| # 2018 August 28 |
| # |
| # 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 snapshot4 |
| |
| # This test does not work with the inmemory_journal permutation. The reason |
| # is that each connection opened as part of this permutation executes |
| # "PRAGMA journal_mode=memory", which fails if the database is in wal mode |
| # and there are one or more existing connections. |
| if {[permutation]=="inmemory_journal"} { |
| finish_test |
| return |
| } |
| |
| sqlite3 db2 test.db |
| |
| do_execsql_test 1.0 { |
| PRAGMA cache_size = 10; |
| CREATE TABLE t1(a, b); |
| INSERT INTO t1 VALUES(1, randomblob(400)); |
| PRAGMA journal_mode = wal; |
| WITH s(i) AS ( |
| SELECT 2 UNION ALL SELECT i+1 FROM s WHERE i<100 |
| ) |
| INSERT INTO t1 SELECT i, randomblob(400) FROM s; |
| } {wal} |
| |
| do_test 1.1 { |
| execsql { |
| BEGIN; |
| SELECT count(*) FROM t1; |
| } |
| } {100} |
| |
| do_test 1.2 { |
| db2 eval { |
| SELECT count(*) FROM t1; |
| CREATE TABLE t2(x); |
| } |
| } {100} |
| |
| do_test 1.3 { |
| set ::snap [sqlite3_snapshot_get_blob db main] |
| db2 eval { PRAGMA wal_checkpoint } |
| } {0 54 52} |
| |
| do_test 1.4 { |
| execsql { |
| COMMIT; |
| SELECT * FROM sqlite_master; |
| BEGIN; |
| } |
| sqlite3_snapshot_open_blob db main $::snap |
| execsql { |
| SELECT count(*) FROM t1 |
| } |
| } {100} |
| |
| |
| finish_test |