| # 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 |