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Prohibit the user from changing the temporary storage medium (pragma temp_store) while there is a read transaction open on the temporary database. Add tests to shared.test to cover a few more lines in btree.c. (CVS 5362)

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FossilOrigin-Name: 92e0cf9a08a8b337a8f239afb048a0e045485771
This commit is contained in:
danielk1977
2008-07-08 07:35:51 +00:00
parent 5e73db36c6
commit 983e230939
5 changed files with 93 additions and 14 deletions
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64
test/shared.test
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@ -9,7 +9,7 @@
#
#***********************************************************************
#
# $Id: shared.test,v 1.32 2008/05/19 20:11:40 shane Exp $
# $Id: shared.test,v 1.33 2008/07/08 07:35:52 danielk1977 Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
@ -938,6 +938,68 @@ do_test shared-$av.12.X {
}
} {}
# Internally, locks are acquired on shared B-Tree structures in the order
# that the structures appear in the virtual memory address space. This
# test case attempts to cause the order of the structures in memory
# to be different from the order in which they are attached to a given
# database handle. This covers an extra line or two.
#
do_test shared-$av.13.1 {
file delete -force test2.db test3.db test4.db test5.db
sqlite3 db :memory:
execsql {
ATTACH 'test2.db' AS aux2;
ATTACH 'test3.db' AS aux3;
ATTACH 'test4.db' AS aux4;
ATTACH 'test5.db' AS aux5;
DETACH aux2;
DETACH aux3;
DETACH aux4;
ATTACH 'test2.db' AS aux2;
ATTACH 'test3.db' AS aux3;
ATTACH 'test4.db' AS aux4;
}
} {}
do_test shared-$av.13.2 {
execsql {
CREATE TABLE t1(a, b, c);
CREATE TABLE aux2.t2(a, b, c);
CREATE TABLE aux3.t3(a, b, c);
CREATE TABLE aux4.t4(a, b, c);
CREATE TABLE aux5.t5(a, b, c);
SELECT count(*) FROM
aux2.sqlite_master,
aux3.sqlite_master,
aux4.sqlite_master,
aux5.sqlite_master
}
} {1}
do_test shared-$av.13.3 {
db close
} {}
# Test that nothing horrible happens if a connection to a shared B-Tree
# structure is closed while some other connection has an open cursor.
#
do_test shared-$av.14.1 {
sqlite3 db test.db
sqlite3 db2 test.db
execsql {SELECT name FROM sqlite_master}
} {db1 db2 db3 db4 db5 db6 db7 db8 db9 db10 db11 db12 db13 db14}
do_test shared-$av.14.2 {
set res [list]
db eval {SELECT name FROM sqlite_master} {
if {$name eq "db7"} {
db2 close
}
lappend res $name
}
set res
} {db1 db2 db3 db4 db5 db6 db7 db8 db9 db10 db11 db12 db13 db14}
do_test shared-$av.14.3 {
db close
} {}
}
sqlite3_enable_shared_cache $::enable_shared_cache