Add the "#/value-list/" style of results for approximate value matching

in the do_test command of the test infrastructure.  Use this new result style
to make the SQLITE_DBSTATUS_CACHE_SIZE_SHARED tests cross-platform.

FossilOrigin-Name: c869bf34a8ee42ac6542862e59c7a4b89b042f79

manifest

@@ -1,5 +1,5 @@
-C Fix\sa\scompiler\swarning\sin\stest\scode\s-\sin\sthe\sint64array_addr\sTCL\scommand.
-D 2016-07-09T17:15:05.420
+C Add\sthe\s"#/value-list/"\sstyle\sof\sresults\sfor\sapproximate\svalue\smatching\nin\sthe\sdo_test\scommand\sof\sthe\stest\sinfrastructure.\s\sUse\sthis\snew\sresult\sstyle\nto\smake\sthe\sSQLITE_DBSTATUS_CACHE_SIZE_SHARED\stests\scross-platform.
+D 2016-07-09T17:47:01.013
 F Makefile.in 6c20d44f72d4564f11652b26291a214c8367e5db
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc d66d0395c38571aab3804f8db0fa20707ae4609a
@@ -621,7 +621,7 @@ F test/ctime.test 0b995accd44a52914bd4744d5c1b6e1a56c7897c
 F test/cursorhint.test 7bc346788390475e77a345da2b92270d04d35856
 F test/cursorhint2.test 2b45341d32d1aae9991a00ef31ebca339b274255
 F test/date.test 984ac1e3e5e031386866f034006148d3972b4a65
-F test/dbstatus.test 254427f026b55ab6eba99bd8493f4edbc370bb13
+F test/dbstatus.test 85833ba5bc95262749d080dcd40af87072ea8d5b
 F test/dbstatus2.test e93ab03bfae6d62d4d935f20de928c19ca0ed0ab
 F test/default.test 0cb49b1c315a0d81c81d775e407f66906a2a604d
 F test/delete.test e1bcdf8926234e27aac24b346ad83d3329ec8b6f
@@ -1128,7 +1128,7 @@ F test/temptable.test d2c9b87a54147161bcd1822e30c1d1cd891e5b30
 F test/temptable2.test cd396beb41117a5302fff61767c35fa4270a0d5e
 F test/temptable3.test d11a0974e52b347e45ee54ef1923c91ed91e4637
 F test/temptrigger.test 8ec228b0db5d7ebc4ee9b458fc28cb9e7873f5e1
-F test/tester.tcl 3ace46dee55f07e28a1e3ab03258b929fefcee5b
+F test/tester.tcl a52b5be1bb586afa1c8bcdcd4b86588645e1ae52
 F test/thread001.test 9f22fd3525a307ff42a326b6bc7b0465be1745a5
 F test/thread002.test e630504f8a06c00bf8bbe68528774dd96aeb2e58
 F test/thread003.test ee4c9efc3b86a6a2767516a37bd64251272560a7
@@ -1505,7 +1505,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 8b22f777a11438ab0baadc7d9e471f415b734d1f
-R 8809172c97ecd2789d873e485f1080c5
+P 29fb988f1afc3fe623097acee1a5d08bf8386626
+R 767a7d8abd9b9525d1b45069b4c3dba2
 U drh
-Z b4d622f88577c8bb575918451a798624
+Z df36acb2648e26f22b53c52b73476f6c

manifest.uuid

@@ -1 +1 @@
-29fb988f1afc3fe623097acee1a5d08bf8386626
+c869bf34a8ee42ac6542862e59c7a4b89b042f79

test/dbstatus.test

@@ -69,16 +69,12 @@ ifcapable stat4||stat3 {
   set STAT3 0
 }
 
-ifcapable malloc_usable_size {
-  finish_test
-  return
-}
-
 #---------------------------------------------------------------------------
 # Run the dbstatus-2 and dbstatus-3 tests with several of different
 # lookaside buffer sizes.
 #
 foreach ::lookaside_buffer_size {0 64 120} {
+  ifcapable malloc_usable_size break
 
   # Do not run any of these tests if there is SQL configured to run
   # as part of the [sqlite3] command. This prevents the script from
@@ -388,7 +384,7 @@ ifcapable shared_cache {
     set pcu [sqlite3_db_status $db SQLITE_DBSTATUS_CACHE_USED_SHARED 0]
     set cu [lindex $cu 1]
     set pcu [lindex $pcu 1]
-    uplevel [list do_test $tn [list list $cu $pcu] [list {*}$res]]
+    uplevel [list do_test $tn [list list $cu $pcu] "#/$res/"]
   }
   reset_db
   sqlite3 db file:test.db?cache=shared

test/tester.tcl

@@ -720,6 +720,17 @@ proc puts {args} { uplevel puts_override $args }
 
 # Invoke the do_test procedure to run a single test
 #
+# The $expected parameter is the expected result.  The result is the return
+# value from the last TCL command in $cmd.
+#
+# Normally, $expected must match exactly.  But if $expected is of the form
+# "/regexp/" then regular expression matching is used.  If $expected is
+# "~/regexp/" then the regular expression must NOT match.  If $expected is
+# of the form "#/value-list/" then each term in value-list must be numeric
+# and must approximately match the corresponding numeric term in $result.
+# Values must match within 10%.  Or if the $expected term is A..B then the
+# $result term must be in between A and B.
+#
 proc do_test {name cmd expected} {
   global argv cmdlinearg
 
@@ -753,7 +764,7 @@ proc do_test {name cmd expected} {
       output2 "\nError: $result"
       fail_test $name
     } else {
-      if {[regexp {^~?/.*/$} $expected]} {
+      if {[regexp {^[~#]?/.*/$} $expected]} {
         # "expected" is of the form "/PATTERN/" then the result if correct if
         # regular expression PATTERN matches the result.  "~/PATTERN/" means
         # the regular expression must not match.
@@ -767,6 +778,21 @@ proc do_test {name cmd expected} {
             set ok [regexp $re $result]
           }
           set ok [expr {!$ok}]
+        } elseif {[string index $expected 0]=="#"} {
+          # Numeric range value comparison.  Each term of the $result is matched
+          # against one term of $expect.  Both $result and $expected terms must be
+          # numeric.  The values must match within 10%.  Or if $expected is of the
+          # form A..B then the $result term must be between A and B.
+          set e2 [string range $expected 2 end-1]
+          foreach i $result j $e2 {
+            if {[regexp {^(-?\d+)\.\.(-?\d)$} $j all A B]} {
+              set ok [expr {$i+0>=$A && $i+0<=$B}]
+            } else {
+              set ok [expr {$i+0>=0.9*$j && $i+0<=1.1*$j}]
+            }
+            if {!$ok} break
+          }
+          if {$ok && [llength $result]!=[llength $e2]} {set ok 0}
         } else {
           set re [string range $expected 1 end-1]
           if {[string index $re 0]=="*"} {