1 # 2005 November 2

     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 CHECK constraints

    13 #

    14 # $Id: check.test,v 1.11 2007/07/23 19:39:47 drh Exp $

    15 

    16 set testdir [file dirname $argv0]

    17 source $testdir/tester.tcl

    18 

    19 # Only run these tests if the build includes support for CHECK constraints

    20 ifcapable !check {

    21   finish_test

    22   return

    23 }

    24 

    25 do_test check-1.1 {

    26   execsql {

    27     CREATE TABLE t1(

    28       x INTEGER CHECK( x<5 ),

    29       y REAL CHECK( y>x )

    30     );

    31   }

    32 } {}

    33 do_test check-1.2 {

    34   execsql {

    35     INSERT INTO t1 VALUES(3,4);

    36     SELECT * FROM t1;

    37   }  

    38 } {3 4.0}

    39 do_test check-1.3 {

    40   catchsql {

    41     INSERT INTO t1 VALUES(6,7);

    42   }

    43 } {1 {constraint failed}}

    44 do_test check-1.4 {

    45   execsql {

    46     SELECT * FROM t1;

    47   }  

    48 } {3 4.0}

    49 do_test check-1.5 {

    50   catchsql {

    51     INSERT INTO t1 VALUES(4,3);

    52   }

    53 } {1 {constraint failed}}

    54 do_test check-1.6 {

    55   execsql {

    56     SELECT * FROM t1;

    57   }  

    58 } {3 4.0}

    59 do_test check-1.7 {

    60   catchsql {

    61     INSERT INTO t1 VALUES(NULL,6);

    62   }

    63 } {0 {}}

    64 do_test check-1.8 {

    65   execsql {

    66     SELECT * FROM t1;

    67   }  

    68 } {3 4.0 {} 6.0}

    69 do_test check-1.9 {

    70   catchsql {

    71     INSERT INTO t1 VALUES(2,NULL);

    72   }

    73 } {0 {}}

    74 do_test check-1.10 {

    75   execsql {

    76     SELECT * FROM t1;

    77   }  

    78 } {3 4.0 {} 6.0 2 {}}

    79 do_test check-1.11 {

    80   execsql {

    81     DELETE FROM t1 WHERE x IS NULL OR x!=3;

    82     UPDATE t1 SET x=2 WHERE x==3;

    83     SELECT * FROM t1;

    84   }

    85 } {2 4.0}

    86 do_test check-1.12 {

    87   catchsql {

    88     UPDATE t1 SET x=7 WHERE x==2

    89   }

    90 } {1 {constraint failed}}

    91 do_test check-1.13 {

    92   execsql {

    93     SELECT * FROM t1;

    94   }

    95 } {2 4.0}

    96 do_test check-1.14 {

    97   catchsql {

    98     UPDATE t1 SET x=5 WHERE x==2

    99   }

   100 } {1 {constraint failed}}

   101 do_test check-1.15 {

   102   execsql {

   103     SELECT * FROM t1;

   104   }

   105 } {2 4.0}

   106 do_test check-1.16 {

   107   catchsql {

   108     UPDATE t1 SET x=4, y=11 WHERE x==2

   109   }

   110 } {0 {}}

   111 do_test check-1.17 {

   112   execsql {

   113     SELECT * FROM t1;

   114   }

   115 } {4 11.0}

   116 

   117 do_test check-2.1 {

   118   execsql {

   119     CREATE TABLE t2(

   120       x INTEGER CHECK( typeof(coalesce(x,0))=="integer" ),

   121       y REAL CHECK( typeof(coalesce(y,0.1))=="real" ),

   122       z TEXT CHECK( typeof(coalesce(z,''))=="text" )

   123     );

