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author | Hans-Christoph Steiner <hans@eds.org> | 2012-03-30 20:42:12 -0400 |
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committer | Hans-Christoph Steiner <hans@eds.org> | 2012-03-30 20:42:12 -0400 |
commit | 7bb481fda9ecb134804b49c2ce77ca28f7eea583 (patch) | |
tree | 31b520b9914d3e2453968abe375f2c102772c3dc /test/jrnlmode2.test |
Imported Upstream version 2.0.3
Diffstat (limited to 'test/jrnlmode2.test')
-rw-r--r-- | test/jrnlmode2.test | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/test/jrnlmode2.test b/test/jrnlmode2.test new file mode 100644 index 0000000..6ea87d7 --- /dev/null +++ b/test/jrnlmode2.test @@ -0,0 +1,123 @@ +# 2009 March 24 +# +# 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. +# +#*********************************************************************** +# + +set testdir [file dirname $argv0] +source $testdir/tester.tcl + +ifcapable {!pager_pragmas} { + finish_test + return +} + +#------------------------------------------------------------------------- +# The tests in this file check that the following two bugs (both now fixed) +# do not reappear. +# +# jrnlmode2-1.*: Demonstrate bug #3745: +# +# In persistent journal mode, if: +# +# * There is a persistent journal in the file-system, AND +# * there exists a connection with a shared lock on the db file, +# +# then a second connection cannot open a read-transaction on the database. +# The reason is because while determining that the persistent-journal is +# not a hot-journal, SQLite currently grabs an exclusive lock on the +# database file. If this fails because another connection has a shared +# lock, then SQLITE_BUSY is returned to the user. +# +# jrnlmode2-2.*: Demonstrate bug #3751: +# +# If a connection is opened in SQLITE_OPEN_READONLY mode, the underlying +# unix file descriptor on the database file is opened in O_RDONLY mode. +# +# When SQLite queries the database file for the schema in order to compile +# the SELECT statement, it sees the empty journal in the file system, it +# attempts to obtain an exclusive lock on the database file (this is a +# bug). The attempt to obtain an exclusive (write) lock on a read-only file +# fails at the OS level. Under unix, fcntl() reports an EBADF - "Bad file +# descriptor" - error. +# + +do_test jrnlmode2-1.1 { + execsql { + PRAGMA journal_mode = persist; + CREATE TABLE t1(a, b); + INSERT INTO t1 VALUES(1, 2); + } +} {persist} + +do_test jrnlmode2-1.2 { + file exists test.db-journal +} {1} + +do_test jrnlmode2-1.3 { + sqlite3 db2 test.db + execsql { SELECT * FROM t1 } db2 +} {1 2} + +do_test jrnlmode2-1.4 { + execsql { + INSERT INTO t1 VALUES(3, 4); + } + execsql { + BEGIN; + SELECT * FROM t1; + } + execsql { PRAGMA lock_status } +} {main shared temp closed} + +do_test jrnlmode2-1.5 { + file exists test.db-journal +} {1} + +do_test jrnlmode2-1.6 { + catchsql { SELECT * FROM t1 } db2 +} {0 {1 2 3 4}} + +do_test jrnlmode2-1.7 { + execsql { COMMIT } + catchsql { SELECT * FROM t1 } db2 +} {0 {1 2 3 4}} + + + +do_test jrnlmode2-2.1 { + db2 close + execsql { PRAGMA journal_mode = truncate } + execsql { INSERT INTO t1 VALUES(5, 6) } +} {} + +do_test jrnlmode2-2.2 { + file exists test.db-journal +} {1} + +do_test jrnlmode2-2.3 { + file size test.db-journal +} {0} + +do_test jrnlmode2-2.4 { + sqlite3 db2 test.db -readonly 1 + catchsql { SELECT * FROM t1 } db2 +} {0 {1 2 3 4 5 6}} + +do_test jrnlmode2-2.5 { + db close + delete_file test.db-journal +} {} +do_test jrnlmode2-2.6 { + sqlite3 db2 test.db -readonly 1 + catchsql { SELECT * FROM t1 } db2 +} {0 {1 2 3 4 5 6}} + +catch { db2 close } +finish_test |