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			590 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
# 2011 Mar 21
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#
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# The author disclaims copyright to this source code.  In place of
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# a legal notice, here is a blessing:
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#
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#    May you do good and not evil.
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#    May you find forgiveness for yourself and forgive others.
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#    May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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# The focus of this file is testing the session module.
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#
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if {![info exists testdir]} {
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  set testdir [file join [file dirname [info script]] .. .. test]
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} 
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source [file join [file dirname [info script]] session_common.tcl]
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source $testdir/tester.tcl
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ifcapable !session {finish_test; return}
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set testprefix sessionfault
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forcedelete test.db2
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sqlite3 db2 test.db2
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do_common_sql {
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  CREATE TABLE t1(a, b, c, PRIMARY KEY(a, b));
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  INSERT INTO t1 VALUES(1, 2, 3);
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  INSERT INTO t1 VALUES(4, 5, 6);
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}
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faultsim_save_and_close
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db2 close
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#-------------------------------------------------------------------------
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# Test OOM error handling when collecting and applying a simple changeset.
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#
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# Test 1.1 attaches tables individually by name to the session object. 
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# Whereas test 1.2 passes NULL to sqlite3session_attach() to attach all
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# tables.
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#
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do_faultsim_test 1.1 -faults oom-* -prep {
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  catch {db2 close}
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  catch {db close}
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  faultsim_restore_and_reopen
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  sqlite3 db2 test.db2
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} -body {
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  do_then_apply_sql {
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    INSERT INTO t1 VALUES('a string value', 8, 9);
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    UPDATE t1 SET c = 10 WHERE a = 1;
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    DELETE FROM t1 WHERE a = 4;
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  }
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} -test {
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  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
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  faultsim_integrity_check
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  if {$testrc==0} { compare_db db db2 }
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}
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do_faultsim_test 1.2 -faults oom-* -prep {
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  catch {db2 close}
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  catch {db close}
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  faultsim_restore_and_reopen
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} -body {
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  sqlite3session S db main
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  S attach *
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  execsql {
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    INSERT INTO t1 VALUES('a string value', 8, 9);
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    UPDATE t1 SET c = 10 WHERE a = 1;
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    DELETE FROM t1 WHERE a = 4;
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  }
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  set ::changeset [S changeset]
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  set {} {}
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} -test {
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  catch { S delete }
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  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
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  faultsim_integrity_check
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  if {$testrc==0} { 
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    proc xConflict {args} { return "OMIT" }
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    sqlite3 db2 test.db2
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    sqlite3changeset_apply db2 $::changeset xConflict
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    compare_db db db2 
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  }
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}
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#-------------------------------------------------------------------------
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# The following block of tests - 2.* - are designed to check 
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# the handling of faults in the sqlite3changeset_apply() function.
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#
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catch {db close}
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catch {db2 close}
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forcedelete test.db2 test.db
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sqlite3 db2 test.db2
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sqlite3 db test.db
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do_common_sql {
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  CREATE TABLE t1(a, b, c, PRIMARY KEY(a, b));
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  INSERT INTO t1 VALUES('apple', 'orange', 'pear');
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  CREATE TABLE t2(x PRIMARY KEY, y);
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}
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db2 close
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faultsim_save_and_close
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foreach {tn conflict_policy sql sql2} {
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  1 OMIT { INSERT INTO t1 VALUES('one text', 'two text', X'00ff00') } {}
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  2 OMIT { DELETE FROM t1 WHERE a = 'apple' }                         {}
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  3 OMIT { UPDATE t1 SET c = 'banana' WHERE b = 'orange' }            {}
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  4 REPLACE { INSERT INTO t2 VALUES('keyvalue', 'value 1') } {
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    INSERT INTO t2 VALUES('keyvalue', 'value 2');
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  }
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} {
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  proc xConflict args [list return $conflict_policy]
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  do_faultsim_test 2.$tn -faults oom-transient -prep {
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    catch {db2 close}
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    catch {db close}
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    faultsim_restore_and_reopen
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    set ::changeset [changeset_from_sql $::sql]
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    sqlite3 db2 test.db2
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    sqlite3_db_config_lookaside db2 0 0 0
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    execsql $::sql2 db2
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  } -body {
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    sqlite3changeset_apply db2 $::changeset xConflict
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  } -test {
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    faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
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    faultsim_integrity_check
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    if {$testrc==0} { compare_db db db2 }
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  }
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}
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#-------------------------------------------------------------------------
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# This test case is designed so that a malloc() failure occurs while
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# resizing the session object hash-table from 256 to 512 buckets. This
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# is not an error, just a sub-optimal condition.
