1 files changed, 14 insertions, 4 deletions
diff --git a/tests/entry.test b/tests/entry.test
index eeebe5d..785dd0b 100644
--- a/tests/entry.test
+++ b/tests/entry.test
@@ -2305,10 +2305,20 @@ test entry-8.18 {DeleteChars procedure} -setup {
     .e insert 0 "xyzzy"
     update
     .e delete 2 4
-    winfo reqwidth .e
-} -cleanup {
-    destroy .e
-} -result {31}
+    # To check that deletion actually happened we measure the new width
+    # of the widget, based on the measuring width of the remaining text ("xyy")
+    # in the widget. For that purpose we have to mirror the code in tkEntry.c
+    # for computation of the reqwidth
+    # note: XPAD corresponds to the hardcoded    #define XPAD 1
+    set XPAD 1
+    set expected [expr { [font measure [.e cget -font] "xyy"] \
+                          + 2 * ( [.e cget -borderwidth] + \
+                                [.e cget -highlightthickness] + $XPAD ) } ]
+    expr {[winfo reqwidth .e] == $expected}
+} -cleanup {
+    destroy .e
+    unset XPAD expected
+} -result {1}
 
 test entry-9.1 {EntryValueChanged procedure} -setup {
     unset -nocomplain x