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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 explain {SELECT a, b, c FROM abc} | |
168 db eval {SELECT a, b, c FROM abc} { | |
169 lappend ::res $a $b $c | |
170 db progress 5 "expr 1" | |
171 catch {db eval {SELECT a, b, c FROM abc} { }} msg | |
172 db progress 5 "expr 0" | |
173 lappend ::res $msg | |
174 } | |
175 | |
176 set ::res | |
177 } {1 2 3 interrupted 4 5 6 interrupted 7 8 9 interrupted} | |
178 | |
179 finish_test | |
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