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#
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do_faultsim_test 3 -faults oom-* -prep {
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  catch {db2 close}
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  catch {db close}
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  faultsim_restore_and_reopen
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  sqlite3 db2 test.db2
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  sqlite3session S db main
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  S attach t1
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  execsql { BEGIN }
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  for {set i 0} {$i < 125} {incr i} {
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    execsql {INSERT INTO t1 VALUES(10+$i, 10+$i, 10+$i)}
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  }
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} -body {
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  for {set i 125} {$i < 133} {incr i} {
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    execsql {INSERT INTO t1 VALUES(10+$i, 10+$i, 1-+$i)}
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  }
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  S changeset
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  set {} {}
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} -test {
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  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
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  if {$testrc==0} { 
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    sqlite3changeset_apply db2 [S changeset] xConflict
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    compare_db db db2 
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  }
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  catch { S delete }
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  faultsim_integrity_check
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}
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catch { db close }
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catch { db2 close }
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forcedelete test.db2 test.db
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sqlite3 db2 test.db2
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sqlite3 db test.db
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proc xConflict {op tbl type args} {
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  if { $type=="CONFLICT" || $type=="DATA" } {
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    return "REPLACE"
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  }
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  return "OMIT"
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}
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do_test 4.0 {
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  execsql {
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    PRAGMA encoding = 'utf16';
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    CREATE TABLE t1(a PRIMARY KEY, b);
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    INSERT INTO t1 VALUES(5, 32);
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  }
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  execsql {
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    PRAGMA encoding = 'utf16';
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    CREATE TABLE t1(a PRIMARY KEY, b NOT NULL);
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    INSERT INTO t1 VALUES(1, 2);
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    INSERT INTO t1 VALUES(2, 4);
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    INSERT INTO t1 VALUES(4, 16);
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  } db2
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} {}
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faultsim_save_and_close
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db2 close
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do_faultsim_test 4 -faults oom-* -prep {
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  catch {db2 close}
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  catch {db close}
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  faultsim_restore_and_reopen
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  sqlite3 db2 test.db2
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  sqlite3session S db main
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  S attach t1
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  execsql {
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    INSERT INTO t1 VALUES(1, 45);
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    INSERT INTO t1 VALUES(2, 55);
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    INSERT INTO t1 VALUES(3, 55);
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    UPDATE t1 SET a = 4 WHERE a = 5;
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  }
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} -body {
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  sqlite3changeset_apply db2 [S changeset] xConflict
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} -test {
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  catch { S delete }
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  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
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  if {$testrc==0} { compare_db db db2 }
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}
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#-------------------------------------------------------------------------
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# This block of tests verifies that OOM faults in the 
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# sqlite3changeset_invert() function are handled correctly.
