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Fix an OOM related crash in fkey.c.

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FossilOrigin-Name: 635d6a775a3f192d4292738905f5e01bc956a712
This commit is contained in:
dan
2009-09-22 15:53:47 +00:00
parent 3e82c1d99b
commit 29c7f9caac
5 changed files with 123 additions and 43 deletions
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30
test/fkey2.test
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@ -44,6 +44,9 @@ ifcapable {!foreignkey||!trigger} {
#
# fkey2-7.*: Test using an IPK as the key in the child (referencing) table.
#
# fkey2-8.*: Test that enabling/disabling foreign key support while a
# transaction is active is not possible.
#
# fkey2-genfkey.*: Tests that were used with the shell tool .genfkey
# command. Recycled to test the built-in implementation.
#
@ -414,6 +417,7 @@ ifcapable vacuum {
#-------------------------------------------------------------------------
# Test that it is possible to use an INTEGER PRIMARY KEY as the child key
# of a foreign constraint.
#
drop_all_tables
do_test fkey2-7.1 {
execsql {
@ -447,6 +451,32 @@ do_test fkey2-7.8 {
catchsql { UPDATE t1 SET a = 3 }
} {1 {foreign key constraint failed}}
#-------------------------------------------------------------------------
# Test that it is not possible to enable/disable FK support while a
# transaction is open.
#
drop_all_tables
proc fkey2-8-test {tn zSql value} {
do_test fkey-2.8.$tn.1 [list execsql $zSql] {}
do_test fkey-2.8.$tn.2 { execsql "PRAGMA foreign_keys" } $value
}
fkey2-8-test 1 { PRAGMA foreign_keys = 0 } 0
fkey2-8-test 2 { PRAGMA foreign_keys = 1 } 1
fkey2-8-test 3 { BEGIN } 1
fkey2-8-test 4 { PRAGMA foreign_keys = 0 } 1
fkey2-8-test 5 { COMMIT } 1
fkey2-8-test 6 { PRAGMA foreign_keys = 0 } 0
fkey2-8-test 7 { BEGIN } 0
fkey2-8-test 8 { PRAGMA foreign_keys = 1 } 0
fkey2-8-test 9 { COMMIT } 0
fkey2-8-test 10 { PRAGMA foreign_keys = 1 } 1
fkey2-8-test 11 { PRAGMA foreign_keys = off } 0
fkey2-8-test 12 { PRAGMA foreign_keys = on } 1
fkey2-8-test 13 { PRAGMA foreign_keys = no } 0
fkey2-8-test 14 { PRAGMA foreign_keys = yes } 1
fkey2-8-test 15 { PRAGMA foreign_keys = false } 0
fkey2-8-test 16 { PRAGMA foreign_keys = true } 1
#-------------------------------------------------------------------------
# The following block of tests, those prefixed with "fkey2-genfkey.", are
# the same tests that were used to test the ".genfkey" command provided