Don't ignore that test.

.gitignore

@@ -1,2 +1,2 @@
-Math-Fractal-Julia*
+/Math-Fractal-Julia*
 .build

t/Math-Fractal-Julia.t

@@ -0,0 +1,19 @@
+# Before `make install' is performed this script should be runnable with
+# `make test'. After `make install' it should work as `perl Math-Fractal-Julia.t'
+
+#########################
+
+# change 'tests => 1' to 'tests => last_test_to_print';
+
+use strict;
+use warnings;
+
+use Test::More tests => 2;
+BEGIN { use_ok('Math::Fractal::Julia') };
+
+#########################
+
+# Insert your test code below, the Test::More module is use()ed here so read
+# its man page ( perldoc Test::More ) for help writing this test script.
+
+is(Math::Fractal::Julia->set_max_iter(255), 255);