xref: /illumos-gate/usr/src/lib/libsqlite/test/unique.test (revision e3ae4b35c024af1196582063ecee3ab79367227d) 
1#
2# 2001 September 27
3#
4# The author disclaims copyright to this source code.  In place of
5# a legal notice, here is a blessing:
6#
7#    May you do good and not evil.
8#    May you find forgiveness for yourself and forgive others.
9#    May you share freely, never taking more than you give.
10#
11#***********************************************************************
12# This file implements regression tests for SQLite library.  The
13# focus of this file is testing the CREATE UNIQUE INDEX statement,
14# and primary keys, and the UNIQUE constraint on table columns
15#
16# $Id: unique.test,v 1.7 2003/08/05 13:13:39 drh Exp $
17
18set testdir [file dirname $argv0]
19source $testdir/tester.tcl
20
21# Try to create a table with two primary keys.
22# (This is allowed in SQLite even that it is not valid SQL)
23#
24do_test unique-1.1 {
25  catchsql {
26    CREATE TABLE t1(
27       a int PRIMARY KEY,
28       b int PRIMARY KEY,
29       c text
30    );
31  }
32} {1 {table "t1" has more than one primary key}}
33do_test unique-1.1b {
34  catchsql {
35    CREATE TABLE t1(
36       a int PRIMARY KEY,
37       b int UNIQUE,
38       c text
39    );
40  }
41} {0 {}}
42do_test unique-1.2 {
43  catchsql {
44    INSERT INTO t1(a,b,c) VALUES(1,2,3)
45  }
46} {0 {}}
47do_test unique-1.3 {
48  catchsql {
49    INSERT INTO t1(a,b,c) VALUES(1,3,4)
50  }
51} {1 {column a is not unique}}
52do_test unique-1.4 {
53  execsql {
54    SELECT * FROM t1 ORDER BY a;
55  }
56} {1 2 3}
57do_test unique-1.5 {
58  catchsql {
59    INSERT INTO t1(a,b,c) VALUES(3,2,4)
60  }
61} {1 {column b is not unique}}
62do_test unique-1.6 {
63  execsql {
64    SELECT * FROM t1 ORDER BY a;
65  }
66} {1 2 3}
67do_test unique-1.7 {
68  catchsql {
69    INSERT INTO t1(a,b,c) VALUES(3,4,5)
70  }
71} {0 {}}
72do_test unique-1.8 {
73  execsql {
74    SELECT * FROM t1 ORDER BY a;
75  }
76} {1 2 3 3 4 5}
77integrity_check unique-1.9
78
79do_test unique-2.0 {
80  execsql {
81    DROP TABLE t1;
82    CREATE TABLE t2(a int, b int);
83    INSERT INTO t2(a,b) VALUES(1,2);
84    INSERT INTO t2(a,b) VALUES(3,4);
85    SELECT * FROM t2 ORDER BY a;
86  }
87} {1 2 3 4}
88do_test unique-2.1 {
89  catchsql {
90    CREATE UNIQUE INDEX i2 ON t2(a)
91  }
92} {0 {}}
93do_test unique-2.2 {
94  catchsql {
95    SELECT * FROM t2 ORDER BY a
96  }
97} {0 {1 2 3 4}}
98do_test unique-2.3 {
99  catchsql {
100    INSERT INTO t2 VALUES(1,5);
101  }
102} {1 {column a is not unique}}
103do_test unique-2.4 {
104  catchsql {
105    SELECT * FROM t2 ORDER BY a
106  }
107} {0 {1 2 3 4}}
108do_test unique-2.5 {
109  catchsql {
110    DROP INDEX i2;
111    SELECT * FROM t2 ORDER BY a;
112  }
113} {0 {1 2 3 4}}
114do_test unique-2.6 {
115  catchsql {
116    INSERT INTO t2 VALUES(1,5)
117  }
118} {0 {}}
119do_test unique-2.7 {
120  catchsql {
121    SELECT * FROM t2 ORDER BY a, b;
122  }
123} {0 {1 2 1 5 3 4}}
124do_test unique-2.8 {
125  catchsql {
126    CREATE UNIQUE INDEX i2 ON t2(a);
127  }
128} {1 {indexed columns are not unique}}
129do_test unique-2.9 {
130  catchsql {
131    CREATE INDEX i2 ON t2(a);
132  }
133} {0 {}}
134integrity_check unique-2.10
135
136# Test the UNIQUE keyword as used on two or more fields.
