[sqlite] Remove obsolete reference version 3.8.7.4.

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

-# 2005 December 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.
-#
-#***********************************************************************
-#
-# $Id: shared.test,v 1.36 2009/03/16 13:19:36 danielk1977 Exp $
-
-set testdir [file dirname $argv0]
-source $testdir/tester.tcl
-db close
-
-# These tests cannot be run without the ATTACH command.
-#
-ifcapable !shared_cache||!attach {
-  finish_test
-  return
-}
-
-set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
-
-foreach av [list 0 1] {
-
-# Open the database connection and execute the auto-vacuum pragma
-forcedelete test.db
-sqlite3 db test.db
-
-ifcapable autovacuum {
-  do_test shared-[expr $av+1].1.0 {
-    execsql "pragma auto_vacuum=$::av"
-    execsql {pragma auto_vacuum}
-  } "$av"
-} else {
-  if {$av} {
-    db close
-    break
-  }
-}
-
-# if we're using proxy locks, we use 2 filedescriptors for a db
-# that is open but NOT yet locked, after a lock is taken we'll have 3, 
-# normally sqlite uses 1 (proxy locking adds the conch and the local lock)
-set using_proxy 0
-foreach {name value} [array get env SQLITE_FORCE_PROXY_LOCKING] {
-  set using_proxy $value
-}
-set extrafds_prelock 0
-set extrafds_postlock 0
-if {$using_proxy>0} {
-  set extrafds_prelock 1
-  set extrafds_postlock 2
-} 
-
-# $av is currently 0 if this loop iteration is to test with auto-vacuum turned
-# off, and 1 if it is turned on. Increment it so that (1 -> no auto-vacuum) 
-# and (2 -> auto-vacuum). The sole reason for this is so that it looks nicer
-# when we use this variable as part of test-case names.
-#
-incr av
-
-# Test organization:
-#
-# shared-1.*: Simple test to verify basic sanity of table level locking when
-#             two connections share a pager cache.
-# shared-2.*: Test that a read transaction can co-exist with a 
-#             write-transaction, including a simple test to ensure the 
-#             external locking protocol is still working.
-# shared-3.*: Simple test of read-uncommitted mode.
-# shared-4.*: Check that the schema is locked and unlocked correctly.
-# shared-5.*: Test that creating/dropping schema items works when databases
-#             are attached in different orders to different handles.
-# shared-6.*: Locking, UNION ALL queries and sub-queries.
-# shared-7.*: Autovacuum and shared-cache.
-# shared-8.*: Tests related to the text encoding of shared-cache databases.
-# shared-9.*: TEMP triggers and shared-cache databases.
-# shared-10.*: Tests of sqlite3_close().
-# shared-11.*: Test transaction locking.
-#
-
-do_test shared-$av.1.1 {
-  # Open a second database on the file test.db. It should use the same pager
-  # cache and schema as the original connection. Verify that only 1 file is 
-  # opened.
-  sqlite3 db2 test.db
-  set ::sqlite_open_file_count
-  expr $sqlite_open_file_count-$extrafds_postlock
-} {1}
-do_test shared-$av.1.2 {
-  # Add a table and a single row of data via the first connection. 
-  # Ensure that the second connection can see them.
-  execsql {
-    CREATE TABLE abc(a, b, c);
-    INSERT INTO abc VALUES(1, 2, 3);
-  } db
-  execsql {
-    SELECT * FROM abc;
-  } db2
-} {1 2 3}
-do_test shared-$av.1.3 {
-  # Have the first connection begin a transaction and obtain a read-lock
-  # on table abc. This should not prevent the second connection from 
-  # querying abc.
-  execsql {
-    BEGIN;
-    SELECT * FROM abc;
-  }
-  execsql {
-    SELECT * FROM abc;
-  } db2
-} {1 2 3}
-do_test shared-$av.1.4 {
-  # Try to insert a row into abc via connection 2. This should fail because
-  # of the read-lock connection 1 is holding on table abc (obtained in the
-  # previous test case).
-  catchsql {
-    INSERT INTO abc VALUES(4, 5, 6);
-  } db2
-} {1 {database table is locked: abc}}
-do_test shared-$av.1.5 {
-  # Using connection 2 (the one without the open transaction), try to create
-  # a new table. This should fail because of the open read transaction 
-  # held by connection 1.
-  catchsql {
-    CREATE TABLE def(d, e, f);
-  } db2
-} {1 {database table is locked: sqlite_master}}
-do_test shared-$av.1.6 {
-  # Upgrade connection 1's transaction to a write transaction. Create
-  # a new table - def - and insert a row into it. Because the connection 1
-  # transaction modifies the schema, it should not be possible for 
-  # connection 2 to access the database at all until the connection 1 
-  # has finished the transaction.
-  execsql {
-    CREATE TABLE def(d, e, f);
-    INSERT INTO def VALUES('IV', 'V', 'VI');
-  }
-} {}
-do_test shared-$av.1.7 {
-  # Read from the sqlite_master table with connection 1 (inside the 
-  # transaction). Then test that we can not do this with connection 2. This
-  # is because of the schema-modified lock established by connection 1 
-  # in the previous test case.
