# HG changeset patch
# User Thomas Weber <thomas.weber.mail@gmail.com>
# Date 1265105026 18000
# Node ID edfceeab945aa266b5339fbb2bdb1405a0e41fb5
# Parent  f751dae7aab8844c294eed064ca1bc6593b4ac60
Add test case for empty argument in filter()

diff -r f751dae7aab8 -r edfceeab945a src/ChangeLog
--- a/src/ChangeLog	Tue Feb 02 04:39:29 2010 -0500
+++ b/src/ChangeLog	Tue Feb 02 05:03:46 2010 -0500
@@ -1,3 +1,7 @@
+2010-02-02  Thomas Weber  <thomas.weber.mail@gmail.com>
+
+	* DLD-FUNCTIONS/filter.cc: New tests.
+
 2010-02-02  John W. Eaton  <jwe@octave.org>
 
 	* octave.cc (octave_main): Assume we have atexit.
diff -r f751dae7aab8 -r edfceeab945a src/DLD-FUNCTIONS/filter.cc
--- a/src/DLD-FUNCTIONS/filter.cc	Tue Feb 02 04:39:29 2010 -0500
+++ b/src/DLD-FUNCTIONS/filter.cc	Tue Feb 02 05:03:46 2010 -0500
@@ -735,6 +735,9 @@
 %!  y0 = zeros(4,4,2); y0(1:2,1:4,1) = +1; y0(1:2,1:4,2) = -1;
 %!  y = filter(b, [1], x);
 %!  assert(all(all(all(y==y0))))
+%!
+%!assert(filter(1,ones(10,1)/10,[]), [])
+%!assert(filter(1,ones(10,1)/10,zeros(0,10)), zeros(0,10))
 
 %%  Should put some tests of the "DIM" parameter in here.