third_party/sqlite/src/test/memdb.test - cobalt - Git at Google

 # 2001 September 15
 #
 # 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.  The
 # focus of this script is in-memory database backend.
 #
 # $Id: memdb.test,v 1.19 2009/05/18 16:04:38 danielk1977 Exp $


 set testdir [file dirname $argv0]
 source $testdir/tester.tcl

 ifcapable memorydb {

 # In the following sequence of tests, compute the MD5 sum of the content
 # of a table, make lots of modifications to that table, then do a rollback.
 # Verify that after the rollback, the MD5 checksum is unchanged.
 #
 # These tests were browed from trans.tcl.
 #
 do_test memdb-1.1 {
   db close
   sqlite3 db :memory:
   # sqlite3 db test.db
   execsql {
     BEGIN;
     CREATE TABLE t3(x TEXT);
     INSERT INTO t3 VALUES(randstr(10,400));
     INSERT INTO t3 VALUES(randstr(10,400));
     INSERT INTO t3 SELECT randstr(10,400) FROM t3;
     INSERT INTO t3 SELECT randstr(10,400) FROM t3;
     INSERT INTO t3 SELECT randstr(10,400) FROM t3;
     INSERT INTO t3 SELECT randstr(10,400) FROM t3;
     INSERT INTO t3 SELECT randstr(10,400) FROM t3;
     INSERT INTO t3 SELECT randstr(10,400) FROM t3;
     INSERT INTO t3 SELECT randstr(10,400) FROM t3;
     INSERT INTO t3 SELECT randstr(10,400) FROM t3;
     INSERT INTO t3 SELECT randstr(10,400) FROM t3;
     COMMIT;
     SELECT count(*) FROM t3;
   }
 } {1024}

 # The following procedure computes a "signature" for table "t3".  If
 # T3 changes in any way, the signature should change.
 #
 # This is used to test ROLLBACK.  We gather a signature for t3, then
 # make lots of changes to t3, then rollback and take another signature.
 # The two signatures should be the same.
 #
 proc signature {{fn {}}} {
   set rx [db eval {SELECT x FROM t3}]
   # set r1 [md5 $rx\n]
   if {$fn!=""} {
     # set fd [open $fn w]
     # puts $fd $rx
     # close $fd
   }
   # set r [db eval {SELECT count(*), md5sum(x) FROM t3}]
   # puts "SIG($fn)=$r1"
   return [list [string length $rx] $rx]
 }

 # Do rollbacks.  Make sure the signature does not change.
 #
 set limit 10
 for {set i 2} {$i<=$limit} {incr i} {
   set ::sig [signature one]
   # puts "sig=$sig"
   set cnt [lindex $::sig 0]
   if {$i%2==0} {
     execsql {PRAGMA synchronous=FULL}
   } else {
     execsql {PRAGMA synchronous=NORMAL}
   }
   do_test memdb-1.$i.1-$cnt {
      execsql {
        BEGIN;
        DELETE FROM t3 WHERE random()%10!=0;
        INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
        INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
        ROLLBACK;
      }
      set sig2 [signature two]
   } $sig
   # puts "sig2=$sig2"
   # if {$sig2!=$sig} exit
   do_test memdb-1.$i.2-$cnt {
      execsql {
        BEGIN;
        DELETE FROM t3 WHERE random()%10!=0;
        INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
        DELETE FROM t3 WHERE random()%10!=0;
        INSERT INTO t3 SELECT randstr(10,10)||x FROM t3;
        ROLLBACK;
      }
      signature
   } $sig
   if {$i<$limit} {
     do_test memdb-1.$i.9-$cnt {
        execsql {
          INSERT INTO t3 SELECT randstr(10,400) FROM t3 WHERE random()%10==0;
        }
     } {}
   }
   set ::pager_old_format 0
 }

