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Issue 3108030: Move bundled copy of sqlite one level deeper to better separate it... (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 10 years, 4 months ago
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1 # 2005 January 19
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 # $Id: shared2.test,v 1.8 2009/06/05 17:09:12 drh Exp $
13
14 set testdir [file dirname $argv0]
15 source $testdir/tester.tcl
16 db close
17
18 ifcapable !shared_cache {
19 finish_test
20 return
21 }
22 set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
23
24 # Test that if we delete all rows from a table any read-uncommitted
25 # cursors are correctly invalidated. Test on both table and index btrees.
26 do_test shared2-1.1 {
27 sqlite3 db1 test.db
28 sqlite3 db2 test.db
29
30 # Set up some data. Table "numbers" has 64 rows after this block
31 # is executed.
32 execsql {
33 BEGIN;
34 CREATE TABLE numbers(a PRIMARY KEY, b);
35 INSERT INTO numbers(oid) VALUES(NULL);
36 INSERT INTO numbers(oid) SELECT NULL FROM numbers;
37 INSERT INTO numbers(oid) SELECT NULL FROM numbers;
38 INSERT INTO numbers(oid) SELECT NULL FROM numbers;
39 INSERT INTO numbers(oid) SELECT NULL FROM numbers;
40 INSERT INTO numbers(oid) SELECT NULL FROM numbers;
41 INSERT INTO numbers(oid) SELECT NULL FROM numbers;
42 UPDATE numbers set a = oid, b = 'abcdefghijklmnopqrstuvwxyz0123456789';
43 COMMIT;
44 } db1
45 } {}
46 do_test shared2-1.2 {
47 # Put connection 2 in read-uncommitted mode and start a SELECT on table
48 # 'numbers'. Half way through the SELECT, use connection 1 to delete the
49 # contents of this table.
50 execsql {
51 pragma read_uncommitted = 1;
52 } db2
53 set count [execsql {SELECT count(*) FROM numbers} db2]
54 db2 eval {SELECT a FROM numbers ORDER BY oid} {
55 if {$a==32} {
56 execsql {
57 BEGIN;
58 DELETE FROM numbers;
59 } db1
60 }
61 }
62 list $a $count
63 } {32 64}
64 do_test shared2-1.3 {
65 # Same test as 1.2, except scan using the index this time.
66 execsql {
67 ROLLBACK;
68 } db1
69 set count [execsql {SELECT count(*) FROM numbers} db2]
70 db2 eval {SELECT a, b FROM numbers ORDER BY a} {
71 if {$a==32} {
72 execsql {
73 DELETE FROM numbers;
74 } db1
75 }
76 }
77 list $a $count
78 } {32 64}
79
80 #---------------------------------------------------------------------------
81 # These tests, shared2.2.*, test the outcome when data is added to or
82 # removed from a table due to a rollback while a read-uncommitted
83 # cursor is scanning it.
84 #
85 do_test shared2-2.1 {
86 execsql {
87 INSERT INTO numbers VALUES(1, 'Medium length text field');
88 INSERT INTO numbers VALUES(2, 'Medium length text field');
89 INSERT INTO numbers VALUES(3, 'Medium length text field');
90 INSERT INTO numbers VALUES(4, 'Medium length text field');
91 BEGIN;
92 DELETE FROM numbers WHERE (a%2)=0;
93 } db1
94 set res [list]
95 db2 eval {
96 SELECT a FROM numbers ORDER BY a;
97 } {
98 lappend res $a
99 if {$a==3} {
100 execsql {ROLLBACK} db1
101 }
102 }
103 set res
104 } {1 3 4}
105 do_test shared2-2.2 {
106 execsql {
107 BEGIN;
108 INSERT INTO numbers VALUES(5, 'Medium length text field');
109 INSERT INTO numbers VALUES(6, 'Medium length text field');
110 } db1
111 set res [list]
112 db2 eval {
113 SELECT a FROM numbers ORDER BY a;
114 } {
115 lappend res $a
116 if {$a==5} {
117 execsql {ROLLBACK} db1
118 }
119 }
120 set res
121 } {1 2 3 4 5}
122
123 db1 close
124 db2 close
125
126 do_test shared2-3.2 {
127 sqlite3_enable_shared_cache 1
128 } {1}
129
130 file delete -force test.db
131
132 sqlite3 db test.db
133 do_test shared2-4.1 {
134 execsql {
135 CREATE TABLE t0(a, b);
136 CREATE TABLE t1(a, b DEFAULT 'hello world');
137 }
138 } {}
139 db close
140
141 sqlite3 db test.db
142 sqlite3 db2 test.db
143
144 do_test shared2-4.2 {
145 execsql { SELECT a, b FROM t0 } db
146 execsql { INSERT INTO t1(a) VALUES(1) } db2
147 } {}
148
149 do_test shared2-4.3 {
150 db2 close
151 db close
152 } {}
153
154 # At one point, this was causing a crash.
155 #
156 do_test shared2-5.1 {
157 sqlite3 db test.db
158 sqlite3 db2 test.db
159 execsql { CREATE TABLE t2(a, b, c) }
160
161 # The following statement would crash when attempting to sqlite3_free()
162 # a pointer allocated from a lookaside buffer.
163 execsql { CREATE INDEX i1 ON t2(a) } db2
164 } {}
165
166 db close
167 db2 close
168
169 sqlite3_enable_shared_cache $::enable_shared_cache
170 finish_test
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