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# 2007 April 27
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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# This file implements regression tests for SQLite library.
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#
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# The focus of the tests in this file are to verify that the
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# underlying TEXT or BLOB representation of an sqlite3_value
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# changes appropriately when APIs from the following set are
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# called:
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#
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# sqlite3_value_text()
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# sqlite3_value_text16()
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# sqlite3_value_blob()
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# sqlite3_value_bytes()
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# sqlite3_value_bytes16()
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#
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# $Id: ptrchng.test,v 1.5 2008/07/12 14:52:20 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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ifcapable !bloblit {
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finish_test
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return
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}
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# Register the "pointer_change" SQL function.
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#
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sqlite3_create_function db
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do_test ptrchng-1.1 {
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execsql {
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CREATE TABLE t1(x INTEGER PRIMARY KEY, y BLOB);
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INSERT INTO t1 VALUES(1, 'abc');
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INSERT INTO t1 VALUES(2,
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'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234356789');
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INSERT INTO t1 VALUES(3, x'626c6f62');
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INSERT INTO t1 VALUES(4,
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x'000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f2021222324'
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);
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SELECT count(*) FROM t1;
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}
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} {4}
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# For the short entries that fit in the Mem.zBuf[], the pointer should
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# never change regardless of what type conversions occur.
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#
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# UPDATE: No longer true, as Mem.zBuf[] has been removed.
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#
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do_test ptrchng-2.1 {
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execsql {
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SELECT pointer_change(y, 'text', 'noop', 'blob') FROM t1 WHERE x=1
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}
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} {0}
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do_test ptrchng-2.2 {
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execsql {
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SELECT pointer_change(y, 'blob', 'noop', 'text') FROM t1 WHERE x=1
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}
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} {0}
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ifcapable utf16 {
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do_test ptrchng-2.3 {
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execsql {
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SELECT pointer_change(y, 'text', 'noop', 'text16') FROM t1 WHERE x=1
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}
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} {1}
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do_test ptrchng-2.4 {
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execsql {
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SELECT pointer_change(y, 'blob', 'noop', 'text16') FROM t1 WHERE x=1
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}
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} {1}
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do_test ptrchng-2.5 {
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execsql {
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SELECT pointer_change(y, 'text16', 'noop', 'blob') FROM t1 WHERE x=1
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}
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} {0}
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do_test ptrchng-2.6 {
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execsql {
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SELECT pointer_change(y, 'text16', 'noop', 'text') FROM t1 WHERE x=1
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}
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} {1}
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}
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do_test ptrchng-2.11 {
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execsql {
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SELECT pointer_change(y, 'text', 'noop', 'blob') FROM t1 WHERE x=3
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}
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} {0}
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do_test ptrchng-2.12 {
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execsql {
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SELECT pointer_change(y, 'blob', 'noop', 'text') FROM t1 WHERE x=3
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}
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} {0}
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ifcapable utf16 {
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do_test ptrchng-2.13 {
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execsql {
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SELECT pointer_change(y, 'text', 'noop', 'text16') FROM t1 WHERE x=3
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}
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} {1}
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do_test ptrchng-2.14 {
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execsql {
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SELECT pointer_change(y, 'blob', 'noop', 'text16') FROM t1 WHERE x=3
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}
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} {1}
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do_test ptrchng-2.15 {
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execsql {
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SELECT pointer_change(y, 'text16', 'noop', 'blob') FROM t1 WHERE x=3
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}
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} {0}
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do_test ptrchng-2.16 {
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execsql {
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SELECT pointer_change(y, 'text16', 'noop', 'text') FROM t1 WHERE x=3
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}
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} {1}
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}
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# For the long entries that do not fit in the Mem.zBuf[], the pointer
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# should change sometimes.
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#
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do_test ptrchng-3.1 {
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execsql {
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SELECT pointer_change(y, 'text', 'noop', 'blob') FROM t1 WHERE x=2
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}
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} {0}
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do_test ptrchng-3.2 {
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execsql {
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SELECT pointer_change(y, 'blob', 'noop', 'text') FROM t1 WHERE x=2
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}
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} {0}
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ifcapable utf16 {
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do_test ptrchng-3.3 {
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execsql {
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SELECT pointer_change(y, 'text', 'noop', 'text16') FROM t1 WHERE x=2
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}
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} {1}
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do_test ptrchng-3.4 {
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execsql {
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SELECT pointer_change(y, 'blob', 'noop', 'text16') FROM t1 WHERE x=2
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}
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} {1}
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do_test ptrchng-3.5 {
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execsql {
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SELECT pointer_change(y, 'text16', 'noop', 'blob') FROM t1 WHERE x=2
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}
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} {0}
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do_test ptrchng-3.6 {
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execsql {
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SELECT pointer_change(y, 'text16', 'noop', 'text') FROM t1 WHERE x=2
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}
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} {1}
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}
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do_test ptrchng-3.11 {
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execsql {
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SELECT pointer_change(y, 'text', 'noop', 'blob') FROM t1 WHERE x=4
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}
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} {0}
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do_test ptrchng-3.12 {
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execsql {
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SELECT pointer_change(y, 'blob', 'noop', 'text') FROM t1 WHERE x=4
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}
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} {0}
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ifcapable utf16 {
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do_test ptrchng-3.13 {
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execsql {
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SELECT pointer_change(y, 'text', 'noop', 'text16') FROM t1 WHERE x=4
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}
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} {1}
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do_test ptrchng-3.14 {
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execsql {
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SELECT pointer_change(y, 'blob', 'noop', 'text16') FROM t1 WHERE x=4
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}
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} {1}
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do_test ptrchng-3.15 {
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execsql {
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SELECT pointer_change(y, 'text16', 'noop', 'blob') FROM t1 WHERE x=4
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}
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} {0}
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do_test ptrchng-3.16 {
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execsql {
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SELECT pointer_change(y, 'text16', 'noop', 'text') FROM t1 WHERE x=4
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}
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} {1}
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}
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# A call to _bytes() should never reformat a _text() or _blob().
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#
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do_test ptrchng-4.1 {
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execsql {
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SELECT pointer_change(y, 'text', 'bytes', 'text') FROM t1
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}
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} {0 0 0 0}
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do_test ptrchng-4.2 {
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execsql {
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SELECT pointer_change(y, 'blob', 'bytes', 'blob') FROM t1
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}
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} {0 0 0 0}
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# A call to _blob() should never trigger a reformat
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#
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do_test ptrchng-5.1 {
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execsql {
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SELECT pointer_change(y, 'text', 'bytes', 'blob') FROM t1
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}
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} {0 0 0 0}
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ifcapable utf16 {
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do_test ptrchng-5.2 {
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execsql {
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SELECT pointer_change(y, 'text16', 'noop', 'blob') FROM t1
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}
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} {0 0 0 0}
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do_test ptrchng-5.3 {
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execsql {
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SELECT pointer_change(y, 'text16', 'bytes16', 'blob') FROM t1
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}
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} {0 0 0 0}
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}
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finish_test
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