[sql] Import reference version of SQLite 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/test/nolock.test

+# 2014-05-07
+#
+# 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.
+#
+#***********************************************************************
+#
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the nolock=1 and immutable=1 query
+# parameters and the SQLITE_IOCAP_IMMUTABLE device characteristic.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+unset -nocomplain tvfs_calls
+proc tvfs_reset {} {
+  global tvfs_calls
+  array set tvfs_calls {xLock 0 xUnlock 0 xCheckReservedLock 0 xAccess 0}
+}
+proc tvfs_callback {op args} {
+  global tvfs_calls
+  incr tvfs_calls($op)
+  return SQLITE_OK
+}
+tvfs_reset
+
+testvfs tvfs
+tvfs script tvfs_callback
+tvfs filter {xLock xUnlock xCheckReservedLock xAccess}
+
+############################################################################
+# Verify that the nolock=1 query parameter for URI filenames disables all
+# calls to xLock and xUnlock for rollback databases.
+#
+do_test nolock-1.0 {
+  db close
+  forcedelete test.db
+  tvfs_reset
+  sqlite db test.db -vfs tvfs
+  db eval {CREATE TABLE t1(a,b,c); INSERT INTO t1 VALUES(1,2,3);}
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock)
+} {xLock 7 xUnlock 5 xCheckReservedLock 0}
+
+do_test nolock-1.1 {
+  db close
+  forcedelete test.db
+  tvfs_reset
+  sqlite db file:test.db?nolock=0 -vfs tvfs -uri 1
+  db eval {CREATE TABLE t1(a,b,c); INSERT INTO t1 VALUES(1,2,3);}
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock)
+} {xLock 7 xUnlock 5 xCheckReservedLock 0}
+
+do_test nolock-1.2 {
+  db close
+  forcedelete test.db
+  tvfs_reset
+  sqlite db file:test.db?nolock=1 -vfs tvfs -uri 1
+  db eval {CREATE TABLE t1(a,b,c); INSERT INTO t1 VALUES(1,2,3);}
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock)
+} {xLock 0 xUnlock 0 xCheckReservedLock 0}
+
+do_test nolock-1.3 {
+  db close
+  tvfs_reset
+  sqlite db file:test.db?nolock=0 -vfs tvfs -uri 1 -readonly 1
+  db eval {SELECT * FROM t1}
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock)
+} {xLock 2 xUnlock 2 xCheckReservedLock 0}
+
+do_test nolock-1.4 {
+  db close
+  tvfs_reset
+  sqlite db file:test.db?nolock=1 -vfs tvfs -uri 1 -readonly 1
+  db eval {SELECT * FROM t1}
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock)
+} {xLock 0 xUnlock 0 xCheckReservedLock 0}
+
+#############################################################################
+# Verify that immutable=1 disables both locking and xAccess calls to the
+# journal files.
+#
+do_test nolock-2.0 {
+  db close
+  forcedelete test.db
+  # begin by creating a test database
+  sqlite3 db test.db
+  db eval {
+     CREATE TABLE t1(a,b);
+     INSERT INTO t1 VALUES('hello','world');
+     CREATE TABLE t2(x,y);
+     INSERT INTO t2 VALUES(12345,67890);
+     SELECT * FROM t1, t2;
+  }
+} {hello world 12345 67890}
+do_test nolock-2.1 {
+  tvfs_reset
+  sqlite3 db2 test.db -vfs tvfs
+  db2 eval {SELECT * FROM t1, t2}
+} {hello world 12345 67890}
+do_test nolock-2.2 {
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock) \
+       xAccess $::tvfs_calls(xAccess)
+} {xLock 2 xUnlock 2 xCheckReservedLock 0 xAccess 4}
+
+
+do_test nolock-2.11 {
+  db2 close
+  tvfs_reset
+  sqlite3 db2 file:test.db?immutable=0 -vfs tvfs -uri 1
+  db2 eval {SELECT * FROM t1, t2}
+} {hello world 12345 67890}
+do_test nolock-2.12 {
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock) \
+       xAccess $::tvfs_calls(xAccess)
+} {xLock 2 xUnlock 2 xCheckReservedLock 0 xAccess 4}
+
+
+do_test nolock-2.21 {
+  db2 close
+  tvfs_reset
+  sqlite3 db2 file:test.db?immutable=1 -vfs tvfs -uri 1
+  db2 eval {SELECT * FROM t1, t2}
+} {hello world 12345 67890}
+do_test nolock-2.22 {
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock) \
+       xAccess $::tvfs_calls(xAccess)
+} {xLock 0 xUnlock 0 xCheckReservedLock 0 xAccess 0}
+
+do_test nolock-2.31 {
+  db2 close
+  tvfs_reset
+  sqlite3 db2 file:test.db?immutable=1 -vfs tvfs -uri 1 -readonly 1
+  db2 eval {SELECT * FROM t1, t2}
+} {hello world 12345 67890}
+do_test nolock-2.32 {
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock) \
+       xAccess $::tvfs_calls(xAccess)
+} {xLock 0 xUnlock 0 xCheckReservedLock 0 xAccess 0}
+
+############################################################################
+# Verify that the SQLITE_IOCAP_IMMUTABLE flag works
+#
+do_test nolock-3.1 {
+  db2 close
+  tvfs devchar immutable
+  tvfs_reset
+  sqlite3 db2 test.db -vfs tvfs
+  db2 eval {SELECT * FROM t1, t2}
+} {hello world 12345 67890}
+do_test nolock-3.2 {
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock) \
+       xAccess $::tvfs_calls(xAccess)
+} {xLock 0 xUnlock 0 xCheckReservedLock 0 xAccess 0}
+
+do_test nolock-3.11 {
+  db2 close
+  tvfs_reset
+  sqlite3 db2 test.db -vfs tvfs -readonly 1
+  db2 eval {SELECT * FROM t1, t2}
+} {hello world 12345 67890}
+do_test nolock-3.12 {
+  list xLock $::tvfs_calls(xLock) xUnlock $::tvfs_calls(xUnlock) \
+       xCheckReservedLock $::tvfs_calls(xCheckReservedLock) \
+       xAccess $::tvfs_calls(xAccess)
+} {xLock 0 xUnlock 0 xCheckReservedLock 0 xAccess 0}
+
+db2 close
+db close
+tvfs delete
+finish_test