hexio_write test.db 3119 [format %02x 0xdf]
-
-  sqlite3 db test.db
-  catchsql {UPDATE t2 SET y='abcdef-uvwxyz'}
-} {1 {database disk image is malformed}}
-
-# test that a corrupt free cell size is handled (seed 169571)
-do_test corruptC-2.5 {
-  db close
-  forcecopy test.bu test.db
-
-  # insert corrupt byte(s)
-  hexio_write test.db 3119 [format %02x 0xdf]
-  hexio_write test.db 4073 [format %02x 0xbf]
-
-  sqlite3 db test.db
-  catchsql {BEGIN; UPDATE t2 SET y='abcdef-uvwxyz'; ROLLBACK;}
-  catchsql {PRAGMA integrity_check}
-} {0 {{*** in database main ***
-Page 4: btreeInitPage() returns error code 11}}}
-
-# {0 {{*** in database main ***
-# Corruption detected in cell 710 on page 4
-# Multiple uses for byte 661 of page 4
-# Fragmented space is 249 byte reported as 21 on page 4}}}
-
-# test that a corrupt free cell size is handled (seed 169595)
-do_test corruptC-2.6 {
-  db close
-  forcecopy test.bu test.db
-
-  # insert corrupt byte(s)
-  hexio_write test.db 619 [format %02x 0xe2]
-  hexio_write test.db 3150 [format %02x 0xa8]
-
-  sqlite3 db test.db
-  catchsql {BEGIN; UPDATE t2 SET y='abcdef-uvwxyz'; ROLLBACK;}
-} {1 {database disk image is malformed}}
-
-# corruption (seed 178692)
-do_test corruptC-2.7 {
-  db close
-  forcecopy test.bu test.db
-
-  # insert corrupt byte(s)
-  hexio_write test.db 3074 [format %02x 0xa0]
-
-  sqlite3 db test.db
-  catchsql {BEGIN; UPDATE t2 SET y='abcdef-uvwxyz'; ROLLBACK;}
-} {1 {database disk image is malformed}}
-
-# corruption (seed 179069)
-do_test corruptC-2.8 {
-  db close
-  forcecopy test.bu test.db
-
-  # insert corrupt byte(s)
-  hexio_write test.db 1393 [format %02x 0x7d]
-  hexio_write test.db 84 [format %02x 0x19]
-  hexio_write test.db 3287 [format %02x 0x3b]
-  hexio_write test.db 2564 [format %02x 0xed]
-  hexio_write test.db 2139 [format %02x 0x55]
-
-  sqlite3 db test.db
-  catchsql {BEGIN; DELETE FROM t1 WHERE x>13; ROLLBACK;}
-} {1 {database disk image is malformed}}
-
-# corruption (seed 170434)
-#
-# UPDATE: Prior to 3.8.2, this used to return SQLITE_CORRUPT. It no longer
-# does. That is Ok, the point of these tests is to verify that no buffer
-# overruns or overreads can be caused by corrupt databases.
-do_test corruptC-2.9 {
-  db close
-  forcecopy test.bu test.db
-
-  # insert corrupt byte(s)
-  hexio_write test.db 2095 [format %02x 0xd6]
-
-  sqlite3 db test.db
-  catchsql {BEGIN; DELETE FROM t1 WHERE x>13; ROLLBACK;}
-} {0 {}}
-
-# corruption (seed 186504)
-do_test corruptC-2.10 {
-  db close
-  forcecopy test.bu test.db
-
-  # insert corrupt byte(s)
-  hexio_write test.db 3130 [format %02x 0x02]
-  
-  sqlite3 db test.db
-  catchsql {BEGIN; UPDATE t2 SET y='abcdef-uvwxyz'; ROLLBACK;}
-} {1 {database disk image is malformed}}
-
-# corruption (seed 1589)
-do_test corruptC-2.11 {
-  db close
-  forcecopy test.bu test.db
-
-  # insert corrupt byte(s)
-  hexio_write test.db 55 [format %02x 0xa7]
-  
-  sqlite3 db test.db
-  catchsql {BEGIN; CREATE TABLE t3 AS SELECT x,3 as y FROM t2 WHERE rowid%5!=0; ROLLBACK;}
-} {1 {database disk image is malformed}}
-
-# corruption (seed 14166)
-do_test corruptC-2.12 {
-  db close
-  forcecopy test.bu test.db
-
-  # insert corrupt byte(s)
-  hexio_write test.db 974 [format %02x 0x2e]
-  
-  sqlite3 db test.db
-  catchsql {SELECT count(*) FROM sqlite_master;}
-} {1 {malformed database schema (t1i1) - corrupt database}}
-
-# corruption (seed 218803)
-do_test corruptC-2.13 {
-  db close
-  forcecopy test.bu test.db
-
-  # insert corrupt byte(s)
-  hexio_write test.db 102 [format %02x 0x12]
-  
-  sqlite3 db test.db
-  catchsql {BEGIN; CREATE TABLE t3 AS SELECT x,3 as y FROM t2 WHERE rowid%5!=0; ROLLBACK;}
-} {1 {database disk image is malformed}}
-
-do_test corruptC-2.14 {
-  db close
-  forcecopy test.bu test.db
-
-  sqlite3 db test.db
-  set blob [string repeat abcdefghij 10000]
-  execsql { INSERT INTO t1 VALUES (1, $blob) }
-
-  sqlite3 db test.db
-  set filesize [file size test.db]
-  hexio_write test.db [expr $filesize-2048] 00000001
-  catchsql {DELETE FROM t1 WHERE rowid = (SELECT max(rowid) FROM t1)}
-} {1 {database disk image is malformed}}
-
-# At one point this particular corrupt database was causing a buffer
-# overread. Which caused a crash in a run of all.test once.
