[sqlite] Remove obsolete reference version 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/test/journal2.test

-# 2010 June 16
-#
-# 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. Specifically,
-# it tests SQLite when using a VFS that claims the SAFE_DELETE property.
-#
-
-set testdir [file dirname $argv0]
-source $testdir/tester.tcl
-source $testdir/lock_common.tcl
-source $testdir/malloc_common.tcl
-db close
-
-if {[permutation] == "inmemory_journal"} {
-  finish_test
-  return
-}
-
-set a_string_counter 1
-proc a_string {n} {
-  global a_string_counter
-  incr a_string_counter
-  string range [string repeat "${a_string_counter}." $n] 1 $n
-}
-
-# Create a [testvfs] and install it as the default VFS. Set the device
-# characteristics flags to "SAFE_DELETE".
-#
-testvfs tvfs -default 1
-tvfs devchar {undeletable_when_open powersafe_overwrite}
-
-# Set up a hook so that each time a journal file is opened, closed or
-# deleted, the method name ("xOpen", "xClose" or "xDelete") and the final
-# segment of the journal file-name (i.e. "test.db-journal") are appended to
-# global list variable $::oplog.
-#
-tvfs filter {xOpen xClose xDelete}
-tvfs script journal_op_catcher
-proc journal_op_catcher {method filename args} {
-
-  # If global variable ::tvfs_error_on_write is defined, then return an
-  # IO error to every attempt to modify the file-system. Otherwise, return
-  # SQLITE_OK.
-  #
-  if {[info exists ::tvfs_error_on_write]} {
-    if {[lsearch {xDelete xWrite xTruncate} $method]>=0} {
-      return SQLITE_IOERR 
-    }
-  }
-
-  # The rest of this command only deals with xOpen(), xClose() and xDelete()
-  # operations on journal files. If this invocation does not represent such
-  # an operation, return with no further ado.
-  #
-  set f [file tail $filename]
-  if {[string match *journal $f]==0} return
-  if {[lsearch {xOpen xDelete xClose} $method]<0} return
-
-  # Append a record of this operation to global list variable $::oplog.
-  #
-  lappend ::oplog $method $f
-
-  # If this is an attempt to delete a journal file for which there exists
-  # one ore more open handles, return an error. The code in test_vfs.c
-  # will not invoke the xDelete method of the "real" VFS in this case.
-  #
-  if {[info exists ::open_journals($f)]==0} { set ::open_journals($f) 0 }
-  switch -- $method {
-    xOpen   { incr ::open_journals($f) +1 }
-    xClose  { incr ::open_journals($f) -1 }
-    xDelete { if {$::open_journals($f)>0} { return SQLITE_IOERR } }
-  }
-
-  return ""
-}
-
-
-do_test journal2-1.1 {
-  set ::oplog [list]
-  sqlite3 db test.db
-  execsql { CREATE TABLE t1(a, b) }
-  set ::oplog
-} {xOpen test.db-journal xClose test.db-journal xDelete test.db-journal}
-do_test journal2-1.2 {
-  set ::oplog [list]
-  execsql { 
-    PRAGMA journal_mode = truncate;
-    INSERT INTO t1 VALUES(1, 2);
-  }
-  set ::oplog
-} {xOpen test.db-journal}
-do_test journal2-1.3 {
-  set ::oplog [list]
-  execsql { INSERT INTO t1 VALUES(3, 4) }
-  set ::oplog
-} {}
-do_test journal2-1.4 { execsql { SELECT * FROM t1 } } {1 2 3 4}
-
-# Add a second connection. This connection attempts to commit data in
-# journal_mode=DELETE mode. When it tries to delete the journal file,
-# the VFS layer returns an IO error.
-#
-do_test journal2-1.5 {
-  set ::oplog [list]
-  sqlite3 db2 test.db
-  execsql  { PRAGMA journal_mode = delete } db2
-  catchsql { INSERT INTO t1 VALUES(5, 6)  } db2
-} {1 {disk I/O error}}
-do_test journal2-1.6 { file exists test.db-journal } 1
-do_test journal2-1.7 { execsql { SELECT * FROM t1 } } {1 2 3 4}
-do_test journal2-1.8 {
-  execsql { PRAGMA journal_mode = truncate } db2
-  execsql { INSERT INTO t1 VALUES(5, 6)  } db2
-} {}
-do_test journal2-1.9 { execsql { SELECT * FROM t1 } } {1 2 3 4 5 6}
-
-# Grow the database until it is reasonably large.
