File:  [ELWIX - Embedded LightWeight unIX -] / embedaddon / sqlite3 / test / pagerfault3.test
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs - revision graph
Tue Feb 21 17:04:16 2012 UTC (12 years, 10 months ago) by misho
Branches: sqlite3, MAIN
CVS tags: v3_7_10, HEAD
sqlite3

    1: # 2011 January 28
    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: 
   13: set testdir [file dirname $argv0]
   14: source $testdir/tester.tcl
   15: source $testdir/lock_common.tcl
   16: source $testdir/malloc_common.tcl
   17: 
   18: if {[permutation] == "inmemory_journal"} {
   19:   finish_test
   20:   return
   21: }
   22: 
   23: # Create a database with page-size 2048 bytes that uses 2 pages. Populate
   24: # it so that if the page-size is changed to 1024 bytes and the db vacuumed, 
   25: # the new db size is 3 pages.
   26: #
   27: do_test pagerfault3-pre1 {
   28:   execsql {
   29:     PRAGMA auto_vacuum = 0;
   30:     PRAGMA page_size = 2048;
   31:     CREATE TABLE t1(x);
   32:     INSERT INTO t1 VALUES(randomblob(1200));
   33:     PRAGMA page_count;
   34:   }
   35: } {2}
   36: do_test pagerfault3-pre2 {
   37:   faultsim_save_and_close
   38:   faultsim_restore_and_reopen
   39:   execsql { 
   40:     PRAGMA page_size = 1024;
   41:     VACUUM;
   42:     PRAGMA page_count;
   43:   }
   44: } {3}
   45: 
   46: # Now do the page-size change and VACUUM with IO error injection. When
   47: # an IO error is injected into the final xSync() of the commit, the pager
   48: # will have to extend the db file from 3072 to 4096 byts when rolling
   49: # back the hot-journal file. This is a special case in pager_truncate().
   50: #
   51: do_faultsim_test pagerfault3-1 -faults ioerr-transient -prep {
   52:   faultsim_restore_and_reopen
   53: } -body {
   54:   execsql { 
   55:     PRAGMA page_size = 1024;
   56:     VACUUM;
   57:   }
   58: } -test {
   59:   faultsim_test_result {0 {}} 
   60:   faultsim_integrity_check
   61: }
   62: 
   63: finish_test
   64: 

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