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+# 2010 July 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.
+#
+#***********************************************************************
+#
+# The focus of this file is testing the CLI shell tool.
+# These tests are specific to the .stats command.
+#
+# $Id: shell4.test,v 1.7 2009/07/17 16:54:48 shaneh Exp $
+#
+
+# Test plan:
+#
+#   shell4-1.*: Basic tests specific to the "stats" command.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+if {$tcl_platform(platform)=="windows"} {
+  set CLI "sqlite3.exe"
+} else {
+  set CLI "./sqlite3"
+}
+if {![file executable $CLI]} {
+  finish_test
+  return
+}
+db close
+forcedelete test.db test.db-journal test.db-wal
+sqlite3 db test.db
+
+#----------------------------------------------------------------------------
+# Test cases shell4-1.*: Tests specific to the "stats" command.
+#
+
+# should default to off
+do_test shell4-1.1.1 {
+  set res [catchcmd "test.db" ".show"]
+  list [regexp {stats: off} $res]
+} {1}
+
+do_test shell4-1.1.2 {
+  set res [catchcmd "test.db" ".show"]
+  list [regexp {stats: on} $res]
+} {0}
+
+# -stats should turn it on
+do_test shell4-1.2.1 {
+  set res [catchcmd "-stats test.db" ".show"]
+  list [regexp {stats: on} $res]
+} {1}
+
+do_test shell4-1.2.2 {
+  set res [catchcmd "-stats test.db" ".show"]
+  list [regexp {stats: off} $res]
+} {0}
+
+# .stats ON|OFF          Turn stats on or off
+do_test shell4-1.3.1 {
+  catchcmd "test.db" ".stats"
+} {1 {Error: unknown command or invalid arguments:  "stats". Enter ".help" for help}}
+do_test shell4-1.3.2 {
+  catchcmd "test.db" ".stats ON"
+} {0 {}}
+do_test shell4-1.3.3 {
+  catchcmd "test.db" ".stats OFF"
+} {0 {}}
+do_test shell4-1.3.4 {
+  # too many arguments
+  catchcmd "test.db" ".stats OFF BAD"
+} {1 {Error: unknown command or invalid arguments:  "stats". Enter ".help" for help}}
+
+# NB. whitespace is important
+do_test shell4-1.4.1 {
+  set res [catchcmd "test.db" {.show}]
+  list [regexp {stats: off} $res]
+} {1}
+
+do_test shell4-1.4.2 {
+  set res [catchcmd "test.db" {.stats ON
+.show
+}]
+  list [regexp {stats: on} $res]
+} {1}
+
+do_test shell4-1.4.3 {
+  set res [catchcmd "test.db" {.stats OFF
+.show
+}]
+  list [regexp {stats: off} $res]
+} {1}
+
+# make sure stats not present when off
+do_test shell4-1.5.1 {
+  set res [catchcmd "test.db" {SELECT 1;}]
+  list [regexp {Memory Used} $res] \
+       [regexp {Heap Usage} $res] \
+       [regexp {Autoindex Inserts} $res]
+} {0 0 0}
+
+# make sure stats are present when on
+do_test shell4-1.5.2 {
+  set res [catchcmd "test.db" {.stats ON
+SELECT 1;
+}]
+  list [regexp {Memory Used} $res] \
+       [regexp {Heap Usage} $res] \
+       [regexp {Autoindex Inserts} $res]
+} {1 1 1}
+
+finish_test