SQLite

#
# pager1-1.*: Test inter-process locking (clients in multiple processes).
#
# pager1-2.*: Test intra-process locking (multiple clients in this process).
#
# pager1-3.*: Savepoint related tests.
#
# pager1-4.*: Hot-journal related tests.
#

proc do_execsql_test {testname sql result} {
  uplevel do_test $testname [list "execsql {$sql}"] [list $result]
}
proc do_catchsql_test {testname sql result} {
  uplevel do_test $testname [list "catchsql {$sql}"] [list $result]
}

} {3 0}
do_catchsql_test pager1-3.3 {
    INSERT INTO t1 SELECT a+3, randomblob(1500) FROM t1
} {1 {constraint failed}}
do_execsql_test pager1-3.4 { SELECT * FROM counter } {3 0}
do_execsql_test pager1-3.5 { SELECT a FROM t1 } {1 2 3}
do_execsql_test pager1-3.6 { COMMIT } {}

testvfs tv -default 1
foreach code [list {
  set s 512
  set sql { PRAGMA synchronous = off }
} {
  set s 1024
  set sql { PRAGMA journal_mode = memory }
} {
  set s 2048
  tv devchar safe_append
} {
  set s 4096
  set sql { PRAGMA journal_mode = WAL }
}] {
  eval $code
  tv sectorsize $s
  
  do_test pager1-3.7.$s.1 {
    faultsim_delete_and_reopen
    execsql $sql
    execsql {
      PRAGMA cache_size = 10;
      CREATE TABLE t1(i INTEGER PRIMARY KEY, j blob);
    }
  } {}

  set tn 0
  set lowpoint 0
  foreach x {
    70 22 96 59 96 50 22 56 21 16 37 64 43 40  0 38 22 38 55  0  6   
    43 62 32 93 54 18 13 29 45 66 29 25 61 31 53 82 75 25 96 86 10 69   
     2 29  6 60 80 95 42 82 85 50 68 96 90 39 78 69 87 97 48 74 65 43   
  x
    86 34 26 50 41 85 58 44 89 22  6 51 45 46 58 32 97  6  1 12 32  2   
    69 39 48 71 33 31  5 58 90 43 24 54 12  9 18 57  4 38 91 42 27 45   
    50 38 56 29 10  0 26 37 83  1 78 15 47 30 75 62 46 29 68  5 30  4   
    27 96 33 95 79 75 56 10 29 70 32 75 52 88  5 36 50 57 46 63 88 65   
  x
    44 95 64 20 24 35 69 61 61  2 35 92 42 46 23 98 78  1 38 72 79 35   
    94 37 13 59  5 93 27 58 80 75 58  7 67 13 10 76 84  4  8 70 81 45   
     8 41 98  5 60 26 92 29 91 90  2 62 40  4  5 22 80 15 83 76 52 88   
    29  5 68 73 72  7 54 17 89 32 81 94 51 28 53 71  8 42 54 59 70 79   
  x
    35 59 37 22  8 72 10 48 79  6 87 96 59 95 45 56  6  4 86 68 25 28   
    43 75 47  9 53 18 69 51 11 94 86 65 23 87 49 19 20 20 33 14 11 86   
    42 23  8 40 94 55  4 38 52 30  6 25 44 79 57 82 30 87 86 75 40 92   
    29 26 82 91 67 64 15 51 17 11 15 27 32  7 38  1 52 82 26 99 17 18   
    38 13 20 65 91 98 50 81 49 15 94 45 84 35 31 67 13 43 78  3 94 77   
    47 18 96 66 99 77 11 11 70 18  1 29 79 57 59 86 94 34 91 15 24 53   
    61 73 58 46 36 79 90 89 12  0 91  0 86 44 71 83 75 76 97 65 13 80   
    42 39 15 44 90 18 67 69  1 72 17 99 12 72 77 17  3 34 75 59 92 76   
    18 86 60 12 20 98 48 14 12 67 45 44 10  2  5 88  7 45  5 47 45 75   
    19 25 42 62 66 17 94 63  0 53 38 81 26 11 97 33 13 36 81 82 73 26   
    78 90 28 78 26 61  9 74 70 53 17 86 51 90  3 30 99  5 25 44  6 72   
    84 32 74 46 16 44 74 82 84  9 58 90 85 82 53 40 37 
  } {
    incr tn
    set now [db one {SELECT count(i) FROM t1}]
    if {$x == "x"} {
      execsql { COMMIT ; BEGIN }
      set lowpoint $now
      do_test pager1.3.7.$s.2.$tn { 
        sqlite3 db2 test.db
        execsql {
          SELECT COALESCE(max(i), 0) FROM t1;
          PRAGMA integrity_check;
        } 
      } [list $lowpoint ok]
      db2 close
    } else {
      if {$now > $x } {
        if { $x>=$lowpoint } {
          execsql "ROLLBACK TO sp_$x"
        } else {
          execsql "DELETE FROM t1 WHERE i>$x"
          set lowpoint $x
        }
      } elseif {$now < $x} {
        for {set k $now} {$k < $x} {incr k} {
          execsql "SAVEPOINT sp_$k"
          execsql { INSERT INTO t1(j) VALUES(randomblob(1500)) }
        }
      }
      do_execsql_test pager1.3.7.$s.2.$tn { 
        SELECT COALESCE(max(i), 0) FROM t1;
        PRAGMA integrity_check;
      } [list $x ok]
    }
  }
}
db close
tv delete

#-------------------------------------------------------------------------
# Hot journal rollback related test cases.
#
# pager1.4.1.*: Test that the pager module deletes very small invalid
#               journal files.
#