-#
-do_test corruptC-2.15 {
-  db close
-  forcecopy test.bu test.db
-  hexio_write test.db 986 b9
-  sqlite3 db test.db
-  catchsql {SELECT count(*) FROM sqlite_master;}
-} {1 {malformed database schema (t1i1) - no such table: main.t1}}
-
-#
-# Now test for a series of quasi-random seeds.
-# We loop over the entire file size and touch
-# each byte at least once.
-for {set tn 0} {$tn<$fsize} {incr tn 1} {
-
-  # setup for test
-  db close
-  forcecopy test.bu test.db
-  sqlite3 db test.db
-
-  # Seek to a random location in the file, and write a random single byte
-  # value.  Then do various operations on the file to make sure that
-  # the database engine can handle the corruption gracefully.
-  #
-  set last 0
-  for {set i 1} {$i<=512 && !$last} {incr i 1} {
-
-    db close
-    if {$i==1} {
-      # on the first corrupt value, use location $tn
-      # this ensures that we touch each location in the 
-      # file at least once.
-      set roffset $tn
-    } else { 
-      # insert random byte at random location
-      set roffset [random $fsize]
-    }
-    set rbyte [format %02x [random 255]]
-
-    # You can uncomment the following to have it trace
-    # exactly how it's corrupting the file.  This is 
-    # useful for generating the "seed specific" tests
-    # above.
-    # set rline "$roffset $rbyte"
-    # puts stdout $rline
-
-    hexio_write test.db $roffset $rbyte
-    sqlite3 db test.db
-
-    # do a few random operations to make sure that if 
-    # they error, they error gracefully instead of crashing.
-    do_test corruptC-3.$tn.($qseed).$i.1 {
-      catchsql {SELECT count(*) FROM sqlite_master}
-      set x {}
-    } {}
-    do_test corruptC-3.$tn.($qseed).$i.2 {
-      catchsql {SELECT count(*) FROM t1}
-      set x {}
-    } {}
-    do_test corruptC-3.$tn.($qseed).$i.3 {
-      catchsql {SELECT count(*) FROM t1 WHERE x>13}
-      set x {}
-    } {}
-    do_test corruptC-3.$tn.($qseed).$i.4 {
-      catchsql {SELECT count(*) FROM t2}
-      set x {}
-    } {}
-    do_test corruptC-3.$tn.($qseed).$i.5 {
-      catchsql {SELECT count(*) FROM t2 WHERE x<13}
-      set x {}
-    } {}
-    do_test corruptC-3.$tn.($qseed).$i.6 {
-      catchsql {BEGIN; UPDATE t1 SET y=1; ROLLBACK;}
-      set x {}
-    } {}
-    do_test corruptC-3.$tn.($qseed).$i.7 {
-      catchsql {BEGIN; UPDATE t2 SET y='abcdef-uvwxyz'; ROLLBACK;}
-      set x {}
-    } {}
-    do_test corruptC-3.$tn.($qseed).$i.8 {
-      catchsql {BEGIN; DELETE FROM t1 WHERE x>13; ROLLBACK;}
-      set x {}
-    } {}
-    do_test corruptC-3.$tn.($qseed).$i.9 {
-      catchsql {BEGIN; DELETE FROM t2 WHERE x<13; ROLLBACK;}
-      set x {}
-    } {}
-    do_test corruptC-3.$tn.($qseed).$i.10 {
-      catchsql {BEGIN; CREATE TABLE t3 AS SELECT x,3 as y FROM t2 WHERE rowid%5!=0; ROLLBACK;}
-      set x {}
-    } {}
-
-    # check the integrity of the database.
-    # once the corruption is detected, we can stop.
-    ifcapable {integrityck} {
-      set res [ catchsql {PRAGMA integrity_check} ]
-      set ans [lindex $res 1]
-      if { [ string compare $ans "ok" ] != 0 } {
-        set last -1
-      }
-    }
-    # if we are not capable of doing an integrity check,
-    # stop after corrupting 5 bytes.
-    ifcapable {!integrityck} {
-      if { $i > 5 } {
-        set last -1
-      }
-    }
-
-    # Check that no page references were leaked.
-    # TBD:  need to figure out why this doesn't work
-    # work with ROLLBACKs...
-    if {0} {
-      do_test corruptC-3.$tn.($qseed).$i.11 {
-        set bt [btree_from_db db]
-        db_enter db
-        array set stats [btree_pager_stats $bt]
-        db_leave db
-        set stats(ref)
-      } {0}
-    }
-  }
-  # end for i
-
-}
-# end for tn
-
-finish_test