Fixing #687.

git-svn-id: https://reductivelabs.com/svn/puppet/trunk@2662 980ebf18-57e1-0310-9a29-db15c13687c0

CHANGELOG

@@ -1,3 +1,5 @@
+    External node sources can now return undefined classes (#687). 
+
     Puppet clients now have http proxy support (#701).
 
     The parser now throws an error when a resource reference

lib/puppet/parser/interpreter.rb

@@ -28,7 +28,7 @@ class Puppet::Parser::Interpreter
 
             # Then evaluate the classes.
             begin
-                options[:scope].function_include(classes)
+                options[:scope].function_include(classes.find_all { |c| options[:scope].findclass(c) })
             rescue => detail
                 raise Puppet::ParseError, "Could not evaluate classes for %s: %s" % [name, detail]
             end

test/language/interpreter.rb

@@ -853,6 +853,18 @@ class TestInterpreter < PuppetTest::TestCase
 
         assert(scope.classlist.include?("sub"), "NodeDef did not evaluate class")
         assert(scope.classlist.include?("other"), "NodeDef did not evaluate other class")
+
+        # Now make sure nodedef doesn't fail when some classes are not defined (#687).
+        assert_nothing_raised("Could not create a node definition with some invalid classes") do
+            node = NodeDef.new :name => "yay", :classes => %w{base unknown}
+        end
+
+        scope = mkscope :interp => interp
+        assert_nothing_raised("Could not evaluate the node definition with some invalid classes") do
+            node.evaluate(:scope => scope)
+        end
+
+        assert(scope.classlist.include?("base"), "NodeDef did not evaluate class")
     end
 
     # This can stay in the main test suite because it doesn't actually use ldapsearch,