Add a test to walcksum.test to stress the checksum calculation.

FossilOrigin-Name: 778d0c1768f73057be912793631e0cf0575858fb

diff --git a/manifest b/manifest
index e92b9749153cd835a77a34b7f104826bff70f070..87e4c8efe4b9200e5a6b19f03fce24eb8eba7308 100644 (file)
--- a/manifest
+++ b/manifest
@@ -1,8 +1,5 @@
------BEGIN PGP SIGNED MESSAGE-----
-Hash: SHA1
-
-C Make\ssure\sthe\swal-index\smapping\sis\salways\slarge\senough\sto\scover\sthe\sentire\nactive\sarea\sof\sthe\swal-index.
-D 2010-05-26T17:31:59
+C Add\sa\stest\sto\swalcksum.test\sto\sstress\sthe\schecksum\scalculation.
+D 2010-05-28T04:16:28
 F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
 F Makefile.in a5cad1f8f3e021356bfcc6c77dc16f6f1952bbc3
 F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@ -767,7 +764,7 @@ F test/vtab_shared.test 0eff9ce4f19facbe0a3e693f6c14b80711a4222d
 F test/wal.test be8ef043253ca735ffcabb92a7dac2d79ebfe8c1
 F test/wal2.test a10f52b403117c2b9a1f7a11db527c53bb684a25
 F test/walbak.test e7650a26eb4b8abeca9b145b1af1e63026dde432
-F test/walcksum.test a0712107b6a73397fc7e3f92d5b16e206caa7d3d
+F test/walcksum.test a710d2c5c3f4e786d37d099790d8df8c47e270a3
 F test/walcrash.test f6d5fb2bb108876f04848720a488065d9deef69f
 F test/walcrash2.test 14585ad1a2c85da2de721caa3b4deeea55213008
 F test/walfault.test f71d4c9a13d4e27086aef55f1e0e94734ffa2f6a
@@ -818,14 +815,7 @@ F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
 F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
-P 72de00731245277b2209103ec0a76e3d4f56530e
-R 3803eb711e1482685c888c1d5aad25b9
-U drh
-Z fbf41cb9ad1e3a86d51249de0c4212ff
------BEGIN PGP SIGNATURE-----
-Version: GnuPG v1.4.6 (GNU/Linux)
-
-iD8DBQFL/VsSoxKgR168RlERAiiyAKCNIB2cx0oWfiSWhB7rYPl7wJQPNwCffewd
-BG/+93y24TpcUQJKKPuyhOs=
-=WCDR
------END PGP SIGNATURE-----
+P 42705babba0e9d2ef078845854bebbd168f23366
+R 9d2a3bc8fc2778c92116dc9b4d28847f
+U dan
+Z 0d53d36af3414df9e04c32dec264ddf0

diff --git a/manifest.uuid b/manifest.uuid
index 291c774fa3da2006b64c035fbbf34d71d172a4bb..c98509d9395ae24f2629d48ac45d50d42bba1845 100644 (file)
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-42705babba0e9d2ef078845854bebbd168f23366
\ No newline at end of file
+778d0c1768f73057be912793631e0cf0575858fb
\ No newline at end of file

diff --git a/test/walcksum.test b/test/walcksum.test
index f21cf9fea97df93b4e89e7035a57ea11494b8170..0cded894ebe881ad234c7cc8ac80242219b09790 100644 (file)
--- a/test/walcksum.test
+++ b/test/walcksum.test
@@ -284,6 +284,12 @@ foreach endian {big little} {
   catch { db2 close }
 }
 
+#-------------------------------------------------------------------------
+# Test case walcksum-2.* tests that if a statement transaction is rolled
+# back after frames are written to the WAL, and then (after writing some
+# more) the outer transaction is committed, the WAL file is still correctly
+# formatted (and can be recovered by a second process if required).
+#
 do_test walcksum-2.1 {
   file delete -force test.db test.db-wal test.db-journal
   sqlite3 db test.db
@@ -325,4 +331,58 @@ do_test walcksum-2.1 {
 catch { db close }
 catch { db2 close }
 
+#-------------------------------------------------------------------------
+# Test case walcksum-3.* tests that the checksum calculation detects single 
+# byte changes to frame or frame-header data and considers the frame
+# invalid as a result.
+#
+do_test walcksum-3.1 {
+  file delete -force test.db test.db-wal test.db-journal
+  sqlite3 db test.db
+
+  execsql {
+    PRAGMA synchronous = NORMAL;
+    PRAGMA page_size = 1024;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, randomblob(300));
+    INSERT INTO t1 VALUES(2, randomblob(300));
+    PRAGMA journal_mode = WAL;
+    INSERT INTO t1 VALUES(3, randomblob(300));
+  }
+
+  file size test.db-wal
+} [log_file_size 1 1024]
+do_test walcksum-3.2 {
+  file copy -force test.db-wal test2.db-wal
+  file copy -force test.db test2.db
+  sqlite3 db2 test2.db
+  execsql { SELECT a FROM t1 } db2
+} {1 2 3}
+db2 close
+file copy -force test.db test2.db
+for {set incr 1} {$incr <= 255} {incr incr 21} {
+  do_test walcksum-3.3.$incr {
+    set FAIL 0
+    for {set iOff 0} {$iOff < [log_file_size 1 1024]} {incr iOff} {
+
+      file copy -force test.db-wal test2.db-wal
+      set fd [open test2.db-wal r+]
+      fconfigure $fd -encoding binary
+      fconfigure $fd -translation binary
+  
+      seek $fd $iOff
+      binary scan [read $fd 1] c x
+      seek $fd $iOff
+      puts -nonewline $fd [binary format c [expr {$x+$incr}]]
+      close $fd
+    
+      sqlite3 db2 test2.db
+      if { [execsql { SELECT a FROM t1 } db2] != "1 2" } {set FAIL 1}
+      db2 close
+    }
+    set FAIL
+  } {0}
+}
+  
 finish_test
+