 integrity_check memdb-2.1

 do_test memdb-3.1 {
   execsql {
     CREATE TABLE t4(a,b,c,d);
     BEGIN;
     INSERT INTO t4 VALUES(1,2,3,4);
     SELECT * FROM t4;
   }
 } {1 2 3 4}
 do_test memdb-3.2 {
   execsql {
     SELECT name FROM sqlite_master WHERE type='table';
   }
 } {t3 t4}
 do_test memdb-3.3 {
   execsql {
     DROP TABLE t4;
     SELECT name FROM sqlite_master WHERE type='table';
   }
 } {t3}
 do_test memdb-3.4 {
   execsql {
     ROLLBACK;
     SELECT name FROM sqlite_master WHERE type='table';
   }
 } {t3 t4}

 # Create tables for the first group of tests.
 #
 do_test memdb-4.0 {
   execsql {
     CREATE TABLE t1(a, b, c, UNIQUE(a,b));
     CREATE TABLE t2(x);
     SELECT c FROM t1 ORDER BY c;
   }
 } {}

 # Six columns of configuration data as follows:
 #
 #   i      The reference number of the test
 #   conf   The conflict resolution algorithm on the BEGIN statement
 #   cmd    An INSERT or REPLACE command to execute against table t1
 #   t0     True if there is an error from $cmd
 #   t1     Content of "c" column of t1 assuming no error in $cmd
 #   t2     Content of "x" column of t2
 #
 foreach {i conf cmd t0 t1 t2} {
   1 {}       INSERT                  1 {}  1
   2 {}       {INSERT OR IGNORE}      0 3   1
   3 {}       {INSERT OR REPLACE}     0 4   1
   4 {}       REPLACE                 0 4   1
   5 {}       {INSERT OR FAIL}        1 {}  1
   6 {}       {INSERT OR ABORT}       1 {}  1
   7 {}       {INSERT OR ROLLBACK}    1 {}  {}
 } {

   # All tests after test 1 depend on conflict resolution. So end the
   # loop if that is not available in this build.
   ifcapable !conflict {if {$i>1} break}

   do_test memdb-4.$i {
     if {$conf!=""} {set conf "ON CONFLICT $conf"}
     set r0 [catch {execsql [subst {
       DELETE FROM t1;
       DELETE FROM t2;
       INSERT INTO t1 VALUES(1,2,3);
       BEGIN $conf;
       INSERT INTO t2 VALUES(1);
       $cmd INTO t1 VALUES(1,2,4);
     }]} r1]
     catch {execsql {COMMIT}}
     if {$r0} {set r1 {}} {set r1 [execsql {SELECT c FROM t1}]}
     set r2 [execsql {SELECT x FROM t2}]
     list $r0 $r1 $r2
   } [list $t0 $t1 $t2]
 }

 do_test memdb-5.0 {
   execsql {
     DROP TABLE t2;
     DROP TABLE t3;
     CREATE TABLE t2(a,b,c);
     INSERT INTO t2 VALUES(1,2,1);
     INSERT INTO t2 VALUES(2,3,2);
     INSERT INTO t2 VALUES(3,4,1);
     INSERT INTO t2 VALUES(4,5,4);
     SELECT c FROM t2 ORDER BY b;
     CREATE TABLE t3(x);
     INSERT INTO t3 VALUES(1);
   }
 } {1 2 1 4}

