# 2001 September 15 # # 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 this file is testing the 'progress callback'. # # $Id: progress.test,v 1.1 2003/10/18 09:37:27 danielk1977 Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # Build some test data # execsql { BEGIN; CREATE TABLE t1(a); INSERT INTO t1 VALUES(1); INSERT INTO t1 VALUES(2); INSERT INTO t1 VALUES(3); INSERT INTO t1 VALUES(4); INSERT INTO t1 VALUES(5); INSERT INTO t1 VALUES(6); INSERT INTO t1 VALUES(7); INSERT INTO t1 VALUES(8); INSERT INTO t1 VALUES(9); INSERT INTO t1 VALUES(10); COMMIT; } # Test that the progress callback is invoked. do_test progress-1.0 { set counter 0 db progress 1 "[namespace code {incr counter}] ; expr 0" execsql { SELECT * FROM t1 } expr $counter > 1 } 1 # Test that the query is abandoned when the progress callback returns non-zero do_test progress1.1 { set counter 0 db progress 1 "[namespace code {incr counter}] ; expr 1" execsql { SELECT * FROM t1 } set counter } 1 # Test that the query is rolled back when the progress callback returns # non-zero. do_test progress1.2 { # This figures out how many opcodes it takes to copy 5 extra rows into t1. db progress 1 "[namespace code {incr five_rows}] ; expr 0" set five_rows 0 execsql { INSERT INTO t1 SELECT a+10 FROM t1 WHERE a < 6 } db progress 0 "" execsql { DELETE FROM t1 WHERE a > 10 } # Now set up the progress callback to abandon the query after the number of # opcodes to copy 5 rows. That way, when we try to copy 6 rows, we know # some data will have been inserted into the table by the time the progress # callback abandons the query. db progress $five_rows "expr 1" execsql { INSERT INTO t1 SELECT a+10 FROM t1 WHERE a < 7 } execsql { SELECT count(*) FROM t1 } } 10 # Test that an active transaction remains active and not rolled back after the # progress query abandons a query. do_test progress1.3 { db progress 0 "" execsql BEGIN execsql { INSERT INTO t1 VALUES(11) } db progress 1 "expr 1" execsql { INSERT INTO t1 VALUES(12) } db progress 0 "" execsql COMMIT execsql { SELECT count(*) FROM t1 } } 11 # Check that a value of 0 for N means no progress callback do_test progress1.4 { set counter 0 db progress 0 "[namespace code {incr counter}] ; expr 0" execsql { SELECT * FROM t1; } set counter } 0 db progress 0 "" finish_test