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110 lines
2.1 KiB
Plaintext
110 lines
2.1 KiB
Plaintext
# 2012 March 23
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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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#
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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ifcapable {!incrblob} { finish_test ; return }
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set testprefix incrblob4
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proc create_t1 {} {
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execsql {
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PRAGMA page_size = 1024;
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CREATE TABLE t1(k INTEGER PRIMARY KEY, v);
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}
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}
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proc populate_t1 {} {
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set data [list a b c d e f g h i j k l m n o p q r s t u v w x y z]
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foreach d $data {
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set blob [string repeat $d 900]
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execsql { INSERT INTO t1(v) VALUES($blob) }
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}
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}
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do_test 1.1 {
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create_t1
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populate_t1
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} {}
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do_test 1.2 {
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set blob [db incrblob t1 v 5]
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read $blob 10
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} {eeeeeeeeee}
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do_test 1.3 {
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execsql { DELETE FROM t1 }
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populate_t1
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} {}
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do_test 2.1 {
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reset_db
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create_t1
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populate_t1
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} {}
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do_test 2.2 {
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set blob [db incrblob t1 v 10]
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read $blob 10
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} {jjjjjjjjjj}
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do_test 2.3 {
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set new [string repeat % 900]
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execsql { DELETE FROM t1 WHERE k=10 }
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execsql { DELETE FROM t1 WHERE k=9 }
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execsql { INSERT INTO t1(v) VALUES($new) }
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} {}
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do_test 3.1 {
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reset_db
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create_t1
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populate_t1
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} {}
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do_test 3.2 {
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set blob [db incrblob t1 v 20]
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read $blob 10
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} {tttttttttt}
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do_test 3.3 {
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set new [string repeat % 900]
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execsql { UPDATE t1 SET v = $new WHERE k = 20 }
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execsql { DELETE FROM t1 WHERE k=19 }
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execsql { INSERT INTO t1(v) VALUES($new) }
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} {}
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#-------------------------------------------------------------------------
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# Test that it is not possible to DROP a table with an incremental blob
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# cursor open on it.
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#
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do_execsql_test 4.1 {
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CREATE TABLE t2(a INTEGER PRIMARY KEY, b);
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INSERT INTO t2 VALUES(456, '0123456789');
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}
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do_test 4.2 {
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set blob [db incrblob -readonly t2 b 456]
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read $blob 5
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} {01234}
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do_catchsql_test 4.3 {
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DROP TABLE t2
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} {1 {database table is locked}}
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do_test 4.4 {
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sqlite3_extended_errcode db
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} {SQLITE_LOCKED}
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close $blob
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finish_test
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