xref: /sqlite-3.40.0/test/trigger4.test (revision 4dcbdbff) 
1# The author disclaims copyright to this source code.  In place of
2# a legal notice, here is a blessing:
3#
4#    May you do good and not evil.
5#    May you find forgiveness for yourself and forgive others.
6#    May you share freely, never taking more than you give.
7#
8#***********************************************************************
9#
10# This file tests the triggers of views.
11#
12
13set testdir [file dirname $argv0]
14source $testdir/tester.tcl
15
16# If either views or triggers are disabled in this build, omit this file.
17ifcapable {!trigger || !view} {
18  finish_test
19  return
20}
21
22do_test trigger4-1.1 {
23  execsql {
24    create table test1(id integer primary key,a);
25    create table test2(id integer,b);
26    create view test as
27      select test1.id as id,a as a,b as b
28      from test1 join test2 on test2.id =  test1.id;
29    create trigger I_test instead of insert on test
30      begin
31        insert into test1 (id,a) values (NEW.id,NEW.a);
32        insert into test2 (id,b) values (NEW.id,NEW.b);
33      end;
34    insert into test values(1,2,3);
35    select * from test1;
36  }
37} {1 2}
38do_test trigger4-1.2 {
39  execsql {
40    select * from test2;
41  }
42} {1 3}
43do_test trigger4-1.3 {
44  db close
45  sqlite3 db test.db
46  execsql {
47    insert into test values(4,5,6);
48    select * from test1;
49  }
50} {1 2 4 5}
51do_test trigger4-1.4 {
52  execsql {
53    select * from test2;
54  }
55} {1 3 4 6}
56
57do_test trigger4-2.1 {
58  execsql {
59    create trigger U_test instead of update on test
60      begin
61        update test1 set a=NEW.a where id=NEW.id;
62        update test2 set b=NEW.b where id=NEW.id;
63      end;
64    update test set a=22 where id=1;
65    select * from test1;
66  }
67} {1 22 4 5}
68do_test trigger4-2.2 {
69  execsql {
70    select * from test2;
71  }
72} {1 3 4 6}
73do_test trigger4-2.3 {
74  db close
75  sqlite3 db test.db
76  execsql {
77    update test set b=66 where id=4;
78    select * from test1;
79  }
80} {1 22 4 5}
81do_test trigger4-2.4 {
82  execsql {
83    select * from test2;
84  }
85} {1 3 4 66}
86
87do_test trigger4-3.1 {
88  catchsql {
89    drop table test2;
90    insert into test values(7,8,9);
91  }
92} {1 {no such table: main.test2}}
93do_test trigger4-3.2 {
94  db close
95  sqlite3 db test.db
96  catchsql {
97    insert into test values(7,8,9);
98  }
99} {1 {no such table: main.test2}}
100do_test trigger4-3.3 {
101  catchsql {
102    update test set a=222 where id=1;
103  }
104} {1 {no such table: main.test2}}
105do_test trigger4-3.4 {
106  execsql {
107    select * from test1;
108  }
109} {1 22 4 5}
110do_test trigger4-3.5 {
111  execsql {
112    create table test2(id,b);
113    insert into test values(7,8,9);
114    select * from test1;
115  }
116} {1 22 4 5 7 8}
117do_test trigger4-3.6 {
118  execsql {
119    select * from test2;
120  }
121} {7 9}
122do_test trigger4-3.7 {
123  db close
124  sqlite3 db test.db
125  execsql {
126    update test set b=99 where id=7;
127    select * from test2;
128  }
129} {7 99}
130
131do_test trigger4-4.1 {
132    db close
133    sqlite3 db trigtest.db
134    catchsql {drop table tbl; drop view vw}
135    execsql {
136	create table tbl(a integer primary key, b integer);
137	create view vw as select * from tbl;
138	create trigger t_del_tbl instead of delete on vw for each row begin
139	  delete from tbl where a = old.a;
140	end;
141	create trigger t_upd_tbl instead of update on vw for each row begin
142	  update tbl set a=new.a, b=new.b where a = old.a;
143	end;
144	create trigger t_ins_tbl instead of insert on vw for each row begin
145	  insert into tbl values (new.a,new.b);
146	end;
147	insert into tbl values(101,1001);
148	insert into tbl values(102,1002);
149	insert into tbl select a+2, b+2 from tbl;
150	insert into tbl select a+4, b+4 from tbl;
151	insert into tbl select a+8, b+8 from tbl;
152	insert into tbl select a+16, b+16 from tbl;
153	insert into tbl select a+32, b+32 from tbl;
154	insert into tbl select a+64, b+64 from tbl;
155	select count(*) from vw;
156    }
157} {128}
158do_test trigger4-4.2 {
159    execsql {select a, b from vw where a<103 or a>226 order by a}
160} {101 1001 102 1002 227 1127 228 1128}
161
162#test delete from view
163do_test trigger4-5.1 {
164    catchsql {delete from vw where a>101 and a<2000}
165} {0 {}}
166do_test trigger4-5.2 {
167    execsql {select * from vw}
168} {101 1001}
169
170#test insert into view
171do_test trigger4-6.1 {
172    catchsql {
173	insert into vw values(102,1002);
174	insert into vw select a+2, b+2 from vw;
175	insert into vw select a+4, b+4 from vw;
176	insert into vw select a+8, b+8 from vw;
177	insert into vw select a+16, b+16 from vw;
178	insert into vw select a+32, b+32 from vw;
179	insert into vw select a+64, b+64 from vw;
180    }
181} {0 {}}
182do_test trigger4-6.2 {
183    execsql {select count(*) from vw}
184} {128}
185
186#test update of view
187do_test trigger4-7.1 {
188    catchsql {update vw set b=b+1000 where a>101 and a<2000}
189} {0 {}}
190do_test trigger4-7.2 {
191    execsql {select a, b from vw where a<=102 or a>=227 order by a}
192} {101 1001 102 2002 227 2127 228 2128}
193
194integrity_check trigger4-99.9
195
196finish_test
197