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Comment:Add test case that should have been part of previous commit.
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SHA3-256: dc7dd2d3e50e7cc474b22f1b5b219da32bcd7aa1ba56864d1dbcf0d3a6fa06f2
User & Date: dan 2022-12-05 14:20:54
Context
2022-12-06
05:09
Add optional feature: A CLI continuation prompt which reflects open lexemes and parens, similarly to PG shell. (Leaf check-in: dac2ddc2 user: larrybr tags: dynamic_prompt)
2022-12-05
19:16
Enhance the sqlite3_stmt_scanstatus() API and add sqlite3_stmt_scanstatus_v2(). For creation of enhanced query performance reports. (check-in: 4893b4e3 user: dan tags: trunk)
18:26
Merge latest trunk changes. (check-in: 1a72777b user: dan tags: scanstatus_v2)
14:20
Add test case that should have been part of previous commit. (check-in: dc7dd2d3 user: dan tags: trunk)
14:12
Fix a problem in the memdb vfs xLock() function allowing clients to upgrade to EXCLUSIVE locks when other connections are holding SHARED. Forum post 5adb92e2baca3678. (check-in: 15f0be8a user: dan tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Added test/memdb2.test. 






































































































































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# 2022-12-05
#
# 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 "memdb" VFS
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix memdb1
do_not_use_codec

ifcapable !deserialize {
  finish_test
  return
}

db close

#-------------------------------------------------------------------------
# Test that when using a memdb database, it is not possible to upgrade
# to an EXCLUSIVE lock if some other client is holding SHARED.
#
sqlite3 db  file:/test.db?vfs=memdb -uri 1
sqlite3 db2 file:/test.db?vfs=memdb -uri 1

do_execsql_test 1.1 {
  CREATE TABLE t1(x, y);
  INSERT INTO t1 VALUES(1, 2);
}

do_execsql_test -db db2 1.2 {
  BEGIN;
    SELECT * FROM t1;
} {1 2}

do_execsql_test 1.3 {
  BEGIN;
    INSERT INTO t1 VALUES(3, 4);
}

do_catchsql_test 1.4 {
  COMMIT
} {1 {database is locked}}

do_execsql_test -db db2 1.5 {
    SELECT * FROM t1;
  END;
} {1 2}

do_execsql_test 1.6 {
  COMMIT
} {}

do_execsql_test -db db2 1.7 {
  SELECT * FROM t1
} {1 2 3 4}

finish_test