# HG changeset patch
# User Kai T. Ohlhus <k.ohlhus@gmail.com>
# Date 1593760243 -32400
# Node ID 8558c6ad4d71019d9780101dfa4778ee84c63808
# Parent  7d601759c23dcaef1a33a8cba6dbd3613213f64a
doc: * scripts/testfun/assert.m: comment changes (bug #58686)

Addition to cset 286fe9352cd6.

diff -r 7d601759c23d -r 8558c6ad4d71 scripts/testfun/assert.m
--- a/scripts/testfun/assert.m	Fri Jul 03 16:02:39 2020 +0900
+++ b/scripts/testfun/assert.m	Fri Jul 03 16:10:43 2020 +0900
@@ -196,6 +196,9 @@
           err.reason{end+1} = "Structure fieldname mismatch";
         else
           try
+            ## Test if both structs are empty, i.e. 0x0, Nx0, or Nx0 structs.
+            ## In this case the values cannot be extracted for comparison as
+            ## they are not assignable and not defined.
             assert (isempty (cond), isempty (expected));
 
             if (! isempty (cond))