 # Six columns of configuration data as follows:
 #
 #   i      The reference number of the test
 #   conf1  The conflict resolution algorithm on the UNIQUE constraint
 #   conf2  The conflict resolution algorithm on the BEGIN statement
 #   cmd    An UPDATE command to execute against table t1
 #   t0     True if there is an error from $cmd
 #   t1     Content of "b" column of t1 assuming no error in $cmd
 #   t2     Content of "x" column of t3
 #
 foreach {i conf1 conf2 cmd t0 t1 t2} {
   1 {}       {}       UPDATE                  1 {6 7 8 9}  1
   2 REPLACE  {}       UPDATE                  0 {7 6 9}    1
   3 IGNORE   {}       UPDATE                  0 {6 7 3 9}  1
   4 FAIL     {}       UPDATE                  1 {6 7 3 4}  1
   5 ABORT    {}       UPDATE                  1 {1 2 3 4}  1
   6 ROLLBACK {}       UPDATE                  1 {1 2 3 4}  0
   7 REPLACE  {}       {UPDATE OR IGNORE}      0 {6 7 3 9}  1
   8 IGNORE   {}       {UPDATE OR REPLACE}     0 {7 6 9}    1
   9 FAIL     {}       {UPDATE OR IGNORE}      0 {6 7 3 9}  1
  10 ABORT    {}       {UPDATE OR REPLACE}     0 {7 6 9}    1
  11 ROLLBACK {}       {UPDATE OR IGNORE}      0 {6 7 3 9}   1
  12 {}       {}       {UPDATE OR IGNORE}      0 {6 7 3 9}  1
  13 {}       {}       {UPDATE OR REPLACE}     0 {7 6 9}    1
  14 {}       {}       {UPDATE OR FAIL}        1 {6 7 3 4}  1
  15 {}       {}       {UPDATE OR ABORT}       1 {1 2 3 4}  1
  16 {}       {}       {UPDATE OR ROLLBACK}    1 {1 2 3 4}  0
 } {
   # All tests after test 1 depend on conflict resolution. So end the
   # loop if that is not available in this build.
   ifcapable !conflict {
     if {$i>1} break
   }

   if {$t0} {set t1 {column a is not unique}}
   do_test memdb-5.$i {
     if {$conf1!=""} {set conf1 "ON CONFLICT $conf1"}
     if {$conf2!=""} {set conf2 "ON CONFLICT $conf2"}
     set r0 [catch {execsql "
       DROP TABLE t1;
       CREATE TABLE t1(a,b,c, UNIQUE(a) $conf1);
       INSERT INTO t1 SELECT * FROM t2;
       UPDATE t3 SET x=0;
       BEGIN $conf2;
       $cmd t3 SET x=1;
       $cmd t1 SET b=b*2;
       $cmd t1 SET a=c+5;
     "} r1]
     catch {execsql {COMMIT}}
     if {!$r0} {set r1 [execsql {SELECT a FROM t1 ORDER BY b}]}
     set r2 [execsql {SELECT x FROM t3}]
     list $r0 $r1 $r2
   } [list $t0 $t1 $t2]
 }

 do_test memdb-6.1 {
   execsql {
     SELECT * FROM t2;
   }
 } {1 2 1 2 3 2 3 4 1 4 5 4}
 do_test memdb-6.2 {
   execsql {
     BEGIN;
     DROP TABLE t2;
     SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
   }
 } {t1 t3 t4}
 do_test memdb-6.3 {
   execsql {
     ROLLBACK;
     SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
   }
 } {t1 t2 t3 t4}
 do_test memdb-6.4 {
   execsql {
     SELECT * FROM t2;
   }
 } {1 2 1 2 3 2 3 4 1 4 5 4}
 ifcapable compound {
 do_test memdb-6.5 {
   execsql {
     SELECT a FROM t2 UNION SELECT b FROM t2 ORDER BY 1;
   }
 } {1 2 3 4 5}
 } ;# ifcapable compound
 do_test memdb-6.6 {
   execsql {
     CREATE INDEX i2 ON t2(c);
     SELECT a FROM t2 ORDER BY c;
   }
 } {1 3 2 4}
 do_test memdb-6.6 {
   execsql {
     SELECT a FROM t2 ORDER BY c DESC;
   }
 } {4 2 3 1}
 do_test memdb-6.7 {
   execsql {
     BEGIN;
     CREATE TABLE t5(x,y);
     INSERT INTO t5 VALUES(1,2);
     SELECT * FROM t5;
   }
 } {1 2}
 do_test memdb-6.8 {
   execsql {
     SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
   }
 } {t1 t2 t3 t4 t5}
 do_test memdb-6.9 {
   execsql {
     ROLLBACK;
     SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
   }
 } {t1 t2 t3 t4}
 do_test memdb-6.10 {
   execsql {
     CREATE TABLE t5(x PRIMARY KEY, y UNIQUE);
     SELECT * FROM t5;
   }
 } {}
 do_test memdb-6.11 {
   execsql {
     SELECT * FROM t5 ORDER BY y DESC;
   }
 } {}

