Index: third_party/sqlite/sqlite-src-3080704/test/index5.test |
diff --git a/third_party/sqlite/sqlite-src-3080704/test/index5.test b/third_party/sqlite/sqlite-src-3080704/test/index5.test |
new file mode 100644 |
index 0000000000000000000000000000000000000000..e369d75717e48e6b0c26cc618f85b7183618e548 |
--- /dev/null |
+++ b/third_party/sqlite/sqlite-src-3080704/test/index5.test |
@@ -0,0 +1,78 @@ |
+# 2012 August 6 |
+# |
+# 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. |
+# |
+#*********************************************************************** |
+# |
+ |
+ |
+set testdir [file dirname $argv0] |
+source $testdir/tester.tcl |
+set ::testprefix index5 |
+ |
+do_test 1.1 { |
+ if {[permutation]=="memsubsys1"} { |
+ execsql { PRAGMA auto_vacuum = 0; } |
+ } |
+ execsql { |
+ PRAGMA page_size = 1024; |
+ CREATE TABLE t1(x); |
+ BEGIN; |
+ } |
+ for {set i 0} {$i < 100000} {incr i} { |
+ execsql { INSERT INTO t1 VALUES(randstr(100,100)) } |
+ } |
+ execsql COMMIT |
+ execsql { |
+ CREATE INDEX i1 ON t1(x); |
+ DROP INDEX I1; |
+ PRAGMA main.page_size; |
+ } |
+} {1024} |
+ |
+db close |
+testvfs tvfs |
+tvfs filter xWrite |
+tvfs script write_cb |
+proc write_cb {xCall file handle iOfst args} { |
+ if {[file tail $file]=="test.db"} { |
+ lappend ::write_list [expr $iOfst/1024 + 1] |
+ } |
+} |
+ |
+do_test 1.2 { |
+ sqlite3 db test.db -vfs tvfs |
+ set ::write_list [list] |
+ execsql { CREATE INDEX i1 ON t1(x) } |
+} {} |
+ |
+do_test 1.3 { |
+ set nForward 0 |
+ set nBackward 0 |
+ set nNoncont 0 |
+ set iPrev [lindex $::write_list 0] |
+ for {set i 1} {$i < [llength $::write_list]} {incr i} { |
+ set iNext [lindex $::write_list $i] |
+ if {$iNext==($iPrev+1)} { |
+ incr nForward |
+ } elseif {$iNext==($iPrev-1)} { |
+ incr nBackward |
+ } else { |
+ incr nNoncont |
+ } |
+ set iPrev $iNext |
+ } |
+ puts -nonewline \ |
+ " (forward=$nForward, back=$nBackward, noncontiguous=$nNoncont)" |
+ |
+ expr {$nForward > 2*($nBackward + $nNoncont)} |
+} {1} |
+db close |
+tvfs delete |
+ |
+finish_test |