-  execsql {
-    SELECT * FROM sqlite_master;
-  }
-  catchsql {
-    SELECT * FROM sqlite_master;
-  } db2
-} {1 {database schema is locked: main}}
-do_test shared-$av.1.8 {
-  # Commit the connection 1 transaction.
-  execsql {
-    COMMIT;
-  }
-} {}
-
-do_test shared-$av.2.1 {
-  # Open connection db3 to the database. Use a different path to the same
-  # file so that db3 does *not* share the same pager cache as db and db2
-  # (there should be two open file handles).
-  if {$::tcl_platform(platform)=="unix"} {
-    sqlite3 db3 ./test.db
-  } else {
-    sqlite3 db3 TEST.DB
-  }
-  set ::sqlite_open_file_count
-  expr $sqlite_open_file_count-($extrafds_prelock+$extrafds_postlock)
-} {2}
-do_test shared-$av.2.2 {
-  # Start read transactions on db and db2 (the shared pager cache). Ensure
-  # db3 cannot write to the database.
-  execsql {
-    BEGIN;
-    SELECT * FROM abc;
-  }
-  execsql {
-    BEGIN;
-    SELECT * FROM abc;
-  } db2
-  catchsql {
-    INSERT INTO abc VALUES(1, 2, 3);
-  } db2
-} {1 {database table is locked: abc}}
-do_test shared-$av.2.3 {
-  # Turn db's transaction into a write-transaction. db3 should still be
-  # able to read from table def (but will not see the new row). Connection
-  # db2 should not be able to read def (because of the write-lock).
-
-# Todo: The failed "INSERT INTO abc ..." statement in the above test
-# has started a write-transaction on db2 (should this be so?). This 
-# would prevent connection db from starting a write-transaction. So roll the
-# db2 transaction back and replace it with a new read transaction.
-  execsql {
-    ROLLBACK;
-    BEGIN;
-    SELECT * FROM abc;
-  } db2
-
-  execsql {
-    INSERT INTO def VALUES('VII', 'VIII', 'IX');
-  }
-  concat [
-    catchsql { SELECT * FROM def; } db3
-  ] [
-    catchsql { SELECT * FROM def; } db2
-  ]
-} {0 {IV V VI} 1 {database table is locked: def}}
-do_test shared-$av.2.4 {
-  # Commit the open transaction on db. db2 still holds a read-transaction.
-  # This should prevent db3 from writing to the database, but not from 
-  # reading.
-  execsql {
-    COMMIT;
-  }
-  concat [
-    catchsql { SELECT * FROM def; } db3
-  ] [
-    catchsql { INSERT INTO def VALUES('X', 'XI', 'XII'); } db3
-  ]
-} {0 {IV V VI VII VIII IX} 1 {database is locked}}
-
-catchsql COMMIT db2
-
-do_test shared-$av.3.1.1 {
-  # This test case starts a linear scan of table 'seq' using a 
-  # read-uncommitted connection. In the middle of the scan, rows are added
-  # to the end of the seq table (ahead of the current cursor position).
-  # The uncommitted rows should be included in the results of the scan.
-  execsql "
-    CREATE TABLE seq(i PRIMARY KEY, x);
-    INSERT INTO seq VALUES(1, '[string repeat X 500]');
-    INSERT INTO seq VALUES(2, '[string repeat X 500]');
-  "
-  execsql {SELECT * FROM sqlite_master} db2
-  execsql {PRAGMA read_uncommitted = 1} db2
-
-  set ret [list]
-  db2 eval {SELECT i FROM seq ORDER BY i} {
-    if {$i < 4} {
-      set max [execsql {SELECT max(i) FROM seq}]
-      db eval {
-        INSERT INTO seq SELECT i + :max, x FROM seq;
-      }
-    }
-    lappend ret $i
-  }
-  set ret
-} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16}
-do_test shared-$av.3.1.2 {
-  # Another linear scan through table seq using a read-uncommitted connection.
-  # This time, delete each row as it is read. Should not affect the results of
-  # the scan, but the table should be empty after the scan is concluded 
-  # (test 3.1.3 verifies this).
-  set ret [list]
-  db2 eval {SELECT i FROM seq} {
-    db eval {DELETE FROM seq WHERE i = :i}
-    lappend ret $i
-  }
-  set ret
-} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16}
-do_test shared-$av.3.1.3 {
-  execsql {
-    SELECT * FROM seq;
-  }
-} {}
-
-catch {db close}
-catch {db2 close}
-catch {db3 close}
-
-#--------------------------------------------------------------------------
-# Tests shared-4.* test that the schema locking rules are applied 
-# correctly. i.e.:
-#
-# 1. All transactions require a read-lock on the schemas of databases they
-#    access.
-# 2. Transactions that modify a database schema require a write-lock on that
-#    schema.
-# 3. It is not possible to compile a statement while another handle has a 
-#    write-lock on the schema.
