# 2006 January 09
#
# 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.
#
#***********************************************************************
# This file implements regression tests for SQLite library. The
# focus of this script is testing the server mode of SQLite.
#
# This file is derived from thread1.test
#
# $Id: server1.test,v 1.5 2007/08/29 18:20:17 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
# Skip this whole file if the server testing code is not enabled
#
if {[llength [info command client_step]]==0 || [sqlite3 -has-codec]} {
finish_test
return
}
# The sample server implementation does not work right when memory
# management is enabled.
#
ifcapable (memorymanage||mutex_noop) {
finish_test
return
}
# Create some data to work with
#
do_test server1-1.1 {
execsql {
CREATE TABLE t1(a,b);
INSERT INTO t1 VALUES(1,'abcdefgh');
INSERT INTO t1 SELECT a+1, b||b FROM t1;
INSERT INTO t1 SELECT a+2, b||b FROM t1;
INSERT INTO t1 SELECT a+4, b||b FROM t1;
SELECT count(*), max(length(b)) FROM t1;
}
} {8 64}
# Interleave two threads on read access. Then make sure a third
# thread can write the database. In other words:
#
# read-lock A
# read-lock B
# unlock A
# unlock B
# write-lock C
#
do_test server1-1.2 {
client_create A test.db
client_create B test.db
client_create C test.db
client_compile A {SELECT a FROM t1}
client_step A
client_result A
} SQLITE_ROW
do_test server1-1.3 {
client_argc A
} 1
do_test server1-1.4 {
client_argv A 0
} 1
do_test server1-1.5 {
client_compile B {SELECT b FROM t1}
client_step B
client_result B
} SQLITE_ROW
do_test server1-1.6 {
client_argc B
} 1
do_test server1-1.7 {
client_argv B 0
} abcdefgh
do_test server1-1.8 {
client_finalize A
client_result A
} SQLITE_OK
do_test server1-1.9 {
client_finalize B
client_result B
} SQLITE_OK
do_test server1-1.10 {
client_compile C {CREATE TABLE t2(x,y)}
client_step C
client_result C
} SQLITE_DONE
do_test server1-1.11 {
client_finalize C
client_result C
} SQLITE_OK
do_test server1-1.12 {
catchsql {SELECT name FROM sqlite_master}
execsql {SELECT name FROM sqlite_master}
} {t1 t2}
# Read from table t1. Do not finalize the statement. This
# will leave the lock pending.
#
do_test server1-2.1 {
client_halt *
client_create A test.db
client_compile A {SELECT a FROM t1}
client_step A
client_result A
} SQLITE_ROW
# Read from the same table from another thread. This is allows.
#
do_test server1-2.2 {
client_create B test.db
client_compile B {SELECT b FROM t1}
client_step B
client_result B
} SQLITE_ROW
# Write to a different table from another thread. This is allowed
# because in server mode with a shared cache we have table-level locking.
#
do_test server1-2.3 {
client_create C test.db
client_compile C {INSERT INTO t2 VALUES(98,99)}
client_step C
client_result C
client_finalize C
client_result C
} SQLITE_OK
# But we cannot insert into table t1 because threads A and B have it locked.
#
do_test server1-2.4 {
client_compile C {INSERT INTO t1 VALUES(98,99)}
client_step C
client_result C
client_finalize C
client_result C
} SQLITE_LOCKED
do_test server1-2.5 {
client_finalize B
client_wait B
client_compile C {INSERT INTO t1 VALUES(98,99)}
client_step C
client_result C
client_finalize C
client_result C
} SQLITE_LOCKED
# Insert into t1 is successful after finishing the other two threads.
do_test server1-2.6 {
client_finalize A
client_wait A
client_compile C {INSERT INTO t1 VALUES(98,99)}
client_step C
client_result C
client_finalize C
client_result C
} SQLITE_OK
client_halt *
sqlite3_enable_shared_cache 0
finish_test