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# 2011 September 20
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#***********************************************************************
#
# Tests for the sqlite3_db_status() function
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set ::testprefix dbstatus2
do_execsql_test 1.0 {
PRAGMA page_size = 1024;
PRAGMA auto_vacuum = 0;
CREATE TABLE t1(a PRIMARY KEY, b);
INSERT INTO t1 VALUES(1, randomblob(600));
INSERT INTO t1 VALUES(2, randomblob(600));
INSERT INTO t1 VALUES(3, randomblob(600));
}
proc db_hit_miss {db {reset 0}} {
set nHit [sqlite3_db_status $db CACHE_HIT $reset]
set nMiss [sqlite3_db_status $db CACHE_MISS $reset]
list $nHit $nMiss
}
proc db_write {db {reset 0}} {
sqlite3_db_status $db CACHE_WRITE $reset
}
do_test 1.1 {
db close
sqlite3 db test.db
execsql { PRAGMA mmap_size = 0 }
expr {[file size test.db] / 1024}
} 6
do_test 1.2 {
execsql { SELECT b FROM t1 WHERE a=2 }
db_hit_miss db
} {{0 2 0} {0 4 0}}
do_test 1.3 {
execsql { SELECT b FROM t1 WHERE a=2 }
db_hit_miss db
} {{0 6 0} {0 4 0}}
do_test 1.4 {
execsql { SELECT b FROM t1 WHERE a=2 }
db_hit_miss db
} {{0 10 0} {0 4 0}}
do_test 1.5 {
db_hit_miss db 1
} {{0 10 0} {0 4 0}}
do_test 1.6 {
db_hit_miss db 0
} {{0 0 0} {0 0 0}}
do_test 1.7 {
set fd [db incrblob main t1 b 1]
fconfigure $fd -translation binary
set len [string length [read $fd]]
close $fd
set len
} 600
do_test 1.8 { sqlite3_db_status db CACHE_HIT 0 } {0 2 0}
do_test 1.9 { sqlite3_db_status db CACHE_MISS 0 } {0 1 0}
do_test 2.1 { db_write db } {0 0 0}
do_test 2.2 {
execsql { INSERT INTO t1 VALUES(4, randomblob(600)) }
db_write db
} {0 4 0}
do_test 2.3 { db_write db 1 } {0 4 0}
do_test 2.4 { db_write db 0 } {0 0 0}
do_test 2.5 { db_write db 1 } {0 0 0}
ifcapable wal {
do_test 2.6 {
execsql { PRAGMA journal_mode = WAL }
db_write db 1
} {0 1 0}
}
do_test 2.7 {
execsql { INSERT INTO t1 VALUES(5, randomblob(600)) }
db_write db
} {0 4 0}
do_test 2.8 { db_write db 1 } {0 4 0}
do_test 2.9 { db_write db 0 } {0 0 0}
finish_test
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