Adding upstream version 1.37.0.
Signed-off-by: Daniel Baumann <daniel@debian.org>
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183
testdata/tcl/snapshot_up.test
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183
testdata/tcl/snapshot_up.test
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# 2018 August 6
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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# Tests for calling sqlite3_snapshot_open() when there is already
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# a read transaction open on the database.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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ifcapable !snapshot {finish_test; return}
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set testprefix snapshot_up
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# This test does not work with the inmemory_journal permutation. The reason
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# is that each connection opened as part of this permutation executes
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# "PRAGMA journal_mode=memory", which fails if the database is in wal mode
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# and there are one or more existing connections.
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if {[permutation]=="inmemory_journal"} {
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finish_test
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return
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}
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do_execsql_test 1.0 {
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CREATE TABLE t1(a, b, c);
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PRAGMA journal_mode = wal;
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INSERT INTO t1 VALUES(1, 2, 3);
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INSERT INTO t1 VALUES(4, 5, 6);
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INSERT INTO t1 VALUES(7, 8, 9);
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} {wal}
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do_test 1.1 {
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execsql BEGIN
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set ::snap1 [sqlite3_snapshot_get db main]
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execsql COMMIT
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execsql { INSERT INTO t1 VALUES(10, 11, 12); }
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execsql BEGIN
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set ::snap2 [sqlite3_snapshot_get db main]
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execsql COMMIT
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execsql { INSERT INTO t1 VALUES(13, 14, 15); }
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execsql BEGIN
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set ::snap3 [sqlite3_snapshot_get db main]
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execsql COMMIT
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} {}
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do_execsql_test 1.2 {
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BEGIN;
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SELECT * FROM t1
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} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15}
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do_test 1.3 {
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sqlite3_snapshot_open db main $::snap1
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execsql { SELECT * FROM t1 }
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} {1 2 3 4 5 6 7 8 9}
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do_test 1.4 {
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sqlite3_snapshot_open db main $::snap2
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execsql { SELECT * FROM t1 }
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} {1 2 3 4 5 6 7 8 9 10 11 12}
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do_test 1.5 {
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sqlite3 db2 test.db
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execsql { PRAGMA wal_checkpoint } db2
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} {0 5 4}
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do_execsql_test 1.6 {
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SELECT * FROM t1
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} {1 2 3 4 5 6 7 8 9 10 11 12}
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do_test 1.7 {
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list [catch { sqlite3_snapshot_open db main $::snap1 } msg] $msg
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} {1 SQLITE_ERROR_SNAPSHOT}
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do_execsql_test 1.8 {
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SELECT * FROM t1
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} {1 2 3 4 5 6 7 8 9 10 11 12}
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do_test 1.9 {
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execsql { COMMIT ; BEGIN }
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list [catch { sqlite3_snapshot_open db main $::snap1 } msg] $msg
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} {1 SQLITE_ERROR_SNAPSHOT}
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do_test 1.10 {
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execsql { COMMIT }
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execsql {
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PRAGMA wal_checkpoint;
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DELETE FROM t1 WHERE a = 1;
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} db2
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execsql BEGIN
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set ::snap4 [sqlite3_snapshot_get db main]
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execsql COMMIT
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execsql {
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DELETE FROM t1 WHERE a = 4;
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} db2
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} {}
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do_test 1.11 {
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execsql {
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BEGIN;
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SELECT * FROM t1
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}
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} {7 8 9 10 11 12 13 14 15}
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do_test 1.12 {
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sqlite3_snapshot_open db main $::snap4
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execsql { SELECT * FROM t1 }
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} {4 5 6 7 8 9 10 11 12 13 14 15}
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do_test 1.13 {
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list [catch { sqlite3_snapshot_open db main $::snap3 } msg] $msg
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} {1 SQLITE_ERROR_SNAPSHOT}
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do_test 1.14 {
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execsql { SELECT * FROM t1 }
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} {4 5 6 7 8 9 10 11 12 13 14 15}
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db close
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db2 close
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sqlite3 db test.db
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do_execsql_test 1.15 {
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BEGIN;
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SELECT * FROM t1
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} {7 8 9 10 11 12 13 14 15}
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do_test 1.16 {
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list [catch { sqlite3_snapshot_open db main $::snap4 } msg] $msg
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} {1 SQLITE_ERROR_SNAPSHOT}
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do_execsql_test 1.17 { COMMIT }
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sqlite3_snapshot_free $::snap1
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sqlite3_snapshot_free $::snap2
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sqlite3_snapshot_free $::snap3
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sqlite3_snapshot_free $::snap4
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#-------------------------------------------------------------------------
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catch { db close }
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sqlite3 db test.db
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sqlite3 db2 test.db
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sqlite3 db3 test.db
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proc xBusy {args} { return 1 }
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db3 busy xBusy
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do_test 2.1 {
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execsql { INSERT INTO t1 VALUES(16, 17, 18) } db2
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execsql BEGIN
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set ::snap1 [sqlite3_snapshot_get db main]
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execsql COMMIT
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execsql { INSERT INTO t1 VALUES(19, 20, 21) } db2
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execsql BEGIN
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set ::snap2 [sqlite3_snapshot_get db main]
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execsql COMMIT
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set {} {}
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} {}
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do_execsql_test -db db2 2.2 {
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BEGIN;
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INSERT INTO t1 VALUES(19, 20, 21);
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}
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do_test 2.3 {
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execsql BEGIN
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sqlite3_snapshot_open db main $::snap1
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execsql { SELECT * FROM t1 }
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} {7 8 9 10 11 12 13 14 15 16 17 18}
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proc xBusy {args} {
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set ::res [list [catch { sqlite3_snapshot_open db main $::snap2 } msg] $msg]
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return 1
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}
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db3 busy xBusy
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do_test 2.4 {
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execsql {PRAGMA wal_checkpoint = restart} db3
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set ::res
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} {1 SQLITE_BUSY}
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sqlite3_snapshot_free $::snap1
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sqlite3_snapshot_free $::snap2
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finish_test
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