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| 1 # 2001 September 27 |
| 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. The |
| 12 # focus of this file is testing the CREATE UNIQUE INDEX statement, |
| 13 # and primary keys, and the UNIQUE constraint on table columns |
| 14 # |
| 15 # $Id: unique.test,v 1.9 2009/05/02 15:46:47 drh Exp $ |
| 16 |
| 17 set testdir [file dirname $argv0] |
| 18 source $testdir/tester.tcl |
| 19 |
| 20 # Try to create a table with two primary keys. |
| 21 # (This is allowed in SQLite even that it is not valid SQL) |
| 22 # |
| 23 do_test unique-1.1 { |
| 24 catchsql { |
| 25 CREATE TABLE t1( |
| 26 a int PRIMARY KEY, |
| 27 b int PRIMARY KEY, |
| 28 c text |
| 29 ); |
| 30 } |
| 31 } {1 {table "t1" has more than one primary key}} |
| 32 do_test unique-1.1b { |
| 33 catchsql { |
| 34 CREATE TABLE t1( |
| 35 a int PRIMARY KEY, |
| 36 b int UNIQUE, |
| 37 c text |
| 38 ); |
| 39 } |
| 40 } {0 {}} |
| 41 do_test unique-1.2 { |
| 42 catchsql { |
| 43 INSERT INTO t1(a,b,c) VALUES(1,2,3) |
| 44 } |
| 45 } {0 {}} |
| 46 do_test unique-1.3 { |
| 47 catchsql { |
| 48 INSERT INTO t1(a,b,c) VALUES(1,3,4) |
| 49 } |
| 50 } {1 {column a is not unique}} |
| 51 do_test unique-1.4 { |
| 52 execsql { |
| 53 SELECT * FROM t1 ORDER BY a; |
| 54 } |
| 55 } {1 2 3} |
| 56 do_test unique-1.5 { |
| 57 catchsql { |
| 58 INSERT INTO t1(a,b,c) VALUES(3,2,4) |
| 59 } |
| 60 } {1 {column b is not unique}} |
| 61 do_test unique-1.6 { |
| 62 execsql { |
| 63 SELECT * FROM t1 ORDER BY a; |
| 64 } |
| 65 } {1 2 3} |
| 66 do_test unique-1.7 { |
| 67 catchsql { |
| 68 INSERT INTO t1(a,b,c) VALUES(3,4,5) |
| 69 } |
| 70 } {0 {}} |
| 71 do_test unique-1.8 { |
| 72 execsql { |
| 73 SELECT * FROM t1 ORDER BY a; |
| 74 } |
| 75 } {1 2 3 3 4 5} |
| 76 integrity_check unique-1.9 |
| 77 |
| 78 do_test unique-2.0 { |
| 79 execsql { |
| 80 DROP TABLE t1; |
| 81 CREATE TABLE t2(a int, b int); |
| 82 INSERT INTO t2(a,b) VALUES(1,2); |
| 83 INSERT INTO t2(a,b) VALUES(3,4); |
| 84 SELECT * FROM t2 ORDER BY a; |
| 85 } |
| 86 } {1 2 3 4} |
| 87 do_test unique-2.1 { |
| 88 catchsql { |
| 89 CREATE UNIQUE INDEX i2 ON t2(a) |
| 90 } |
| 91 } {0 {}} |
| 92 do_test unique-2.2 { |
| 93 catchsql { |
| 94 SELECT * FROM t2 ORDER BY a |
| 95 } |
| 96 } {0 {1 2 3 4}} |
| 97 do_test unique-2.3 { |
| 98 catchsql { |
| 99 INSERT INTO t2 VALUES(1,5); |
| 100 } |
| 101 } {1 {column a is not unique}} |
| 102 do_test unique-2.4 { |
| 103 catchsql { |
| 104 SELECT * FROM t2 ORDER BY a |
| 105 } |
| 106 } {0 {1 2 3 4}} |
| 107 do_test unique-2.5 { |
| 108 catchsql { |
| 109 DROP INDEX i2; |
| 110 SELECT * FROM t2 ORDER BY a; |
| 111 } |
| 112 } {0 {1 2 3 4}} |
| 113 do_test unique-2.6 { |
| 114 catchsql { |
| 115 INSERT INTO t2 VALUES(1,5) |
| 116 } |
| 117 } {0 {}} |
| 118 do_test unique-2.7 { |
| 119 catchsql { |
| 120 SELECT * FROM t2 ORDER BY a, b; |
| 121 } |
| 122 } {0 {1 2 1 5 3 4}} |
| 123 do_test unique-2.8 { |
| 124 catchsql { |
| 125 CREATE UNIQUE INDEX i2 ON t2(a); |
| 126 } |
| 127 } {1 {indexed columns are not unique}} |
| 128 do_test unique-2.9 { |
| 129 catchsql { |
| 130 CREATE INDEX i2 ON t2(a); |
| 131 } |
| 132 } {0 {}} |
| 133 integrity_check unique-2.10 |
| 134 |
| 135 # Test the UNIQUE keyword as used on two or more fields. |
| 136 # |
| 137 do_test unique-3.1 { |
| 138 catchsql { |
| 139 CREATE TABLE t3( |
| 140 a int, |
| 141 b int, |
| 142 c int, |
| 143 d int, |
