| # 2011 November 16 |
| # |
| # 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 contains test cases for sqlite3_db_cacheflush API. |
| # |
| |
| set testdir [file dirname $argv0] |
| source $testdir/tester.tcl |
| set testprefix cacheflush |
| test_set_config_pagecache 0 0 |
| |
| # Run the supplied SQL on a copy of the database currently stored on |
| # disk in file $dbfile. |
| proc diskquery {dbfile sql} { |
| forcecopy $dbfile dq.db |
| sqlite3 dq dq.db |
| set res [execsql $sql dq] |
| dq close |
| set res |
| } |
| |
| # Simplest possible test. |
| # |
| do_execsql_test 1.1.0 { |
| CREATE TABLE t1(a, b); |
| INSERT INTO t1 VALUES(1, 2); |
| BEGIN; |
| INSERT INTO t1 VALUES(3, 4); |
| } |
| do_test 1.1.1 { |
| diskquery test.db { SELECT * FROM t1 } |
| } {1 2} |
| do_test 1.1.2 { |
| sqlite3_db_cacheflush db |
| diskquery test.db { SELECT * FROM t1 } |
| } {1 2 3 4} |
| |
| # Test that multiple pages may be flushed to disk. |
| # |
| do_execsql_test 1.2.0 { |
| COMMIT; |
| CREATE TABLE t2(a, b); |
| BEGIN; |
| INSERT INTO t1 VALUES(5, 6); |
| INSERT INTO t2 VALUES('a', 'b'); |
| } |
| do_test 1.2.1 { |
| diskquery test.db { |
| SELECT * FROM t1; |
| SELECT * FROM t2; |
| } |
| } {1 2 3 4} |
| do_test 1.2.2 { |
| sqlite3_db_cacheflush db |
| diskquery test.db { |
| SELECT * FROM t1; |
| SELECT * FROM t2; |
| } |
| } {1 2 3 4 5 6 a b} |
| |
| # Test that pages with nRef!=0 are not flushed to disk. |
| # |
| do_execsql_test 1.3.0 { |
| COMMIT; |
| CREATE TABLE t3(a, b); |
| BEGIN; |
| INSERT INTO t1 VALUES(7, 8); |
| INSERT INTO t2 VALUES('c', 'd'); |
| INSERT INTO t3 VALUES('i', 'ii'); |
| } |
| do_test 1.3.1 { |
| diskquery test.db { |
| SELECT * FROM t1; |
| SELECT * FROM t2; |
| SELECT * FROM t3; |
| } |
| } {1 2 3 4 5 6 a b} |
| do_test 1.3.2 { |
| db eval { SELECT a FROM t1 } { |
| if {$a==3} { |
| sqlite3_db_cacheflush db |
| } |
| } |
| diskquery test.db { |
| SELECT * FROM t1; |
| SELECT * FROM t2; |
| SELECT * FROM t3; |
| } |
| } {1 2 3 4 5 6 a b c d i ii} |
| do_test 1.3.2 { |
| sqlite3_db_cacheflush db |
| diskquery test.db { |
| SELECT * FROM t1; |
| SELECT * FROM t2; |
| SELECT * FROM t3; |
| } |
| } {1 2 3 4 5 6 7 8 a b c d i ii} |
| |
| # Check that SQLITE_BUSY is returned if pages cannot be flushed due to |
| # conflicting read locks. |
| # |
| do_execsql_test 1.4.0 { |
| COMMIT; |
| BEGIN; |
| INSERT INTO t1 VALUES(9, 10); |
| } |
| do_test 1.4.1 { |
| sqlite3 db2 test.db |
| db2 eval { |
| BEGIN; |
| SELECT * FROM t1; |
| } |
| diskquery test.db { |
| SELECT * FROM t1; |
| } |
| } {1 2 3 4 5 6 7 8} |
| do_test 1.4.2 { |
| list [catch { sqlite3_db_cacheflush db } msg] $msg |
| } {1 {database is locked}} |
| do_test 1.4.3 { |
| diskquery test.db { |
| SELECT * FROM t1; |
| } |
| } {1 2 3 4 5 6 7 8} |
| do_test 1.4.4 { |
| db2 close |
| sqlite3_db_cacheflush db |
| diskquery test.db { |
| SELECT * FROM t1; |
| } |
| } {1 2 3 4 5 6 7 8 9 10} |
| do_execsql_test 1.4.5 { COMMIT } |
| |
| #------------------------------------------------------------------------- |
| # Test that ATTACHed database caches are also flushed. |
| # |
| forcedelete test.db2 |
| do_execsql_test 2.1.0 { |
| ATTACH 'test.db2' AS aux; |
| CREATE TABLE aux.t4(x, y); |
| INSERT INTO t4 VALUES('A', 'B'); |
| BEGIN; |
| INSERT INTO t1 VALUES(11, 12); |
| INSERT INTO t4 VALUES('C', 'D'); |
| } |
| do_test 2.1.1 { |
| diskquery test.db { SELECT * FROM t1; } |
| } {1 2 3 4 5 6 7 8 9 10} |
| do_test 2.1.2 { |
| diskquery test.db2 { SELECT * FROM t4; } |
| } {A B} |
| do_test 2.1.3 { |
| sqlite3_db_cacheflush db |
| diskquery test.db { SELECT * FROM t1; } |
| } {1 2 3 4 5 6 7 8 9 10 11 12} |
| do_test 2.1.4 { |
| sqlite3_db_cacheflush db |
