Import SQLite 3.7.6.3.

third_party/sqlite/src/test/pagerfault3.test

+# 2011 January 28
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+source $testdir/malloc_common.tcl
+
+if {[permutation] == "inmemory_journal"} {
+  finish_test
+  return
+}
+
+# Create a database with page-size 2048 bytes that uses 2 pages. Populate
+# it so that if the page-size is changed to 1024 bytes and the db vacuumed, 
+# the new db size is 3 pages.
+#
+do_test pagerfault3-pre1 {
+  execsql {
+    PRAGMA auto_vacuum = 0;
+    PRAGMA page_size = 2048;
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(randomblob(1200));
+    PRAGMA page_count;
+  }
+} {2}
+do_test pagerfault3-pre2 {
+  faultsim_save_and_close
+  faultsim_restore_and_reopen
+  execsql { 
+    PRAGMA page_size = 1024;
+    VACUUM;
+    PRAGMA page_count;
+  }
+} {3}
+
+# Now do the page-size change and VACUUM with IO error injection. When
+# an IO error is injected into the final xSync() of the commit, the pager
+# will have to extend the db file from 3072 to 4096 byts when rolling
+# back the hot-journal file. This is a special case in pager_truncate().
+#
+do_faultsim_test pagerfault3-1 -faults ioerr-transient -prep {
+  faultsim_restore_and_reopen
+} -body {
+  execsql { 
+    PRAGMA page_size = 1024;
+    VACUUM;
+  }
+} -test {
+  faultsim_test_result {0 {}} 
+  faultsim_integrity_check
+}
+
+finish_test
+