[sql] Remove SQLite 3.10.2 reference directory.

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

-# 2015 December 7
-#
-# 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 file is the sqlite3_snapshot_xxx() APIs.
-#
-
-set testdir [file dirname $argv0]
-source $testdir/tester.tcl
-ifcapable !snapshot {finish_test; return}
-set testprefix snapshot
-
-#-------------------------------------------------------------------------
-# Check some error conditions in snapshot_get(). It is an error if:
-#
-#  1) snapshot_get() is called on a non-WAL database, or
-#  2) there is an open write transaction on the database.
-#
-do_execsql_test 1.0 {
-  CREATE TABLE t1(a, b);
-  INSERT INTO t1 VALUES(1, 2);
-  INSERT INTO t1 VALUES(3, 4);
-}
-
-do_test 1.1.1 {
-  execsql { BEGIN; SELECT * FROM t1; }
-  list [catch { sqlite3_snapshot_get db main } msg] $msg
-} {1 SQLITE_ERROR}
-do_execsql_test 1.1.2 COMMIT
-
-do_test 1.2.1 {
-  execsql {
-    PRAGMA journal_mode = WAL;
-    BEGIN;
-      INSERT INTO t1 VALUES(5, 6);
-      INSERT INTO t1 VALUES(7, 8);
-  }
-  list [catch { sqlite3_snapshot_get db main } msg] $msg
-} {1 SQLITE_ERROR}
-do_execsql_test 1.3.2 COMMIT
-
-#-------------------------------------------------------------------------
-# Check that a simple case works. Reuse the database created by the
-# block of tests above.
-#
-do_execsql_test 2.1.0 {
-  BEGIN;
-    SELECT * FROM t1;
-} {1 2 3 4 5 6 7 8}
-
-breakpoint
-do_test 2.1.1 {
-  set snapshot [sqlite3_snapshot_get db main]
-  execsql {
-    COMMIT;
-    INSERT INTO t1 VALUES(9, 10);
-    SELECT * FROM t1;
-  }
-} {1 2 3 4 5 6 7 8 9 10}
-
-do_test 2.1.2 {
-  execsql BEGIN
-  sqlite3_snapshot_open db main $snapshot
-  execsql {
-    SELECT * FROM t1;
-  }
-} {1 2 3 4 5 6 7 8}
-
-do_test 2.1.3 {
-  sqlite3_snapshot_free $snapshot
-  execsql COMMIT
-} {}
-
-do_test 2.2.0 {
-  sqlite3 db2 test.db
-  execsql {
-    BEGIN;
-      SELECT * FROM t1;
-  } db2
-} {1 2 3 4 5 6 7 8 9 10}
-
-do_test 2.2.1 {
-  set snapshot [sqlite3_snapshot_get db2 main]
-  execsql {
-    INSERT INTO t1 VALUES(11, 12);
-    SELECT * FROM t1;
-  }
-} {1 2 3 4 5 6 7 8 9 10 11 12}
-
-do_test 2.2.2 {
-  execsql BEGIN
-  sqlite3_snapshot_open db main $snapshot
-  execsql {
-    SELECT * FROM t1;
-  }
-} {1 2 3 4 5 6 7 8 9 10}
-
-do_test 2.2.3 {
-  sqlite3_snapshot_free $snapshot
-  execsql COMMIT
-  execsql COMMIT db2
-  db2 close
-} {}
-
-do_test 2.3.1 {
-  execsql { DELETE FROM t1 WHERE a>6 }
-  set snapshot [sqlite3_snapshot_get db main]
-  execsql {
-    INSERT INTO t1 VALUES('a', 'b');
-    INSERT INTO t1 VALUES('c', 'd');
-    SELECT * FROM t1;
-  }
-} {1 2 3 4 5 6 a b c d}
-do_test 2.3.2 {
-  execsql BEGIN
-  sqlite3_snapshot_open db main $snapshot
-  execsql { SELECT * FROM t1 }
-} {1 2 3 4 5 6}
-
-do_test 2.3.3 {
-  catchsql {
-    INSERT INTO t1 VALUES('x','y')
-  }
-} {1 {database is locked}}
-do_test 2.3.4 {
-  execsql COMMIT
-  sqlite3_snapshot_free $snapshot
-} {}
-
-#-------------------------------------------------------------------------
-# Check some errors in sqlite3_snapshot_open(). It is an error if:
-#
-#   1) the db is in auto-commit mode,
-#   2) the db has an open (read or write) transaction,
-#   3) the db is not a wal database,
-#
-# Reuse the database created by earlier tests.
-#
-do_execsql_test 3.0.0 {
-  CREATE TABLE t2(x, y);
-  INSERT INTO t2 VALUES('a', 'b');
-  INSERT INTO t2 VALUES('c', 'd');
-  BEGIN;
-    SELECT * FROM t2;
-} {a b c d}
-do_test 3.0.1 {
-  set snapshot [sqlite3_snapshot_get db main]
-  execsql { COMMIT }
-  execsql { INSERT INTO t2 VALUES('e', 'f'); }
-} {}
-
-do_test 3.1 {
-  list [catch {sqlite3_snapshot_open db main $snapshot } msg] $msg
-} {1 SQLITE_ERROR}
-
-do_test 3.2.1 {
-  execsql {
-    BEGIN;
-      SELECT * FROM t2;
-  }
-} {a b c d e f}
-do_test 3.2.2 {
-  list [catch {sqlite3_snapshot_open db main $snapshot } msg] $msg
-} {1 SQLITE_ERROR}
-
-do_test 3.2.3 {
-  execsql {
-    COMMIT;
-    BEGIN;
-      INSERT INTO t2 VALUES('g', 'h');
-  }
-  list [catch {sqlite3_snapshot_open db main $snapshot } msg] $msg
-} {1 SQLITE_ERROR}
-do_execsql_test 3.2.4 COMMIT
-
-do_test 3.3.1 {
-  execsql { PRAGMA journal_mode = DELETE }
-  execsql { BEGIN }
-  list [catch {sqlite3_snapshot_open db main $snapshot } msg] $msg
-} {1 SQLITE_ERROR}
-
-do_test 3.3.2 {
-  sqlite3_snapshot_free $snapshot
-  execsql COMMIT
-} {}
-
-#-------------------------------------------------------------------------
-# Check that SQLITE_BUSY_SNAPSHOT is returned if the specified snapshot
-# no longer exists because the wal file has been checkpointed.
