Get `gn gen` to succeed on Windows

third_party/sqlite/src/test/tkt2565.test

Index: third_party/sqlite/src/test/tkt2565.test
diff --git a/third_party/sqlite/src/test/tkt2565.test b/third_party/sqlite/src/test/tkt2565.test
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+# 2009 January 8
+#
+# 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.
+#
+#***********************************************************************
+#
+# This script attempts to reproduce the circumstances of ticket #2565.
+#
+# More specifically, this script attempts to generate rollback journals
+# that contain headers with nRec==0 that are followed by additional
+# valid headers.
+#
+# $Id: tkt2565.test,v 1.2 2009/04/09 01:23:49 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Use the alternative pcache and rig it to call pagerStress()
+# very frequently.
+#
+db close
+sqlite3_shutdown
+sqlite3_config_alt_pcache 1 100 0 1
+
+# Open two database connections to database "test.db".
+#
+proc reopen_database {} {
+  catch {db close}
+  sqlite3 db test.db
+  db cache size 0
+  execsql {
+    pragma page_size=512;
+    pragma auto_vacuum=2;
+    pragma cache_size=16;
+  }
+}
+
+# Open two database connections and create a single table in the db.
+#
+do_test tkt2565-1.0 {
+  reopen_database
+  execsql { CREATE TABLE A(Id INTEGER, Name TEXT) }
+} {}
+
+for {set iFail 1} {$iFail<200} {incr iFail} {
+  reopen_database
+  execsql { pragma locking_mode=exclusive }
+  set nRow [db one {SELECT count(*) FROM a}]
+  
+  # Dirty (at least) one of the pages in the cache.
+  do_test tkt2565-1.$iFail.1 {
+    execsql {
+      BEGIN EXCLUSIVE;
+      INSERT INTO a VALUES(1, 'ABCDEFGHIJKLMNOP');
+    }
+  } {}
+  
+  # Now try to commit the transaction. Cause an IO error to occur
+  # within this operation, which moves the pager into the error state.
+  #
+  set ::sqlite_io_error_persist 1
+  set ::sqlite_io_error_pending $iFail
+  do_test tkt2565-1.$iFail.2 {
+    set rc [catchsql {COMMIT}]
+    list
+  } {}
+  set ::sqlite_io_error_persist 0
+  set ::sqlite_io_error_pending 0
+  if {!$::sqlite_io_error_hit} break
+  set ::sqlite_io_error_hit 0
+}
+
+# Make sure this test script doesn't leave any files open.
+#
+do_test tkt2565-1.X {
+  catch { db close }
+  set sqlite_open_file_count
+} 0
+
+# Restore the pcache configuration for subsequent tests.
+#
+sqlite3_shutdown
+sqlite3_config_alt_pcache 0
+sqlite3_initialize
+autoinstall_test_functions
+
+finish_test