1 files changed, 8 insertions, 0 deletions
diff --git a/tests/canvas.test b/tests/canvas.test
index 065de67..19fbbde 100644
--- a/tests/canvas.test
+++ b/tests/canvas.test
@@ -526,6 +526,14 @@ test canvas-11.2 {canvas poly overlap fill check, bug 226357} -setup {
     .c itemconfig 1 -width 8
     lappend result [.c find over 45 50 45 50];	# outside poly
 } -result {1 1 {} 1 {} 1 1 {} 1 {} 1}
+test canvas-11.3 {canvas poly dchars, bug 3291543} {
+    # This would crash
+    destroy .c
+    pack [canvas .c]
+    .c create polygon 0 0 0 10 10 0
+    .c dchars 1 2 end
+    .c coords 1
+} {}
 
 test canvas-12.1 {canvas mm obj, patch SF-403327, 102471} -setup {
     destroy .c