sl@0: # 2006 January 09
sl@0: #
sl@0: # The author disclaims copyright to this source code.  In place of
sl@0: # a legal notice, here is a blessing:
sl@0: #
sl@0: #    May you do good and not evil.
sl@0: #    May you find forgiveness for yourself and forgive others.
sl@0: #    May you share freely, never taking more than you give.
sl@0: #
sl@0: #***********************************************************************
sl@0: # This file implements regression tests for SQLite library.  The
sl@0: # focus of this script is testing the server mode of SQLite.
sl@0: #
sl@0: # This file is derived from thread1.test
sl@0: #
sl@0: # $Id: server1.test,v 1.5 2007/08/29 18:20:17 drh Exp $
sl@0: 
sl@0: 
sl@0: set testdir [file dirname $argv0]
sl@0: source $testdir/tester.tcl
sl@0: 
sl@0: # Skip this whole file if the server testing code is not enabled
sl@0: #
sl@0: if {[llength [info command client_step]]==0 || [sqlite3 -has-codec]} {
sl@0:   finish_test
sl@0:   return
sl@0: }
sl@0: 
sl@0: # The sample server implementation does not work right when memory
sl@0: # management is enabled.
sl@0: #
sl@0: ifcapable memorymanage {
sl@0:   finish_test
sl@0:   return
sl@0: }
sl@0: 
sl@0: # Create some data to work with
sl@0: #
sl@0: do_test server1-1.1 {
sl@0:   execsql {
sl@0:     CREATE TABLE t1(a,b);
sl@0:     INSERT INTO t1 VALUES(1,'abcdefgh');
sl@0:     INSERT INTO t1 SELECT a+1, b||b FROM t1;
sl@0:     INSERT INTO t1 SELECT a+2, b||b FROM t1;
sl@0:     INSERT INTO t1 SELECT a+4, b||b FROM t1;
sl@0:     SELECT count(*), max(length(b)) FROM t1;
sl@0:   }
sl@0: } {8 64}
sl@0: 
sl@0: # Interleave two threads on read access.  Then make sure a third
sl@0: # thread can write the database.  In other words:
sl@0: #
sl@0: #    read-lock A
sl@0: #    read-lock B
sl@0: #    unlock A
sl@0: #    unlock B
sl@0: #    write-lock C
sl@0: #
sl@0: do_test server1-1.2 {
sl@0:   client_create A test.db
sl@0:   client_create B test.db
sl@0:   client_create C test.db
sl@0:   client_compile A {SELECT a FROM t1}
sl@0:   client_step A
sl@0:   client_result A
sl@0: } SQLITE_ROW
sl@0: do_test server1-1.3 {
sl@0:   client_argc A
sl@0: } 1
sl@0: do_test server1-1.4 {
sl@0:   client_argv A 0
sl@0: } 1
sl@0: do_test server1-1.5 {
sl@0:   client_compile B {SELECT b FROM t1}
sl@0:   client_step B
sl@0:   client_result B
sl@0: } SQLITE_ROW
sl@0: do_test server1-1.6 {
sl@0:   client_argc B
sl@0: } 1
sl@0: do_test server1-1.7 {
sl@0:   client_argv B 0
sl@0: } abcdefgh
sl@0: do_test server1-1.8 {
sl@0:   client_finalize A
sl@0:   client_result A
sl@0: } SQLITE_OK
sl@0: do_test server1-1.9 {
sl@0:   client_finalize B
sl@0:   client_result B
sl@0: } SQLITE_OK
sl@0: do_test server1-1.10 {
sl@0:   client_compile C {CREATE TABLE t2(x,y)}
sl@0:   client_step C
sl@0:   client_result C
sl@0: } SQLITE_DONE
sl@0: do_test server1-1.11 {
sl@0:   client_finalize C
sl@0:   client_result C
sl@0: } SQLITE_OK
sl@0: do_test server1-1.12 {
sl@0:   catchsql {SELECT name FROM sqlite_master}
sl@0:   execsql {SELECT name FROM sqlite_master}
sl@0: } {t1 t2}
sl@0: 
sl@0: 
sl@0: # Read from table t1.  Do not finalize the statement.  This
sl@0: # will leave the lock pending.
sl@0: #
sl@0: do_test server1-2.1 {
sl@0:   client_halt *
sl@0:   client_create A test.db
sl@0:   client_compile A {SELECT a FROM t1}
sl@0:   client_step A
sl@0:   client_result A
sl@0: } SQLITE_ROW
sl@0: 
sl@0: # Read from the same table from another thread.  This is allows.
sl@0: #
sl@0: do_test server1-2.2 {
sl@0:   client_create B test.db
sl@0:   client_compile B {SELECT b FROM t1}
sl@0:   client_step B
sl@0:   client_result B
sl@0: } SQLITE_ROW
sl@0: 
sl@0: # Write to a different table from another thread.  This is allowed
sl@0: # because in server mode with a shared cache we have table-level locking.
sl@0: #
sl@0: do_test server1-2.3 {
sl@0:   client_create C test.db
sl@0:   client_compile C {INSERT INTO t2 VALUES(98,99)}
sl@0:   client_step C
sl@0:   client_result C
sl@0:   client_finalize C
sl@0:   client_result C
sl@0: } SQLITE_OK
sl@0: 
sl@0: # But we cannot insert into table t1 because threads A and B have it locked.
sl@0: #
sl@0: do_test server1-2.4 {
sl@0:   client_compile C {INSERT INTO t1 VALUES(98,99)}
sl@0:   client_step C
sl@0:   client_result C
sl@0:   client_finalize C
sl@0:   client_result C
sl@0: } SQLITE_LOCKED
sl@0: do_test server1-2.5 {
sl@0:   client_finalize B
sl@0:   client_wait B
sl@0:   client_compile C {INSERT INTO t1 VALUES(98,99)}
sl@0:   client_step C
sl@0:   client_result C
sl@0:   client_finalize C
sl@0:   client_result C
sl@0: } SQLITE_LOCKED
sl@0: 
sl@0: # Insert into t1 is successful after finishing the other two threads.
sl@0: do_test server1-2.6 {
sl@0:   client_finalize A
sl@0:   client_wait A
sl@0:   client_compile C {INSERT INTO t1 VALUES(98,99)}
sl@0:   client_step C
sl@0:   client_result C
sl@0:   client_finalize C
sl@0:   client_result C
sl@0: } SQLITE_OK
sl@0: 
sl@0: client_halt *   
sl@0: sqlite3_enable_shared_cache 0
sl@0: finish_test