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#
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catch {db close}
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catch {db2 close}
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forcedelete test.db
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sqlite3 db test.db
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execsql {
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  CREATE TABLE t1(a, b, PRIMARY KEY(b));
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  CREATE TABLE t2(a PRIMARY KEY, b);
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  INSERT INTO t1 VALUES('string', 1);
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  INSERT INTO t1 VALUES(4, 2);
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  INSERT INTO t1 VALUES(X'FFAAFFAAFFAA', 3);
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}
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set changeset [changeset_from_sql {
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  INSERT INTO t1 VALUES('xxx', 'yyy');
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  DELETE FROM t1 WHERE a = 'string';
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  UPDATE t1 SET a = 20 WHERE b = 2;
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}]
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db close
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do_faultsim_test 5.1 -faults oom* -body {
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  set ::inverse [sqlite3changeset_invert $::changeset]
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  set {} {}
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} -test {
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  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
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  if {$testrc==0} {
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    set x [list]
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    sqlite3session_foreach c $::inverse { lappend x $c }
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    foreach c {
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        {DELETE t1 0 .X {t xxx t yyy} {}} 
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        {INSERT t1 0 .X {} {t string i 1}} 
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        {UPDATE t1 0 .X {i 20 i 2} {i 4 {} {}}}
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    } { lappend y $c }
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    if {$x != $y} { error "changeset no good" }
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  }
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}
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catch {db close}
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catch {db2 close}
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forcedelete test.db
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sqlite3 db test.db
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execsql {
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  CREATE TABLE t2(a PRIMARY KEY, b);
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  INSERT INTO t2 VALUES(1, 'abc');
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  INSERT INTO t2 VALUES(2, 'def');
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}
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set changeset [changeset_from_sql {
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  UPDATE t2 SET b = (b || b || b || b);
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  UPDATE t2 SET b = (b || b || b || b);
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  UPDATE t2 SET b = (b || b || b || b);
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  UPDATE t2 SET b = (b || b || b || b);
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}]
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db close
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set abc [string repeat abc 256]
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set def [string repeat def 256]
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do_faultsim_test 5.2 -faults oom-tra* -body {
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  set ::inverse [sqlite3changeset_invert $::changeset]
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  set {} {}
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} -test {
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  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
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  if {$testrc==0} {
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    set x [list]
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    sqlite3session_foreach c $::inverse { lappend x $c }
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    foreach c "
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        {UPDATE t2 0 X. {i 1 t $::abc} {{} {} t abc}}
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        {UPDATE t2 0 X. {i 2 t $::def} {{} {} t def}}
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    " { lappend y $c }
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    if {$x != $y} { error "changeset no good" }
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  }
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}
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catch {db close}
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catch {db2 close}
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forcedelete test.db
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sqlite3 db test.db
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set abc [string repeat abc 256]
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set def [string repeat def 256]
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execsql "
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  CREATE TABLE t2(a PRIMARY KEY, b);
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  INSERT INTO t2 VALUES(1, '$abc');
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"
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set changeset [changeset_from_sql "
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  INSERT INTO t2 VALUES(2, '$def');
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  DELETE FROM t2 WHERE a = 1;
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"]
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db close
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do_faultsim_test 5.3 -faults oom-tra* -body {
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  set ::inverse [sqlite3changeset_invert $::changeset]
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  set {} {}
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} -test {
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  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
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  if {$testrc==0} {
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    set x [list]
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    sqlite3session_foreach c $::inverse { lappend x $c }
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    foreach c "
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        {INSERT t2 0 X. {} {i 1 t $::abc}}
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        {DELETE t2 0 X. {i 2 t $::def} {}}
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    " { lappend y $c }
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    if {$x != $y} { error "changeset no good" }
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  }
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}
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#-------------------------------------------------------------------------
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# Test that OOM errors in sqlite3changeset_concat() are handled correctly.