-#
-
-# Open two database handles db and db2. Each has a single attach database
-# (as well as main):
-#
-#     db.main   ->   ./test.db
-#     db.test2  ->   ./test2.db
-#     db2.main  ->   ./test2.db
-#     db2.test  ->   ./test.db
-#
-forcedelete test.db
-forcedelete test2.db
-forcedelete test2.db-journal
-sqlite3 db  test.db
-sqlite3 db2 test2.db
-do_test shared-$av.4.1.1 {
-  set sqlite_open_file_count
-  expr $sqlite_open_file_count-($extrafds_prelock*2)
-} {2}
-do_test shared-$av.4.1.2 {
-  execsql {ATTACH 'test2.db' AS test2}
-  set sqlite_open_file_count
-  expr $sqlite_open_file_count-($extrafds_postlock*2)
-} {2}
-do_test shared-$av.4.1.3 {
-  execsql {ATTACH 'test.db' AS test} db2
-  set sqlite_open_file_count
-  expr $sqlite_open_file_count-($extrafds_postlock*2)
-} {2}
-
-# Sanity check: Create a table in ./test.db via handle db, and test that handle
-# db2 can "see" the new table immediately. A handle using a seperate pager
-# cache would have to reload the database schema before this were possible.
-#
-do_test shared-$av.4.2.1 {
-  execsql {
-    CREATE TABLE abc(a, b, c);
-    CREATE TABLE def(d, e, f);
-    INSERT INTO abc VALUES('i', 'ii', 'iii');
-    INSERT INTO def VALUES('I', 'II', 'III');
-  }
-} {}
-do_test shared-$av.4.2.2 {
-  execsql {
-    SELECT * FROM test.abc;
-  } db2
-} {i ii iii}
-
-# Open a read-transaction and read from table abc via handle 2. Check that
-# handle 1 can read table abc. Check that handle 1 cannot modify table abc
-# or the database schema. Then check that handle 1 can modify table def.
-#
-do_test shared-$av.4.3.1 {
-  execsql {
-    BEGIN;
-    SELECT * FROM test.abc;
-  } db2
-} {i ii iii}
-do_test shared-$av.4.3.2 {
-  catchsql {
-    INSERT INTO abc VALUES('iv', 'v', 'vi');
-  }
-} {1 {database table is locked: abc}}
-do_test shared-$av.4.3.3 {
-  catchsql {
-    CREATE TABLE ghi(g, h, i);
-  }
-} {1 {database table is locked: sqlite_master}}
-do_test shared-$av.4.3.3 {
-  catchsql {
-    INSERT INTO def VALUES('IV', 'V', 'VI');
-  }
-} {0 {}}
-do_test shared-$av.4.3.4 {
-  # Cleanup: commit the transaction opened by db2.
-  execsql {
-    COMMIT
-  } db2
-} {}
-
-# Open a write-transaction using handle 1 and modify the database schema.
-# Then try to execute a compiled statement to read from the same 
-# database via handle 2 (fails to get the lock on sqlite_master). Also
-# try to compile a read of the same database using handle 2 (also fails).
-# Finally, compile a read of the other database using handle 2. This
-# should also fail.
-#
-ifcapable compound {
-  do_test shared-$av.4.4.1.2 {
-    # Sanity check 1: Check that the schema is what we think it is when viewed
-    # via handle 1.
-    execsql {
-      CREATE TABLE test2.ghi(g, h, i);
-      SELECT 'test.db:'||name FROM sqlite_master 
-      UNION ALL
-      SELECT 'test2.db:'||name FROM test2.sqlite_master;
-    }
-  } {test.db:abc test.db:def test2.db:ghi}
-  do_test shared-$av.4.4.1.2 {
-    # Sanity check 2: Check that the schema is what we think it is when viewed
-    # via handle 2.
-    execsql {
-      SELECT 'test2.db:'||name FROM sqlite_master 
-      UNION ALL
-      SELECT 'test.db:'||name FROM test.sqlite_master;
-    } db2
-  } {test2.db:ghi test.db:abc test.db:def}
-}
-
-do_test shared-$av.4.4.2 {
-  set ::DB2 [sqlite3_connection_pointer db2]
-  set sql {SELECT * FROM abc}
-  set ::STMT1 [sqlite3_prepare $::DB2 $sql -1 DUMMY]
-  execsql {
-    BEGIN;
-    CREATE TABLE jkl(j, k, l);
-  }
-  sqlite3_step $::STMT1
-} {SQLITE_ERROR}
-do_test shared-$av.4.4.3 {
-  sqlite3_finalize $::STMT1
-} {SQLITE_LOCKED}
-do_test shared-$av.4.4.4 {
-  set rc [catch {
-    set ::STMT1 [sqlite3_prepare $::DB2 $sql -1 DUMMY]
-  } msg]
-  list $rc $msg
-} {1 {(6) database schema is locked: test}}
-do_test shared-$av.4.4.5 {
-  set rc [catch {
-    set ::STMT1 [sqlite3_prepare $::DB2 "SELECT * FROM ghi" -1 DUMMY]
-  } msg]
-  list $rc $msg
-} {1 {(6) database schema is locked: test}}
-
-
-catch {db2 close}
-catch {db close}
-
-#--------------------------------------------------------------------------
-# Tests shared-5.* 
-#
-foreach db [list test.db test1.db test2.db test3.db] {
-  forcedelete $db ${db}-journal
-}
-do_test shared-$av.5.1.1 {
-  sqlite3 db1 test.db
-  sqlite3 db2 test.db
-  execsql {
-    ATTACH 'test1.db' AS test1;
