gitlab.com/CoiaPrant/sqlite3@v1.19.1/testdata/tcl/trigger7.test (about)

     1  # 2005 August 18
     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.
    12  #
    13  # This file implements tests to increase coverage of trigger.c.
    14  #
    15  # $Id: trigger7.test,v 1.3 2008/08/11 18:44:58 drh Exp $
    16  
    17  set testdir [file dirname $argv0]
    18  source $testdir/tester.tcl
    19  ifcapable {!trigger} {
    20    finish_test
    21    return
    22  }
    23  
    24  # Error messages resulting from qualified trigger names.
    25  #
    26  do_test trigger7-1.1 {
    27    execsql {
    28      CREATE TABLE t1(x, y);
    29    }
    30    catchsql {
    31      CREATE TEMP TRIGGER main.r1 AFTER INSERT ON t1 BEGIN
    32        SELECT 'no nothing';
    33      END
    34    }
    35  } {1 {temporary trigger may not have qualified name}}
    36  do_test trigger7-1.2 {
    37    catchsql {
    38      CREATE TRIGGER not_a_db.r1 AFTER INSERT ON t1 BEGIN
    39        SELECT 'no nothing';
    40      END
    41    }
    42  } {1 {unknown database not_a_db}}
    43  
    44  
    45  # When the UPDATE OF syntax is used, no code is generated for triggers
    46  # that do not match the update columns.
    47  #
    48  ifcapable explain {
    49    do_test trigger7-2.1 {
    50      execsql {
    51        CREATE TRIGGER r1 AFTER UPDATE OF x ON t1 BEGIN
    52          SELECT '___update_t1.x___';
    53        END;
    54        CREATE TRIGGER r2 AFTER UPDATE OF y ON t1 BEGIN
    55          SELECT '___update_t1.y___';
    56        END;
    57      }
    58      set txt [db eval {EXPLAIN UPDATE t1 SET x=5}]
    59      string match *___update_t1.x___* $txt
    60    } 1
    61    do_test trigger7-2.2 {
    62      set txt [db eval {EXPLAIN UPDATE t1 SET x=5}]
    63      string match *___update_t1.y___* $txt
    64    } 0
    65    do_test trigger7-2.3 {
    66      set txt [db eval {EXPLAIN UPDATE t1 SET y=5}]
    67      string match *___update_t1.x___* $txt
    68    } 0
    69    do_test trigger7-2.4 {
    70      set txt [db eval {EXPLAIN UPDATE t1 SET y=5}]
    71      string match *___update_t1.y___* $txt
    72    } 1
    73    do_test trigger7-2.5 {
    74      set txt [db eval {EXPLAIN UPDATE t1 SET rowid=5}]
    75      string match *___update_t1.x___* $txt
    76    } 0
    77    do_test trigger7-2.6 {
    78      set txt [db eval {EXPLAIN UPDATE t1 SET rowid=5}]
    79      string match *___update_t1.x___* $txt
    80    } 0
    81  }
    82  
    83  # Test the ability to create many triggers on the same table, then
    84  # selectively drop those triggers.
    85  #
    86  do_test trigger7-3.1 {
    87    execsql {
    88      CREATE TABLE t2(x,y,z);
    89      CREATE TRIGGER t2r1 AFTER INSERT ON t2 BEGIN SELECT 1; END;
    90      CREATE TRIGGER t2r2 BEFORE INSERT ON t2 BEGIN SELECT 1; END;
    91      CREATE TRIGGER t2r3 AFTER UPDATE ON t2 BEGIN SELECT 1; END;
    92      CREATE TRIGGER t2r4 BEFORE UPDATE ON t2 BEGIN SELECT 1; END;
    93      CREATE TRIGGER t2r5 AFTER DELETE ON t2 BEGIN SELECT 1; END;
    94      CREATE TRIGGER t2r6 BEFORE DELETE ON t2 BEGIN SELECT 1; END;
    95      CREATE TRIGGER t2r7 AFTER INSERT ON t2 BEGIN SELECT 1; END;
    96      CREATE TRIGGER t2r8 BEFORE INSERT ON t2 BEGIN SELECT 1; END;
    97      CREATE TRIGGER t2r9 AFTER UPDATE ON t2 BEGIN SELECT 1; END;
    98      CREATE TRIGGER t2r10 BEFORE UPDATE ON t2 BEGIN SELECT 1; END;
    99      CREATE TRIGGER t2r11 AFTER DELETE ON t2 BEGIN SELECT 1; END;
   100      CREATE TRIGGER t2r12 BEFORE DELETE ON t2 BEGIN SELECT 1; END;
   101      DROP TRIGGER t2r6;
   102    }
   103  } {}
   104  
   105  # This test corrupts the database file so it must be the last test
   106  # in the series.
   107  #
   108  do_test trigger7-99.1 {
   109    sqlite3_db_config db DEFENSIVE 0
   110    execsql {
   111      PRAGMA writable_schema=on;
   112      UPDATE sqlite_master SET sql='nonsense';
   113    }
   114    db close
   115    catch { sqlite3 db test.db }
   116    catchsql { DROP TRIGGER t2r5 }
   117  } {/1 {malformed database schema .*}/}
   118  
   119  finish_test