 ifcapable conflict {
   do_test memdb-6.12 {
     execsql {
       INSERT INTO t5 VALUES(1,2);
       INSERT INTO t5 VALUES(3,4);
       REPLACE INTO t5 VALUES(1,4);
       SELECT rowid,* FROM t5;
     }
   } {3 1 4}
   do_test memdb-6.13 {
     execsql {
       DELETE FROM t5 WHERE x>5;
       SELECT * FROM t5;
     }
   } {1 4}
   do_test memdb-6.14 {
     execsql {
       DELETE FROM t5 WHERE y<3;
       SELECT * FROM t5;
     }
   } {1 4}
 }

 do_test memdb-6.15 {
   execsql {
     DELETE FROM t5 WHERE x>0;
     SELECT * FROM t5;
   }
 } {}

 ifcapable subquery&&vtab {
   do_test memdb-7.1 {
     register_wholenumber_module db
     execsql {
       CREATE TABLE t6(x);
       CREATE VIRTUAL TABLE nums USING wholenumber;
       INSERT INTO t6 SELECT value FROM nums WHERE value BETWEEN 1 AND 256;
       SELECT count(*) FROM (SELECT DISTINCT x FROM t6);
     }
   } {256}
   for {set i 1} {$i<=256} {incr i} {
     do_test memdb-7.2.$i {
        execsql "DELETE FROM t6 WHERE x=\
                 (SELECT x FROM t6 ORDER BY random() LIMIT 1)"
        execsql {SELECT count(*) FROM t6}
     } [expr {256-$i}]
   }
 }

 # Ticket #1524
 #
 do_test memdb-8.1 {
   db close
   sqlite3 db {:memory:}
   execsql {
     PRAGMA auto_vacuum=TRUE;
     CREATE TABLE t1(a);
     INSERT INTO t1 VALUES(randstr(5000,6000));
     INSERT INTO t1 VALUES(randstr(5000,6000));
     INSERT INTO t1 VALUES(randstr(5000,6000));
     INSERT INTO t1 VALUES(randstr(5000,6000));
     INSERT INTO t1 VALUES(randstr(5000,6000));
     SELECT count(*) FROM t1;
   }
 } 5
 do_test memdb-8.2 {
   execsql {
     DELETE FROM t1;
     SELECT count(*) FROM t1;
   }
 } 0

 # Test that auto-vacuum works with in-memory databases.
 #
 ifcapable autovacuum {
   do_test memdb-9.1 {
     db close
     sqlite3 db test.db
     db cache size 0
     execsql {
       PRAGMA auto_vacuum = full;
       CREATE TABLE t1(a);
       INSERT INTO t1 VALUES(randstr(1000,1000));
       INSERT INTO t1 VALUES(randstr(1000,1000));
       INSERT INTO t1 VALUES(randstr(1000,1000));
     }
     set memused [lindex [sqlite3_status SQLITE_STATUS_MEMORY_USED 0] 1]
     set pgovfl [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 1]
     execsql { DELETE FROM t1 }
     set memused2 [lindex [sqlite3_status SQLITE_STATUS_MEMORY_USED 0] 1]
     expr {($memused2 + 2048 < $memused) || $pgovfl==0}
   } {1}
 }