-    ATTACH 'test2.db' AS test2;
-    ATTACH 'test3.db' AS test3;
-  } db1
-  execsql {
-    ATTACH 'test3.db' AS test3;
-    ATTACH 'test2.db' AS test2;
-    ATTACH 'test1.db' AS test1;
-  } db2
-} {}
-do_test shared-$av.5.1.2 {
-  execsql {
-    CREATE TABLE test1.t1(a, b);
-    CREATE INDEX test1.i1 ON t1(a, b);
-  } db1
-} {}
-ifcapable view {
-  do_test shared-$av.5.1.3 {
-    execsql {
-      CREATE VIEW test1.v1 AS SELECT * FROM t1;
-    } db1
-  } {}
-}
-ifcapable trigger {
-  do_test shared-$av.5.1.4 {
-    execsql {
-      CREATE TRIGGER test1.trig1 AFTER INSERT ON t1 BEGIN
-        INSERT INTO t1 VALUES(new.a, new.b);
-      END;
-    } db1
-  } {}
-}
-do_test shared-$av.5.1.5 {
-  execsql {
-    DROP INDEX i1;
-  } db2
-} {}
-ifcapable view {
-  do_test shared-$av.5.1.6 {
-    execsql {
-      DROP VIEW v1;
-    } db2
-  } {}
-}
-ifcapable trigger {
-  do_test shared-$av.5.1.7 {
-    execsql {
-      DROP TRIGGER trig1;
-    } db2
-  } {}
-}
-do_test shared-$av.5.1.8 {
-  execsql {
-    DROP TABLE t1;
-  } db2
-} {}
-ifcapable compound {
-  do_test shared-$av.5.1.9 {
-    execsql {
-      SELECT * FROM sqlite_master UNION ALL SELECT * FROM test1.sqlite_master
-    } db1
-  } {}
-}
-
-#--------------------------------------------------------------------------
-# Tests shared-6.* test that a query obtains all the read-locks it needs
-# before starting execution of the query. This means that there is no chance
-# some rows of data will be returned before a lock fails and SQLITE_LOCK
-# is returned.
-#
-do_test shared-$av.6.1.1 {
-  execsql {
-    CREATE TABLE t1(a, b);
-    CREATE TABLE t2(a, b);
-    INSERT INTO t1 VALUES(1, 2);
-    INSERT INTO t2 VALUES(3, 4);
-  } db1
-} {}
-ifcapable compound {
-  do_test shared-$av.6.1.2 {
-    execsql {
-      SELECT * FROM t1 UNION ALL SELECT * FROM t2;
-    } db2
-  } {1 2 3 4}
-}
-do_test shared-$av.6.1.3 {
-  # Establish a write lock on table t2 via connection db2. Then make a 
-  # UNION all query using connection db1 that first accesses t1, followed 
-  # by t2. If the locks are grabbed at the start of the statement (as 
-  # they should be), no rows are returned. If (as was previously the case)
-  # they are grabbed as the tables are accessed, the t1 rows will be 
-  # returned before the query fails.
-  #
-  execsql {
-    BEGIN;
-    INSERT INTO t2 VALUES(5, 6);
-  } db2
-  set ret [list]
-  catch {
-    db1 eval {SELECT * FROM t1 UNION ALL SELECT * FROM t2} {
-      lappend ret $a $b
-    }
-  }
-  set ret
-} {}
-do_test shared-$av.6.1.4 {
-  execsql {
-    COMMIT;
-    BEGIN;
-    INSERT INTO t1 VALUES(7, 8);
-  } db2
-  set ret [list]
-  catch {
-    db1 eval {
-      SELECT (CASE WHEN a>4 THEN (SELECT a FROM t1) ELSE 0 END) AS d FROM t2;
-    } {
-      lappend ret $d
-    }
-  }
-  set ret
-} {}
-
-catch {db1 close}
-catch {db2 close}
-foreach f [list test.db test2.db] {
-  forcedelete $f ${f}-journal
-}
-
-#--------------------------------------------------------------------------
-# Tests shared-7.* test auto-vacuum does not invalidate cursors from
-# other shared-cache users when it reorganizes the database on 
-# COMMIT.
-#
-do_test shared-$av.7.1 {
-  # This test case sets up a test database in auto-vacuum mode consisting 
-  # of two tables, t1 and t2. Both have a single index. Table t1 is 
-  # populated first (so consists of pages toward the start of the db file), 
-  # t2 second (pages toward the end of the file). 
-  sqlite3 db test.db
-  sqlite3 db2 test.db
-  execsql {
-    BEGIN;
-    CREATE TABLE t1(a PRIMARY KEY, b);
-    CREATE TABLE t2(a PRIMARY KEY, b);
-  }
-  set ::contents {}
-  for {set i 0} {$i < 100} {incr i} {
-    set a [string repeat "$i " 20]
-    set b [string repeat "$i " 20]
-    db eval {
-      INSERT INTO t1 VALUES(:a, :b);
-    }
-    lappend ::contents [list [expr $i+1] $a $b]
-  }
-  execsql {
-    INSERT INTO t2 SELECT * FROM t1;
-    COMMIT;
-  }
-} {}
-do_test shared-$av.7.2 {
-  # This test case deletes the contents of table t1 (the one at the start of
-  # the file) while many cursors are open on table t2 and its index. All of
-  # the non-root pages will be moved from the end to the start of the file
-  # when the DELETE is committed - this test verifies that moving the pages
-  # does not disturb the open cursors.
