90 lines
2.3 KiB
Plaintext
90 lines
2.3 KiB
Plaintext
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# 2009 August 20
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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# This file implements regression tests for SQLite library.
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#
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# This file implements tests to verify that ticket #4018 has been
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# fixed.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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proc testsql {sql} {
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set fd [open tf_main.tcl w]
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puts $fd [subst -nocommands {
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sqlite3_test_control_pending_byte 0x0010000
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sqlite3 db test.db
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set rc [catch { db eval {$sql} } msg]
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puts -nonewline "[set rc] {[set msg]}"
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flush stdout
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exit
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}]
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close $fd
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set fd [open "| [info nameofexec] ./tf_main.tcl" r]
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set res [read $fd]
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close $fd
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return $res
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}
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do_test tkt4018-1.1 {
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execsql {
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CREATE TABLE t1(a, b);
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BEGIN;
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SELECT * FROM t1;
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}
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} {}
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# The database is locked by connection [db]. Open and close a second
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# connection to test.db 10000 times. If file-descriptors are not being
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# reused, then the process will quickly exceed its maximum number of
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# file descriptors (1024 by default on linux).
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do_test tkt4018-1.2 {
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for {set i 0} {$i < 10000} {incr i} {
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sqlite3 db2 test.db
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db2 close
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}
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} {}
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# Now check that connection [db] is still holding a SHARED lock by
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# having a second process try to write the db.
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do_test tkt4018-1.3 {
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testsql {INSERT INTO t1 VALUES(3, 4)}
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} {1 {database is locked}}
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# Sanity checking. Have [db] release the lock and then retry the
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# INSERT from the previous test case.
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do_test tkt4018-1.4 {
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db eval COMMIT
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testsql {INSERT INTO t1 VALUES(3, 4)}
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} {0 {}}
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# Check that reusing a file descriptor cannot change a read-only
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# connection into a read-write connection.
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do_test tkt4018-2.1 {
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sqlite3 db2 test.db
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execsql {INSERT INTO t1 VALUES(1, 2)} db2
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} {}
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do_test tkt4018-2.2 {
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execsql {
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BEGIN;
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SELECT * FROM t1 ORDER BY a;
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}
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} {1 2 3 4}
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do_test tkt4018-2.3 {
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db2 close
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sqlite3 db2 test.db -readonly 1
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execsql COMMIT
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catchsql {INSERT INTO t1 VALUES(5, 6)} db2
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} {1 {attempt to write a readonly database}}
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db2 close
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finish_test
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