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Overview
| Comment: | Add tests to ensure that each of the 4 wal read-locks does what it is supposed to. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | wal2 |
| Files: | files | file ages | folders |
| SHA3-256: |
4d5779f31d4931edb8bb8952d8886625 |
| User & Date: | dan 2018-12-12 19:04:19 |
| Wiki: | wal2 |
Context
|
2018-12-12
| ||
| 20:39 | Add new test file wal2big.test. (check-in: e3e50bcd user: dan tags: wal2) | |
| 19:04 | Add tests to ensure that each of the 4 wal read-locks does what it is supposed to. (check-in: 4d5779f3 user: dan tags: wal2) | |
|
2018-12-11
| ||
| 17:56 | Change the way wal2 locks work to ensure a reader only ever has to lock a single slot. (check-in: 18b2c23a user: dan tags: wal2) | |
Changes
Changes to test/wal2simple.test.
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do_execsql_test 3.0 {
CREATE TABLE t1(x BLOB, y INTEGER PRIMARY KEY);
CREATE INDEX i1 ON t1(x);
PRAGMA cache_size = 5;
PRAGMA journal_mode = wal2;
} {wal2}
breakpoint
do_test 3.1 {
execsql BEGIN
for {set i 1} {$i < 1000} {incr i} {
execsql { INSERT INTO t1 VALUES(randomblob(800), $i) }
}
execsql COMMIT
} {}
................................................................................
do_test 6.4.2 {
db2 eval {
PRAGMA journal_mode = wal2;
SELECT * FROM sqlite_master;
}
} {wal2}
db2 close
finish_test
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do_execsql_test 3.0 {
CREATE TABLE t1(x BLOB, y INTEGER PRIMARY KEY);
CREATE INDEX i1 ON t1(x);
PRAGMA cache_size = 5;
PRAGMA journal_mode = wal2;
} {wal2}
do_test 3.1 {
execsql BEGIN
for {set i 1} {$i < 1000} {incr i} {
execsql { INSERT INTO t1 VALUES(randomblob(800), $i) }
}
execsql COMMIT
} {}
................................................................................
do_test 6.4.2 {
db2 eval {
PRAGMA journal_mode = wal2;
SELECT * FROM sqlite_master;
}
} {wal2}
db2 close
#-------------------------------------------------------------------------
reset_db
sqlite3 db2 test.db
do_execsql_test 7.0 {
PRAGMA journal_size_limit = 10000;
PRAGMA journal_mode = wal2;
PRAGMA wal_autocheckpoint = 0;
BEGIN;
CREATE TABLE t1(a);
INSERT INTO t1 VALUES( randomblob(8000) );
COMMIT;
} {10000 wal2 0}
do_test 7.1 {
list [file size test.db-wal] [file size test.db-wal2]
} {9464 0}
# Connection db2 is holding a PART1 lock.
#
# 7.2.2: Test that the PART1 does not prevent db from switching to the
# other wal file.
#
# 7.2.3: Test that the PART1 does prevent a checkpoint of test.db-wal.
#
# 7.2.4: Test that after the PART1 is released the checkpoint is possible.
#
do_test 7.2.1 {
execsql {
BEGIN;
SELECT count(*) FROM t1;
} db2
} {1}
do_test 7.2.2 {
execsql {
INSERT INTO t1 VALUES( randomblob(800) );
INSERT INTO t1 VALUES( randomblob(800) );
}
list [file size test.db-wal] [file size test.db-wal2] [file size test.db]
} {13656 3176 1024}
do_test 7.2.3 {
execsql { PRAGMA wal_checkpoint }
list [file size test.db-wal] [file size test.db-wal2] [file size test.db]
} {13656 3176 1024}
do_test 7.2.4 {
execsql { END } db2
execsql { PRAGMA wal_checkpoint }
list [file size test.db-wal] [file size test.db-wal2] [file size test.db]
