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Diffstat (limited to 'test/ptrchng.test')
| -rw-r--r-- | test/ptrchng.test | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/test/ptrchng.test b/test/ptrchng.test new file mode 100644 index 0000000..75525f9 --- /dev/null +++ b/test/ptrchng.test @@ -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 |