fixes #6

Author: jkraemer

lib/redmine_gtt_print/mapfish.rb

@@ -20,13 +20,14 @@ def layouts(print_config)
       end
     end
 
+    # returns capabilities document for the given print config,
+    # nil if no print_config is given or no capabilities were found for it.
     def get_capabilities(print_config)
+      return unless print_config
       str = URI.escape(print_config)
       r = HTTParty.get "#{@host}/print/#{str}/capabilities.json"
       if r.success?
-        JSON.parse r.body
-      else
-        :not_found
+        return JSON.parse r.body
       end
     end
 

test/integration/mapfish_test.rb

@@ -23,6 +23,10 @@ class MapfishTest < ActionDispatch::IntegrationTest
     assert configs.include?("DEMO_gtt")
   end
 
+  test "should handle nil print config" do
+    assert_nil @mapfish.layouts nil
+  end
+
   test "should have layouts for print config" do
     assert layouts = @mapfish.layouts("DEMO_gtt")
     assert_equal Array, layouts.class