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#
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catch {db close}
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forcedelete test.db
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sqlite3 db test.db
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do_execsql_test 5.prep1 {
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  CREATE TABLE t1(a, b, PRIMARY KEY(b));
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  CREATE TABLE t2(a PRIMARY KEY, b);
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  INSERT INTO t1 VALUES('string', 1);
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  INSERT INTO t1 VALUES(4, 2);
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  INSERT INTO t1 VALUES(X'FFAAFFAAFFAA', 3);
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}
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do_test 6.prep2 {
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  sqlite3session M db main
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  M attach *
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  set ::c2 [changeset_from_sql {
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    INSERT INTO t2 VALUES(randomblob(1000), randomblob(1000));
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    INSERT INTO t2 VALUES('one', 'two');
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    INSERT INTO t2 VALUES(1, NULL);
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    UPDATE t1 SET a = 5 WHERE a = 2;
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  }]
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  set ::c1 [changeset_from_sql {
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    DELETE FROM t2 WHERE a = 1;
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    UPDATE t1 SET a = 4 WHERE a = 2;
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    INSERT INTO t2 VALUES('x', 'y');
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  }]
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  set ::total [changeset_to_list [M changeset]]
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  M delete
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} {}
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do_faultsim_test 6 -faults oom-* -body {
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  set ::result [sqlite3changeset_concat $::c1 $::c2]
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  set {} {}
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} -test {
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  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
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  if {$testrc==0} {
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    set v [changeset_to_list $::result]
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    if {$v != $::total} { error "result no good" }
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  }
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}
 | 
						|
 | 
						|
faultsim_delete_and_reopen
 | 
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do_execsql_test 7.prep1 {
 | 
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  CREATE TABLE t1(a, b, PRIMARY KEY(a));
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}
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faultsim_save_and_close
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set res [list]
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for {set ::i 0} {$::i < 480} {incr ::i 4} {
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  lappend res "INSERT t1 0 X. {} {i $::i i $::i}"
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}
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set res [lsort $res]
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do_faultsim_test 7 -faults oom-transient -prep {
 | 
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  catch { S delete }
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						|
  faultsim_restore_and_reopen
 | 
						|
  sqlite3session S db main
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						|
  S attach *
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						|
} -body {
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						|
  for {set ::i 0} {$::i < 480} {incr ::i 4} {
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    execsql {INSERT INTO t1 VALUES($::i, $::i)}
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						|
  }
 | 
						|
} -test {
 | 
						|
  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
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						|
  if {$testrc==0} {
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						|
    set cres [list [catch {changeset_to_list [S changeset]} msg] $msg]
 | 
						|
    S delete
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						|
    if {$cres != "1 SQLITE_NOMEM" && $cres != "0 {$::res}"} {
 | 
						|
      error "Expected {0 $::res} Got {$cres}"