-  #
-
-  proc lockrow {db tbl oids body} {
-    set ret [list]
-    db eval "SELECT oid AS i, a, b FROM $tbl ORDER BY a" {
-      if {$i==[lindex $oids 0]} {
-        set noids [lrange $oids 1 end]
-        if {[llength $noids]==0} {
-          set subret [eval $body]
-        } else {
-          set subret [lockrow $db $tbl $noids $body]
-        }
-      }
-      lappend ret [list $i $a $b]
-    }
-    return [linsert $subret 0 $ret]
-  }
-  proc locktblrows {db tbl body} {
-    set oids [db eval "SELECT oid FROM $tbl"]
-    lockrow $db $tbl $oids $body
-  }
-
-  set scans [locktblrows db t2 {
-    execsql {
-      DELETE FROM t1;
-    } db2
-  }]
-  set error 0
-
-  # Test that each SELECT query returned the expected contents of t2.
-  foreach s $scans {
-    if {[lsort -integer -index 0 $s]!=$::contents} {
-      set error 1
-    }
-  }
-  set error
-} {0}
-
-catch {db close}
-catch {db2 close}
-unset -nocomplain contents
-
-#--------------------------------------------------------------------------
-# The following tests try to trick the shared-cache code into assuming
-# the wrong encoding for a database.
-#
-forcedelete test.db test.db-journal
-ifcapable utf16 {
-  do_test shared-$av.8.1.1 {
-    sqlite3 db test.db
-    execsql {
-      PRAGMA encoding = 'UTF-16';
-      SELECT * FROM sqlite_master;
-    }
-  } {}
-  do_test shared-$av.8.1.2 {
-    string range [execsql {PRAGMA encoding;}] 0 end-2
-  } {UTF-16}
-
-  do_test shared-$av.8.1.3 {
-    sqlite3 db2 test.db
-    execsql {
-      PRAGMA encoding = 'UTF-8';
-      CREATE TABLE abc(a, b, c);
-    } db2
-  } {}
-  do_test shared-$av.8.1.4 {
-    execsql {
-      SELECT * FROM sqlite_master;
-    }
-  } "table abc abc [expr $AUTOVACUUM?3:2] {CREATE TABLE abc(a, b, c)}"
-  do_test shared-$av.8.1.5 {
-    db2 close
-    execsql {
-      PRAGMA encoding;
-    }
-  } {UTF-8}
-
-  forcedelete test2.db test2.db-journal
-  do_test shared-$av.8.2.1 {
-    execsql {
-      ATTACH 'test2.db' AS aux;
-      SELECT * FROM aux.sqlite_master;
-    }
-  } {}
-  do_test shared-$av.8.2.2 {
-    sqlite3 db2 test2.db
-    execsql {
-      PRAGMA encoding = 'UTF-16';
-      CREATE TABLE def(d, e, f);
-    } db2
-    string range [execsql {PRAGMA encoding;} db2] 0 end-2
-  } {UTF-16}
-
-  catch {db close}
-  catch {db2 close}
-  forcedelete test.db test2.db
-
-  do_test shared-$av.8.3.2 {
-    sqlite3 db test.db
-    execsql { CREATE TABLE def(d, e, f) }
-    execsql { PRAGMA encoding }
-  } {UTF-8}
-  do_test shared-$av.8.3.3 {
-    set zDb16 "[encoding convertto unicode test.db]\x00\x00"
-    set db16 [sqlite3_open16 $zDb16 {}]
-
-    set stmt [sqlite3_prepare $db16 "SELECT sql FROM sqlite_master" -1 DUMMY]
-    sqlite3_step $stmt
-    set sql [sqlite3_column_text $stmt 0]
-    sqlite3_finalize $stmt
-    set sql
-  } {CREATE TABLE def(d, e, f)}
-  do_test shared-$av.8.3.4 {
-    set stmt [sqlite3_prepare $db16 "PRAGMA encoding" -1 DUMMY]
-    sqlite3_step $stmt
-    set enc [sqlite3_column_text $stmt 0]
-    sqlite3_finalize $stmt
-    set enc
-  } {UTF-8}
-
-  sqlite3_close $db16
-
-# Bug #2547 is causing this to fail.
-if 0 {
-  do_test shared-$av.8.2.3 {
-    catchsql {
-      SELECT * FROM aux.sqlite_master;
-    }
-  } {1 {attached databases must use the same text encoding as main database}}
-}
-}
-
-catch {db close}
-catch {db2 close}
-forcedelete test.db test2.db
-
-#---------------------------------------------------------------------------
-# The following tests - shared-9.* - test interactions between TEMP triggers
-# and shared-schemas.