-#
-do_test journal2-1.10 {
-  db2 close
-  db func a_string a_string
-  execsql {
-    CREATE TABLE t2(a UNIQUE, b UNIQUE);
-    INSERT INTO t2 VALUES(a_string(200), a_string(300));
-    INSERT INTO t2 SELECT a_string(200), a_string(300) FROM t2;  --  2
-    INSERT INTO t2 SELECT a_string(200), a_string(300) FROM t2;  --  4
-    INSERT INTO t2 SELECT a_string(200), a_string(300) FROM t2;  --  8
-    INSERT INTO t2 SELECT a_string(200), a_string(300) FROM t2;  -- 16
-    INSERT INTO t2 SELECT a_string(200), a_string(300) FROM t2;  -- 32
-    INSERT INTO t2 SELECT a_string(200), a_string(300) FROM t2;  -- 64
-  }
-  file size test.db-journal
-} {0}
-do_test journal2-1.11 {
-  set sz [expr [file size test.db] / 1024]
-  expr {$sz>120 && $sz<200}
-} 1
-
-# Using new connection [db2] (with journal_mode=DELETE), write a lot of
-# data to the database. So that many pages within the database file are
-# modified before the transaction is committed.
-#
-# Then, enable simulated IO errors in all calls to xDelete, xWrite
-# and xTruncate before committing the transaction and closing the 
-# database file. From the point of view of other file-system users, it
-# appears as if the process hosting [db2] unexpectedly exited.
-# 
-do_test journal2-1.12 {
-  sqlite3 db2 test.db
-  execsql {
-    PRAGMA cache_size = 10;
-    BEGIN;
-      INSERT INTO t2 SELECT randomblob(200), randomblob(300) FROM t2;  -- 128
-  } db2
-} {}
-do_test journal2-1.13 {
-  tvfs filter {xOpen xClose xDelete xWrite xTruncate}
-  set ::tvfs_error_on_write 1
-  catchsql { COMMIT } db2
-} {1 {disk I/O error}}
-db2 close
-unset ::tvfs_error_on_write
-forcecopy test.db testX.db
-
-do_test journal2-1.14 { file exists test.db-journal } 1
-do_test journal2-1.15 {
-  execsql {
-    SELECT count(*) FROM t2;
-    PRAGMA integrity_check;
-  }
-} {64 ok}
-
-# This block checks that in the test case above, connection [db2] really
-# did begin writing to the database file before it hit IO errors. If
-# this is true, then the copy of the database file made before [db]
-# rolled back the hot journal should fail the integrity-check.
-#
-do_test journal2-1.16 {
-  set sz [expr [file size testX.db] / 1024]
-  expr {$sz>240 && $sz<400}
-} 1
-do_test journal2-1.17 {
-  expr {[catchsql { PRAGMA integrity_check } db] == "0 ok"}
-} {1}
-do_test journal2-1.20 {
-  sqlite3 db2 testX.db
-  expr {[catchsql { PRAGMA integrity_check } db2] == "0 ok"}
-} {0}
-do_test journal2-1.21 {
-  db2 close
-} {}
-db close
-
-#-------------------------------------------------------------------------
-# Test that it is possible to switch from journal_mode=truncate to
-# journal_mode=WAL on a SAFE_DELETE file-system. SQLite should close and
-# delete the journal file when committing the transaction that switches
-# the system to WAL mode.
-#
-ifcapable wal {
-  do_test journal2-2.1 {
-    faultsim_delete_and_reopen
-    set ::oplog [list]
-    execsql { PRAGMA journal_mode = persist }
-    set ::oplog
-  } {}
-  do_test journal2-2.2 {
-    execsql { 
-      CREATE TABLE t1(x);
-      INSERT INTO t1 VALUES(3.14159);
-    }
-    set ::oplog
-  } {xOpen test.db-journal}
-  do_test journal2-2.3 {
-    expr {[file size test.db-journal] > 512}
-  } {1}
-  do_test journal2-2.4 {
-    set ::oplog [list]
-    execsql { PRAGMA journal_mode = WAL }
-    set ::oplog
-  } {xClose test.db-journal xDelete test.db-journal}
-  db close
-}
-
-tvfs delete
-finish_test