wasCSharpSQLite – Blame information for rev 1

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1 office 1 # 2004 June 30
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 verifying that a rollback in one statement
13 # caused by an ON CONFLICT ROLLBACK clause aborts any other pending
14 # statements.
15 #
16 # $Id: rollback.test,v 1.11 2009/06/26 07:12:07 danielk1977 Exp $
17  
18 set testdir [file dirname $argv0]
19 source $testdir/tester.tcl
20  
21 set DB [sqlite3_connection_pointer db]
22  
23 do_test rollback-1.1 {
24 execsql {
25 CREATE TABLE t1(a);
26 INSERT INTO t1 VALUES(1);
27 INSERT INTO t1 VALUES(2);
28 INSERT INTO t1 VALUES(3);
29 INSERT INTO t1 VALUES(4);
30 SELECT * FROM t1;
31 }
32 } {1 2 3 4}
33  
34 ifcapable conflict {
35 do_test rollback-1.2 {
36 execsql {
37 CREATE TABLE t3(a unique on conflict rollback);
38 INSERT INTO t3 SELECT a FROM t1;
39 BEGIN;
40 INSERT INTO t1 SELECT * FROM t1;
41 }
42 } {}
43 }
44 do_test rollback-1.3 {
45 set STMT [sqlite3_prepare $DB "SELECT a FROM t1" -1 TAIL]
46 sqlite3_step $STMT
47 } {SQLITE_ROW}
48  
49 ifcapable conflict {
50 # This causes a ROLLBACK, which deletes the table out from underneath the
51 # SELECT statement.
52 #
53 do_test rollback-1.4 {
54 catchsql {
55 INSERT INTO t3 SELECT a FROM t1;
56 }
57 } {1 {column a is not unique}}
58  
59 # Try to continue with the SELECT statement
60 #
61 do_test rollback-1.5 {
62 sqlite3_step $STMT
63 } {SQLITE_ERROR}
64  
65 # Restart the SELECT statement
66 #
67 do_test rollback-1.6 { sqlite3_reset $STMT } {SQLITE_ABORT}
68 } else {
69 do_test rollback-1.6 { sqlite3_reset $STMT } {SQLITE_OK}
70 }
71  
72 do_test rollback-1.7 {
73 sqlite3_step $STMT
74 } {SQLITE_ROW}
75 do_test rollback-1.8 {
76 sqlite3_step $STMT
77 } {SQLITE_ROW}
78 do_test rollback-1.9 {
79 sqlite3_finalize $STMT
80 } {SQLITE_OK}
81  
82 if {$tcl_platform(platform) == "unix"
83 && [permutation] ne "onefile"
84 && [permutation] ne "inmemory_journal"
85 } {
86 do_test rollback-2.1 {
87 execsql {
88 BEGIN;
89 INSERT INTO t3 VALUES('hello world');
90 }
91 file copy -force test.db testA.db
92 file copy -force test.db-journal testA.db-journal
93 execsql {
94 COMMIT;
95 }
96 } {}
97  
98 # At this point files testA.db and testA.db-journal are present in the
99 # file system. This block adds a master-journal file pointer to the
100 # end of testA.db-journal. The master-journal file does not exist.
101 #
102 set mj [file normalize testA.db-mj-123]
103 binary scan $mj c* a
104 set cksum 0
105 foreach i $a { incr cksum $i }
106 set mj_pgno [expr $sqlite_pending_byte / 1024]
107 set zAppend [binary format Ia*IIa8 $mj_pgno $mj [string length $mj] $cksum \
108 "\xd9\xd5\x05\xf9\x20\xa1\x63\xd7"
109 ]
110 set iOffset [expr (([file size testA.db-journal] + 511)/512)*512]
111 set fd [open testA.db-journal a+]
112 fconfigure $fd -encoding binary -translation binary
113 seek $fd $iOffset
114 puts -nonewline $fd $zAppend
115  
116 # Also, fix the first journal-header in the journal-file. Because the
117 # journal file has not yet been synced, the 8-byte magic string at the
118 # start of the first journal-header has not been written by SQLite.
119 # So write it now.
120 seek $fd 0
121 puts -nonewline $fd "\xd9\xd5\x05\xf9\x20\xa1\x63\xd7"
122 close $fd
123  
124 # Open a handle on testA.db and use it to query the database. At one
125 # point the first query would attempt a hot rollback, attempt to open
126 # the master-journal file and return SQLITE_CANTOPEN when it could not
127 # be opened. This is incorrect, it should simply delete the journal
128 # file and proceed with the query.
129 #
130 do_test rollback-2.2 {
131 sqlite3 db2 testA.db
132 execsql {
133 SELECT distinct tbl_name FROM sqlite_master;
134 } db2
135 } {t1 t3}
136 if {[lsearch {exclusive persistent_journal no_journal} [permutation]]<0} {
137 do_test rollback-2.3 {
138 file exists testA.db-journal
139 } 0
140 }
141 do_test rollback-2.4 {
142 execsql {
143 SELECT distinct tbl_name FROM sqlite_master;
144 } db2
145 } {t1 t3}
146  
147 db2 close
148 }
149  
150 finish_test