make values exist before trying to remove them

neography.gemspec

@@ -19,7 +19,7 @@ Gem::Specification.new do |s|
   s.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
   s.require_paths = ["lib"]
 
-  s.add_development_dependency "rspec", ">= 2.0"
+  s.add_development_dependency "rspec", ">= 2.11"
   s.add_development_dependency "net-http-spy", "0.2.1"
   s.add_development_dependency "rake", ">= 0.8.7"
   s.add_dependency "httparty", ">= 0.8.1"

spec/unit/config_spec.rb

@@ -37,7 +37,7 @@ module Neography
           :password       => nil,
           :parser         => { :parser => MultiJsonParser }
         }
-        subject.to_hash.should == expected_hash
+        config.to_hash.should == expected_hash
       end
 
     end

spec/unit/properties_spec.rb

@@ -40,11 +40,13 @@ module Neography
 
       it "resets properties as accessor" do
         @db.should_receive(:"remove_node_properties").with(42, ["key"])
+        node.key = "value"
         node.key = nil
       end
 
       it "resets properties as array entry" do
         @db.should_receive(:"remove_node_properties").with(42, ["key"])
+        node["key"] = "value"
         node["key"] = nil
       end
 
@@ -104,11 +106,13 @@ module Neography
 
       it "resets properties as accessor" do
         @db.should_receive(:"remove_relationship_properties").with(42, ["key"])
+        relationship.key = "value"
         relationship.key = nil
       end
 
       it "resets properties as array entry" do
         @db.should_receive(:"remove_relationship_properties").with(42, ["key"])
+        relationship["key"] = "value"
         relationship["key"] = nil
       end