[sqlite] Remove obsolete reference version 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/test/lock4.test

-# 2007 April 6
-#
-# 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 database locks.
-#
-# $Id: lock4.test,v 1.10 2009/05/06 00:52:41 drh Exp $
-
-
-set testdir [file dirname $argv0]
-source $testdir/tester.tcl
-
-do_not_use_codec
-
-# Initialize the test.db database so that it is non-empty
-#
-do_test lock4-1.1 {
-  db eval {
-     PRAGMA auto_vacuum=OFF;
-     CREATE TABLE t1(x);
-  }
-  forcedelete test2.db test2.db-journal
-  sqlite3 db2 test2.db
-  db2 eval {
-     PRAGMA auto_vacuum=OFF;
-     CREATE TABLE t2(x)
-  }
-  db2 close
-  list [file size test.db] [file size test2.db]
-} {2048 2048}
-
-# Create a script to drive a separate process that will
-#
-#     1.  Create a second database test2.db
-#     2.  Get an exclusive lock on test2.db
-#     3.  Add an entry to test.db in table t1, waiting as necessary.
-#     4.  Commit the change to test2.db.
-#
-# Meanwhile, this process will:
-# 
-#     A.  Get an exclusive lock on test.db
-#     B.  Attempt to read from test2.db but get an SQLITE_BUSY error.
-#     C.  Commit the changes to test.db thus alloing the other process
-#         to continue.
-#
-do_test lock4-1.2 {
- 
-  # Create a script for the second process to run.
-  #
-  set out [open test2-script.tcl w]
-  puts $out "sqlite3_test_control_pending_byte [set sqlite_pending_byte]"
-  puts $out {
-     sqlite3 db2 test2.db
-     db2 eval {
-        BEGIN;
-        INSERT INTO t2 VALUES(2);
-     }
-     sqlite3 db test.db
-     db timeout 1000000
-     db eval {
-        INSERT INTO t1 VALUES(2);
-     }
-     db close
-     db2 eval COMMIT
-     exit
-  }
-  close $out
-
-  # Begin a transaction on test.db.
-  db eval {
-     BEGIN EXCLUSIVE;
-     INSERT INTO t1 VALUES(1);
-  }
-
-  # Kick off the second process.
-  exec [info nameofexec] ./test2-script.tcl &
-
-  # Wait until the second process has started its transaction on test2.db.
-  while {![file exists test2.db-journal]} {
-    after 10
-  }
-
-  # Try to write to test2.db. We are locked out.
-  sqlite3 db2 test2.db
-  catchsql {
-    INSERT INTO t2 VALUES(1)
-  } db2
-} {1 {database is locked}}
-do_test lock4-1.3 {
-  db eval {
-     COMMIT;
-  }
-  while {[file exists test2.db-journal]} {
-    after 10
-  }
-  # The other process has committed its transaction on test2.db by 
-  # deleting the journal file. But it might retain the lock for a 
-  # fraction longer 
-  #
-  after 25
-  db2 eval {
-     SELECT * FROM t2
-  }
-} {2}
-
-    
-do_test lock4-999.1 {
-  rename db2 {}
-} {}
-
-finish_test