   124   }

   125 } {}

   126 do_test check-2.2 {

   127   execsql {

   128     INSERT INTO t2 VALUES(1,2.2,'three');

   129     SELECT * FROM t2;

   130   }

   131 } {1 2.2 three}

   132 do_test check-2.3 {

   133   execsql {

   134     INSERT INTO t2 VALUES(NULL, NULL, NULL);

   135     SELECT * FROM t2;

   136   }

   137 } {1 2.2 three {} {} {}}

   138 do_test check-2.4 {

   139   catchsql {

   140     INSERT INTO t2 VALUES(1.1, NULL, NULL);

   141   }

   142 } {1 {constraint failed}}

   143 do_test check-2.5 {

   144   catchsql {

   145     INSERT INTO t2 VALUES(NULL, 5, NULL);

   146   }

   147 } {1 {constraint failed}}

   148 do_test check-2.6 {

   149   catchsql {

   150     INSERT INTO t2 VALUES(NULL, NULL, 3.14159);

   151   }

   152 } {1 {constraint failed}}

   153 

   154 ifcapable subquery {

   155   do_test check-3.1 {

   156     catchsql {

   157       CREATE TABLE t3(

   158         x, y, z,

   159         CHECK( x<(SELECT min(x) FROM t1) )

   160       );

   161     }

   162   } {1 {subqueries prohibited in CHECK constraints}}

   163 }

   164 

   165 do_test check-3.2 {

   166   execsql {

   167     SELECT name FROM sqlite_master ORDER BY name

   168   }

   169 } {t1 t2}

   170 do_test check-3.3 {

   171   catchsql {

   172     CREATE TABLE t3(

   173       x, y, z,

   174       CHECK( q<x )

   175     );

   176   }

   177 } {1 {no such column: q}}

   178 do_test check-3.4 {

   179   execsql {

   180     SELECT name FROM sqlite_master ORDER BY name

   181   }

   182 } {t1 t2}

   183 do_test check-3.5 {

   184   catchsql {

   185     CREATE TABLE t3(

   186       x, y, z,

   187       CHECK( t2.x<x )

   188     );

   189   }

   190 } {1 {no such column: t2.x}}

   191 do_test check-3.6 {

   192   execsql {

   193     SELECT name FROM sqlite_master ORDER BY name

   194   }

   195 } {t1 t2}

   196 do_test check-3.7 {

   197   catchsql {

   198     CREATE TABLE t3(

   199       x, y, z,

   200       CHECK( t3.x<25 )

   201     );

   202   }

   203 } {0 {}}

   204 do_test check-3.8 {

   205   execsql {

   206     INSERT INTO t3 VALUES(1,2,3);

   207     SELECT * FROM t3;

   208   }

   209 } {1 2 3}

   210 do_test check-3.9 {

   211   catchsql {

   212     INSERT INTO t3 VALUES(111,222,333);

   213   }

   214 } {1 {constraint failed}}

   215 

   216 do_test check-4.1 {

   217   execsql {

   218     CREATE TABLE t4(x, y,

   219       CHECK (

   220            x+y==11

   221         OR x*y==12

   222         OR x/y BETWEEN 5 AND 8

   223         OR -x==y+10

   224       )

   225     );

