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| 1 # 2001 September 15 |
| 2 # |
| 3 # The author disclaims copyright to this source code. In place of |
| 4 # a legal notice, here is a blessing: |
| 5 # |
| 6 # May you do good and not evil. |
| 7 # May you find forgiveness for yourself and forgive others. |
| 8 # May you share freely, never taking more than you give. |
| 9 # |
| 10 #*********************************************************************** |
| 11 # This file implements regression tests for SQLite library. The |
| 12 # focus of this file is testing the 'progress callback'. |
| 13 # |
| 14 # $Id: progress.test,v 1.8 2007/06/15 14:53:53 danielk1977 Exp $ |
| 15 |
| 16 set testdir [file dirname $argv0] |
| 17 source $testdir/tester.tcl |
| 18 |
| 19 # If the progress callback is not available in this build, skip this |
| 20 # whole file. |
| 21 ifcapable !progress { |
| 22 finish_test |
| 23 return |
| 24 } |
| 25 |
| 26 # Build some test data |
| 27 # |
| 28 execsql { |
| 29 BEGIN; |
| 30 CREATE TABLE t1(a); |
| 31 INSERT INTO t1 VALUES(1); |
| 32 INSERT INTO t1 VALUES(2); |
| 33 INSERT INTO t1 VALUES(3); |
| 34 INSERT INTO t1 VALUES(4); |
| 35 INSERT INTO t1 VALUES(5); |
| 36 INSERT INTO t1 VALUES(6); |
| 37 INSERT INTO t1 VALUES(7); |
| 38 INSERT INTO t1 VALUES(8); |
| 39 INSERT INTO t1 VALUES(9); |
| 40 INSERT INTO t1 VALUES(10); |
| 41 COMMIT; |
| 42 } |
| 43 |
| 44 |
| 45 # Test that the progress callback is invoked. |
| 46 do_test progress-1.0 { |
| 47 set counter 0 |
| 48 db progress 1 "[namespace code {incr counter}] ; expr 0" |
| 49 execsql { |
| 50 SELECT * FROM t1 |
| 51 } |
| 52 expr $counter > 1 |
| 53 } 1 |
| 54 do_test progress-1.0.1 { |
| 55 db progress |
| 56 } {::namespace inscope :: {incr counter} ; expr 0} |
| 57 do_test progress-1.0.2 { |
| 58 set v [catch {db progress xyz bogus} msg] |
| 59 lappend v $msg |
| 60 } {1 {expected integer but got "xyz"}} |
| 61 |
| 62 # Test that the query is abandoned when the progress callback returns non-zero |
| 63 do_test progress-1.1 { |
| 64 set counter 0 |
| 65 db progress 1 "[namespace code {incr counter}] ; expr 1" |
| 66 set rc [catch {execsql { |
| 67 SELECT * FROM t1 |
| 68 }}] |
| 69 list $counter $rc |
| 70 } {1 1} |
| 71 |
| 72 # Test that the query is rolled back when the progress callback returns |
| 73 # non-zero. |
| 74 do_test progress-1.2 { |
| 75 |
| 76 # This figures out how many opcodes it takes to copy 5 extra rows into t1. |
| 77 db progress 1 "[namespace code {incr five_rows}] ; expr 0" |
| 78 set five_rows 0 |
| 79 execsql { |
| 80 INSERT INTO t1 SELECT a+10 FROM t1 WHERE a < 6 |
| 81 } |
| 82 db progress 0 "" |
| 83 execsql { |
| 84 DELETE FROM t1 WHERE a > 10 |
| 85 } |
| 86 |
| 87 # Now set up the progress callback to abandon the query after the number of |
| 88 # opcodes to copy 5 rows. That way, when we try to copy 6 rows, we know |
| 89 # some data will have been inserted into the table by the time the progress |
| 90 # callback abandons the query. |
| 91 db progress $five_rows "expr 1" |
| 92 catchsql { |
| 93 INSERT INTO t1 SELECT a+10 FROM t1 WHERE a < 9 |
| 94 } |
| 95 execsql { |
| 96 SELECT count(*) FROM t1 |
| 97 } |
| 98 } 10 |
| 99 |
| 100 # Test that an active transaction remains active and not rolled back |
| 101 # after the progress query abandons a query. |
| 102 # |
| 103 # UPDATE: It is now recognised that this is a sure route to database |
| 104 # corruption. So the transaction is rolled back. |
| 105 do_test progress-1.3 { |
| 106 |
| 107 db progress 0 "" |
| 108 execsql BEGIN |
| 109 execsql { |
| 110 INSERT INTO t1 VALUES(11) |
| 111 } |
| 112 db progress 1 "expr 1" |
| 113 catchsql { |
| 114 INSERT INTO t1 VALUES(12) |
| 115 } |
| 116 db progress 0 "" |
| 117 catchsql COMMIT |
| 118 } {1 {cannot commit - no transaction is active}} |
| 119 do_test progress-1.3.1 { |
| 120 execsql { |
| 121 SELECT count(*) FROM t1 |
| 122 } |
| 123 } 10 |
| 124 |
| 125 # Check that a value of 0 for N means no progress callback |
| 126 do_test progress-1.4 { |
| 127 set counter 0 |
| 128 db progress 0 "[namespace code {incr counter}] ; expr 0" |
| 129 execsql { |
| 130 SELECT * FROM t1; |
| 131 } |
| 132 set counter |
| 133 } 0 |
| 134 |
| 135 db progress 0 "" |
| 136 |
| 137 # Make sure other queries can be run from within the progress |
| 138 # handler. Ticket #1827 |
| 139 # |
| 140 do_test progress-1.5 { |
| 141 set rx 0 |
| 142 proc set_rx {args} { |
| 143 db progress 0 {} |
| 144 set ::rx [db eval {SELECT count(*) FROM t1}] |
| 145 return [expr 0] |
| 146 } |
| 147 db progress 10 set_rx |
| 148 db eval { |
| 149 SELECT sum(a) FROM t1 |
| 150 } |
| 151 } {55} |
| 152 do_test progress-1.6 { |
| 153 set ::rx |
| 154 } {10} |
| 155 |
| 156 # Check that abandoning a query using the progress handler does |
| 157 # not cause other queries to abort. Ticket #2415. |
| 158 do_test progress-1.7 { |
| 159 execsql { |
| 160 CREATE TABLE abc(a, b, c); |
| 161 INSERT INTO abc VALUES(1, 2, 3); |
| 162 INSERT INTO abc VALUES(4, 5, 6); |
| 163 INSERT INTO abc VALUES(7, 8, 9); |
| 164 } |
| 165 |
| 166 set ::res [list] |
| 167 db eval {SELECT a, b, c FROM abc} { |
| 168 lappend ::res $a $b $c |
| 169 db progress 10 "expr 1" |
| 170 catch {db eval {SELECT a, b, c FROM abc} { }} msg |
| 171 lappend ::res $msg |
| 172 } |
| 173 |
| 174 set ::res |
| 175 } {1 2 3 interrupted 4 5 6 interrupted 7 8 9 interrupted} |
| 176 |
| 177 finish_test |
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