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Overview
Comment:Add extra tests for the multiplexor VFS. No changes to code.
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SHA1: c7de6f683d0fec62bc138b4a53b5cccc80c736c3
User & Date: dan 2011-12-13 16:40:33
Context
2011-12-13
18:22
Change the SQLITE_EXTRA_INIT routine to take a single argument which is a pointer to a string. Call SQLITE_EXTRA_INIT with a NULL argument. Fixes to multiplexor to treat the VFS properly in corner cases. Fix the initialization of multiplex3.test. check-in: 8e65b913 user: drh tags: nx-devkit
16:40
Add extra tests for the multiplexor VFS. No changes to code. check-in: c7de6f68 user: dan tags: nx-devkit
15:25
Update the multiplex.test script to conform to that found in the "experimental" branch off of trunk. check-in: 2eb79efb user: drh tags: nx-devkit
Changes
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Added test/multiplex2.test. 



















































































































































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# 2010 October 29
#
# 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.
#
#***********************************************************************
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl
source $testdir/malloc_common.tcl
source $testdir/lock_common.tcl
db close

do_multiclient_test tn {
  foreach f [glob -nocomplain test.*] { forcedelete $f }

  code1 { catch { sqlite3_multiplex_initialize "" 0 } }
  code2 { catch { sqlite3_multiplex_initialize "" 0 } }

  code1 { db close }
  code2 { db2 close }

  code1 { sqlite3 db test.db -vfs multiplex }
  code2 { sqlite3 db2 test.db -vfs multiplex }

  code1 { sqlite3_multiplex_control db main chunk_size [expr 1024*1024] }
  code2 { sqlite3_multiplex_control db2 main chunk_size [expr 1024*1024] }

  sql1 {
    CREATE TABLE t1(a, b);
    INSERT INTO t1 VALUES(randomblob(10), randomblob(4000));          --    1
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --    2
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --    4
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --    8
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --   16
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --   32
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --   64
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --  128
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --  256
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --  512
    SELECT count(*) FROM t1;
  } 

  do_test multiplex-1.$tn.1 { sql1 { SELECT count(*) FROM t1 } } 512
  do_test multiplex-1.$tn.2 { sql2 { SELECT count(*) FROM t1 } } 512
  sql2 { DELETE FROM t1 ; VACUUM }
  do_test multiplex-1.$tn.3 { sql1 { SELECT count(*) FROM t1 } } 0

  sql1 {
    INSERT INTO t1 VALUES(randomblob(10), randomblob(4000));          --    1
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --    2
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --    4
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --    8
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --   16
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --   32
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --   64
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --  128
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --  256
    INSERT INTO t1 SELECT randomblob(10), randomblob(4000) FROM t1;   --  512
    SELECT count(*) FROM t1;
  }

  do_test multiplex-1.$tn.4 { sql2 { SELECT count(*) FROM t1 } } 512
}

catch { sqlite3_multiplex_shutdown }
finish_test

Changes to test/multiplex3.test. 

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  foreach f [glob -nocomplain sv_test.*] { forcedelete $f }
  foreach f [glob -nocomplain test.*]    { forcecopy $f "sv_$f" }
}
proc multiplex_restore_db {} {
  foreach f [glob -nocomplain test.*]    {forcedelete $f}
  foreach f [glob -nocomplain sv_test.*] {forcecopy $f [string range $f 3 end]} }


do_test 1.0 {
  multiplex_delete_db
  sqlite3 db file:test.db?8_3_names=1
  sqlite3_multiplex_control db main chunk_size [expr 256*1024]
  execsql {
    CREATE TABLE t1(a PRIMARY KEY, b);
    INSERT INTO t1 VALUES(randomblob(15), randomblob(2000));
    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    --   2
................................................................................
    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    -- 128
    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    -- 256
    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    -- 512
  }
  set ::cksum1 [execsql {SELECT md5sum(a, b) FROM t1 ORDER BY a}]
  db close
  multiplex_save_db
} {}



do_faultsim_test 1 -prep {
  multiplex_restore_db
  sqlite3 db file:test.db?8_3_names=1
  sqlite3_multiplex_control db main chunk_size [expr 256*1024]
} -body {

  execsql "UPDATE t1 SET a=randomblob(12), b=randomblob(1500) WHERE (rowid%32)=0"

} -test {
  faultsim_test_result {0 {}}
  if {$testrc!=0} {
    set cksum2 [execsql {SELECT md5sum(a, b) FROM t1 ORDER BY a}]
    if {$cksum2 != $::cksum1} { error "data mismatch" }
  }
}
































catch { db close }



sqlite3_multiplex_shutdown
finish_test









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  foreach f [glob -nocomplain sv_test.*] { forcedelete $f }
  foreach f [glob -nocomplain test.*]    { forcecopy $f "sv_$f" }
}
proc multiplex_restore_db {} {
  foreach f [glob -nocomplain test.*]    {forcedelete $f}
  foreach f [glob -nocomplain sv_test.*] {forcecopy $f [string range $f 3 end]} }

proc setup_and_save_db {} {

  multiplex_delete_db
  sqlite3 db file:test.db?8_3_names=1
  sqlite3_multiplex_control db main chunk_size [expr 256*1024]
  execsql {
    CREATE TABLE t1(a PRIMARY KEY, b);
    INSERT INTO t1 VALUES(randomblob(15), randomblob(2000));
    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    --   2
................................................................................
    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    -- 128
    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    -- 256
    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    -- 512
  }
  set ::cksum1 [execsql {SELECT md5sum(a, b) FROM t1 ORDER BY a}]
  db close
  multiplex_save_db

}

do_test 1.0 { setup_and_save_db } {}
do_faultsim_test 1 -prep {
  multiplex_restore_db
  sqlite3 db file:test.db?8_3_names=1
  sqlite3_multiplex_control db main chunk_size [expr 256*1024]
} -body {
  execsql {
    UPDATE t1 SET a=randomblob(12), b=randomblob(1500) WHERE (rowid%32)=0
  }
} -test {
  faultsim_test_result {0 {}}
  if {$testrc!=0} {
    set cksum2 [execsql {SELECT md5sum(a, b) FROM t1 ORDER BY a}]
    if {$cksum2 != $::cksum1} { error "data mismatch" }
  }
}

#-------------------------------------------------------------------------
# The following tests verify that hot-journal rollback works. As follows:
#
#   1. Create a large database.
#   2. Set the pager cache to be very small.
#   3. Open a transaction. 
#   4. Run the following 100 times:
#      a. Update a row.
#      b. Copy all files on disk to a new db location, including the journal.
#      c. Verify that the new db can be opened and that the content matches
#         the database created in step 1 (proving the journal was rolled
#         back).

do_test 2.0 { 
  setup_and_save_db
  multiplex_restore_db
  sqlite3 db file:test.db?8_3_names=1
  execsql { PRAGMA cache_size = 10 }
  execsql { BEGIN }
} {}

for {set iTest 1} {$iTest<=100} {incr iTest} {
  do_test 2.$iTest {
    execsql { 
      UPDATE t1 SET a=randomblob(12), b=randomblob(1400) WHERE rowid=5*$iTest
    }
    foreach f [glob -nocomplain test.*] {forcecopy $f "xx_$f"}
    sqlite3 db2 file:xx_test.db?8_3_names=1
    execsql {SELECT md5sum(a, b) FROM t1 ORDER BY a} db2
  } $::cksum1

  db2 close
}

catch { db close }
sqlite3_multiplex_shutdown
finish_test

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