--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/persistentstorage/sqlite3api/TEST/TclScript/ptrchng.test Fri Jan 22 11:06:30 2010 +0200
@@ -0,0 +1,223 @@
+# 2007 April 27
+#
+# 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 file implements regression tests for SQLite library.
+#
+# The focus of the tests in this file are to verify that the
+# underlying TEXT or BLOB representation of an sqlite3_value
+# changes appropriately when APIs from the following set are
+# called:
+#
+# sqlite3_value_text()
+# sqlite3_value_text16()
+# sqlite3_value_blob()
+# sqlite3_value_bytes()
+# sqlite3_value_bytes16()
+#
+# $Id: ptrchng.test,v 1.5 2008/07/12 14:52:20 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !bloblit {
+ finish_test
+ return
+}
+
+# Register the "pointer_change" SQL function.
+#
+sqlite3_create_function db
+
+do_test ptrchng-1.1 {
+ execsql {
+ CREATE TABLE t1(x INTEGER PRIMARY KEY, y BLOB);
+ INSERT INTO t1 VALUES(1, 'abc');
+ INSERT INTO t1 VALUES(2,
+ 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234356789');
+ INSERT INTO t1 VALUES(3, x'626c6f62');
+ INSERT INTO t1 VALUES(4,
+ x'000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f2021222324'
+ );
+ SELECT count(*) FROM t1;
+ }
+} {4}
+
+# For the short entries that fit in the Mem.zBuf[], the pointer should
+# never change regardless of what type conversions occur.
+#
+# UPDATE: No longer true, as Mem.zBuf[] has been removed.
+#
+do_test ptrchng-2.1 {
+ execsql {
+ SELECT pointer_change(y, 'text', 'noop', 'blob') FROM t1 WHERE x=1
+ }
+} {0}
+do_test ptrchng-2.2 {
+ execsql {
+ SELECT pointer_change(y, 'blob', 'noop', 'text') FROM t1 WHERE x=1
+ }
+} {0}
+ifcapable utf16 {
+ do_test ptrchng-2.3 {
+ execsql {
+ SELECT pointer_change(y, 'text', 'noop', 'text16') FROM t1 WHERE x=1
+ }
+ } {1}
+ do_test ptrchng-2.4 {
+ execsql {
+ SELECT pointer_change(y, 'blob', 'noop', 'text16') FROM t1 WHERE x=1
+ }
+ } {1}
+ do_test ptrchng-2.5 {
+ execsql {
+ SELECT pointer_change(y, 'text16', 'noop', 'blob') FROM t1 WHERE x=1
+ }
+ } {0}
+ do_test ptrchng-2.6 {
+ execsql {
+ SELECT pointer_change(y, 'text16', 'noop', 'text') FROM t1 WHERE x=1
+ }
+ } {1}
+}
+do_test ptrchng-2.11 {
+ execsql {
+ SELECT pointer_change(y, 'text', 'noop', 'blob') FROM t1 WHERE x=3
+ }
+} {0}
+do_test ptrchng-2.12 {
+ execsql {
+ SELECT pointer_change(y, 'blob', 'noop', 'text') FROM t1 WHERE x=3
+ }
+} {0}
+ifcapable utf16 {
+ do_test ptrchng-2.13 {
+ execsql {
+ SELECT pointer_change(y, 'text', 'noop', 'text16') FROM t1 WHERE x=3
+ }
+ } {1}
+ do_test ptrchng-2.14 {
+ execsql {
+ SELECT pointer_change(y, 'blob', 'noop', 'text16') FROM t1 WHERE x=3
+ }
+ } {1}
+ do_test ptrchng-2.15 {
+ execsql {
+ SELECT pointer_change(y, 'text16', 'noop', 'blob') FROM t1 WHERE x=3
+ }
+ } {0}
+ do_test ptrchng-2.16 {
+ execsql {
+ SELECT pointer_change(y, 'text16', 'noop', 'text') FROM t1 WHERE x=3
+ }
+ } {1}
+}
+
+# For the long entries that do not fit in the Mem.zBuf[], the pointer
+# should change sometimes.
+#
+do_test ptrchng-3.1 {
+ execsql {
+ SELECT pointer_change(y, 'text', 'noop', 'blob') FROM t1 WHERE x=2
+ }
+} {0}
+do_test ptrchng-3.2 {
+ execsql {
+ SELECT pointer_change(y, 'blob', 'noop', 'text') FROM t1 WHERE x=2
+ }
+} {0}
+ifcapable utf16 {
+ do_test ptrchng-3.3 {
+ execsql {
+ SELECT pointer_change(y, 'text', 'noop', 'text16') FROM t1 WHERE x=2
+ }
+ } {1}
+ do_test ptrchng-3.4 {
+ execsql {
+ SELECT pointer_change(y, 'blob', 'noop', 'text16') FROM t1 WHERE x=2
+ }
+ } {1}
+ do_test ptrchng-3.5 {
+ execsql {
+ SELECT pointer_change(y, 'text16', 'noop', 'blob') FROM t1 WHERE x=2
+ }
+ } {0}
+ do_test ptrchng-3.6 {
+ execsql {
+ SELECT pointer_change(y, 'text16', 'noop', 'text') FROM t1 WHERE x=2
+ }
+ } {1}
+}
+do_test ptrchng-3.11 {
+ execsql {
+ SELECT pointer_change(y, 'text', 'noop', 'blob') FROM t1 WHERE x=4
+ }
+} {0}
+do_test ptrchng-3.12 {
+ execsql {
+ SELECT pointer_change(y, 'blob', 'noop', 'text') FROM t1 WHERE x=4
+ }
+} {0}
+ifcapable utf16 {
+ do_test ptrchng-3.13 {
+ execsql {
+ SELECT pointer_change(y, 'text', 'noop', 'text16') FROM t1 WHERE x=4
+ }
+ } {1}
+ do_test ptrchng-3.14 {
+ execsql {
+ SELECT pointer_change(y, 'blob', 'noop', 'text16') FROM t1 WHERE x=4
+ }
+ } {1}
+ do_test ptrchng-3.15 {
+ execsql {
+ SELECT pointer_change(y, 'text16', 'noop', 'blob') FROM t1 WHERE x=4
+ }
+ } {0}
+ do_test ptrchng-3.16 {
+ execsql {
+ SELECT pointer_change(y, 'text16', 'noop', 'text') FROM t1 WHERE x=4
+ }
+ } {1}
+}
+
+# A call to _bytes() should never reformat a _text() or _blob().
+#
+do_test ptrchng-4.1 {
+ execsql {
+ SELECT pointer_change(y, 'text', 'bytes', 'text') FROM t1
+ }
+} {0 0 0 0}
+do_test ptrchng-4.2 {
+ execsql {
+ SELECT pointer_change(y, 'blob', 'bytes', 'blob') FROM t1
+ }
+} {0 0 0 0}
+
+# A call to _blob() should never trigger a reformat
+#
+do_test ptrchng-5.1 {
+ execsql {
+ SELECT pointer_change(y, 'text', 'bytes', 'blob') FROM t1
+ }
+} {0 0 0 0}
+ifcapable utf16 {
+ do_test ptrchng-5.2 {
+ execsql {
+ SELECT pointer_change(y, 'text16', 'noop', 'blob') FROM t1
+ }
+ } {0 0 0 0}
+ do_test ptrchng-5.3 {
+ execsql {
+ SELECT pointer_change(y, 'text16', 'bytes16', 'blob') FROM t1
+ }
+ } {0 0 0 0}
+}
+
+finish_test