-#
-#   1. Reading a snapshot from the middle of a wal file is not possible
-#      after the wal file has been checkpointed.
-#
-#   2. That a snapshot from the end of a wal file can not be read once
-#      the wal file has been wrapped.
-#
-do_execsql_test 4.1.0 {
-  PRAGMA journal_mode = wal;
-  CREATE TABLE t3(i, j);
-  INSERT INTO t3 VALUES('o', 't');
-  INSERT INTO t3 VALUES('t', 'f');
-  BEGIN;
-    SELECT * FROM t3;
-} {wal o t t f}
-
-do_test 4.1.1 {
-  set snapshot [sqlite3_snapshot_get db main]
-  execsql COMMIT
-} {}
-do_test 4.1.2 {
-  execsql { 
-    INSERT INTO t3 VALUES('f', 's'); 
-    BEGIN;
-  }
-  sqlite3_snapshot_open db main $snapshot
-  execsql { SELECT * FROM t3 }
-} {o t t f}
-
-do_test 4.1.3 {
-  execsql { 
-    COMMIT;
-    PRAGMA wal_checkpoint;
-    BEGIN;
-  }
-  list [catch {sqlite3_snapshot_open db main $snapshot} msg] $msg
-} {1 SQLITE_BUSY_SNAPSHOT}
-do_test 4.1.4 {
-  sqlite3_snapshot_free $snapshot
-  execsql COMMIT
-} {}
-
-do_test 4.2.1 {
-  execsql {
-    INSERT INTO t3 VALUES('s', 'e');
-    INSERT INTO t3 VALUES('n', 't');
-    BEGIN;
-      SELECT * FROM t3;
-  }
-} {o t t f f s s e n t}
-do_test 4.2.2 {
-  set snapshot [sqlite3_snapshot_get db main]
-  execsql {
-    COMMIT;
-    PRAGMA wal_checkpoint;
-    BEGIN;
-  }
-  sqlite3_snapshot_open db main $snapshot
-  execsql { SELECT * FROM t3 }
-} {o t t f f s s e n t}
-do_test 4.2.3 {
-  execsql {
-    COMMIT;
-    INSERT INTO t3 VALUES('e', 't');
-    BEGIN;
-  }
-  list [catch {sqlite3_snapshot_open db main $snapshot} msg] $msg
-} {1 SQLITE_BUSY_SNAPSHOT}
-do_test 4.2.4 {
-  sqlite3_snapshot_free $snapshot
-} {}
-
-#-------------------------------------------------------------------------
-# Check that SQLITE_BUSY is returned if a checkpoint is running when
-# sqlite3_snapshot_open() is called.
-#
-reset_db
-db close
-testvfs tvfs
-sqlite3 db test.db -vfs tvfs
-
-do_execsql_test 5.1 {
-  PRAGMA journal_mode = wal;
-  CREATE TABLE x1(x, xx, xxx);
-  INSERT INTO x1 VALUES('z', 'zz', 'zzz');
-  BEGIN;
-    SELECT * FROM x1;
-} {wal z zz zzz}
-
-do_test 5.2 {
-  set ::snapshot [sqlite3_snapshot_get db main]
-  sqlite3 db2 test.db -vfs tvfs
-  execsql {
-    INSERT INTO x1 VALUES('a', 'aa', 'aaa');
-    COMMIT;
-  }
-} {}
-
-set t53 0
-proc write_callback {args} {
-  do_test 5.3.[incr ::t53] {
-    execsql BEGIN
-    list [catch { sqlite3_snapshot_open db main $::snapshot } msg] $msg
-  } {1 SQLITE_BUSY}
-  catchsql COMMIT
-}
-
-tvfs filter xWrite
-tvfs script write_callback
-db2 eval { PRAGMA wal_checkpoint }
-db close
-db2 close
-tvfs delete
-sqlite3_snapshot_free $snapshot
-
-#-------------------------------------------------------------------------
-# Test that sqlite3_snapshot_get() may be called immediately after
-# "BEGIN; PRAGMA user_version;". And that sqlite3_snapshot_open() may
-# be called after opening the db handle and running the script
-# "PRAGMA user_version; BEGIN".
-reset_db
-do_execsql_test 6.1 {
-  PRAGMA journal_mode = wal;
-  CREATE TABLE x1(x, xx, xxx);
-  INSERT INTO x1 VALUES('z', 'zz', 'zzz');
-  BEGIN;
-    PRAGMA user_version;
-} {wal 0}
-do_test 6.2 {
-  set ::snapshot [sqlite3_snapshot_get db main]
-  execsql {
-    INSERT INTO x1 VALUES('a', 'aa', 'aaa');
-    COMMIT;
-  }
-} {}
-do_test 6.3 {
-  sqlite3 db2 test.db 
-  db2 eval "PRAGMA user_version ; BEGIN"
-  sqlite3_snapshot_open db2 main $::snapshot
-  db2 eval { SELECT * FROM x1 }
-} {z zz zzz}
-sqlite3_snapshot_free $snapshot
-
-finish_test