 } ;# ifcapable memorydb

 finish_test
	# 2001 September 15
	#
	# 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. The
	# focus of this script is in-memory database backend.
	#
	# $Id: memdb.test,v 1.19 2009/05/18 16:04:38 danielk1977 Exp $


	set testdir [file dirname $argv0]
	source $testdir/tester.tcl

	ifcapable memorydb {

	# In the following sequence of tests, compute the MD5 sum of the content
	# of a table, make lots of modifications to that table, then do a rollback.
	# Verify that after the rollback, the MD5 checksum is unchanged.
	#
	# These tests were browed from trans.tcl.
	#
	do_test memdb-1.1 {
	db close
	sqlite3 db :memory:
	# sqlite3 db test.db
	execsql {
	BEGIN;
	CREATE TABLE t3(x TEXT);
	INSERT INTO t3 VALUES(randstr(10,400));
	INSERT INTO t3 VALUES(randstr(10,400));
	INSERT INTO t3 SELECT randstr(10,400) FROM t3;
	INSERT INTO t3 SELECT randstr(10,400) FROM t3;
	INSERT INTO t3 SELECT randstr(10,400) FROM t3;
	INSERT INTO t3 SELECT randstr(10,400) FROM t3;
	INSERT INTO t3 SELECT randstr(10,400) FROM t3;
	INSERT INTO t3 SELECT randstr(10,400) FROM t3;
	INSERT INTO t3 SELECT randstr(10,400) FROM t3;
	INSERT INTO t3 SELECT randstr(10,400) FROM t3;
	INSERT INTO t3 SELECT randstr(10,400) FROM t3;
	COMMIT;
	SELECT count(*) FROM t3;
	}
	} {1024}

	# The following procedure computes a "signature" for table "t3". If
	# T3 changes in any way, the signature should change.
	#
	# This is used to test ROLLBACK. We gather a signature for t3, then
	# make lots of changes to t3, then rollback and take another signature.
	# The two signatures should be the same.
	#
	proc signature {{fn {}}} {
	set rx [db eval {SELECT x FROM t3}]
	# set r1 [md5 $rx\n]
	if {$fn!=""} {
	# set fd [open $fn w]
	# puts $fd $rx
	# close $fd
	}
	# set r [db eval {SELECT count(*), md5sum(x) FROM t3}]
	# puts "SIG($fn)=$r1"
	return [list [string length $rx] $rx]
	}

	# Do rollbacks. Make sure the signature does not change.
	#
	set limit 10
	for {set i 2} {$i<=$limit} {incr i} {
	set ::sig [signature one]
	# puts "sig=$sig"
	set cnt [lindex $::sig 0]
	if {$i%2==0} {
	execsql {PRAGMA synchronous=FULL}
	} else {
	execsql {PRAGMA synchronous=NORMAL}
	}
	do_test memdb-1.$i.1-$cnt {
	execsql {
	BEGIN;
	DELETE FROM t3 WHERE random()%10!=0;
	INSERT INTO t3 SELECT randstr(10,10)\|\|x FROM t3;
	INSERT INTO t3 SELECT randstr(10,10)\|\|x FROM t3;
	ROLLBACK;
	}
	set sig2 [signature two]
	} $sig
	# puts "sig2=$sig2"
	# if {$sig2!=$sig} exit
	do_test memdb-1.$i.2-$cnt {
	execsql {
	BEGIN;
	DELETE FROM t3 WHERE random()%10!=0;
	INSERT INTO t3 SELECT randstr(10,10)\|\|x FROM t3;
	DELETE FROM t3 WHERE random()%10!=0;
	INSERT INTO t3 SELECT randstr(10,10)\|\|x FROM t3;
	ROLLBACK;
	}
	signature
	} $sig
	if {$i<$limit} {
	do_test memdb-1.$i.9-$cnt {
	execsql {
	INSERT INTO t3 SELECT randstr(10,400) FROM t3 WHERE random()%10==0;
	}
	} {}
	}
	set ::pager_old_format 0
	}