| 144 unique(a,c,d) |
| 145 ); |
| 146 } |
| 147 } {0 {}} |
| 148 do_test unique-3.2 { |
| 149 catchsql { |
| 150 INSERT INTO t3(a,b,c,d) VALUES(1,2,3,4); |
| 151 SELECT * FROM t3 ORDER BY a,b,c,d; |
| 152 } |
| 153 } {0 {1 2 3 4}} |
| 154 do_test unique-3.3 { |
| 155 catchsql { |
| 156 INSERT INTO t3(a,b,c,d) VALUES(1,2,3,5); |
| 157 SELECT * FROM t3 ORDER BY a,b,c,d; |
| 158 } |
| 159 } {0 {1 2 3 4 1 2 3 5}} |
| 160 do_test unique-3.4 { |
| 161 catchsql { |
| 162 INSERT INTO t3(a,b,c,d) VALUES(1,4,3,5); |
| 163 SELECT * FROM t3 ORDER BY a,b,c,d; |
| 164 } |
| 165 } {1 {columns a, c, d are not unique}} |
| 166 integrity_check unique-3.5 |
| 167 |
| 168 # Make sure NULLs are distinct as far as the UNIQUE tests are |
| 169 # concerned. |
| 170 # |
| 171 do_test unique-4.1 { |
| 172 execsql { |
| 173 CREATE TABLE t4(a UNIQUE, b, c, UNIQUE(b,c)); |
| 174 INSERT INTO t4 VALUES(1,2,3); |
| 175 INSERT INTO t4 VALUES(NULL, 2, NULL); |
| 176 SELECT * FROM t4; |
| 177 } |
| 178 } {1 2 3 {} 2 {}} |
| 179 do_test unique-4.2 { |
| 180 catchsql { |
| 181 INSERT INTO t4 VALUES(NULL, 3, 4); |
| 182 } |
| 183 } {0 {}} |
| 184 do_test unique-4.3 { |
| 185 execsql { |
| 186 SELECT * FROM t4 |
| 187 } |
| 188 } {1 2 3 {} 2 {} {} 3 4} |
| 189 do_test unique-4.4 { |
| 190 catchsql { |
| 191 INSERT INTO t4 VALUES(2, 2, NULL); |
| 192 } |
| 193 } {0 {}} |
| 194 do_test unique-4.5 { |
| 195 execsql { |
| 196 SELECT * FROM t4 |
| 197 } |
| 198 } {1 2 3 {} 2 {} {} 3 4 2 2 {}} |
| 199 |
| 200 # Ticket #1301. Any NULL value in a set of unique columns should |
| 201 # cause the rows to be distinct. |
| 202 # |
| 203 do_test unique-4.6 { |
| 204 catchsql { |
| 205 INSERT INTO t4 VALUES(NULL, 2, NULL); |
| 206 } |
| 207 } {0 {}} |
| 208 do_test unique-4.7 { |
| 209 execsql {SELECT * FROM t4} |
| 210 } {1 2 3 {} 2 {} {} 3 4 2 2 {} {} 2 {}} |
| 211 do_test unique-4.8 { |
| 212 catchsql {CREATE UNIQUE INDEX i4a ON t4(a,b)} |
| 213 } {0 {}} |
| 214 do_test unique-4.9 { |
| 215 catchsql {CREATE UNIQUE INDEX i4b ON t4(a,b,c)} |
| 216 } {0 {}} |
| 217 do_test unique-4.10 { |
| 218 catchsql {CREATE UNIQUE INDEX i4c ON t4(b)} |
| 219 } {1 {indexed columns are not unique}} |
| 220 integrity_check unique-4.99 |
| 221 |
| 222 # Test the error message generation logic. In particular, make sure we |
| 223 # do not overflow the static buffer used to generate the error message. |
| 224 # |
| 225 do_test unique-5.1 { |
| 226 execsql { |
| 227 CREATE TABLE t5( |
| 228 first_column_with_long_name, |
| 229 second_column_with_long_name, |
| 230 third_column_with_long_name, |
| 231 fourth_column_with_long_name, |
| 232 fifth_column_with_long_name, |
| 233 sixth_column_with_long_name, |
| 234 UNIQUE( |
| 235 first_column_with_long_name, |
| 236 second_column_with_long_name, |
| 237 third_column_with_long_name, |
| 238 fourth_column_with_long_name, |
| 239 fifth_column_with_long_name, |
| 240 sixth_column_with_long_name |
| 241 ) |
| 242 ); |
| 243 INSERT INTO t5 VALUES(1,2,3,4,5,6); |
| 244 SELECT * FROM t5; |
| 245 } |
| 246 } {1 2 3 4 5 6} |
| 247 do_test unique-5.2 { |
| 248 catchsql { |
| 249 INSERT INTO t5 VALUES(1,2,3,4,5,6); |
| 250 } |
| 251 } {1 {columns first_column_with_long_name, second_column_with_long_name, third_c
olumn_with_long_name, fourth_column_with_long_name, fifth_column_with_long_name,
sixth_column_with_long_name are not unique}} |
| 252 |
| 253 finish_test |
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