[sql] Remove SQLite 3.10.2 reference directory.

third_party/sqlite/sqlite-src-3100200/test/e_wal.test

-# 2011 May 06
-#
-# 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.
-#
-#***********************************************************************
-#
-
-set testdir [file dirname $argv0]
-source $testdir/tester.tcl
-set testprefix e_wal
-
-db close
-testvfs oldvfs -iversion 1
-
-
-# EVIDENCE-OF: R-58297-14483 WAL databases can be created, read, and
-# written even if shared memory is unavailable as long as the
-# locking_mode is set to EXCLUSIVE before the first attempted access.
-#
-# EVIDENCE-OF: R-00449-33772 This feature allows WAL databases to be
-# created, read, and written by legacy VFSes that lack the "version 2"
-# shared-memory methods xShmMap, xShmLock, xShmBarrier, and xShmUnmap on
-# the sqlite3_io_methods object.
-#
-# 1.1: "create" tests.
-# 1.2: "read" tests.
-# 1.3: "write" tests.
-#
-# All three done with VFS "oldvfs", which has iVersion==1 and so does
-# not support shared memory.
-# 
-sqlite3 db test.db -vfs oldvfs
-do_execsql_test 1.1.1 {
-  PRAGMA journal_mode = WAL;
-} {delete}
-do_execsql_test 1.1.2 {
-  PRAGMA locking_mode = EXCLUSIVE;
-  PRAGMA journal_mode = WAL;
-} {exclusive wal}
-do_execsql_test 1.1.3 {
-  CREATE TABLE t1(x, y);
-  INSERT INTO t1 VALUES(1, 2);
-} {}
-do_test 1.1.4 {
-  list [file exists test.db-shm] [file exists test.db-wal]
-} {0 1}
-
-do_test 1.2.1 {
-  db close
-  sqlite3 db test.db -vfs oldvfs
-  catchsql { SELECT * FROM t1 }
-} {1 {unable to open database file}}
-do_test 1.2.2 {
-  execsql { PRAGMA locking_mode = EXCLUSIVE }
-  execsql { SELECT * FROM t1 }
-} {1 2}
-do_test 1.2.3 {
-  list [file exists test.db-shm] [file exists test.db-wal]
-} {0 1}
-
-do_test 1.3.1 {
-  db close
-  sqlite3 db test.db -vfs oldvfs
-  catchsql { INSERT INTO t1 VALUES(3, 4) }
-} {1 {unable to open database file}}
-do_test 1.3.2 {
-  execsql { PRAGMA locking_mode = EXCLUSIVE }
-  execsql { INSERT INTO t1 VALUES(3, 4) }
-  execsql { SELECT * FROM t1 }
-} {1 2 3 4}
-do_test 1.3.3 {
-  list [file exists test.db-shm] [file exists test.db-wal]
-} {0 1}
-
-# EVIDENCE-OF: R-31969-57825 If EXCLUSIVE locking mode is set prior to
-# the first WAL-mode database access, then SQLite never attempts to call
-# any of the shared-memory methods and hence no shared-memory wal-index
-# is ever created.
-#
-db close
-sqlite3 db test.db
-do_execsql_test 2.1.1 {
-  PRAGMA locking_mode = EXCLUSIVE;
-  SELECT * FROM t1;
-} {exclusive 1 2 3 4}
-do_test 2.1.2 {
-  list [file exists test.db-shm] [file exists test.db-wal]
-} {0 1}
-
-# EVIDENCE-OF: R-36328-16367 In that case, the database connection
-# remains in EXCLUSIVE mode as long as the journal mode is WAL; attempts
-# to change the locking mode using "PRAGMA locking_mode=NORMAL;" are
-# no-ops.
-#
-do_execsql_test 2.2.1 {
-  PRAGMA locking_mode = NORMAL;
-  SELECT * FROM t1;
-} {exclusive 1 2 3 4}
-do_test 2.2.2 {
-  sqlite3 db2 test.db
-  catchsql {SELECT * FROM t1} db2
-} {1 {database is locked}}
-db2 close
-
-# EVIDENCE-OF: R-63522-46088 The only way to change out of EXCLUSIVE
-# locking mode is to first change out of WAL journal mode.
