173 lines
3.9 KiB
Plaintext
173 lines
3.9 KiB
Plaintext
# 2003 December 18
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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. The
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# focus of this script is multithreading behavior
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#
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# $Id: thread1.test,v 1.7 2004/06/19 00:16:31 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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# Skip this whole file if the thread testing code is not enabled
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#
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if {[llength [info command thread_step]]==0 || [sqlite3 -has-codec]} {
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finish_test
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return
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}
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# Create some data to work with
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#
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do_test thread1-1.1 {
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execsql {
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CREATE TABLE t1(a,b);
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INSERT INTO t1 VALUES(1,'abcdefgh');
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INSERT INTO t1 SELECT a+1, b||b FROM t1;
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INSERT INTO t1 SELECT a+2, b||b FROM t1;
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INSERT INTO t1 SELECT a+4, b||b FROM t1;
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SELECT count(*), max(length(b)) FROM t1;
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}
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} {8 64}
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# Interleave two threads on read access. Then make sure a third
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# thread can write the database. In other words:
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#
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# read-lock A
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# read-lock B
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# unlock A
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# unlock B
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# write-lock C
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#
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# At one point, the write-lock of C would fail on Linux.
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#
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do_test thread1-1.2 {
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thread_create A test.db
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thread_create B test.db
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thread_create C test.db
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thread_compile A {SELECT a FROM t1}
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thread_step A
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thread_result A
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} SQLITE_ROW
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do_test thread1-1.3 {
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thread_argc A
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} 1
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do_test thread1-1.4 {
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thread_argv A 0
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} 1
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do_test thread1-1.5 {
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thread_compile B {SELECT b FROM t1}
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thread_step B
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thread_result B
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} SQLITE_ROW
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do_test thread1-1.6 {
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thread_argc B
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} 1
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do_test thread1-1.7 {
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thread_argv B 0
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} abcdefgh
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do_test thread1-1.8 {
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thread_finalize A
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thread_result A
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} SQLITE_OK
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do_test thread1-1.9 {
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thread_finalize B
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thread_result B
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} SQLITE_OK
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do_test thread1-1.10 {
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thread_compile C {CREATE TABLE t2(x,y)}
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thread_step C
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thread_result C
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} SQLITE_DONE
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do_test thread1-1.11 {
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thread_finalize C
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thread_result C
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} SQLITE_OK
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do_test thread1-1.12 {
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catchsql {SELECT name FROM sqlite_master}
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execsql {SELECT name FROM sqlite_master}
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} {t1 t2}
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#
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# The following tests - thread1-2.* - test the following scenario:
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#
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# 1: Read-lock thread A
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# 2: Read-lock thread B
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# 3: Attempt to write in thread C -> SQLITE_BUSY
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# 4: Check db write failed from main thread.
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# 5: Unlock from thread A.
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# 6: Attempt to write in thread C -> SQLITE_BUSY
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# 7: Check db write failed from main thread.
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# 8: Unlock from thread B.
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# 9: Attempt to write in thread C -> SQLITE_DONE
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# 10: Finalize the write from thread C
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# 11: Check db write succeeded from main thread.
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#
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do_test thread1-2.1 {
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thread_halt *
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thread_create A test.db
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thread_compile A {SELECT a FROM t1}
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thread_step A
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thread_result A
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} SQLITE_ROW
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do_test thread1-2.2 {
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thread_create B test.db
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thread_compile B {SELECT b FROM t1}
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thread_step B
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thread_result B
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} SQLITE_ROW
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do_test thread1-2.3 {
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thread_create C test.db
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thread_compile C {INSERT INTO t2 VALUES(98,99)}
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thread_step C
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thread_result C
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thread_finalize C
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thread_result C
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} SQLITE_BUSY
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do_test thread1-2.4 {
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execsql {SELECT * FROM t2}
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} {}
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do_test thread1-2.5 {
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thread_finalize A
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thread_result A
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} SQLITE_OK
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do_test thread1-2.6 {
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thread_compile C {INSERT INTO t2 VALUES(98,99)}
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thread_step C
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thread_result C
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thread_finalize C
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thread_result C
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} SQLITE_BUSY
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do_test thread1-2.7 {
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execsql {SELECT * FROM t2}
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} {}
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do_test thread1-2.8 {
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thread_finalize B
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thread_result B
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} SQLITE_OK
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do_test thread1-2.9 {
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thread_compile C {INSERT INTO t2 VALUES(98,99)}
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thread_step C
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thread_result C
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} SQLITE_DONE
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do_test thread1-2.10 {
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thread_finalize C
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thread_result C
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} SQLITE_OK
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do_test thread1-2.11 {
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execsql {SELECT * FROM t2}
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} {98 99}
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thread_halt *
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finish_test
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