wasCSharpSQLite – Blame information for rev 1

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1 office 1 # 2008 August 29
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 #
12 # This file is focused on testing the pcache module.
13 #
14 # $Id: pcache.test,v 1.5 2009/05/08 06:52:48 danielk1977 Exp $
15  
16 set testdir [file dirname $argv0]
17 source $testdir/tester.tcl
18  
19 # Do not use a codec for tests in this file, as the database file is
20 # manipulated directly using tcl scripts (using the [hexio_write] command).
21 #
22 do_not_use_codec
23  
24 # Only works with a mode-2 pcache where all pcaches share a single set
25 # of pages.
26 #
27 ifcapable {!memorymanage && threadsafe} {
28 finish_test
29 return
30 }
31  
32 # The pcache module limits the number of pages available to purgeable
33 # caches to the sum of the 'cache_size' values for the set of open
34 # caches. This block of tests, pcache-1.*, test that the library behaves
35 # corrctly when it is forced to exceed this limit.
36 #
37 do_test pcache-1.1 {
38 db close
39 pcache_stats
40 } {current 0 max 0 min 0 recyclable 0}
41  
42 do_test pcache-1.2 {
43 sqlite3 db test.db
44 execsql {
45 PRAGMA cache_size=12;
46 PRAGMA auto_vacuum=0;
47 }
48 pcache_stats
49 } {current 1 max 12 min 10 recyclable 1}
50  
51 do_test pcache-1.3 {
52 execsql {
53 BEGIN;
54 CREATE TABLE t1(a, b, c);
55 CREATE TABLE t2(a, b, c);
56 CREATE TABLE t3(a, b, c);
57 CREATE TABLE t4(a, b, c);
58 CREATE TABLE t5(a, b, c);
59 }
60 pcache_stats
61 } {current 6 max 12 min 10 recyclable 0}
62  
63 do_test pcache-1.4 {
64 execsql {
65 CREATE TABLE t6(a, b, c);
66 CREATE TABLE t7(a, b, c);
67 CREATE TABLE t8(a, b, c);
68 CREATE TABLE t9(a, b, c);
69 }
70 pcache_stats
71 } {current 10 max 12 min 10 recyclable 0}
72  
73 do_test pcache-1.5 {
74 sqlite3 db2 test.db
75 execsql "PRAGMA cache_size=10" db2
76 pcache_stats
77 } {current 11 max 22 min 20 recyclable 1}
78  
79 do_test pcache-1.6.1 {
80 execsql {
81 BEGIN;
82 SELECT * FROM sqlite_master;
83 } db2
84 pcache_stats
85 } {current 11 max 22 min 20 recyclable 0}
86  
87 # At this point connection db2 has a read lock on the database file and a
88 # single pinned page in its cache. Connection [db] is holding 10 dirty
89 # pages. It cannot recycle them because of the read lock held by db2.
90 #
91 do_test pcache-1.6.2 {
92 execsql {
93 CREATE INDEX i1 ON t1(a, b);
94 CREATE INDEX i2 ON t2(a, b);
95 CREATE INDEX i3 ON t3(a, b);
96 CREATE INDEX i4 ON t4(a, b);
97 CREATE INDEX i5 ON t5(a, b);
98 CREATE INDEX i6 ON t6(a, b);
99 CREATE INDEX i7 ON t7(a, b);
100 CREATE INDEX i8 ON t8(a, b);
101 CREATE INDEX i9 ON t9(a, b);
102 CREATE INDEX i10 ON t9(a, b);
103 CREATE INDEX i11 ON t9(a, b);
104 }
105 pcache_stats
106 } {current 23 max 22 min 20 recyclable 0}
107  
108 do_test pcache-1.7 {
109 execsql {
110 CREATE TABLE t10(a, b, c);
111 }
112 pcache_stats
113 } {current 24 max 22 min 20 recyclable 0}
114  
115 # Rolling back the transaction held by db2 at this point releases a pinned
116 # page. Because the number of allocated pages is greater than the
117 # configured maximum, this page should be freed immediately instead of
118 # recycled.
119 #
120 do_test pcache-1.8 {
121 execsql {ROLLBACK} db2
122 pcache_stats
123 } {current 23 max 22 min 20 recyclable 0}
124  
125 do_test pcache-1.9 {
126 execsql COMMIT
127 pcache_stats
128 } {current 22 max 22 min 20 recyclable 22}
129  
130 do_test pcache-1.10 {
131 db2 close
132 pcache_stats
133 } {current 12 max 12 min 10 recyclable 12}
134  
135 do_test pcache-1.11 {
136 execsql { PRAGMA cache_size = 20 }
137 pcache_stats
138 } {current 12 max 20 min 10 recyclable 12}
139  
140 do_test pcache-1.12 {
141 execsql {
142 SELECT * FROM t1 ORDER BY a; SELECT * FROM t1;
143 SELECT * FROM t2 ORDER BY a; SELECT * FROM t2;
144 SELECT * FROM t3 ORDER BY a; SELECT * FROM t3;
145 SELECT * FROM t4 ORDER BY a; SELECT * FROM t4;
146 SELECT * FROM t5 ORDER BY a; SELECT * FROM t5;
147 SELECT * FROM t6 ORDER BY a; SELECT * FROM t6;
148 SELECT * FROM t7 ORDER BY a; SELECT * FROM t7;
149 SELECT * FROM t8 ORDER BY a; SELECT * FROM t8;
150 SELECT * FROM t9 ORDER BY a; SELECT * FROM t9;
151 }
152 pcache_stats
153 } {current 19 max 20 min 10 recyclable 19}
154  
155 do_test pcache-1.13 {
156 execsql { PRAGMA cache_size = 15 }
157 pcache_stats
158 } {current 15 max 15 min 10 recyclable 15}
159  
160 do_test pcache-1.14 {
161 hexio_write test.db 24 [hexio_render_int32 1000]
162 execsql { SELECT * FROM sqlite_master }
163 pcache_stats
164 } {current 2 max 15 min 10 recyclable 2}
165  
166 do_test pcache-1.15 {
167 execsql {
168 SELECT * FROM t1 ORDER BY a; SELECT * FROM t1;
169 SELECT * FROM t2 ORDER BY a; SELECT * FROM t2;
170 SELECT * FROM t3 ORDER BY a; SELECT * FROM t3;
171 SELECT * FROM t4 ORDER BY a; SELECT * FROM t4;
172 SELECT * FROM t5 ORDER BY a; SELECT * FROM t5;
173 SELECT * FROM t6 ORDER BY a; SELECT * FROM t6;
174 SELECT * FROM t7 ORDER BY a; SELECT * FROM t7;
175 SELECT * FROM t8 ORDER BY a; SELECT * FROM t8;
176 SELECT * FROM t9 ORDER BY a; SELECT * FROM t9;
177 }
178 pcache_stats
179 } {current 14 max 15 min 10 recyclable 14}
180  
181 finish_test