-#
-do_execsql_test 2.3.1 {
-  PRAGMA journal_mode = DELETE;
-  SELECT * FROM t1;
-} {delete 1 2 3 4}
-do_test 2.3.2 {
-  sqlite3 db2 test.db
-  catchsql {SELECT * FROM t1} db2
-} {1 {database is locked}}
-do_execsql_test 2.3.3 {
-  PRAGMA locking_mode = NORMAL;
-  SELECT * FROM t1;
-} {normal 1 2 3 4}
-do_test 2.3.4 {
-  sqlite3 db2 test.db
-  catchsql {SELECT * FROM t1} db2
-} {0 {1 2 3 4}}
-db2 close
-db close
-
-
-# EVIDENCE-OF: R-57239-11845 If NORMAL locking mode is in effect for the
-# first WAL-mode database access, then the shared-memory wal-index is
-# created.
-#
-do_test 3.0 {
-  sqlite3 db test.db
-  execsql { PRAGMA journal_mode = WAL }
-  db close
-} {}
-do_test 3.1 {
-  sqlite3 db test.db
-  execsql { SELECT * FROM t1 }
-  list [file exists test.db-shm] [file exists test.db-wal]
-} {1 1}
-
-# EVIDENCE-OF: R-13779-07711 As long as exactly one connection is using
-# a shared-memory wal-index, the locking mode can be changed freely
-# between NORMAL and EXCLUSIVE.
-#
-do_execsql_test 3.2.1 {
-  PRAGMA locking_mode = EXCLUSIVE;
-  PRAGMA locking_mode = NORMAL;
-  PRAGMA locking_mode = EXCLUSIVE;
-  INSERT INTO t1 VALUES(5, 6);
-} {exclusive normal exclusive}
-do_test 3.2.2 {
-  sqlite3 db2 test.db
-  catchsql { SELECT * FROM t1 } db2
-} {1 {database is locked}}
-
-# EVIDENCE-OF: R-10993-11647 It is only when the shared-memory wal-index
-# is omitted, when the locking mode is EXCLUSIVE prior to the first
-# WAL-mode database access, that the locking mode is stuck in EXCLUSIVE.
-#
-do_execsql_test 3.2.3 {
-  PRAGMA locking_mode = NORMAL;
-  SELECT * FROM t1;
-} {normal 1 2 3 4 5 6}
-do_test 3.2.4 {
-  catchsql { SELECT * FROM t1 } db2
-} {0 {1 2 3 4 5 6}}
-
-do_catchsql_test 3.2.5 {
-  PRAGMA locking_mode = EXCLUSIVE;
-  INSERT INTO t1 VALUES(7, 8);
-} {1 {database is locked}}
-
-db2 close
-
-# EVIDENCE-OF: R-46197-42811 This means that the underlying VFS must
-# support the "version 2" shared-memory.
-#
-# EVIDENCE-OF: R-55316-21772 If the VFS does not support shared-memory
-# methods, then the attempt to open a database that is already in WAL
-# mode, or the attempt convert a database into WAL mode, will fail.
-#
-db close
-do_test 3.4.1 {
-  sqlite3 db test.db -vfs oldvfs
-  catchsql { SELECT * FROM t1 }
-} {1 {unable to open database file}}
-db close
-do_test 3.4.2 {
-  forcedelete test.db2
-  sqlite3 db test.db2 -vfs oldvfs
-  catchsql { PRAGMA journal_mode = WAL }
-} {0 delete}
-db close
-
-
-# EVIDENCE-OF: R-45540-25505 To prevent older versions of SQLite (prior
-# to version 3.7.0, 2010-07-22) from trying to recover a WAL-mode
-# database (and making matters worse) the database file format version
-# numbers (bytes 18 and 19 in the database header) are increased from 1
-# to 2 in WAL mode.
-#
-reset_db
-do_execsql_test 4.1.1 { CREATE TABLE t1(x, y) }
-do_test 4.1.2 { hexio_read test.db 18 2 } {0101}
-do_execsql_test 4.1.3 { PRAGMA journal_mode = wAL } {wal}
-do_test 4.1.4 { hexio_read test.db 18 2 } {0202}
-
-
-# EVIDENCE-OF: R-02535-05811 One can explicitly change out of WAL mode
-# using a pragma such as this: PRAGMA journal_mode=DELETE;
-#
-do_execsql_test 4.2.1 { INSERT INTO t1 VALUES(1, 1); } {}
-do_test 4.2.2 { file exists test.db-wal } {1}
-do_execsql_test 4.2.3 { PRAGMA journal_mode = delete } {delete}
-do_test 4.2.4 { file exists test.db-wal } {0}
-
-# EVIDENCE-OF: R-60175-02388 Deliberately changing out of WAL mode
-# changes the database file format version numbers back to 1 so that
-# older versions of SQLite can once again access the database file.
-#
-do_test 4.3 { hexio_read test.db 18 2 } {0101}
-
-finish_test