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			248 lines
		
	
	
		
			7.0 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			248 lines
		
	
	
		
			7.0 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
# 2011 March 28
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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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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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source $testdir/lock_common.tcl
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source $testdir/malloc_common.tcl
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if {[llength [info commands test_syscall]]==0} {
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  finish_test
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  return
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} 
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set testprefix sysfault
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set FAULTSIM(vfsfault-transient) [list             \
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  -injectinstall   vfsfault_install                \
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  -injectstart     vfsfault_injectstart_t          \
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  -injectstop      vfsfault_injectstop             \
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  -injecterrlist   {}                              \
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  -injectuninstall {test_syscall uninstall}        \
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]
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set FAULTSIM(vfsfault-persistent) [list            \
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  -injectinstall   vfsfault_install                \
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  -injectstart     vfsfault_injectstart_p          \
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  -injectstop      vfsfault_injectstop             \
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  -injecterrlist   {}                              \
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  -injectuninstall {test_syscall uninstall}        \
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]
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proc vfsfault_injectstart_t {iFail} { test_syscall fault $iFail 0 }
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proc vfsfault_injectstart_p {iFail} { test_syscall fault $iFail 1 }
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proc vfsfault_injectstop    {}      { test_syscall fault }
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faultsim_save_and_close
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set open_and_write_body {
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  sqlite3 db test.db
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  db eval {
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    CREATE TABLE t1(a, b);
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    INSERT INTO t1 VALUES(1, 2);
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    PRAGMA journal_mode = WAL;
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    INSERT INTO t1 VALUES(3, 4);
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    SELECT * FROM t1;
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    CREATE TEMP TABLE t2(x);
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    INSERT INTO t2 VALUES('y');
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  }
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}
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proc vfsfault_install {} { test_syscall install {open getcwd} }
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do_faultsim_test 1 -faults vfsfault-* -prep {
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  faultsim_restore
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} -body $open_and_write_body -test {
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  faultsim_test_result {0 {wal 1 2 3 4}}       \
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    {1 {unable to open database file}}         \
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    {1 {attempt to write a readonly database}}
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}
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#-------------------------------------------------------------------------
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# Errors in the fstat() function when opening and writing a file. Cases
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# where fstat() fails and sets errno to ENOMEM and EOVERFLOW are both
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# tested. EOVERFLOW is interpreted as meaning that a file on disk is
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# too large to be opened by the OS.
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#
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foreach {tn errno errlist} {
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  1 ENOMEM       {{disk I/O error}}
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  2 EOVERFLOW    {{disk I/O error} {large file support is disabled}}
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} {
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  proc vfsfault_install {} { test_syscall install fstat }
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  set errs [list]
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  foreach e $errlist { lappend errs [list 1 $e] }
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  do_faultsim_test 1.2.$tn -faults vfsfault-* -prep {
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    faultsim_restore
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  } -body "
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    test_syscall errno fstat $errno
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    $open_and_write_body 
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  " -test "
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    faultsim_test_result {0 {wal 1 2 3 4}} $errs
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  "
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}
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#-------------------------------------------------------------------------
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# Various errors in locking functions. 
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#
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foreach vfs {unix unix-excl} {
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  foreach {tn errno errlist} {
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    1 EAGAIN       {{database is locked} {disk I/O error}}
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    2 ETIMEDOUT    {{database is locked} {disk I/O error}}
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    3 EBUSY        {{database is locked} {disk I/O error}}
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    4 EINTR        {{database is locked} {disk I/O error}}
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    5 ENOLCK       {{database is locked} {disk I/O error}}
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    6 EACCES       {{database is locked} {disk I/O error}}
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    7 EPERM        {{access permission denied} {disk I/O error}}
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    8 EDEADLK      {{disk I/O error}}
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    9 ENOMEM       {{disk I/O error}}
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  } {
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    proc vfsfault_install {} { test_syscall install fcntl }
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    set errs [list]
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    foreach e $errlist { lappend errs [list 1 $e] }
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    set body [string map [list %VFS% $vfs] {
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      sqlite3 db test.db
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      db eval {
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        CREATE TABLE t1(a, b);
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        INSERT INTO t1 VALUES(1, 2);
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      }
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      set fd [open test.db-journal w]
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      puts $fd "hello world"
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      close $fd
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      sqlite3 db test.db -vfs %VFS%
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      db eval {
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        SELECT * FROM t1;
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      }