-#
-ifcapable trigger&&tempdb {
-
-do_test shared-$av.9.1 {
-  sqlite3 db test.db
-  sqlite3 db2 test.db
-  execsql {
-    CREATE TABLE abc(a, b, c);
-    CREATE TABLE abc_mirror(a, b, c);
-    CREATE TEMP TRIGGER BEFORE INSERT ON abc BEGIN 
-      INSERT INTO abc_mirror(a, b, c) VALUES(new.a, new.b, new.c);
-    END;
-    INSERT INTO abc VALUES(1, 2, 3);
-    SELECT * FROM abc_mirror;
-  }
-} {1 2 3}
-do_test shared-$av.9.2 {
-  execsql {
-    INSERT INTO abc VALUES(4, 5, 6);
-    SELECT * FROM abc_mirror;
-  } db2
-} {1 2 3}
-do_test shared-$av.9.3 {
-  db close
-  db2 close
-} {}
-
-} ; # End shared-9.*
-
-#---------------------------------------------------------------------------
-# The following tests - shared-10.* - test that the library behaves 
-# correctly when a connection to a shared-cache is closed. 
-#
-do_test shared-$av.10.1 {
-  # Create a small sample database with two connections to it (db and db2).
-  forcedelete test.db
-  sqlite3 db  test.db
-  sqlite3 db2 test.db
-  execsql {
-    CREATE TABLE ab(a PRIMARY KEY, b);
-    CREATE TABLE de(d PRIMARY KEY, e);
-    INSERT INTO ab VALUES('Chiang Mai', 100000);
-    INSERT INTO ab VALUES('Bangkok', 8000000);
-    INSERT INTO de VALUES('Ubon', 120000);
-    INSERT INTO de VALUES('Khon Kaen', 200000);
-  }
-} {}
-do_test shared-$av.10.2 {
-  # Open a read-transaction with the first connection, a write-transaction
-  # with the second.
-  execsql {
-    BEGIN;
-    SELECT * FROM ab;
-  }
-  execsql {
-    BEGIN;
-    INSERT INTO de VALUES('Pataya', 30000);
-  } db2
-} {}
-do_test shared-$av.10.3 {
-  # An external connection should be able to read the database, but not
-  # prepare a write operation.
-  if {$::tcl_platform(platform)=="unix"} {
-    sqlite3 db3 ./test.db
-  } else {
-    sqlite3 db3 TEST.DB
-  }
-  execsql {
-    SELECT * FROM ab;
-  } db3
-  catchsql {
-    BEGIN;
-    INSERT INTO de VALUES('Pataya', 30000);
-  } db3
-} {1 {database is locked}}
-do_test shared-$av.10.4 {
-  # Close the connection with the write-transaction open
-  db2 close
-} {}
-do_test shared-$av.10.5 {
-  # Test that the db2 transaction has been automatically rolled back.
-  # If it has not the ('Pataya', 30000) entry will still be in the table.
-  execsql {
-    SELECT * FROM de;
-  }
-} {Ubon 120000 {Khon Kaen} 200000}
-do_test shared-$av.10.5 {
-  # Closing db2 should have dropped the shared-cache back to a read-lock.
-  # So db3 should be able to prepare a write...
-  catchsql {INSERT INTO de VALUES('Pataya', 30000);} db3
-} {0 {}}
-do_test shared-$av.10.6 {
-  # ... but not commit it.
-  catchsql {COMMIT} db3
-} {1 {database is locked}}
-do_test shared-$av.10.7 {
-  # Commit the (read-only) db transaction. Check via db3 to make sure the 
-  # contents of table "de" are still as they should be.
-  execsql {
-    COMMIT;
-  }
-  execsql {
-    SELECT * FROM de;
-  } db3
-} {Ubon 120000 {Khon Kaen} 200000 Pataya 30000}
-do_test shared-$av.10.9 {
-  # Commit the external transaction.
-  catchsql {COMMIT} db3
-} {0 {}}
-integrity_check shared-$av.10.10
-do_test shared-$av.10.11 {
-  db close
-  db3 close
-} {}
-
-do_test shared-$av.11.1 {
-  forcedelete test.db
-  sqlite3 db  test.db
-  sqlite3 db2 test.db
-  execsql {
-    CREATE TABLE abc(a, b, c);
-    CREATE TABLE abc2(a, b, c);
-    BEGIN;
-    INSERT INTO abc VALUES(1, 2, 3);
-  }
-} {}
-do_test shared-$av.11.2 {
-  catchsql {BEGIN;} db2
-  catchsql {SELECT * FROM abc;} db2
-} {1 {database table is locked: abc}}
-do_test shared-$av.11.3 {
-  catchsql {BEGIN} db2
-} {1 {cannot start a transaction within a transaction}}
-do_test shared-$av.11.4 {
-  catchsql {SELECT * FROM abc2;} db2
-} {0 {}}
-do_test shared-$av.11.5 {
-  catchsql {INSERT INTO abc2 VALUES(1, 2, 3);} db2
-} {1 {database table is locked}}
-do_test shared-$av.11.6 {
-  catchsql {SELECT * FROM abc2}
-} {0 {}}
-do_test shared-$av.11.6 {
-  execsql {
-    ROLLBACK;
-    PRAGMA read_uncommitted = 1;
-  } db2
-} {}
-do_test shared-$av.11.7 {
-  execsql {
-    INSERT INTO abc2 VALUES(4, 5, 6);
-    INSERT INTO abc2 VALUES(7, 8, 9);
-  }
-} {}
-do_test shared-$av.11.8 {
-  set res [list]
-  db2 eval {
-    SELECT abc.a as I, abc2.a as II FROM abc, abc2;
-  } {
-    execsql {
-      DELETE FROM abc WHERE 1;
-    }
-    lappend res $I $II
-  }
-  set res
-} {1 4 {} 7}
-if {[llength [info command sqlite3_shared_cache_report]]==1} {
-  ifcapable curdir {
-    do_test shared-$av.11.9 {
-      string tolower [sqlite3_shared_cache_report]
-    } [string tolower [list [file nativename [file normalize test.db]] 2]]
-  }
-}
-
-do_test shared-$av.11.11 {
-  db close
-  db2 close
-} {}
-
-# This tests that if it is impossible to free any pages, SQLite will
-# exceed the limit set by PRAGMA cache_size.