 | 
						|
    }
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						|
  } else {
 | 
						|
    catch { S changeset }
 | 
						|
    catch { S delete }
 | 
						|
  }
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						|
}
 | 
						|
 | 
						|
faultsim_delete_and_reopen
 | 
						|
do_test 8.prep {
 | 
						|
  sqlite3session S db main
 | 
						|
  S attach *
 | 
						|
  execsql { 
 | 
						|
    CREATE TABLE t1(a, b, PRIMARY KEY(a)); 
 | 
						|
    INSERT INTO t1 VALUES(1, 2);
 | 
						|
    INSERT INTO t1 VALUES(3, 4);
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						|
    INSERT INTO t1 VALUES(5, 6);
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						|
  }
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  set ::changeset [S changeset]
 | 
						|
  S delete
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						|
} {}
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						|
 | 
						|
set expected [normalize_list {
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  {INSERT t1 0 X. {} {i 1 i 2}} 
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  {INSERT t1 0 X. {} {i 3 i 4}} 
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  {INSERT t1 0 X. {} {i 5 i 6}}
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}]
 | 
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do_faultsim_test 8.1 -faults oom* -body {
 | 
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  set ::res [list]
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  sqlite3session_foreach -next v $::changeset { lappend ::res $v }
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						|
  normalize_list $::res
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						|
} -test {
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  faultsim_test_result [list 0 $::expected] {1 SQLITE_NOMEM}
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						|
}
 | 
						|
do_faultsim_test 8.2 -faults oom* -body {
 | 
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  set ::res [list]
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						|
  sqlite3session_foreach v $::changeset { lappend ::res $v }
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						|
  normalize_list $::res
 | 
						|
} -test {
 | 
						|
  faultsim_test_result [list 0 $::expected] {1 SQLITE_NOMEM}
 | 
						|
}
 | 
						|
 | 
						|
faultsim_delete_and_reopen
 | 
						|
do_test 9.1.prep {
 | 
						|
  execsql { 
 | 
						|
    PRAGMA encoding = 'utf16';
 | 
						|
    CREATE TABLE t1(a PRIMARY KEY, b);
 | 
						|
  }
 | 
						|
} {}
 | 
						|
faultsim_save_and_close
 | 
						|
 | 
						|
set answers [list {0 {}} {1 SQLITE_NOMEM} \
 | 
						|
                  {1 {callback requested query abort}} \
 | 
						|
                  {1 {abort due to ROLLBACK}}]
 | 
						|
do_faultsim_test 9.1 -faults oom-transient -prep {
 | 
						|
  catch { unset ::c }
 | 
						|
  faultsim_restore_and_reopen
 | 
						|
  sqlite3session S db main
 | 
						|
  S attach *
 | 
						|
} -body {
 | 
						|
  execsql {
 | 
						|
    INSERT INTO t1 VALUES('abcdefghijklmnopqrstuv', 'ABCDEFGHIJKLMNOPQRSTUV');
 | 
						|
  }
 | 
						|
  set ::c [S changeset]
 | 
						|
  set {} {}
 | 
						|
} -test {
 | 
						|
  S delete
 | 
						|
  eval faultsim_test_result $::answers
 | 
						|
  if {[info exists ::c]} {
 | 
						|
    set expected [normalize_list {
 | 
						|
      {INSERT t1 0 X. {} {t abcdefghijklmnopqrstuv t ABCDEFGHIJKLMNOPQRSTUV}}
 | 
						|
    }]
 | 
						|
    if { [changeset_to_list $::c] != $expected } {
 | 
						|
      error "changeset mismatch"
 | 
						|
    }
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
faultsim_delete_and_reopen
 | 
						|
do_test 9.2.prep {
 | 
						|
  execsql { 
 | 
						|
    PRAGMA encoding = 'utf16';
 | 
						|
    CREATE TABLE t1(a PRIMARY KEY, b);
 | 
						|
    INSERT INTO t1 VALUES('abcdefghij', 'ABCDEFGHIJKLMNOPQRSTUV');
 | 
						|
  }
 | 
						|
} {}
 | 
						|
faultsim_save_and_close
 | 
						|
 | 
						|
set answers [list {0 {}} {1 SQLITE_NOMEM} \
 | 
						|
                  {1 {callback requested query abort}} \
 | 
						|
                  {1 {abort due to ROLLBACK}}]
 | 
						|
do_faultsim_test 9.2 -faults oom-transient -prep {
 | 
						|
  catch { unset ::c }
 | 
						|
  faultsim_restore_and_reopen
 | 
						|
  sqlite3session S db main
 | 
						|
  S attach *
 | 
						|
} -body {
 | 
						|
  execsql {
 | 
						|
    UPDATE t1 SET b = 'xyz';
 | 
						|
  }
 | 
						|
  set ::c [S changeset]
 | 
						|
  set {} {}
 | 
						|
} -test {
 | 
						|
  S delete
 | 
						|
  eval faultsim_test_result $::answers
 | 
						|
  if {[info exists ::c]} {
 | 
						|
    set expected [normalize_list {
 | 
						|
      {UPDATE t1 0 X. {t abcdefghij t ABCDEFGHIJKLMNOPQRSTUV} {{} {} t xyz}}
 | 
						|
    }]
 | 
						|
    if { [changeset_to_list $::c] != $expected } {
 | 
						|
      error "changeset mismatch"
