xref: /illumos-gate/usr/src/lib/libsqlite/test/unique.test (revision 4eaa471005973e11a6110b69fe990530b3b95a38) 
1
2#pragma ident	"%Z%%M%	%I%	%E% SMI"
3
4# 2001 September 27
5#
6# The author disclaims copyright to this source code.  In place of
7# a legal notice, here is a blessing:
8#
9#    May you do good and not evil.
10#    May you find forgiveness for yourself and forgive others.
11#    May you share freely, never taking more than you give.
12#
13#***********************************************************************
14# This file implements regression tests for SQLite library.  The
15# focus of this file is testing the CREATE UNIQUE INDEX statement,
16# and primary keys, and the UNIQUE constraint on table columns
17#
18# $Id: unique.test,v 1.7 2003/08/05 13:13:39 drh Exp $
19
20set testdir [file dirname $argv0]
21source $testdir/tester.tcl
22
23# Try to create a table with two primary keys.
24# (This is allowed in SQLite even that it is not valid SQL)
25#
26do_test unique-1.1 {
27  catchsql {
28    CREATE TABLE t1(
29       a int PRIMARY KEY,
30       b int PRIMARY KEY,
31       c text
32    );
33  }
34} {1 {table "t1" has more than one primary key}}
35do_test unique-1.1b {
36  catchsql {
37    CREATE TABLE t1(
38       a int PRIMARY KEY,
39       b int UNIQUE,
40       c text
41    );
42  }
43} {0 {}}
44do_test unique-1.2 {
45  catchsql {
46    INSERT INTO t1(a,b,c) VALUES(1,2,3)
47  }
48} {0 {}}
49do_test unique-1.3 {
50  catchsql {
51    INSERT INTO t1(a,b,c) VALUES(1,3,4)
52  }
53} {1 {column a is not unique}}
54do_test unique-1.4 {
55  execsql {
56    SELECT * FROM t1 ORDER BY a;
57  }
58} {1 2 3}
59do_test unique-1.5 {
60  catchsql {
61    INSERT INTO t1(a,b,c) VALUES(3,2,4)
62  }
63} {1 {column b is not unique}}
64do_test unique-1.6 {
65  execsql {
66    SELECT * FROM t1 ORDER BY a;
67  }
68} {1 2 3}
69do_test unique-1.7 {
70  catchsql {
71    INSERT INTO t1(a,b,c) VALUES(3,4,5)
72  }
73} {0 {}}
74do_test unique-1.8 {
75  execsql {
76    SELECT * FROM t1 ORDER BY a;
77  }
78} {1 2 3 3 4 5}
79integrity_check unique-1.9
80
81do_test unique-2.0 {
82  execsql {
83    DROP TABLE t1;
84    CREATE TABLE t2(a int, b int);
85    INSERT INTO t2(a,b) VALUES(1,2);
86    INSERT INTO t2(a,b) VALUES(3,4);
87    SELECT * FROM t2 ORDER BY a;
88  }
89} {1 2 3 4}
90do_test unique-2.1 {
91  catchsql {
92    CREATE UNIQUE INDEX i2 ON t2(a)
93  }
94} {0 {}}
95do_test unique-2.2 {
96  catchsql {
97    SELECT * FROM t2 ORDER BY a
98  }
99} {0 {1 2 3 4}}
100do_test unique-2.3 {
101  catchsql {
102    INSERT INTO t2 VALUES(1,5);
103  }
104} {1 {column a is not unique}}
105do_test unique-2.4 {
106  catchsql {
107    SELECT * FROM t2 ORDER BY a
108  }
109} {0 {1 2 3 4}}
110do_test unique-2.5 {
111  catchsql {
112    DROP INDEX i2;
113    SELECT * FROM t2 ORDER BY a;
114  }
115} {0 {1 2 3 4}}
116do_test unique-2.6 {
117  catchsql {
118    INSERT INTO t2 VALUES(1,5)
119  }
120} {0 {}}
121do_test unique-2.7 {
122  catchsql {
123    SELECT * FROM t2 ORDER BY a, b;
124  }
125} {0 {1 2 1 5 3 4}}
126do_test unique-2.8 {
127  catchsql {
128    CREATE UNIQUE INDEX i2 ON t2(a);
129  }
130} {1 {indexed columns are not unique}}
131do_test unique-2.9 {
132  catchsql {
133    CREATE INDEX i2 ON t2(a);
134  }
135} {0 {}}
136integrity_check unique-2.10
137
138# Test the UNIQUE keyword as used on two or more fields.