137#
138do_test unique-3.1 {
139  catchsql {
140    CREATE TABLE t3(
141       a int,
142       b int,
143       c int,
144       d int,
145       unique(a,c,d)
146     );
147  }
148} {0 {}}
149do_test unique-3.2 {
150  catchsql {
151    INSERT INTO t3(a,b,c,d) VALUES(1,2,3,4);
152    SELECT * FROM t3 ORDER BY a,b,c,d;
153  }
154} {0 {1 2 3 4}}
155do_test unique-3.3 {
156  catchsql {
157    INSERT INTO t3(a,b,c,d) VALUES(1,2,3,5);
158    SELECT * FROM t3 ORDER BY a,b,c,d;
159  }
160} {0 {1 2 3 4 1 2 3 5}}
161do_test unique-3.4 {
162  catchsql {
163    INSERT INTO t3(a,b,c,d) VALUES(1,4,3,5);
164    SELECT * FROM t3 ORDER BY a,b,c,d;
165  }
166} {1 {columns a, c, d are not unique}}
167integrity_check unique-3.5
168
169# Make sure NULLs are distinct as far as the UNIQUE tests are
170# concerned.
171#
172do_test unique-4.1 {
173  execsql {
174    CREATE TABLE t4(a UNIQUE, b, c, UNIQUE(b,c));
175    INSERT INTO t4 VALUES(1,2,3);
176    INSERT INTO t4 VALUES(NULL, 2, NULL);
177    SELECT * FROM t4;
178  }
179} {1 2 3 {} 2 {}}
180do_test unique-4.2 {
181  catchsql {
182    INSERT INTO t4 VALUES(NULL, 3, 4);
183  }
184} {0 {}}
185do_test unique-4.3 {
186  execsql {
187    SELECT * FROM t4
188  }
189} {1 2 3 {} 2 {} {} 3 4}
190do_test unique-4.4 {
191  catchsql {
192    INSERT INTO t4 VALUES(2, 2, NULL);
193  }
194} {0 {}}
195do_test unique-4.5 {
196  execsql {
197    SELECT * FROM t4
198  }
199} {1 2 3 {} 2 {} {} 3 4 2 2 {}}
200integrity_check unique-4.6
201
202# Test the error message generation logic.  In particular, make sure we
203# do not overflow the static buffer used to generate the error message.
204#
205do_test unique-5.1 {
206  execsql {
207    CREATE TABLE t5(
208      first_column_with_long_name,
209      second_column_with_long_name,
210      third_column_with_long_name,
211      fourth_column_with_long_name,
212      fifth_column_with_long_name,
213      sixth_column_with_long_name,
214      UNIQUE(
215        first_column_with_long_name,
216        second_column_with_long_name,
217        third_column_with_long_name,
218        fourth_column_with_long_name,
219        fifth_column_with_long_name,
220        sixth_column_with_long_name
221      )
222    );
223    INSERT INTO t5 VALUES(1,2,3,4,5,6);
224    SELECT * FROM t5;
225  }
226} {1 2 3 4 5 6}
227do_test unique-5.2 {
228  catchsql {
229    INSERT INTO t5 VALUES(1,2,3,4,5,6);
230  }
231} {1 {columns first_column_with_long_name, second_column_with_long_name, third_column_with_long_name, fourth_column_with_long_name, fifth_column_with_long_name, ... are not unique}}
232
233finish_test
234