 | 
						|
    }
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
#-------------------------------------------------------------------------
 | 
						|
# Test that if a conflict-handler encounters an OOM in 
 | 
						|
# sqlite3_value_text() but goes on to return SQLITE_CHANGESET_REPLACE
 | 
						|
# anyway, the OOM is picked up by the sessions module.
 | 
						|
set bigstr [string repeat abcdefghij 100]
 | 
						|
faultsim_delete_and_reopen
 | 
						|
do_test 10.prep.1  {
 | 
						|
  execsql {
 | 
						|
    CREATE TABLE t1(a PRIMARY KEY, b);
 | 
						|
    INSERT INTO t1 VALUES($bigstr, $bigstr);
 | 
						|
  }
 | 
						|
 | 
						|
  sqlite3session S db main
 | 
						|
  S attach *
 | 
						|
  execsql { UPDATE t1 SET b = b||'x' }
 | 
						|
  set C [S changeset]
 | 
						|
  S delete
 | 
						|
  execsql { UPDATE t1 SET b = b||'xyz' }
 | 
						|
} {}
 | 
						|
faultsim_save_and_close
 | 
						|
 | 
						|
faultsim_restore_and_reopen
 | 
						|
do_test 10.prep.2  {
 | 
						|
  proc xConflict {args} { return "ABORT" }
 | 
						|
  list [catch { sqlite3changeset_apply db $C xConflict } msg] $msg
 | 
						|
} {1 SQLITE_ABORT}
 | 
						|
do_execsql_test 10.prep.3 { SELECT b=$bigstr||'x' FROM t1 } 0
 | 
						|
do_test 10.prep.4  {
 | 
						|
  proc xConflict {args} { return "REPLACE" }
 | 
						|
  list [catch { sqlite3changeset_apply db $C xConflict } msg] $msg
 | 
						|
} {0 {}}
 | 
						|
do_execsql_test 10.prep.5 { SELECT b=$bigstr||'x' FROM t1 } 1
 | 
						|
db close
 | 
						|
 | 
						|
do_faultsim_test 10 -faults oom-tra* -prep {
 | 
						|
  faultsim_restore_and_reopen
 | 
						|
} -body {
 | 
						|
  sqlite3changeset_apply_replace_all db $::C 
 | 
						|
} -test {
 | 
						|
  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
 | 
						|
  if {$testrc==0} {
 | 
						|
    if {[db one {SELECT b=$bigstr||'x' FROM t1}]==0} {
 | 
						|
      error "data does not look right"
 | 
						|
    }
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
#-------------------------------------------------------------------------
 | 
						|
# Test an OOM with an sqlite3changeset_apply() filter callback.
 | 
						|
#
 | 
						|
reset_db
 | 
						|
do_test 11.prep {
 | 
						|
  execsql {
 | 
						|
    CREATE TABLE t1(a PRIMARY KEY, b);
 | 
						|
    CREATE TABLE t2(x PRIMARY KEY, y);
 | 
						|
    BEGIN;
 | 
						|
  }
 | 
						|
 | 
						|
  set ::cs [changeset_from_sql { 
 | 
						|
    INSERT INTO t1 VALUES(1, 2);
 | 
						|
    INSERT INTO t2 VALUES('x', 'y');
 | 
						|
  }]
 | 
						|
 | 
						|
  execsql ROLLBACK
 | 
						|
  set {} {}
 | 
						|
} {}
 | 
						|
 | 
						|
proc filter {x} { return [string equal t1 $x] } 
 | 
						|
faultsim_save_and_close
 | 
						|
 | 
						|
do_faultsim_test 11 -faults oom-tra* -prep {
 | 
						|
  faultsim_restore_and_reopen
 | 
						|
} -body {
 | 
						|
  sqlite3changeset_apply db $::cs {} filter
 | 
						|
} -test {
 | 
						|
  faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
 | 
						|
  if {$testrc==0} {
 | 
						|
    if {[db eval {SELECT * FROM t1 UNION ALL SELECT * FROM t2}] != "1 2"} {
 | 
						|
      error "data does not look right"
 | 
						|
    }
 | 
						|
  }
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
finish_test
 |