| diskquery test.db2 { SELECT * FROM t4; } |
| } {A B C D} |
| do_execsql_test 2.1.5 { COMMIT } |
| |
| # And that hitting an SQLITE_BUSY when flushing "main" does not stop |
| # SQLite from going on to flush "aux". |
| # |
| do_execsql_test 2.2.0 { |
| BEGIN; |
| INSERT INTO t1 VALUES(13, 14); |
| INSERT INTO t4 VALUES('E', 'F'); |
| } |
| do_test 2.2.1 { |
| diskquery test.db { SELECT * FROM t1; } |
| } {1 2 3 4 5 6 7 8 9 10 11 12} |
| do_test 2.2.2 { |
| diskquery test.db2 { SELECT * FROM t4; } |
| } {A B C D} |
| do_test 2.2.3 { |
| sqlite3 db2 test.db |
| execsql { |
| BEGIN; |
| SELECT * FROM t1; |
| } db2 |
| list [catch { sqlite3_db_cacheflush db } msg] $msg |
| } {1 {database is locked}} |
| do_test 2.2.4 { |
| diskquery test.db { SELECT * FROM t1; } |
| } {1 2 3 4 5 6 7 8 9 10 11 12} |
| do_test 2.2.5 { |
| diskquery test.db2 { SELECT * FROM t4; } |
| } {A B C D E F} |
| do_test 2.2.6 { |
| db2 close |
| sqlite3_db_cacheflush db |
| diskquery test.db { SELECT * FROM t1; } |
| } {1 2 3 4 5 6 7 8 9 10 11 12 13 14} |
| do_execsql_test 2.2.7 { COMMIT } |
| |
| #------------------------------------------------------------------------- |
| # Test that nothing terrible happens if sqlite3_db_cacheflush() is |
| # called on an in-memory database. |
| # |
| do_test 3.0 { |
| db close |
| sqlite3 db :memory: |
| db eval { |
| CREATE TABLE t1(x PRIMARY KEY); |
| CREATE TABLE t2(y PRIMARY KEY); |
| BEGIN; |
| INSERT INTO t1 VALUES(randomblob(100)); |
| INSERT INTO t2 VALUES(randomblob(100)); |
| INSERT INTO t1 VALUES(randomblob(100)); |
| INSERT INTO t2 VALUES(randomblob(100)); |
| } |
| sqlite3_db_cacheflush db |
| } {} |
| |
| do_execsql_test 3.1 { PRAGMA integrity_check } ok |
| do_execsql_test 3.2 { COMMIT } |
| do_execsql_test 3.3 { PRAGMA integrity_check } ok |
| do_execsql_test 3.4 { |
| SELECT count(*) FROM t1; |
| SELECT count(*) FROM t2; |
| } {2 2} |
| |
| #------------------------------------------------------------------------- |
| # Test that calling sqlite3_db_cacheflush() does not interfere with |
| # savepoint transactions. |
| # |
| do_test 4.0 { |
| reset_db |
| execsql { |
| CREATE TABLE ta(a, aa); |
| CREATE TABLE tb(b, bb); |
| INSERT INTO ta VALUES('a', randomblob(500)); |
| INSERT INTO tb VALUES('b', randomblob(500)); |
| BEGIN; |
| UPDATE ta SET a = 'A'; |
| SAVEPOINT one; |
| UPDATE tb SET b = 'B'; |
| } |
| |
| sqlite3_db_cacheflush db |
| diskquery test.db { |
| SELECT a FROM ta; |
| SELECT b FROM tb; |
| } |
| } {A B} |
| |
| do_test 4.1 { |
| execsql { |
| ROLLBACK TO one; |
| } |
| sqlite3_db_cacheflush db |
| diskquery test.db { |
| SELECT a FROM ta; |
| SELECT b FROM tb; |
| } |
| } {A b} |
| |
| do_test 4.2 { |
| execsql { |
| INSERT INTO tb VALUES('c', randomblob(10)); |
| INSERT INTO tb VALUES('d', randomblob(10)); |
| INSERT INTO tb VALUES('e', randomblob(10)); |
| } |
| sqlite3_db_cacheflush db |
| diskquery test.db { |
| SELECT a FROM ta; |
| SELECT b FROM tb; |
| } |
| } {A b c d e} |
| |
| do_test 4.3 { |
| execsql { |
| SAVEPOINT two; |
| UPDATE tb SET b = upper(b); |
| } |
| sqlite3_db_cacheflush db |
| diskquery test.db { |
| SELECT a FROM ta; |
| SELECT b FROM tb; |
| } |
| } {A B C D E} |
| |
| do_test 4.4 { |
| execsql { |
| ROLLBACK TO two; |
| } |
| sqlite3_db_cacheflush db |
| diskquery test.db { |
| SELECT a FROM ta; |
| SELECT b FROM tb; |
| } |
| } {A b c d e} |
| |
| do_test 4.4 { |
| execsql { |
| ROLLBACK TO one; |
| } |
| sqlite3_db_cacheflush db |
| diskquery test.db { |
| SELECT a FROM ta; |
| SELECT b FROM tb; |
| } |
| } {A b} |
| |
| do_test 4.5 { |
| execsql { |
| ROLLBACK; |
| SELECT a FROM ta; |
| SELECT b FROM tb; |
| } |
| } {a b} |
| |
| test_restore_config_pagecache |
| finish_test |