   226   }

   227 } {}

   228 do_test check-4.2 {

   229   execsql {

   230     INSERT INTO t4 VALUES(1,10);

   231     SELECT * FROM t4

   232   }

   233 } {1 10}

   234 do_test check-4.3 {

   235   execsql {

   236     UPDATE t4 SET x=4, y=3;

   237     SELECT * FROM t4

   238   }

   239 } {4 3}

   240 do_test check-4.3 {

   241   execsql {

   242     UPDATE t4 SET x=12, y=2;

   243     SELECT * FROM t4

   244   }

   245 } {12 2}

   246 do_test check-4.4 {

   247   execsql {

   248     UPDATE t4 SET x=12, y=-22;

   249     SELECT * FROM t4

   250   }

   251 } {12 -22}

   252 do_test check-4.5 {

   253   catchsql {

   254     UPDATE t4 SET x=0, y=1;

   255   }

   256 } {1 {constraint failed}}

   257 do_test check-4.6 {

   258   execsql {

   259     SELECT * FROM t4;

   260   }

   261 } {12 -22}

   262 do_test check-4.7 {

   263   execsql {

   264     PRAGMA ignore_check_constraints=ON;

   265     UPDATE t4 SET x=0, y=1;

   266     SELECT * FROM t4;

   267   }

   268 } {0 1}

   269 do_test check-4.8 {

   270   catchsql {

   271     PRAGMA ignore_check_constraints=OFF;

   272     UPDATE t4 SET x=0, y=2;

   273   }

   274 } {1 {constraint failed}}

   275 ifcapable vacuum {

   276   do_test check_4.9 {

   277     catchsql {

   278       VACUUM

   279     }

   280   } {0 {}}

   281 }

   282 

   283 do_test check-5.1 {

   284   catchsql {

   285     CREATE TABLE t5(x, y,

   286       CHECK( x*y<:abc )

   287     );

   288   }

   289 } {1 {parameters prohibited in CHECK constraints}}

   290 do_test check-5.2 {

   291   catchsql {

   292     CREATE TABLE t5(x, y,

   293       CHECK( x*y<? )

   294     );

   295   }

   296 } {1 {parameters prohibited in CHECK constraints}}

   297 

   298 ifcapable conflict {

   299 

   300 do_test check-6.1 {

   301   execsql {SELECT * FROM t1}

   302 } {4 11.0}

   303 do_test check-6.2 {

   304   execsql {

   305     UPDATE OR IGNORE t1 SET x=5;

   306     SELECT * FROM t1;

   307   }

   308 } {4 11.0}

   309 do_test check-6.3 {

   310   execsql {

   311     INSERT OR IGNORE INTO t1 VALUES(5,4.0);

   312     SELECT * FROM t1;

   313   }

   314 } {4 11.0}

   315 do_test check-6.4 {

   316   execsql {

   317     INSERT OR IGNORE INTO t1 VALUES(2,20.0);

   318     SELECT * FROM t1;

   319   }

   320 } {4 11.0 2 20.0}

   321 do_test check-6.5 {

   322   catchsql {

   323     UPDATE OR FAIL t1 SET x=7-x, y=y+1;

   324   }

   325 } {1 {constraint failed}}

   326 do_test check-6.6 {

   327   execsql {

   328     SELECT * FROM t1;

   329   }

   330 } {3 12.0 2 20.0}

   331 do_test check-6.7 {

   332   catchsql {

   333     BEGIN;

   334     INSERT INTO t1 VALUES(1,30.0);

   335     INSERT OR ROLLBACK INTO t1 VALUES(8,40.0);

   336   }

   337 } {1 {constraint failed}}

   338 do_test check-6.8 {

   339   catchsql {

   340     COMMIT;

   341   }

   342 } {1 {cannot commit - no transaction is active}}

   343 do_test check-6.9 {

   344   execsql {

   345     SELECT * FROM t1

   346   }

   347 } {3 12.0 2 20.0}

   348 

   349 do_test check-6.11 {

   350   execsql {SELECT * FROM t1}

   351 } {3 12.0 2 20.0}

   352 do_test check-6.12 {

   353   catchsql {

   354     REPLACE INTO t1 VALUES(6,7);

   355   }

   356 } {1 {constraint failed}}

   357 do_test check-6.13 {

   358   execsql {SELECT * FROM t1}

   359 } {3 12.0 2 20.0}

   360 do_test check-6.14 {

   361   catchsql {

   362     INSERT OR IGNORE INTO t1 VALUES(6,7);

   363   }

   364 } {0 {}}

   365 do_test check-6.15 {

   366   execsql {SELECT * FROM t1}

   367 } {3 12.0 2 20.0}

   368 

   369 

   370 }

   371 

   372 finish_test