-forcedelete test.db test.db-journal
-sqlite3 db test.db 
-ifcapable pager_pragmas {
-  do_test shared-$av.12.1 {
-    execsql {
-      PRAGMA cache_size = 10;
-      PRAGMA cache_size;
-    }
-  } {10}
-}
-do_test shared-$av.12.2 {
-  set ::db_handles [list]
-  for {set i 1} {$i < 15} {incr i} {
-    lappend ::db_handles db$i
-    sqlite3 db$i test.db 
-    execsql "CREATE TABLE db${i}(a, b, c)" db$i 
-    execsql "INSERT INTO db${i} VALUES(1, 2, 3)"
-  }
-} {}
-proc nested_select {handles} {
-  [lindex $handles 0] eval "SELECT * FROM [lindex $handles 0]" {
-    lappend ::res $a $b $c
-    if {[llength $handles]>1} {
-      nested_select [lrange $handles 1 end]
-    }
-  }
-}
-do_test shared-$av.12.3 {
-  set ::res [list]
-  nested_select $::db_handles
-  set ::res
-} [string range [string repeat "1 2 3 " [llength $::db_handles]] 0 end-1]
-
-do_test shared-$av.12.X {
-  db close
-  foreach h $::db_handles { 
-    $h close
-  }
-} {}
-
-# Internally, locks are acquired on shared B-Tree structures in the order
-# that the structures appear in the virtual memory address space. This
-# test case attempts to cause the order of the structures in memory 
-# to be different from the order in which they are attached to a given
-# database handle. This covers an extra line or two.
-#
-do_test shared-$av.13.1 {
-  forcedelete test2.db test3.db test4.db test5.db
-  sqlite3 db :memory:
-  execsql {
-    ATTACH 'test2.db' AS aux2;
-    ATTACH 'test3.db' AS aux3;
-    ATTACH 'test4.db' AS aux4;
-    ATTACH 'test5.db' AS aux5;
-    DETACH aux2;
-    DETACH aux3;
-    DETACH aux4;
-    ATTACH 'test2.db' AS aux2;
-    ATTACH 'test3.db' AS aux3;
-    ATTACH 'test4.db' AS aux4;
-  }
-} {}
-do_test shared-$av.13.2 {
-  execsql {
-    CREATE TABLE t1(a, b, c);
-    CREATE TABLE aux2.t2(a, b, c);
-    CREATE TABLE aux3.t3(a, b, c);
-    CREATE TABLE aux4.t4(a, b, c);
-    CREATE TABLE aux5.t5(a, b, c);
-    SELECT count(*) FROM 
-      aux2.sqlite_master, 
-      aux3.sqlite_master, 
-      aux4.sqlite_master, 
-      aux5.sqlite_master
-  }
-} {1}
-do_test shared-$av.13.3 {
-  db close
-} {}
-
-# Test that nothing horrible happens if a connection to a shared B-Tree 
-# structure is closed while some other connection has an open cursor.
-#
-do_test shared-$av.14.1 {
-  sqlite3 db test.db
-  sqlite3 db2 test.db
-  execsql {SELECT name FROM sqlite_master}
-} {db1 db2 db3 db4 db5 db6 db7 db8 db9 db10 db11 db12 db13 db14}
-do_test shared-$av.14.2 {
-  set res [list]
-  db eval {SELECT name FROM sqlite_master} {
-    if {$name eq "db7"} {
-      db2 close
-    }
-    lappend res $name
-  }
-  set res
-} {db1 db2 db3 db4 db5 db6 db7 db8 db9 db10 db11 db12 db13 db14}
-do_test shared-$av.14.3 {
-  db close
-} {}
-
-# Populate a database schema using connection [db]. Then drop it using
-# [db2]. This is to try to find any points where shared-schema elements
-# are allocated using the lookaside buffer of [db].
-# 
-# Mutexes are enabled for this test as that activates a couple of useful
-# assert() statements in the C code.
