test for memory leak

1 files changed, 20 insertions, 1 deletions

diff --git a/tests/compExpr.test b/tests/compExpr.test
index 341d88a..c3e68c1 100644
--- a/tests/compExpr.test
+++ b/tests/compExpr.test
@@ -8,7 +8,7 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 #
-# RCS: @(#) $Id: compExpr.test,v 1.16 2007/12/13 15:26:06 dgp Exp $
+# RCS: @(#) $Id: compExpr.test,v 1.17 2008/01/16 21:54:33 dgp Exp $
 
 if {[lsearch [namespace children] ::tcltest] == -1} {
     package require tcltest
@@ -342,6 +342,25 @@ test compExpr-7.1 {Memory Leak} -constraints memory -setup {
     rename getbytes {}
 } -result 0
 
+test compExpr-7.2 {[Bug 1869989]: expr parser memleak} -constraints memory -setup {
+    proc getbytes {} {
+        set lines [split [memory info] \n]
+        lindex $lines 3 3
+    }
+} -body {
+    set i 5
+    set end [getbytes]
+    while {[incr i -1]} {
+        expr ${i}000
+        set tmp $end
+        set end [getbytes]
+    }
+    set leakedBytes [expr {$end - $tmp}]
+} -cleanup {
+    unset end i tmp
+    rename getbytes {}
+} -result 0
+
 # cleanup
 catch {unset a}
 catch {unset b}