} {13656 3176 11264}
# Connection db2 is holding a PART2_FULL1 lock.
#
# 7.3.2: Test that the lock does not prevent checkpointing.
#
# 7.3.3: Test that the lock does prevent the writer from overwriting
# test.db-wal.
#
# 7.3.4: Test that after the PART2_FULL1 is released the writer can
# switch wal files and overwrite test.db-wal
#
db close
db2 close
sqlite3 db test.db
sqlite3 db2 test.db
do_test 7.3.1 {
execsql {
PRAGMA wal_autocheckpoint = 0;
PRAGMA journal_size_limit = 10000;
INSERT INTO t1 VALUES(randomblob(10000));
INSERT INTO t1 VALUES(randomblob(500));
}
execsql {
BEGIN;
SELECT count(*) FROM t1;
} db2
list [file size test.db-wal] [file size test.db-wal2] [file size test.db]
} {12608 3176 11264}
do_test 7.3.2 {
execsql { PRAGMA wal_checkpoint }
list [file size test.db-wal] [file size test.db-wal2] [file size test.db]
} {12608 3176 21504}
do_test 7.3.3 {
execsql {
INSERT INTO t1 VALUES(randomblob(10000));
INSERT INTO t1 VALUES(randomblob(500));
}
list [file size test.db-wal] [file size test.db-wal2] [file size test.db]
} {12608 18896 21504}
do_test 7.3.4 {
execsql END db2
execsql { INSERT INTO t1 VALUES(randomblob(5000)); }
list [file size test.db-wal] [file size test.db-wal2] [file size test.db]
} {12608 18896 21504}
# Connection db2 is holding a PART2 lock.
#
# 7.4.2: Test that the lock does not prevent writer switching to test.db-wal.
#
# 7.3.3: Test that the lock does prevent checkpointing of test.db-wal2.
#
# 7.3.4: Test that after the PART2 is released test.db-wal2 can be
# checkpointed.
#
db close
db2 close
sqlite3 db test.db
sqlite3 db2 test.db
do_test 7.4.1 {
execsql {
PRAGMA wal_autocheckpoint = 0;
PRAGMA journal_size_limit = 10000;
INSERT INTO t1 VALUES(randomblob(10000));
INSERT INTO t1 VALUES(randomblob(10000));
PRAGMA wal_checkpoint;
}
execsql {
BEGIN;
SELECT count(*) FROM t1;
} db2
list [file size test.db-wal] [file size test.db-wal2] [file size test.db]
} {12608 12608 44032}
do_test 7.4.2 {
execsql {
INSERT INTO t1 VALUES(randomblob(5000));
}
list [file size test.db-wal] [file size test.db-wal2] [file size test.db]
} {12608 12608 44032}
do_test 7.4.3 {
execsql { PRAGMA wal_checkpoint }
list [file size test.db-wal] [file size test.db-wal2] [file size test.db]
} {12608 12608 44032}
do_test 7.4.4 {
execsql END db2
execsql { PRAGMA wal_checkpoint }
list [file size test.db-wal] [file size test.db-wal2] [file size test.db]
} {12608 12608 54272}
# Connection db2 is holding a PART1_FULL2 lock.
#
# 7.5.2: Test that the lock does not prevent a checkpoint of test.db-wal2.
#
# 7.5.3: Test that the lock does prevent the writer from overwriting
# test.db-wal2.
#
# 7.5.4: Test that after the PART1_FULL2 lock is released, the writer
# can switch to test.db-wal2.
#
db close
db2 close
sqlite3 db test.db
sqlite3 db2 test.db
do_test 7.5.1 {
execsql {
PRAGMA wal_autocheckpoint = 0;
PRAGMA journal_size_limit = 10000;
INSERT INTO t1 VALUES(randomblob(10000));
INSERT INTO t1 VALUES(randomblob(10000));
PRAGMA wal_checkpoint;
INSERT INTO t1 VALUES(randomblob(5000));
}
execsql {
BEGIN;
SELECT count(*) FROM t1;
} db2
list [file size test.db-wal] [file size test.db-wal2] [file size test.db]
} {12608 12608 64512}
do_test 7.5.2 {
execsql { PRAGMA wal_checkpoint }
list [file size test.db-wal] [file size test.db-wal2] [file size test.db]
} {12608 12608 75776}
do_test 7.5.3.1 {
execsql { INSERT INTO t1 VALUES(randomblob(5000)) }
list [file size test.db-wal] [file size test.db-wal2] [file size test.db]
} {14704 12608 75776}
do_test 7.5.3.2 {
execsql { INSERT INTO t1 VALUES(randomblob(5000)) }
list [file size test.db-wal] [file size test.db-wal2] [file size test.db]
} {22040 12608 75776}
do_test 7.5.4 {
execsql END db2
execsql { INSERT INTO t1 VALUES(randomblob(5000)) }
list [file size test.db-wal] [file size test.db-wal2] [file size test.db]
} {22040 12608 75776}
finish_test
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