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

     1  # 2010 August 2
     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.  The
    12  # focus of this file is testing the operation of the library in
    13  # "PRAGMA journal_mode=WAL" mode with shared-cache turned on.
    14  #
    15  
    16  set testdir [file dirname $argv0]
    17  source $testdir/tester.tcl
    18  
    19  ifcapable !wal {finish_test ; return }
    20  
    21  db close
    22  set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
    23  
    24  sqlite3 db  test.db
    25  sqlite3 db2 test.db
    26  
    27  do_test walshared-1.0 {
    28    execsql {
    29      PRAGMA cache_size = 10;
    30      PRAGMA journal_mode = WAL;
    31      CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
    32      INSERT INTO t1 VALUES(randomblob(100), randomblob(200));
    33    }
    34  } {wal}
    35  
    36  do_test walshared-1.1 {
    37    execsql {
    38      BEGIN;
    39        INSERT INTO t1 VALUES(randomblob(100), randomblob(200));
    40        INSERT INTO t1 SELECT randomblob(100), randomblob(200) FROM t1;
    41        INSERT INTO t1 SELECT randomblob(100), randomblob(200) FROM t1;
    42        INSERT INTO t1 SELECT randomblob(100), randomblob(200) FROM t1;
    43    }
    44  } {}
    45  
    46  do_test walshared-1.2 {
    47    catchsql { PRAGMA wal_checkpoint }
    48  } {1 {database table is locked}}
    49  
    50  do_test walshared-1.3 {
    51    catchsql { PRAGMA wal_checkpoint } db2
    52  } {1 {database table is locked}}
    53  
    54  do_test walshared-1.4 {
    55    execsql { COMMIT }
    56    execsql { PRAGMA integrity_check } db2
    57  } {ok}
    58  
    59  
    60  
    61  sqlite3_enable_shared_cache $::enable_shared_cache
    62  finish_test