Support symbols in context

Author: Amir Tocker

lib/cloudinary/utils.rb

@@ -681,7 +681,7 @@ def self.encode_hash(hash)
   # @private
   def self.encode_context(hash)
     case hash
-      when Hash then hash.map{|k,v| "#{k}=#{v.gsub(/([=|])/, '\\\\\1')}"}.join("|")
+      when Hash then hash.map{|k,v| "#{k}=#{v.to_s.gsub(/([=|])/, '\\\\\1')}"}.join("|")
       when nil then ""
       else hash
     end

spec/utils_spec.rb

@@ -876,4 +876,20 @@
 
     end
   end
+
+  describe "context" do
+    it 'should escape pipe and backslash characters' do
+      context = {"caption" => "different = caption", "alt2" => "alt|alternative"}
+      result = Cloudinary::Utils.encode_context(context)
+      expect(result).to eq("caption=different \\= caption|alt2=alt\\|alternative")
+                            .or eq("alt2=alt\\|alternative|caption=different \\= caption")
+
+    end
+    it 'should support symbols' do
+      context = {:symbol_key => "string_value", "string_key" => :symbol_value}
+      result = Cloudinary::Utils.encode_context(context)
+      expect(result).to eq("string_key=symbol_value|symbol_key=string_value")
+                  .or eq("symbol_key=string_value|string_key=symbol_value")
+    end
+  end
 end