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280 lines
7.6 KiB
Plaintext
280 lines
7.6 KiB
Plaintext
# 2009 February 27
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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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# $Id: temptrigger.test,v 1.3 2009/04/15 13:07:19 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix temptrigger
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ifcapable {!trigger || !shared_cache} { finish_test ; return }
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# Test cases:
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#
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# temptrigger-1.*: Shared cache problem.
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# temptrigger-2.*: A similar shared cache problem.
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# temptrigger-3.*: Attached database problem.
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#
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#-------------------------------------------------------------------------
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# Test case temptrigger-1.* demonstrates a problem with temp triggers
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# in shared-cache mode. If process 1 connections to a shared-cache and
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# creates a temp trigger, the temp trigger is linked into the shared-cache
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# schema. If process 2 reloads the shared-cache schema from disk, then
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# it does not recreate the temp trigger belonging to process 1. From the
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# point of view of process 1, the temp trigger just disappeared.
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#
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# temptrigger-1.1: In shared cache mode, create a table in the main
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# database and add a temp trigger to it.
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#
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# temptrigger-1.2: Check that the temp trigger is correctly fired. Check
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# that the temp trigger is not fired by statements
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# executed by a second connection connected to the
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# same shared cache.
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#
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# temptrigger-1.3: Using the second connection to the shared-cache, cause
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# the shared-cache schema to be reloaded.
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#
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# temptrigger-1.4: Check that the temp trigger is still fired correctly.
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#
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# temptrigger-1.5: Check that the temp trigger can be dropped without error.
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#
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db close
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set ::enable_shared_cache [sqlite3_enable_shared_cache]
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sqlite3_enable_shared_cache 1
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sqlite3 db test.db
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sqlite3 db2 test.db
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do_test temptrigger-1.1 {
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execsql {
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CREATE TABLE t1(a, b);
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CREATE TEMP TABLE tt1(a, b);
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CREATE TEMP TRIGGER tr1 AFTER INSERT ON t1 BEGIN
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INSERT INTO tt1 VALUES(new.a, new.b);
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END;
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}
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} {}
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do_test temptrigger-1.2.1 {
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execsql { INSERT INTO t1 VALUES(1, 2) }
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execsql { SELECT * FROM t1 }
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} {1 2}
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do_test temptrigger-1.2.2 {
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execsql { SELECT * FROM tt1 }
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} {1 2}
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do_test temptrigger-1.2.3 {
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execsql { INSERT INTO t1 VALUES(3, 4) } db2
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execsql { SELECT * FROM t1 }
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} {1 2 3 4}
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do_test temptrigger-1.2.4 {
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execsql { SELECT * FROM tt1 }
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} {1 2}
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# Cause the shared-cache schema to be reloaded.
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#
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do_test temptrigger-1.3 {
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execsql { BEGIN; CREATE TABLE t3(a, b); ROLLBACK; } db2
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} {}
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do_test temptrigger-1.4 {
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execsql { INSERT INTO t1 VALUES(5, 6) }
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execsql { SELECT * FROM tt1 }
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} {1 2 5 6}
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do_test temptrigger-1.5 {
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# Before the bug was fixed, the following 'DROP TRIGGER' hit an
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# assert if executed.
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#execsql { DROP TRIGGER tr1 }
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} {}
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catch {db close}
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catch {db2 close}
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#-------------------------------------------------------------------------
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# Tests temptrigger-2.* are similar to temptrigger-1.*, except that
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# temptrigger-2.3 simply opens and closes a connection to the shared-cache.
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# It does not do anything special to cause the schema to be reloaded.
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#
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do_test temptrigger-2.1 {
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sqlite3 db test.db
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execsql {
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DELETE FROM t1;
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CREATE TEMP TABLE tt1(a, b);
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CREATE TEMP TRIGGER tr1 AFTER INSERT ON t1 BEGIN
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INSERT INTO tt1 VALUES(new.a, new.b);
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END;
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}
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} {}
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do_test temptrigger-2.2 {
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execsql {
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INSERT INTO t1 VALUES(10, 20);
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SELECT * FROM tt1;
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}
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} {10 20}
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do_test temptrigger-2.3 {
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sqlite3 db2 test.db
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db2 close
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} {}
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do_test temptrigger-2.4 {
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execsql {
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INSERT INTO t1 VALUES(30, 40);
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SELECT * FROM tt1;
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}
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} {10 20 30 40}
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do_test temptrigger-2.5 {
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#execsql { DROP TRIGGER tr1 }
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} {}
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catch {db close}
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catch {db2 close}
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sqlite3_enable_shared_cache $::enable_shared_cache
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#-------------------------------------------------------------------------
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# Test case temptrigger-3.* demonstrates a problem with temp triggers
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# on tables located in attached databases. At one point when SQLite reloaded
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# the schema of an attached database (because some other connection had
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# changed the schema cookie) it was not re-creating temp triggers attached
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# to tables located within the attached database.
