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Annotation of embedaddon/sqlite3/test/tkt2767.test, revision 1.1.1.1

1.1       misho       1: # 2007 Oct 3
                      2: #
                      3: # The author disclaims copyright to this source code. In place of
                      4: # a legal notice, here is a blessing:
                      5: #
                      6: #    May you do good and not evil.
                      7: #    May you find forgiveness for yourself and forgive others.
                      8: #    May you share freely, never taking more than you give.
                      9: #
                     10: #***********************************************************************
                     11: #
                     12: # This file is to test that ticket #2767 has been fixed.
                     13: # Ticket #2767 is for a VDBE stack overflow on BEFORE
                     14: # triggers that run RAISE(IGNORE).
                     15: #
                     16: # $Id: tkt2767.test,v 1.3 2009/04/07 14:14:23 danielk1977 Exp $
                     17: #
                     18: 
                     19: set testdir [file dirname $argv0]
                     20: source $testdir/tester.tcl
                     21: 
                     22: ifcapable !trigger { finish_test ; return }
                     23: 
                     24: do_test tkt2767-1.1 {
                     25:   execsql {
                     26:     -- Construct a table with many rows of data
                     27:     CREATE TABLE t1(x);
                     28:     INSERT INTO t1 VALUES(1);
                     29:     INSERT INTO t1 VALUES(2);
                     30:     INSERT INTO t1 SELECT x+2 FROM t1;
                     31:     INSERT INTO t1 SELECT x+4 FROM t1;
                     32:     INSERT INTO t1 SELECT x+8 FROM t1;
                     33:     INSERT INTO t1 SELECT x+16 FROM t1;
                     34: 
                     35:     -- BEFORE triggers that invoke raise(ignore).  The effect of
                     36:     -- these triggers should be to make INSERTs, UPDATEs, and DELETEs
                     37:     -- into no-ops.
                     38:     CREATE TRIGGER r1 BEFORE UPDATE ON t1 BEGIN
                     39:       SELECT raise(ignore);
                     40:     END;
                     41:     CREATE TRIGGER r2 BEFORE DELETE ON t1 BEGIN
                     42:       SELECT raise(ignore);
                     43:     END;
                     44:     CREATE TRIGGER r3 BEFORE INSERT ON t1 BEGIN
                     45:       SELECT raise(ignore);
                     46:     END;
                     47: 
                     48:     -- Verify the table content
                     49:     SELECT count(*), sum(x) FROM t1;
                     50:   }
                     51: } {32 528}
                     52: 
                     53: # Try to delete all elements of the table.  This will invoke the
                     54: # DELETE trigger 32 times, which should overflow the VDBE stack if
                     55: # the problem of #2767 is not fixed.  If the problem is fixed, all
                     56: # the deletes should be no-ops so the table should remain unchanged.
                     57: #
                     58: do_test tkt2767-1.2 {
                     59:   execsql {
                     60:     DELETE FROM t1 WHERE x>0;
                     61:     SELECT count(*), sum(x) FROM t1;
                     62:   }
                     63: } {32 528}
                     64: 
                     65: # Try to update all elements of the table.  This will invoke the
                     66: # UPDATE trigger 32 times, which should overflow the VDBE stack if
                     67: # the problem of #2767 is not fixed.  If the problem is fixed, all
                     68: # the updates should be no-ops so the table should remain unchanged.
                     69: #
                     70: do_test tkt2767-1.3 {
                     71:   execsql {
                     72:     UPDATE t1 SET x=x+1;
                     73:     SELECT count(*), sum(x) FROM t1;
                     74:   }
                     75: } {32 528}
                     76: 
                     77: # Invoke the insert trigger.  The insert trigger was working
                     78: # even prior to the fix of #2767.  But it seems good to go ahead
                     79: # and verify that it works.
                     80: #
                     81: do_test tkt2767-1.4 {
                     82:   execsql {
                     83:     INSERT INTO t1 SELECT x+32 FROM t1;
                     84:     SELECT count(*), sum(x) FROM t1;
                     85:   }
                     86: } {32 528}
                     87: 
                     88: 
                     89: 
                     90: finish_test