139#
140do_test unique-3.1 {
141  catchsql {
142    CREATE TABLE t3(
143       a int,
144       b int,
145       c int,
146       d int,
147       unique(a,c,d)
148     );
149  }
150} {0 {}}
151do_test unique-3.2 {
152  catchsql {
153    INSERT INTO t3(a,b,c,d) VALUES(1,2,3,4);
154    SELECT * FROM t3 ORDER BY a,b,c,d;
155  }
156} {0 {1 2 3 4}}
157do_test unique-3.3 {
158  catchsql {
159    INSERT INTO t3(a,b,c,d) VALUES(1,2,3,5);
160    SELECT * FROM t3 ORDER BY a,b,c,d;
161  }
162} {0 {1 2 3 4 1 2 3 5}}
163do_test unique-3.4 {
164  catchsql {
165    INSERT INTO t3(a,b,c,d) VALUES(1,4,3,5);
166    SELECT * FROM t3 ORDER BY a,b,c,d;
167  }
168} {1 {columns a, c, d are not unique}}
169integrity_check unique-3.5
170
171# Make sure NULLs are distinct as far as the UNIQUE tests are
172# concerned.
173#
174do_test unique-4.1 {
175  execsql {
176    CREATE TABLE t4(a UNIQUE, b, c, UNIQUE(b,c));
177    INSERT INTO t4 VALUES(1,2,3);
178    INSERT INTO t4 VALUES(NULL, 2, NULL);
179    SELECT * FROM t4;
180  }
181} {1 2 3 {} 2 {}}
182do_test unique-4.2 {
183  catchsql {
184    INSERT INTO t4 VALUES(NULL, 3, 4);
185  }
186} {0 {}}
187do_test unique-4.3 {
188  execsql {
189    SELECT * FROM t4
190  }
191} {1 2 3 {} 2 {} {} 3 4}
192do_test unique-4.4 {
193  catchsql {
194    INSERT INTO t4 VALUES(2, 2, NULL);
195  }
196} {0 {}}
197do_test unique-4.5 {
198  execsql {
199    SELECT * FROM t4
200  }
201} {1 2 3 {} 2 {} {} 3 4 2 2 {}}
202integrity_check unique-4.6
203
204# Test the error message generation logic.  In particular, make sure we
205# do not overflow the static buffer used to generate the error message.
206#
207do_test unique-5.1 {
208  execsql {
209    CREATE TABLE t5(
210      first_column_with_long_name,
211      second_column_with_long_name,
212      third_column_with_long_name,
213      fourth_column_with_long_name,
214      fifth_column_with_long_name,
215      sixth_column_with_long_name,
216      UNIQUE(
217        first_column_with_long_name,
218        second_column_with_long_name,
219        third_column_with_long_name,
220        fourth_column_with_long_name,
221        fifth_column_with_long_name,
222        sixth_column_with_long_name
223      )
224    );
225    INSERT INTO t5 VALUES(1,2,3,4,5,6);
226    SELECT * FROM t5;
227  }
228} {1 2 3 4 5 6}
229do_test unique-5.2 {
230  catchsql {
231    INSERT INTO t5 VALUES(1,2,3,4,5,6);
232  }
233} {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}}
234
235finish_test
236