Test cases for sqlite3_db_config() and sqlite3_db_status(). (CVS 5518)

FossilOrigin-Name: 6a6b94302acdfe6404b04bff1cc8d16c1ef69df9

test/lookaside.test

@@ -0,0 +1,82 @@
+# 2008 August 01
+#
+# 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.
+#
+#***********************************************************************
+#
+# Tests for the lookaside memory allocator.
+#
+# $Id: lookaside.test,v 1.1 2008/08/01 16:31:14 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# Make sure sqlite3_db_config() and sqlite3_db_status are working.
+#
+do_test lookaside-1.1 {
+  catch {sqlite3_config_error db}
+} {0}
+do_test lookaside-1.2 {
+  sqlite3_db_config_lookaside db 20 20
+} {0}
+do_test lookaside-1.3 {
+  sqlite3_db_status db SQLITE_DBSTATUS_LOOKASIDE_USED 0
+} {0 0 0}
+do_test lookaside-1.4 {
+  db eval {CREATE TABLE t1(x);}
+  sqlite3_db_status db SQLITE_DBSTATUS_LOOKASIDE_USED 0
+} {0 7 20}
+do_test lookaside-1.5 {
+  sqlite3_db_status db SQLITE_DBSTATUS_LOOKASIDE_USED 1
+} {0 7 20}
+do_test lookaside-1.6 {
+  sqlite3_db_status db SQLITE_DBSTATUS_LOOKASIDE_USED 0
+} {0 7 7}
+do_test lookaside-1.7 {
+  db cache flush
+  sqlite3_db_status db SQLITE_DBSTATUS_LOOKASIDE_USED 0
+} {0 0 7}
+do_test lookaside-1.8 {
+  db cache flush
+  sqlite3_db_status db SQLITE_DBSTATUS_LOOKASIDE_USED 1
+} {0 0 7}
+do_test lookaside-1.9 {
+  db cache flush
+  sqlite3_db_status db SQLITE_DBSTATUS_LOOKASIDE_USED 0
+} {0 0 0}
+
+do_test lookaside-2.1 {
+  sqlite3_db_config_lookaside db 100 1000
+} {0}
+do_test lookaside-2.2 {
+  db eval {CREATE TABLE t2(x);}
+  sqlite3_db_status db SQLITE_DBSTATUS_LOOKASIDE_USED 0
+} {0 10 48}
+do_test lookaside-2.3 {
+  sqlite3_db_config_lookaside db 50 50
+} {5}  ;# SQLITE_BUSY
+do_test lookaside-2.4 {
+  db cache flush
+  sqlite3_db_config_lookaside db 50 50
+} {0}  ;# SQLITE_OK
+
+# sqlite3_db_status() with an invalid verb returns an error.
+#
+do_test lookaside-3.1 {
+  sqlite3_db_status db 99999 0
+} {1 0 0}
+
+# Test that an invalid verb on sqlite3_config() is detected and
+# reported as an error.
+#
+do_test lookaside-4.1 {
+  db close
+  sqlite3_shutdown
+  catch sqlite3_config_error
+} {0}
+sqlite3_initialize