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Further tests and changes related to switching between WAL and rollback modes.

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FossilOrigin-Name: 1236318477787a612f02cc98caf2931bd2e99d94
This commit is contained in:
dan
2010-04-22 06:27:04 +00:00
parent b978002743
commit ede6eb8d1d
6 changed files with 92 additions and 27 deletions
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52
test/walmode.test
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@ -72,6 +72,8 @@ do_test walmode-3.2 {
list $sqlite_sync_count [file exists test.db-wal] [file size test.db-wal]
} {0 1 0}
# Test that changing back to journal_mode=persist works.
#
do_test walmode-4.1 {
execsql { INSERT INTO t1 VALUES(1, 2) }
execsql { PRAGMA journal_mode = persist }
@ -91,5 +93,55 @@ do_test walmode-4.5 {
list [file exists test.db-journal] [file exists test.db-wal]
} {1 0}
# Test that nothing goes wrong if a connection is prevented from changing
# from WAL to rollback mode because a second connection has the database
# open. Or from rollback to WAL.
#
do_test walmode-4.1 {
sqlite3 db2 test.db
execsql { PRAGMA main.journal_mode } db2
} {delete}
do_test walmode-4.2 {
execsql { PRAGMA main.journal_mode = wal } db
} {wal}
do_test walmode-4.3 {
execsql { SELECT * FROM t1 } db2
} {1 2}
do_test walmode-4.4 {
catchsql { PRAGMA journal_mode = delete } db
} {1 {database is locked}}
do_test walmode-4.5 {
execsql { PRAGMA main.journal_mode } db
} {wal}
do_test walmode-4.6 {
db2 close
execsql { PRAGMA journal_mode = delete } db
} {delete}
do_test walmode-4.7 {
execsql { PRAGMA main.journal_mode } db
} {delete}
do_test walmode-4.8 {
list [file exists test.db-journal] [file exists test.db-wal]
} {0 0}
do_test walmode-4.9 {
sqlite3 db2 test.db
execsql {
BEGIN;
SELECT * FROM t1;
} db2
} {1 2}
do_test walmode-4.11 {
execsql { PRAGMA main.journal_mode } db
} {delete}
do_test walmode-4.10 {
catchsql { PRAGMA main.journal_mode = wal } db
} {1 {database is locked}}
do_test walmode-4.11 {
execsql { PRAGMA main.journal_mode } db
} {delete}
catch { db close }
catch { db2 close }
finish_test