	integrity_check memdb-2.1

	do_test memdb-3.1 {
	execsql {
	CREATE TABLE t4(a,b,c,d);
	BEGIN;
	INSERT INTO t4 VALUES(1,2,3,4);
	SELECT * FROM t4;
	}
	} {1 2 3 4}
	do_test memdb-3.2 {
	execsql {
	SELECT name FROM sqlite_master WHERE type='table';
	}
	} {t3 t4}
	do_test memdb-3.3 {
	execsql {
	DROP TABLE t4;
	SELECT name FROM sqlite_master WHERE type='table';
	}
	} {t3}
	do_test memdb-3.4 {
	execsql {
	ROLLBACK;
	SELECT name FROM sqlite_master WHERE type='table';
	}
	} {t3 t4}

	# Create tables for the first group of tests.
	#
	do_test memdb-4.0 {
	execsql {
	CREATE TABLE t1(a, b, c, UNIQUE(a,b));
	CREATE TABLE t2(x);
	SELECT c FROM t1 ORDER BY c;
	}
	} {}

	# Six columns of configuration data as follows:
	#
	# i The reference number of the test
	# conf The conflict resolution algorithm on the BEGIN statement
	# cmd An INSERT or REPLACE command to execute against table t1
	# t0 True if there is an error from $cmd
	# t1 Content of "c" column of t1 assuming no error in $cmd
	# t2 Content of "x" column of t2
	#
	foreach {i conf cmd t0 t1 t2} {
	1 {} INSERT 1 {} 1
	2 {} {INSERT OR IGNORE} 0 3 1
	3 {} {INSERT OR REPLACE} 0 4 1
	4 {} REPLACE 0 4 1
	5 {} {INSERT OR FAIL} 1 {} 1
	6 {} {INSERT OR ABORT} 1 {} 1
	7 {} {INSERT OR ROLLBACK} 1 {} {}
	} {

	# All tests after test 1 depend on conflict resolution. So end the
	# loop if that is not available in this build.
	ifcapable !conflict {if {$i>1} break}

	do_test memdb-4.$i {
	if {$conf!=""} {set conf "ON CONFLICT $conf"}
	set r0 [catch {execsql [subst {
	DELETE FROM t1;
	DELETE FROM t2;
	INSERT INTO t1 VALUES(1,2,3);
	BEGIN $conf;
	INSERT INTO t2 VALUES(1);
	$cmd INTO t1 VALUES(1,2,4);
	}]} r1]
	catch {execsql {COMMIT}}
	if {$r0} {set r1 {}} {set r1 [execsql {SELECT c FROM t1}]}
	set r2 [execsql {SELECT x FROM t2}]
	list $r0 $r1 $r2
	} [list $t0 $t1 $t2]
	}

	do_test memdb-5.0 {
	execsql {
	DROP TABLE t2;
	DROP TABLE t3;
	CREATE TABLE t2(a,b,c);
	INSERT INTO t2 VALUES(1,2,1);
	INSERT INTO t2 VALUES(2,3,2);
	INSERT INTO t2 VALUES(3,4,1);
	INSERT INTO t2 VALUES(4,5,4);
	SELECT c FROM t2 ORDER BY b;
	CREATE TABLE t3(x);
	INSERT INTO t3 VALUES(1);
	}
	} {1 2 1 4}