-#
-do_test shared-$av-15.1 {
-  forcedelete test.db
-  sqlite3 db test.db -fullmutex 1
-  sqlite3 db2 test.db -fullmutex 1
-  execsql {
-    CREATE TABLE t1(a, b, c);
-    CREATE INDEX i1 ON t1(a, b);
-    CREATE VIEW v1 AS SELECT * FROM t1; 
-    CREATE VIEW v2 AS SELECT * FROM t1, v1 
-                      WHERE t1.c=v1.c GROUP BY t1.a ORDER BY v1.b; 
-    CREATE TRIGGER tr1 AFTER INSERT ON t1 
-      WHEN new.a!=1
-    BEGIN
-      DELETE FROM t1 WHERE a=5;
-      INSERT INTO t1 VALUES(1, 2, 3);
-      UPDATE t1 SET c=c+1;
-    END;
-
-    INSERT INTO t1 VALUES(5, 6, 7);
-    INSERT INTO t1 VALUES(8, 9, 10);
-    INSERT INTO t1 VALUES(11, 12, 13);
-    ANALYZE;
-    SELECT * FROM t1;
-  }
-} {1 2 6 8 9 12 1 2 5 11 12 14 1 2 4}
-do_test shared-$av-15.2 {
-  execsql { DROP TABLE t1 } db2
-} {}
-db close
-db2 close
-
-# Shared cache on a :memory: database.  This only works for URI filenames.
-#
-do_test shared-$av-16.1 {
-  sqlite3 db1 file::memory: -uri 1
-  sqlite3 db2 file::memory: -uri 1
-  db1 eval {
-    CREATE TABLE t1(x); INSERT INTO t1 VALUES(1),(2),(3);
-  }
-  db2 eval {
-    SELECT x FROM t1 ORDER BY x;
-  }
-} {1 2 3}
-do_test shared-$av-16.2 {
-  db2 eval {
-    INSERT INTO t1 VALUES(99);
-    DELETE FROM t1 WHERE x=2;
-  }
-  db1 eval {
-    SELECT x FROM t1 ORDER BY x;
-  }
-} {1 3 99}
-
-# Verify that there is no cache sharing ordinary (non-URI) filenames are
-# used.
-#
-do_test shared-$av-16.3 {
-  db1 close
-  db2 close
-  sqlite3 db1 :memory:
-  sqlite3 db2 :memory:
-  db1 eval {
-    CREATE TABLE t1(x); INSERT INTO t1 VALUES(4),(5),(6);
-  }
-  catchsql {
-    SELECT * FROM t1;
-  } db2
-} {1 {no such table: t1}}
-
-# Shared cache on named memory databases.
-#
-do_test shared-$av-16.4 {
-  db1 close
-  db2 close
-  forcedelete test.db test.db-wal test.db-journal
-  sqlite3 db1 file:test.db?mode=memory -uri 1
-  sqlite3 db2 file:test.db?mode=memory -uri 1
-  db1 eval {
-    CREATE TABLE t1(x); INSERT INTO t1 VALUES(1),(2),(3);
-  }
-  db2 eval {
-    SELECT x FROM t1 ORDER BY x;
-  }
-} {1 2 3}
-do_test shared-$av-16.5 {
-  db2 eval {
-    INSERT INTO t1 VALUES(99);
-    DELETE FROM t1 WHERE x=2;
-  }
-  db1 eval {
-    SELECT x FROM t1 ORDER BY x;
-  }
-} {1 3 99}
-do_test shared-$av-16.6 {
-  file exists test.db
-} {0}  ;# Verify that the database is in-memory
-
-# Shared cache on named memory databases with different names.
-#
-do_test shared-$av-16.7 {
-  db1 close
-  db2 close
-  forcedelete test1.db test2.db
-  sqlite3 db1 file:test1.db?mode=memory -uri 1
-  sqlite3 db2 file:test2.db?mode=memory -uri 1
-  db1 eval {
-    CREATE TABLE t1(x); INSERT INTO t1 VALUES(1),(2),(3);
-  }
-  catchsql {
-    SELECT x FROM t1 ORDER BY x;
-  } db2
-} {1 {no such table: t1}}
-do_test shared-$av-16.8 {
-  file exists test1.db
-} {0}  ;# Verify that the database is in-memory
-
-# Shared cache on named memory databases attached to readonly connections.
-#
-do_test shared-$av-16.8.1 {
-  db1 close
-  db2 close
-
-  sqlite3 db test1.db
-  db eval { 
-    CREATE TABLE yy(a, b);
-    INSERT INTO yy VALUES(77, 88);
-  }
-  db close
-
-  sqlite3 db1 test1.db -uri 1 -readonly 1
-  sqlite3 db2 test2.db -uri 1 
-
-  db1 eval { 
-    ATTACH 'file:mem?mode=memory&cache=shared' AS shared; 
-    CREATE TABLE shared.xx(a, b);
-    INSERT INTO xx VALUES(55, 66);
-  }
-  db2 eval { 
-    ATTACH 'file:mem?mode=memory&cache=shared' AS shared;
-    SELECT * FROM xx;
-  }
-} {55 66}
-
-do_test shared-$av-16.8.2 { db1 eval { SELECT * FROM yy } } {77 88}
-do_test shared-$av-16.8.3 { 
-  list [catch {db1 eval { INSERT INTO yy VALUES(1, 2) }} msg] $msg
-} {1 {attempt to write a readonly database}}
-
-db1 close
-db2 close
-
-}  ;# end of autovacuum on/off loop
-
-sqlite3_enable_shared_cache $::enable_shared_cache
-finish_test