modernc.org/cc@v1.0.1/v2/testdata/_sqlite/test/tkt3457.test (about)

     1  # 2008 October 29
     2  #
     3  # The author disclaims copyright to this source code.  In place of
     4  # a legal notice, here is a blessing:
     5  #
     6  #    May you do good and not evil.
     7  #    May you find forgiveness for yourself and forgive others.
     8  #    May you share freely, never taking more than you give.
     9  #
    10  #***********************************************************************
    11  # This file implements regression tests for SQLite library.
    12  #
    13  # $Id: tkt3457.test,v 1.3 2009/06/26 07:12:07 danielk1977 Exp $
    14  
    15  set testdir [file dirname $argv0]
    16  source $testdir/tester.tcl
    17  
    18  if {$tcl_platform(platform) != "unix"} {
    19    finish_test
    20    return
    21  }
    22  
    23  #-----------------------------------------------------------------------
    24  # To roll back a hot-journal file, the application needs read and write 
    25  # permission on the journal file in question. The following tests test
    26  # the outcome of trying to rollback a hot-journal file when this is not
    27  # the case.
    28  # 
    29  #   tkt3457-1.2: Application has neither read, nor write permission on
    30  #                the hot-journal file. Result: SQLITE_CANTOPEN.
    31  #                
    32  #   tkt3457-1.3: Application has write but not read permission on
    33  #                the hot-journal file. Result: SQLITE_CANTOPEN.
    34  #
    35  #   tkt3457-1.4: Application has read but not write permission on
    36  #                the hot-journal file. Result: SQLITE_CANTOPEN.
    37  #
    38  #   tkt3457-1.5: Application has read/write permission on the hot-journal 
    39  #                file. Result: SQLITE_OK.
    40  # 
    41  do_test tkt3457-1.1 {
    42    execsql {
    43      CREATE TABLE t1(a, b, c);
    44      INSERT INTO t1 VALUES(1, 2, 3);
    45      BEGIN;
    46      INSERT INTO t1 VALUES(4, 5, 6);
    47    }
    48  
    49    forcecopy test.db bak.db
    50    forcecopy test.db-journal bak.db-journal
    51  
    52    # Fix the first journal-header in the journal-file. Because the
    53    # journal file has not yet been synced, the 8-byte magic string at the
    54    # start of the first journal-header has not been written by SQLite.
    55    # So write it now.
    56    set fd [open bak.db-journal a+]
    57    fconfigure $fd -encoding binary -translation binary
    58    seek $fd 0
    59    puts -nonewline $fd "\xd9\xd5\x05\xf9\x20\xa1\x63\xd7"
    60    close $fd
    61  
    62    execsql COMMIT
    63  } {}
    64  
    65  # Disable fchmod to make sure SQLite itself does not try to change the
    66  # permission bits on us
    67  #
    68  catch {
    69    test_syscall install fchmod
    70    test_syscall fault 1 1
    71  }
    72  
    73  do_test tkt3457-1.2 {
    74    forcecopy bak.db-journal test.db-journal
    75    file attributes test.db-journal -permissions ---------
    76    catchsql { SELECT * FROM t1 }
    77  } {1 {unable to open database file}}
    78  do_test tkt3457-1.3 {
    79    forcecopy bak.db-journal test.db-journal
    80    file attributes test.db-journal -permissions -w--w--w-
    81    catchsql { SELECT * FROM t1 }
    82  } {1 {unable to open database file}}
    83  do_test tkt3457-1.4 {
    84    forcecopy bak.db-journal test.db-journal
    85    file attributes test.db-journal -permissions r--r--r--
    86    catchsql { SELECT * FROM t1 }
    87  } {1 {unable to open database file}}
    88  
    89  do_test tkt3457-1.5 {
    90    forcecopy bak.db-journal test.db-journal
    91    file attributes test.db-journal -permissions rw-rw-rw-
    92    catchsql { SELECT * FROM t1 }
    93  } {0 {1 2 3 4 5 6}}
    94  
    95  # Reenable fchmod
    96  catch {
    97    test_syscall uninstall
    98    test_syscall fault 0 0
    99  }
   100  
   101  finish_test