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

     1  # 2015 November 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  #
    12  # Test the __hidden__ hack.
    13  #
    14  
    15  set testdir [file dirname $argv0]
    16  source $testdir/tester.tcl
    17  set testprefix hidden
    18  
    19  ifcapable !hiddencolumns {
    20    finish_test
    21    return
    22  }
    23  
    24  do_execsql_test 1.1 {
    25    CREATE TABLE t1(__hidden__a, b);
    26    INSERT INTO t1 VALUES('1');
    27    INSERT INTO t1(__hidden__a, b) VALUES('x', 'y');
    28  } {}
    29  
    30  do_execsql_test 1.2 {
    31    SELECT * FROM t1;
    32  } {1 y}
    33  
    34  do_execsql_test 1.3 {
    35    SELECT __hidden__a, * FROM t1;
    36  } {{} 1 x y}
    37  
    38  foreach {tn view} {
    39    1 { CREATE VIEW v1(a, b, __hidden__c) AS SELECT a, b, c FROM x1 }
    40    2 { CREATE VIEW v1 AS SELECT a, b, c AS __hidden__c FROM x1 }
    41  } {
    42    do_execsql_test 2.$tn.1 {
    43      DROP TABLE IF EXISTS x1;
    44      CREATE TABLE x1(a, b, c);
    45      INSERT INTO x1 VALUES(1, 2, 3);
    46    }
    47  
    48    catchsql { DROP VIEW v1 }
    49    execsql $view
    50  
    51    do_execsql_test 2.$tn.2 {
    52      SELECT a, b, __hidden__c FROM v1;
    53    } {1 2 3}
    54    
    55    do_execsql_test 2.$tn.3 {
    56      SELECT * FROM v1;
    57    } {1 2}
    58    
    59    do_execsql_test 2.$tn.4 {
    60      CREATE TRIGGER tr1 INSTEAD OF INSERT ON v1 BEGIN
    61        INSERT INTO x1 VALUES(new.a, new.b, new.__hidden__c);
    62      END;
    63    
    64      INSERT INTO v1 VALUES(4, 5);
    65      SELECT * FROM x1;
    66    } {1 2 3 4 5 {}}
    67    
    68    do_execsql_test 2.$tn.5 {
    69      INSERT INTO v1(a, b, __hidden__c) VALUES(7, 8, 9);
    70      SELECT * FROM x1;
    71    } {1 2 3 4 5 {} 7 8 9}
    72  }
    73  
    74  #-------------------------------------------------------------------------
    75  # Test INSERT INTO ... SELECT ... statements that write to tables with
    76  # hidden columns.
    77  #
    78  do_execsql_test 3.1 {
    79    CREATE TABLE t4(a, __hidden__b, c);
    80    INSERT INTO t4 SELECT 1, 2;
    81    SELECT a, __hidden__b, c FROM t4;
    82  } {1 {} 2}
    83  
    84  do_execsql_test 3.2.1 {
    85    CREATE TABLE t5(__hidden__a, b, c);
    86    CREATE TABLE t6(__hidden__a, b, c);
    87    INSERT INTO t6(__hidden__a, b, c) VALUES(1, 2, 3);
    88    INSERT INTO t6(__hidden__a, b, c) VALUES(4, 5, 6);
    89    INSERT INTO t6(__hidden__a, b, c) VALUES(7, 8, 9);
    90  }
    91  
    92  do_execsql_test 3.2.2 {
    93    INSERT INTO t5 SELECT * FROM t6;
    94    SELECT * FROM t5;
    95  } {2 3   5 6   8 9}
    96  
    97  do_execsql_test 3.2.3 {
    98    SELECT __hidden__a FROM t5;
    99  } {{} {} {}}
   100  
   101  
   102  do_execsql_test 3.3.1 {
   103    CREATE TABLE t5a(a, b, __hidden__c);
   104    CREATE TABLE t6a(a, b, __hidden__c);
   105    INSERT INTO t6a(a, b, __hidden__c) VALUES(1, 2, 3);
   106    INSERT INTO t6a(a, b, __hidden__c) VALUES(4, 5, 6);
   107    INSERT INTO t6a(a, b, __hidden__c) VALUES(7, 8, 9);
   108  }
   109  
   110  do_execsql_test 3.3.2 {
   111    INSERT INTO t5a SELECT * FROM t6a;
   112    SELECT * FROM t5a;
   113  } {1 2   4 5   7 8}
   114  
   115  do_execsql_test 3.3.3 {
   116    SELECT __hidden__c FROM t5a;
   117  } {{} {} {}}
   118  
   119  do_execsql_test 3.4.1 {
   120    CREATE TABLE t5b(a, __hidden__b, c);
   121    CREATE TABLE t6b(a, b, __hidden__c);
   122    INSERT INTO t6b(a, b, __hidden__c) VALUES(1, 2, 3);
   123    INSERT INTO t6b(a, b, __hidden__c) VALUES(4, 5, 6);
   124    INSERT INTO t6b(a, b, __hidden__c) VALUES(7, 8, 9);
   125  }
   126  
   127  do_execsql_test 3.4.2 {
   128    INSERT INTO t5b SELECT * FROM t6b;
   129    SELECT * FROM t5b;
   130  } {1 2   4 5   7 8}
   131  
   132  do_execsql_test 3.4.3 {
   133    SELECT __hidden__b FROM t5b;
   134  } {{} {} {}}
   135  
   136  #-------------------------------------------------------------------------
   137  # Test VACUUM
   138  #
   139  reset_db
   140  do_execsql_test 4.1 {
   141    CREATE TABLE t1(a, __hidden__b, c UNIQUE);
   142    INSERT INTO t1(a, __hidden__b, c) VALUES(1, 2, 3);
   143    INSERT INTO t1(a, __hidden__b, c) VALUES(4, 5, 6);
   144    INSERT INTO t1(a, __hidden__b, c) VALUES(7, 8, 9);
   145    DELETE FROM t1 WHERE __hidden__b = 5;
   146    SELECT rowid, a, __hidden__b, c FROM t1;
   147  } {1 1 2 3   3 7 8 9}
   148  do_execsql_test 4.2 {
   149    VACUUM;
   150    SELECT rowid, a, __hidden__b, c FROM t1;
   151  } {1 1 2 3   3 7 8 9}
   152  
   153  finish_test