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#
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# temptrigger-3.1: Attach database 'test2.db' to connection [db]. Add a
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# temp trigger to a table in 'test2.db'.
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#
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# temptrigger-3.2: Check that the temp trigger is correctly fired.
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#
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# temptrigger-3.3: Update the schema of 'test2.db' using an external
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# connection. This forces [db] to reload the 'test2.db'
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# schema. Check that the temp trigger is still fired
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# correctly.
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#
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# temptrigger-3.4: Check that the temp trigger can be dropped without error.
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#
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do_test temptrigger-3.1 {
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catch { forcedelete test2.db test2.db-journal }
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catch { forcedelete test.db test.db-journal }
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sqlite3 db test.db
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sqlite3 db2 test2.db
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execsql { CREATE TABLE t2(a, b) } db2
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execsql {
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ATTACH 'test2.db' AS aux;
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CREATE TEMP TABLE tt2(a, b);
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CREATE TEMP TRIGGER tr2 AFTER INSERT ON aux.t2 BEGIN
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INSERT INTO tt2 VALUES(new.a, new.b);
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END;
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}
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} {}
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do_test temptrigger-3.2.1 {
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execsql {
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INSERT INTO aux.t2 VALUES(1, 2);
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SELECT * FROM aux.t2;
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}
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} {1 2}
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do_test temptrigger-3.2.2 {
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execsql { SELECT * FROM tt2 }
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} {1 2}
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do_test temptrigger-3.3.1 {
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execsql { CREATE TABLE t3(a, b) } db2
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execsql {
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INSERT INTO aux.t2 VALUES(3, 4);
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SELECT * FROM aux.t2;
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}
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} {1 2 3 4}
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do_test temptrigger-3.3.2 {
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execsql { SELECT * FROM tt2 }
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} {1 2 3 4}
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do_test temptrigger-3.4 {
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# Before the bug was fixed, the following 'DROP TRIGGER' hit an
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# assert if executed.
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#execsql { DROP TRIGGER tr2 }
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} {}
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catch { db close }
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catch { db2 close }
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#-------------------------------------------------------------------------
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# Test that creating a temp table after a temp trigger on the same name
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# has been created is an error.
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#
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reset_db
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do_execsql_test 4.0 {
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CREATE TABLE t1(x);
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CREATE TEMP TRIGGER tr1 BEFORE INSERT ON t1 BEGIN
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SELECT 1,2,3;
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END;
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}
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do_execsql_test 4.1 {
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CREATE TEMP TABLE t1(x);
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}
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#-------------------------------------------------------------------------
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# Test that no harm is done if the table a temp trigger is attached to is
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# deleted by an external connection.
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#
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reset_db
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do_execsql_test 5.0 {
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CREATE TABLE t1(x);
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CREATE TEMP TRIGGER tr1 BEFORE INSERT ON t1 BEGIN SELECT 1,2,3; END;
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}
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do_test 5.1 {
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sqlite3 db2 test.db
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execsql { DROP TABLE t1 } db2
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} {}
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do_execsql_test 5.2 {
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SELECT * FROM sqlite_master;
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SELECT * FROM temp.sqlite_master;
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} {
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trigger tr1 t1 0
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{CREATE TRIGGER tr1 BEFORE INSERT ON t1 BEGIN SELECT 1,2,3; END}
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}
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db2 close
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#-------------------------------------------------------------------------
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# Check that if a second connection creates a table in an attached database
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# with the same name as a table in the main database that has a temp
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# trigger attached to it nothing goes awry.
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#
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reset_db
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forcedelete test.db2
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do_execsql_test 6.0 {
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CREATE TABLE t1(x);
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CREATE TEMP TRIGGER tr1 BEFORE INSERT ON t1 BEGIN
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SELECT raise(ABORT, 'error');
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END;
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ATTACH 'test.db2' AS aux;
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}
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do_test 6.1 {
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sqlite3 db2 test.db2
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execsql { CREATE TABLE t1(a, b, c); } db2
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} {}
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do_execsql_test 6.2 {
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SELECT type,name,tbl_name,sql FROM aux.sqlite_master;
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INSERT INTO aux.t1 VALUES(1,2,3);
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} {
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table t1 t1 {CREATE TABLE t1(a, b, c)}
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}
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do_catchsql_test 6.3 {
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INSERT INTO main.t1 VALUES(1);
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} {1 error}
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db2 close
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finish_test
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