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sqlite3

    1: # 2011 September 20
    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 sqlite3_stmt_status() function
   13: #
   14: 
   15: set testdir [file dirname $argv0]
   16: source $testdir/tester.tcl
   17: 
   18: set ::testprefix dbstatus2
   19: 
   20: do_execsql_test 1.0 {
   21:   PRAGMA page_size = 1024;
   22:   PRAGMA auto_vacuum = 0;
   23: 
   24:   CREATE TABLE t1(a PRIMARY KEY, b);
   25:   INSERT INTO t1 VALUES(1, randomblob(600));
   26:   INSERT INTO t1 VALUES(2, randomblob(600));
   27:   INSERT INTO t1 VALUES(3, randomblob(600));
   28: }
   29: 
   30: proc db_hit_miss {db {reset 0}} {
   31:   set nHit  [sqlite3_db_status $db CACHE_HIT $reset]
   32:   set nMiss [sqlite3_db_status $db CACHE_MISS $reset]
   33:   list $nHit $nMiss
   34: }
   35: 
   36: do_test 1.1 {
   37:   db close
   38:   sqlite3 db test.db
   39:   expr {[file size test.db] / 1024}
   40: } 6
   41: 
   42: do_test 1.2 {
   43:   execsql { SELECT b FROM t1 WHERE a=2 }
   44:   db_hit_miss db
   45: } {{0 2 0} {0 4 0}}
   46: 
   47: do_test 1.3 { 
   48:   execsql { SELECT b FROM t1 WHERE a=2 }
   49:   db_hit_miss db
   50: } {{0 6 0} {0 4 0}}
   51: 
   52: do_test 1.4 { 
   53:   execsql { SELECT b FROM t1 WHERE a=2 }
   54:   db_hit_miss db
   55: } {{0 10 0} {0 4 0}}
   56: 
   57: do_test 1.5 { 
   58:   db_hit_miss db 1
   59: } {{0 10 0} {0 4 0}}
   60: 
   61: do_test 1.6 { 
   62:   db_hit_miss db 0
   63: } {{0 0 0} {0 0 0}}
   64: 
   65: do_test 1.7 {
   66:   set fd [db incrblob main t1 b 1]
   67:   fconfigure $fd -translation binary
   68:   set len [string length [read $fd]]
   69:   close $fd
   70:   set len
   71: } 600
   72: do_test 1.8 { sqlite3_db_status db CACHE_HIT  0 } {0 2 0}
   73: do_test 1.9 { sqlite3_db_status db CACHE_MISS 0 } {0 1 0}
   74: 
   75:  
   76: finish_test