Add Twitter::Tweet#reply?

lib/twitter/tweet.rb

@@ -85,6 +85,15 @@ def repliers_count
     end
     alias reply_count repliers_count
 
+    # @return [Boolean]
+    def reply?
+      !!in_reply_to_status_id
+    end
+
+    def retweet?
+      !!retweeted_status
+    end
+
     # If this Tweet is a retweet, the original Tweet is available here.
     #
     # @return [Twitter::Tweet]

spec/twitter/tweet_spec.rb

@@ -193,6 +193,40 @@
     end
   end
 
+  describe "#reply?" do
+    it "returns true when there is an in-reply-to status" do
+      tweet = Twitter::Tweet.new(:id => 28669546014, :in_reply_to_status_id => 114749583439036416)
+      tweet.reply?.should be_true
+    end
+    it "returns false when in_reply_to_status_id is not set" do
+      tweet = Twitter::Tweet.new(:id => 28669546014)
+      tweet.reply?.should be_false
+    end
+  end
+
+  describe "#retweet?" do
+    it "returns true when there is a retweeted status" do
+      tweet = Twitter::Tweet.new(:id => 28669546014, :retweeted_status => {:id => 28561922516, :text => 'BOOSH'})
+      tweet.retweet?.should be_true
+    end
+    it "returns false when retweeted_status is not set" do
+      tweet = Twitter::Tweet.new(:id => 28669546014)
+      tweet.retweet?.should be_false
+    end
+  end
+
+  describe "#retweeted_status" do
+    it "has text when retweeted_status is set" do
+      tweet = Twitter::Tweet.new(:id => 28669546014, :retweeted_status => {:id => 28561922516, :text => 'BOOSH'})
+      tweet.retweeted_tweet.should be_a Twitter::Tweet
+      tweet.retweeted_tweet.text.should eq 'BOOSH'
+    end
+    it "returns nil when retweeted_status is not set" do
+      tweet = Twitter::Tweet.new(:id => 28669546014)
+      tweet.retweeted_tweet.should be_nil
+    end
+  end
+
   describe "#retweeters_count" do
     it "returns the count of favoriters when retweet_count is set" do
       tweet = Twitter::Tweet.new(:id => 28669546014, :retweet_count => '1')