Tests and fix for [menubutton ... -textvariable].

1 files changed, 28 insertions, 0 deletions

diff --git a/tests/menubut.test b/tests/menubut.test
index 6efdb0f..93b2482 100644
--- a/tests/menubut.test
+++ b/tests/menubut.test
@@ -747,6 +747,34 @@ test menubutton-8.1 {menubutton vs hidden commands} -body {
     expr {$res1 eq $res2}
 } -result 1
 
+test menubutton-9.1 {Bug [5d991b822e]} {
+    # Want this not to segfault, or write to variable with empty name
+    set var INIT
+    menubutton .b -textvariable var
+    trace add variable var unset {apply {args {
+        .b configure -textvariable {}
+    }}}
+    pack .b
+    bind .b <Configure> {unset var}
+    update
+    destroy .b
+    info exists {}
+} 0
+test menubutton-9.2 {Bug [5d991b822e]} {
+    # Want this not to leak traces
+    set var INIT
+    menubutton .b -textvariable var
+    trace add variable var unset {apply {args {
+        .b configure -textvariable new
+    }}}
+    pack .b
+    bind .b <Configure> {unset -nocomplain var}
+    update
+    destroy .b
+    unset new
+} {}
+
+
 
 
 deleteWindows