	# Six columns of configuration data as follows:
	#
	# i The reference number of the test
	# conf1 The conflict resolution algorithm on the UNIQUE constraint
	# conf2 The conflict resolution algorithm on the BEGIN statement
	# cmd An UPDATE command to execute against table t1
	# t0 True if there is an error from $cmd
	# t1 Content of "b" column of t1 assuming no error in $cmd
	# t2 Content of "x" column of t3
	#
	foreach {i conf1 conf2 cmd t0 t1 t2} {
	1 {} {} UPDATE 1 {6 7 8 9} 1
	2 REPLACE {} UPDATE 0 {7 6 9} 1
	3 IGNORE {} UPDATE 0 {6 7 3 9} 1
	4 FAIL {} UPDATE 1 {6 7 3 4} 1
	5 ABORT {} UPDATE 1 {1 2 3 4} 1
	6 ROLLBACK {} UPDATE 1 {1 2 3 4} 0
	7 REPLACE {} {UPDATE OR IGNORE} 0 {6 7 3 9} 1
	8 IGNORE {} {UPDATE OR REPLACE} 0 {7 6 9} 1
	9 FAIL {} {UPDATE OR IGNORE} 0 {6 7 3 9} 1
	10 ABORT {} {UPDATE OR REPLACE} 0 {7 6 9} 1
	11 ROLLBACK {} {UPDATE OR IGNORE} 0 {6 7 3 9} 1
	12 {} {} {UPDATE OR IGNORE} 0 {6 7 3 9} 1
	13 {} {} {UPDATE OR REPLACE} 0 {7 6 9} 1
	14 {} {} {UPDATE OR FAIL} 1 {6 7 3 4} 1
	15 {} {} {UPDATE OR ABORT} 1 {1 2 3 4} 1
	16 {} {} {UPDATE OR ROLLBACK} 1 {1 2 3 4} 0
	} {
	# All tests after test 1 depend on conflict resolution. So end the
	# loop if that is not available in this build.
	ifcapable !conflict {
	if {$i>1} break
	}

	if {$t0} {set t1 {column a is not unique}}
	do_test memdb-5.$i {
	if {$conf1!=""} {set conf1 "ON CONFLICT $conf1"}
	if {$conf2!=""} {set conf2 "ON CONFLICT $conf2"}
	set r0 [catch {execsql "
	DROP TABLE t1;
	CREATE TABLE t1(a,b,c, UNIQUE(a) $conf1);
	INSERT INTO t1 SELECT * FROM t2;
	UPDATE t3 SET x=0;
	BEGIN $conf2;
	$cmd t3 SET x=1;
	$cmd t1 SET b=b*2;
	$cmd t1 SET a=c+5;
	"} r1]
	catch {execsql {COMMIT}}
	if {!$r0} {set r1 [execsql {SELECT a FROM t1 ORDER BY b}]}
	set r2 [execsql {SELECT x FROM t3}]
	list $r0 $r1 $r2
	} [list $t0 $t1 $t2]
	}

	do_test memdb-6.1 {
	execsql {
	SELECT * FROM t2;
	}
	} {1 2 1 2 3 2 3 4 1 4 5 4}
	do_test memdb-6.2 {
	execsql {
	BEGIN;
	DROP TABLE t2;
	SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
	}
	} {t1 t3 t4}
	do_test memdb-6.3 {
	execsql {
	ROLLBACK;
	SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
	}
	} {t1 t2 t3 t4}
	do_test memdb-6.4 {
	execsql {
	SELECT * FROM t2;
	}
	} {1 2 1 2 3 2 3 4 1 4 5 4}
	ifcapable compound {
	do_test memdb-6.5 {
	execsql {
	SELECT a FROM t2 UNION SELECT b FROM t2 ORDER BY 1;
	}
	} {1 2 3 4 5}
	} ;# ifcapable compound
	do_test memdb-6.6 {
	execsql {
	CREATE INDEX i2 ON t2(c);
	SELECT a FROM t2 ORDER BY c;
	}
	} {1 3 2 4}
	do_test memdb-6.6 {
	execsql {
	SELECT a FROM t2 ORDER BY c DESC;
	}
	} {4 2 3 1}
	do_test memdb-6.7 {
	execsql {
	BEGIN;
	CREATE TABLE t5(x,y);
	INSERT INTO t5 VALUES(1,2);
	SELECT * FROM t5;
	}
	} {1 2}
	do_test memdb-6.8 {
	execsql {
	SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
	}
	} {t1 t2 t3 t4 t5}
	do_test memdb-6.9 {
	execsql {
	ROLLBACK;
	SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
	}
	} {t1 t2 t3 t4}
	do_test memdb-6.10 {
	execsql {
	CREATE TABLE t5(x PRIMARY KEY, y UNIQUE);
	SELECT * FROM t5;
	}
	} {}
	do_test memdb-6.11 {
	execsql {
	SELECT * FROM t5 ORDER BY y DESC;
	}
	} {}

