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

1.1       misho       1: # 2008 April 15
                      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: # This file implements regression tests for SQLite library. Specifically,
                     12: # it tests updating tables with constraints within a trigger.  Ticket #3055.
                     13: #
                     14: 
                     15: set testdir [file dirname $argv0]
                     16: source $testdir/tester.tcl
                     17: ifcapable {!trigger} {
                     18:   finish_test
                     19:   return
                     20: }
                     21: 
                     22: # Create test tables with constraints.
                     23: #
                     24: do_test triggerB-1.1 {
                     25:   execsql {
                     26:     CREATE TABLE x(x INTEGER PRIMARY KEY, y INT NOT NULL);
                     27:     INSERT INTO x(y) VALUES(1);
                     28:     INSERT INTO x(y) VALUES(1);
                     29:     CREATE TEMP VIEW vx AS SELECT x, y, 0 AS yy FROM x;
                     30:     CREATE TEMP TRIGGER tx INSTEAD OF UPDATE OF y ON vx
                     31:     BEGIN
                     32:       UPDATE x SET y = new.y WHERE x = new.x;
                     33:     END;
                     34:     SELECT * FROM vx;
                     35:   }
                     36: } {1 1 0 2 1 0}
                     37: do_test triggerB-1.2 {
                     38:   execsql {
                     39:     UPDATE vx SET y = yy;
                     40:     SELECT * FROM vx;
                     41:   }
                     42: } {1 0 0 2 0 0}
                     43: 
                     44: # Added 2008-08-22:
                     45: #
                     46: # Name resolution within triggers.
                     47: #
                     48: do_test triggerB-2.1 {
                     49:   catchsql {
                     50:     CREATE TRIGGER ty AFTER INSERT ON x BEGIN
                     51:        SELECT wen.x; -- Unrecognized name
                     52:     END;
                     53:     INSERT INTO x VALUES(1,2);
                     54:   }
                     55: } {1 {no such column: wen.x}}
                     56: do_test triggerB-2.2 {
                     57:   catchsql {
                     58:     CREATE TRIGGER tz AFTER UPDATE ON x BEGIN
                     59:        SELECT dlo.x; -- Unrecognized name
                     60:     END;
                     61:     UPDATE x SET y=y+1;
                     62:   }
                     63: } {1 {no such column: dlo.x}}
                     64: 
                     65: do_test triggerB-2.3 {
                     66:   execsql {
                     67:     CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
                     68:     INSERT INTO t2 VALUES(1,2);
                     69:     CREATE TABLE changes(x,y);
                     70:     CREATE TRIGGER r1t2 AFTER UPDATE ON t2 BEGIN
                     71:       INSERT INTO changes VALUES(new.a, new.b);
                     72:     END;
                     73:   }
                     74:   execsql {
                     75:     UPDATE t2 SET a=a+10;
                     76:     SELECT * FROM changes;
                     77:   }
                     78: } {11 2}
                     79: do_test triggerB-2.4 {
                     80:   execsql {
                     81:     CREATE TRIGGER r2t2 AFTER DELETE ON t2 BEGIN
                     82:       INSERT INTO changes VALUES(old.a, old.c);
                     83:     END;
                     84:   }
                     85:   catchsql {
                     86:     DELETE FROM t2;
                     87:   }
                     88: } {1 {no such column: old.c}}
                     89: 
                     90: # Triggers maintain a mask of columns from the invoking table that are
                     91: # used in the trigger body as NEW.column or OLD.column.  That mask is then
                     92: # used to reduce the amount of information that needs to be loaded into
                     93: # the NEW and OLD pseudo-tables at run-time.
                     94: #
                     95: # These tests cases check the logic for when there are many columns - more
                     96: # than will fit in a bitmask.
                     97: #
                     98: do_test triggerB-3.1 {
                     99:   execsql {
                    100:     CREATE TABLE t3(
                    101:        c0,  c1,  c2,  c3,  c4,  c5,  c6,  c7,  c8,  c9,
                    102:        c10, c11, c12, c13, c14, c15, c16, c17, c18, c19,
                    103:        c20, c21, c22, c23, c24, c25, c26, c27, c28, c29,
                    104:        c30, c31, c32, c33, c34, c35, c36, c37, c38, c39,
                    105:        c40, c41, c42, c43, c44, c45, c46, c47, c48, c49,
                    106:        c50, c51, c52, c53, c54, c55, c56, c57, c58, c59,
                    107:        c60, c61, c62, c63, c64, c65
                    108:     );
                    109:     CREATE TABLE t3_changes(colnum, oldval, newval);
                    110:     INSERT INTO t3 VALUES(
                    111:        'a0', 'a1', 'a2', 'a3', 'a4', 'a5', 'a6', 'a7', 'a8', 'a9',
                    112:        'a10','a11','a12','a13','a14','a15','a16','a17','a18','a19',
                    113:        'a20','a21','a22','a23','a24','a25','a26','a27','a28','a29',
                    114:        'a30','a31','a32','a33','a34','a35','a36','a37','a38','a39',
                    115:        'a40','a41','a42','a43','a44','a45','a46','a47','a48','a49',
                    116:        'a50','a51','a52','a53','a54','a55','a56','a57','a58','a59',
                    117:        'a60','a61','a62','a63','a64','a65'
                    118:     );
                    119:   }
                    120:   for {set i 0} {$i<=65} {incr i} {
                    121:     set sql [subst {
                    122:       CREATE TRIGGER t3c$i AFTER UPDATE ON t3
                    123:          WHEN old.c$i!=new.c$i BEGIN
                    124:           INSERT INTO t3_changes VALUES($i, old.c$i, new.c$i);
                    125:       END
                    126:     }]
                    127:     db eval $sql
                    128:   }
                    129:   execsql {
                    130:     SELECT * FROM t3_changes
                    131:   }
                    132: } {}
                    133: for {set i 0} {$i<=64} {incr i} {
                    134:   do_test triggerB-3.2.$i.1 [subst {
                    135:     execsql {
                    136:       UPDATE t3 SET c$i='b$i';
                    137:       SELECT * FROM t3_changes ORDER BY rowid DESC LIMIT 1;
                    138:     }
                    139:   }] [subst {$i a$i b$i}]
                    140:   do_test triggerB-3.2.$i.2 [subst {
                    141:     execsql {
                    142:       SELECT count(*) FROM t3_changes
                    143:     }
                    144:   }] [expr {$i+1}]
                    145:   do_test triggerB-3.2.$i.2 [subst {
                    146:     execsql {
                    147:       SELECT * FROM t3_changes WHERE colnum=$i
                    148:     }
                    149:   }] [subst {$i a$i b$i}]
                    150: }
                    151:   
                    152: 
                    153: finish_test