added default depth option to Key object

lib/redistat/key.rb

@@ -9,13 +9,21 @@ module Redistat
       @scope = scope
       self.label = label if !label.nil?
       self.date = date ||= Time.now
-      self.options = options
+      @options = default_options.merge(options ||= {})
+    end
+    
+    def default_options
+      { :depth => :day }
     end
     
     def date=(input)
       @date = (input.instance_of?(Redistat::Date)) ? input : Date.new(input) # Redistat::Date, not ::Date
     end
     
+    def depth
+      @options[:depth]
+    end
+    
     def label
       @label.name
     end
@@ -29,7 +37,7 @@ module Redistat
     end
     
     def to_s(depth = nil)
-      depth ||= @options[:depth] if !@options[:depth].nil?
+      depth ||= @options[:depth]
       key = "#{@scope}"
       key << "/" + ((@options[:label_hash].nil? || @options[:label_hash] == true) ? @label.hash : @label.name) if !label.nil?
       key << ":#{@date.to_s(depth)}"

spec/key_spec.rb

@@ -7,7 +7,7 @@ describe Redistat::Key do
     @label = "about_us"
     @label_hash = Digest::SHA1.hexdigest(@label)
     @date = Time.now
-    @key = Redistat::Key.new(@scope, @label, @date, {:depth => :day})
+    @key = Redistat::Key.new(@scope, @label, @date, {:depth => :hour})
   end
   
   it "should initialize properly" do
@@ -19,7 +19,7 @@ describe Redistat::Key do
   end
   
   it "should convert to string properly" do
-    @key.to_s.should == "#{@scope}/#{@label_hash}:#{@key.date.to_s(:day)}"
+    @key.to_s.should == "#{@scope}/#{@label_hash}:#{@key.date.to_s(:hour)}"
     props = [:year, :month, :day, :hour, :min, :sec]
     props.each do
       @key.to_s(props.last).should == "#{@scope}/#{@label_hash}:#{@key.date.to_s(props.last)}"
@@ -28,10 +28,15 @@ describe Redistat::Key do
   end
   
   it "should abide to hash_label option" do
-    @key = Redistat::Key.new(@scope, @label, @date, {:depth => :day, :label_hash => true})
-    @key.to_s.should == "#{@scope}/#{@label_hash}:#{@key.date.to_s(:day)}"
-    @key = Redistat::Key.new(@scope, @label, @date, {:depth => :day, :label_hash => false})
-    @key.to_s.should == "#{@scope}/#{@label}:#{@key.date.to_s(:day)}"
+    @key = Redistat::Key.new(@scope, @label, @date, {:depth => :hour, :label_hash => true})
+    @key.to_s.should == "#{@scope}/#{@label_hash}:#{@key.date.to_s(:hour)}"
+    @key = Redistat::Key.new(@scope, @label, @date, {:depth => :hour, :label_hash => false})
+    @key.to_s.should == "#{@scope}/#{@label}:#{@key.date.to_s(:hour)}"
+  end
+  
+  it "should have default depth option" do
+    @key = Redistat::Key.new(@scope, @label, @date)
+    @key.depth.should == :day
   end
   
   it "should allow changing attributes" do