# HG changeset patch
# User Rik <rik@octave.org>
# Date 1380053822 25200
# Node ID 997b700b6ad448f4ce4c2db3ea5bce3f9aa6dee4
# Parent  576cf0589c6d312b9693ae2888dfa3b9bfd2efd7
compass.m: Add %!error input validation tests.

* scripts/plot/compass.m: Add %!error input validation tests.

diff --git a/scripts/plot/compass.m b/scripts/plot/compass.m
--- a/scripts/plot/compass.m
+++ b/scripts/plot/compass.m
@@ -88,7 +88,7 @@
   endif
 
   ## Matlab draws compass plots with the arrow head as one continous line,
-  ## and each arrow separately.  This is completely different than quiver
+  ## and each arrow separately.  This is completely different from quiver
   ## and quite ugly.
   n = length (u);
   xend = u;
@@ -128,3 +128,10 @@
 %! a = toeplitz ([1;randn_9x1_data], [1,randn_1x9_data]);
 %! compass (eig (a));
 
+%% Test input validation
+%!error compass ()
+%!error compass (1,2,3,4)
+%!error compass (1, "-r", 2)
+%!error <invalid linestyle STYLE> compass (1, "abc")
+%!error <invalid linestyle STYLE> compass (1, {1})
+