--- a/scripts/general/logspace.m
+++ b/scripts/general/logspace.m
@@ -92,3 +92,20 @@
   endif
 
 endfunction
+
+%!test
+%! x1 = logspace (1, 2);
+%! x2 = logspace (1, 2, 10);
+%! x3 = logspace (1, -2, 10);
+%! x4 = logspace (1, pi, 10);
+%! assert((size (x1) == [1, 50] && x1(1) == 10 && x1(50) == 100
+%! && size (x2) == [1, 10] && x2(1) == 10 && x2(10) == 100
+%! && size (x3) == [1, 10] && x3(1) == 10 && x3(10) == 0.01
+%! && size (x4) == [1, 10] && x4(1) == 10 && abs (x4(10) - pi) < sqrt (eps)));
+
+%!error logspace ([1, 2; 3, 4], 5, 6);
+
+%!error logspace ();
+
+%!error logspace (1, 2, 3, 4);
+