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    }]
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    do_faultsim_test 1.3.$vfs.$tn -faults vfsfault-* -prep {
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      faultsim_restore
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    } -body "
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      test_syscall errno fcntl $errno
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      $body
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    " -test "
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      faultsim_test_result {0 {1 2}} $errs
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    "
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  }
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}
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#-------------------------------------------------------------------------
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# Check that a single EINTR error does not affect processing.
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#
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proc vfsfault_install {} { 
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  test_syscall reset
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  test_syscall install {open ftruncate close read pread pread64 write fallocate}
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}
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forcedelete test.db test.db2
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sqlite3 db test.db
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do_test 2.setup {
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  execsql {
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    CREATE TABLE t1(a, b, c, PRIMARY KEY(a));
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    INSERT INTO t1 VALUES('abc', 'def', 'ghi');
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    ATTACH 'test.db2' AS 'aux';
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    CREATE TABLE aux.t2(x);
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    INSERT INTO t2 VALUES(1);
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  }
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  faultsim_save_and_close
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} {}
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do_faultsim_test 2.1 -faults vfsfault-transient -prep {
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  catch { db close }
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  faultsim_restore
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} -body {
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  test_syscall errno open      EINTR
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  test_syscall errno ftruncate EINTR
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  test_syscall errno close     EINTR
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  test_syscall errno read      EINTR
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  test_syscall errno pread     EINTR
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  test_syscall errno pread64   EINTR
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  test_syscall errno write     EINTR
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  test_syscall errno fallocate EINTR
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  sqlite3 db test.db
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  file_control_chunksize_test db main 8192
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  set res [db eval {
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    ATTACH 'test.db2' AS 'aux';
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    SELECT * FROM t1;
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    PRAGMA journal_mode = truncate;
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    BEGIN;
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      INSERT INTO t1 VALUES('jkl', 'mno', 'pqr');
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      INSERT INTO t1 VALUES(randomblob(10000), 0, 0);
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      UPDATE t2 SET x = 2;
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    COMMIT;
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    DELETE FROM t1 WHERE length(a)>3;
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    SELECT * FROM t1;
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    SELECT * FROM t2;
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  }]
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  db close
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  set res
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} -test {
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  faultsim_test_result {0 {abc def ghi truncate abc def ghi jkl mno pqr 2}}
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}
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do_faultsim_test 2.2 -faults vfsfault-* -prep {
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  catch { db close }
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  faultsim_restore
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} -body {
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  sqlite3 db test.db
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  set res [db eval {
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    ATTACH 'test.db2' AS 'aux';
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    SELECT * FROM t1;
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    PRAGMA journal_mode = truncate;
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    BEGIN;
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      INSERT INTO t1 VALUES('jkl', 'mno', 'pqr');
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      UPDATE t2 SET x = 2;
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    COMMIT;
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    SELECT * FROM t1;
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    SELECT * FROM t2;
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  }]
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  db close
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  set res
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} -test {
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  faultsim_test_result {0 {abc def ghi truncate abc def ghi jkl mno pqr 2}} \
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    {1 {unable to open database file}}                                      \
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    {1 {unable to open database: test.db2}}                                 \
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    {1 {attempt to write a readonly database}}                              \
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    {1 {disk I/O error}}                                                  
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}
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#-------------------------------------------------------------------------
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proc vfsfault_install {} { 
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  test_syscall reset
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  test_syscall install {fstat fallocate}
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}
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do_faultsim_test 3 -faults vfsfault-* -prep {
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  faultsim_delete_and_reopen
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  file_control_chunksize_test db main 8192
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  execsql {
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    CREATE TABLE t1(a, b);
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    BEGIN;
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      SELECT * FROM t1;
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  }
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} -body {
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  test_syscall errno fstat     EIO
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  test_syscall errno fallocate EIO
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  execsql {
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    INSERT INTO t1 VALUES(randomblob(10000), randomblob(10000));
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    SELECT length(a) + length(b) FROM t1;
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    COMMIT;
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  }
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} -test {
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  faultsim_test_result {0 20000}
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}
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finish_test
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