modernc.org/cc@v1.0.1/v2/testdata/_sqlite/ext/fts5/test/fts5corrupt.test (about)

     1  # 2014 Dec 20
     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  # This file tests that the FTS5 'integrity-check' command detects 
    13  # inconsistencies (corruption) in the on-disk backing tables.
    14  #
    15  
    16  source [file join [file dirname [info script]] fts5_common.tcl]
    17  set testprefix fts5corrupt
    18  
    19  # If SQLITE_ENABLE_FTS5 is defined, omit this file.
    20  ifcapable !fts5 {
    21    finish_test
    22    return
    23  }
    24  
    25  do_execsql_test 1.0 {
    26    CREATE VIRTUAL TABLE t1 USING fts5(x);
    27    INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
    28  }
    29  
    30  do_test 1.1 {
    31    db transaction {
    32      for {set i 1} {$i < 200} {incr i} {
    33        set doc [list [string repeat x $i] [string repeat y $i]]
    34        execsql { INSERT INTO t1(rowid, x) VALUES($i, $doc) }
    35      }
    36    }
    37    fts5_level_segs t1
    38  } {1}
    39  db_save
    40  
    41  do_execsql_test 1.2 { INSERT INTO t1(t1) VALUES('integrity-check') }
    42  set segid [lindex [fts5_level_segids t1] 0]
    43  
    44  do_test 1.3 {
    45    execsql {
    46      DELETE FROM t1_data WHERE rowid = fts5_rowid('segment', $segid, 4);
    47    }
    48    catchsql { INSERT INTO t1(t1) VALUES('integrity-check') }
    49  } {1 {database disk image is malformed}}
    50  
    51  do_test 1.4 {
    52    db_restore_and_reopen
    53    execsql {
    54      UPDATE t1_data set block = X'00000000' || substr(block, 5) WHERE
    55      rowid = fts5_rowid('segment', $segid, 4);
    56    }
    57    catchsql { INSERT INTO t1(t1) VALUES('integrity-check') }
    58  } {1 {database disk image is malformed}}
    59  
    60  db_restore_and_reopen
    61  #db eval {SELECT rowid, fts5_decode(rowid, block) aS r FROM t1_data} {puts $r}
    62  
    63  
    64  #--------------------------------------------------------------------
    65  #
    66  do_execsql_test 2.0 {
    67    CREATE VIRTUAL TABLE t2 USING fts5(x);
    68    INSERT INTO t2(t2, rank) VALUES('pgsz', 64);
    69  }
    70  db func rnddoc fts5_rnddoc
    71  do_test 2.1 {
    72    for {set i 0} {$i < 500} {incr i} {
    73      execsql { INSERT INTO t2 VALUES(rnddoc(50)) }
    74    }
    75    execsql { INSERT INTO t2(t2) VALUES('integrity-check') }
    76  } {}
    77  
    78  #--------------------------------------------------------------------
    79  # A mundane test - missing row in the %_content table.
    80  #
    81  do_execsql_test 3.0 {
    82    CREATE VIRTUAL TABLE t3 USING fts5(x);
    83    INSERT INTO t3 VALUES('one o');
    84    INSERT INTO t3 VALUES('two e');
    85    INSERT INTO t3 VALUES('three o');
    86    INSERT INTO t3 VALUES('four e');
    87    INSERT INTO t3 VALUES('five o');
    88  }
    89  do_execsql_test 3.1 {
    90    SELECT * FROM t3 WHERE t3 MATCH 'o'
    91  } {{one o} {three o} {five o}}
    92  
    93  do_catchsql_test 3.1 {
    94    DELETE FROM t3_content WHERE rowid = 3;
    95    SELECT * FROM t3 WHERE t3 MATCH 'o';
    96  } {1 {database disk image is malformed}}
    97  
    98  finish_test