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

     1  # 2008 August 01
     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  # Tests for the lookaside memory allocator.
    13  #
    14  # $Id: lookaside.test,v 1.10 2009/04/09 01:23:49 drh Exp $
    15  
    16  set testdir [file dirname $argv0]
    17  source $testdir/tester.tcl
    18  
    19  ifcapable !lookaside {
    20    finish_test
    21    return
    22  }
    23  
    24  # The tests in this file configure the lookaside allocator after a 
    25  # connection is opened. This will not work if there is any "presql"
    26  # configured (SQL run within the [sqlite3] wrapper in tester.tcl).
    27  if {[info exists ::G(perm:presql)]} {
    28    finish_test
    29    return
    30  }
    31  
    32  test_set_config_pagecache 0 0
    33  
    34  catch {db close}
    35  sqlite3_shutdown
    36  sqlite3_initialize
    37  autoinstall_test_functions
    38  sqlite3 db test.db
    39  
    40  # Make sure sqlite3_db_config() and sqlite3_db_status are working.
    41  #
    42  do_test lookaside-1.1 {
    43    catch {sqlite3_config_error db}
    44  } {0}
    45  
    46  do_test lookaside-1.2 {
    47    sqlite3_db_config_lookaside db 1 18 18
    48  } {0}
    49  do_test lookaside-1.3.1 {
    50    sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0
    51  } {0 0 0}
    52  do_test lookaside-1.3.2 {
    53    sqlite3_db_status db DBSTATUS_LOOKASIDE_HIT 0
    54  } {0 0 0}
    55  do_test lookaside-1.3.3 {
    56    sqlite3_db_status db DBSTATUS_LOOKASIDE_MISS_SIZE 0
    57  } {0 0 0}
    58  do_test lookaside-1.3.4 {
    59    sqlite3_db_status db DBSTATUS_LOOKASIDE_MISS_FULL 0
    60  } {0 0 0}
    61  
    62  do_test lookaside-1.4 {
    63    db eval {CREATE TABLE t1(w,x,y,z);}
    64    foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0] break
    65    set p [lindex [sqlite3_db_status db DBSTATUS_LOOKASIDE_HIT 0] 2]
    66    set q [lindex [sqlite3_db_status db DBSTATUS_LOOKASIDE_MISS_SIZE 0] 2]
    67    set r [lindex [sqlite3_db_status db DBSTATUS_LOOKASIDE_MISS_FULL 0] 2]
    68    expr {$x==0 && $y<$z && $z==18 && $p>0 && $q>0 && $r>0}
    69  } {0}
    70  do_test lookaside-1.5 {
    71    foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 1] break
    72    expr {$x==0 && $y<$z && $z==18}
    73  } {0}
    74  do_test lookaside-1.6 {
    75    foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0] break
    76    expr {$x==0 && $y==$z && $y<18}
    77  } {1}
    78  do_test lookaside-1.7 {
    79    db cache flush
    80    foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0] break
    81    expr {$x==0 && $y==0 && $z<18}
    82  } {1}
    83  do_test lookaside-1.8 {
    84    db cache flush
    85    foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 1] break
    86    expr {$x==0 && $y==0 && $z<18}
    87  } {1}
    88  do_test lookaside-1.9 {
    89    db cache flush
    90    sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0
    91  } {0 0 0}
    92  
    93  do_test lookaside-2.1 {
    94    sqlite3_db_config_lookaside db 0 100 1000
    95  } {0}
    96  do_test lookaside-2.2 {
    97    db eval {CREATE TABLE t2(x);}
    98    foreach {x y z} [sqlite3_db_status db DBSTATUS_LOOKASIDE_USED 0] break
    99    expr {$x==0 && $y<$z && $z>10 && $z<100}
   100  } {1}
   101  do_test lookaside-2.3 {
   102    sqlite3_db_config_lookaside db 0 50 50
   103  } {5}  ;# SQLITE_BUSY
   104  do_test lookaside-2.4 {
   105    db cache flush
   106    sqlite3_db_config_lookaside db 0 50 50
   107  } {0}  ;# SQLITE_OK
   108  do_test lookaside-2.5 {
   109    sqlite3_db_config_lookaside db 0 -1 50
   110  } {0}  ;# SQLITE_OK
   111  do_test lookaside-2.6 {
   112    sqlite3_db_config_lookaside db 0 50 -1
   113  } {0}  ;# SQLITE_OK
   114  
   115  # sqlite3_db_status() with an invalid verb returns an error.
   116  #
   117  do_test lookaside-3.1 {
   118    sqlite3_db_status db 99999 0
   119  } {1 0 0}
   120  
   121  # Test that an invalid verb on sqlite3_config() is detected and
   122  # reported as an error.
   123  #
   124  do_test lookaside-4.1 {
   125    db close
   126    sqlite3_shutdown
   127    catch sqlite3_config_error
   128  } {0}
   129  sqlite3_initialize
   130  autoinstall_test_functions
   131  
   132  test_restore_config_pagecache
   133  finish_test