	ifcapable conflict {
	do_test memdb-6.12 {
	execsql {
	INSERT INTO t5 VALUES(1,2);
	INSERT INTO t5 VALUES(3,4);
	REPLACE INTO t5 VALUES(1,4);
	SELECT rowid,* FROM t5;
	}
	} {3 1 4}
	do_test memdb-6.13 {
	execsql {
	DELETE FROM t5 WHERE x>5;
	SELECT * FROM t5;
	}
	} {1 4}
	do_test memdb-6.14 {
	execsql {
	DELETE FROM t5 WHERE y<3;
	SELECT * FROM t5;
	}
	} {1 4}
	}

	do_test memdb-6.15 {
	execsql {
	DELETE FROM t5 WHERE x>0;
	SELECT * FROM t5;
	}
	} {}

	ifcapable subquery&&vtab {
	do_test memdb-7.1 {
	register_wholenumber_module db
	execsql {
	CREATE TABLE t6(x);
	CREATE VIRTUAL TABLE nums USING wholenumber;
	INSERT INTO t6 SELECT value FROM nums WHERE value BETWEEN 1 AND 256;
	SELECT count(*) FROM (SELECT DISTINCT x FROM t6);
	}
	} {256}
	for {set i 1} {$i<=256} {incr i} {
	do_test memdb-7.2.$i {
	execsql "DELETE FROM t6 WHERE x=\
	(SELECT x FROM t6 ORDER BY random() LIMIT 1)"
	execsql {SELECT count(*) FROM t6}
	} [expr {256-$i}]
	}
	}

	# Ticket #1524
	#
	do_test memdb-8.1 {
	db close
	sqlite3 db {:memory:}
	execsql {
	PRAGMA auto_vacuum=TRUE;
	CREATE TABLE t1(a);
	INSERT INTO t1 VALUES(randstr(5000,6000));
	INSERT INTO t1 VALUES(randstr(5000,6000));
	INSERT INTO t1 VALUES(randstr(5000,6000));
	INSERT INTO t1 VALUES(randstr(5000,6000));
	INSERT INTO t1 VALUES(randstr(5000,6000));
	SELECT count(*) FROM t1;
	}
	} 5
	do_test memdb-8.2 {
	execsql {
	DELETE FROM t1;
	SELECT count(*) FROM t1;
	}
	} 0

	# Test that auto-vacuum works with in-memory databases.
	#
	ifcapable autovacuum {
	do_test memdb-9.1 {
	db close
	sqlite3 db test.db
	db cache size 0
	execsql {
	PRAGMA auto_vacuum = full;
	CREATE TABLE t1(a);
	INSERT INTO t1 VALUES(randstr(1000,1000));
	INSERT INTO t1 VALUES(randstr(1000,1000));
	INSERT INTO t1 VALUES(randstr(1000,1000));
	}
	set memused [lindex [sqlite3_status SQLITE_STATUS_MEMORY_USED 0] 1]
	set pgovfl [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 1]
	execsql { DELETE FROM t1 }
	set memused2 [lindex [sqlite3_status SQLITE_STATUS_MEMORY_USED 0] 1]
	expr {($memused2 + 2048 < $memused) \|\| $pgovfl==0}
	} {1}
	}

	} ;# ifcapable memorydb

	finish_test