github.com/jdgcs/sqlite3@v1.12.1-0.20210908114423-bc5f96e4dd51/testdata/tcl/shared7.test (about)

     1  # 2009 April 30
     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  #
    12  # Make sure that attaching the same database multiple times in
    13  # shared cache mode fails.
    14  #
    15  # $Id: shared7.test,v 1.1 2009/04/30 13:30:33 drh Exp $
    16  
    17  set testdir [file dirname $argv0]
    18  source $testdir/tester.tcl
    19  ifcapable !shared_cache { finish_test ; return }
    20  
    21  do_test shared7-1.1 {
    22    set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
    23    sqlite3_enable_shared_cache
    24  } {1}
    25  
    26  # EVIDENCE-OF: R-05098-06501 In shared cache mode, attempting to attach
    27  # the same database file more than once results in an error.
    28  #
    29  do_test shared7-1.2 {
    30    db close
    31    sqlite3 db test.db
    32    db eval {
    33      CREATE TABLE t1(x);
    34    }
    35    catchsql {
    36      ATTACH 'test.db' AS err1;
    37    }
    38  } {1 {database is already attached}}
    39  
    40  do_test shared7-1.3 {
    41    forcedelete test2.db test2.db-journal
    42    db eval {
    43      ATTACH 'test2.db' AS test2;
    44      CREATE TABLE test2.t2(y);
    45    }
    46    catchsql {
    47      ATTACH 'test2.db' AS err2;
    48    }
    49  } {1 {database is already attached}}
    50  do_test shared7-1.4 {
    51    catchsql {
    52      ATTACH 'test.db' AS err1;
    53    }
    54  } {1 {database is already attached}}
    55  
    56  
    57  sqlite3_enable_shared_cache $::enable_shared_cache
    58  finish_test