Index: third_party/sqlite/sqlite-src-3080704/test/jrnlmode3.test |
diff --git a/third_party/sqlite/sqlite-src-3080704/test/jrnlmode3.test b/third_party/sqlite/sqlite-src-3080704/test/jrnlmode3.test |
new file mode 100644 |
index 0000000000000000000000000000000000000000..43da6579abc1c032053ffc64c1917e6b08754b61 |
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+# 2009 April 20 |
+# |
+# The author disclaims copyright to this source code. In place of |
+# a legal notice, here is a blessing: |
+# |
+# May you do good and not evil. |
+# May you find forgiveness for yourself and forgive others. |
+# May you share freely, never taking more than you give. |
+# |
+#*********************************************************************** |
+# |
+# Test cases inspired by ticket #3811. Tests to make sure that |
+# the journal_mode can only be changed at appropriate times and that |
+# all reported changes are effective. |
+# |
+# $Id: jrnlmode3.test,v 1.5 2009/04/20 17:43:03 drh Exp $ |
+ |
+set testdir [file dirname $argv0] |
+source $testdir/tester.tcl |
+ |
+ifcapable {!pager_pragmas} { |
+ finish_test |
+ return |
+} |
+ |
+# |
+# Verify that journal_mode=OFF works as long as it occurs before the first |
+# transaction, even if locking_mode=EXCLUSIVE is enabled. The behavior if |
+# journal_mode is changed after the first transaction is undefined and hence |
+# untested. |
+# |
+do_test jrnlmode3-1.1 { |
+ db eval { |
+ PRAGMA journal_mode=OFF; |
+ PRAGMA locking_mode=EXCLUSIVE; |
+ CREATE TABLE t1(x); |
+ INSERT INTO t1 VALUES(1); |
+ SELECT * FROM t1; |
+ } |
+} {off exclusive 1} |
+do_test jrnlmode3-1.2 { |
+ db eval { |
+ BEGIN; |
+ INSERT INTO t1 VALUES(2); |
+ ROLLBACK; |
+ SELECT * FROM t1; |
+ } |
+} {1} |
+ |
+db close |
+forcedelete test.db test.db-journal |
+sqlite3 db test.db |
+ |
+do_test jrnlmode3-2.1 { |
+ db eval { |
+ PRAGMA locking_mode=EXCLUSIVE; |
+ PRAGMA journal_mode=OFF; |
+ CREATE TABLE t1(x); |
+ INSERT INTO t1 VALUES(1); |
+ SELECT * FROM t1; |
+ } |
+} {exclusive off 1} |
+do_test jrnlmode3-2.2 { |
+ db eval { |
+ BEGIN; |
+ INSERT INTO t1 VALUES(2); |
+ ROLLBACK; |
+ SELECT * FROM t1; |
+ } |
+} {1} |
+ |
+# Test cases to verify that we can move from any journal_mode |
+# to any other, as long as we are not in a transaction. Verify |
+# that we cannot change journal_mode while a transaction is active. |
+# |
+set all_journal_modes {delete persist truncate memory off} |
+set cnt 0 |
+foreach fromjmode $all_journal_modes { |
+ foreach tojmode $all_journal_modes { |
+ |
+ # Skip the no-change cases |
+ if {$fromjmode==$tojmode} continue |
+ incr cnt |
+ |
+ # Start with a fresh database connection an empty database file. |
+ # |
+ db close |
+ forcedelete test.db test.db-journal |
+ sqlite3 db test.db |
+ |
+ # Initialize the journal mode. |
+ # |
+ do_test jrnlmode3-3.$cnt.1-($fromjmode-to-$tojmode) { |
+ db eval "PRAGMA journal_mode = $fromjmode;" |
+ } $fromjmode |
+ |
+ # Verify that the initial journal mode takes. |
+ # |
+ do_test jrnlmode3-3.$cnt.2 { |
+ db eval {PRAGMA main.journal_mode} |
+ } $fromjmode |
+ |
+ # Start a transaction and try to change the journal mode within |
+ # the transaction. This should fail. |
+ # |
+ do_test jrnlmode3-3.$cnt.3 { |
+ db eval { |
+ CREATE TABLE t1(x); |
+ BEGIN; |
+ INSERT INTO t1 VALUES($cnt); |
+ } |
+ db eval "PRAGMA journal_mode=$tojmode" |
+ } $fromjmode |
+ |
+ # Rollback the transaction. |
+ # |
+ do_test jrnlmode3-3.$cnt.4 { |
+ db eval { |
+ ROLLBACK; |
+ SELECT * FROM t1; |
+ } |
+ } {} |
+ |
+ # Now change the journal mode again. This time the new mode |
+ # should take. |
+ # |
+ do_test jrnlmode3-3.$cnt.5 { |
+ db eval "PRAGMA journal_mode=$tojmode" |
+ } $tojmode |
+ |
+ # Do a the transaction. Verify that the rollback occurred |
+ # if journal_mode!=OFF. |
+ # |
+ do_test jrnlmode3-3.$cnt.6 { |
+ db eval { |
+ DROP TABLE IF EXISTS t1; |
+ CREATE TABLE t1(x); |
+ BEGIN; |
+ INSERT INTO t1 VALUES(1); |
+ } |
+ db eval ROLLBACK |
+ db eval { |
+ SELECT * FROM t1; |
+ } |
+ } {} |
+ } |
+} |
+ |
+finish_test |