[CHEF-2092] guard against resource.action not returning an array

chef/lib/chef/provider/subversion.rb

@@ -31,7 +31,7 @@ class Subversion < Chef::Provider
       def load_current_resource
         @current_resource = Chef::Resource::Subversion.new(@new_resource.name)
 
-        unless [:export, :force_export].include?(@new_resource.action.first)
+        unless [:export, :force_export].include?(Array(@new_resource.action).first)
           if current_revision = find_current_revision
             @current_resource.revision current_revision
           end

chef/spec/unit/provider/subversion_spec.rb

@@ -87,7 +87,14 @@
                                         and_return(@exitstatus)
       @provider.find_current_revision.should be_nil
     end
-
+
+    it "finds the current revision when loading the current resource state" do
+      # note: the test is kinda janky, but it provides regression coverage for CHEF-2092
+      @resource.instance_variable_set(:@action, :sync)
+      @provider.should_receive(:find_current_revision).and_return("12345")
+      @provider.load_current_resource
+      @provider.current_resource.revision.should == "12345"
+    end
   end
 
   it "creates the current_resource object and sets its revision to the current deployment's revision as long as we're not exporting" do