Adding the Social Graph API methods w/ tests.

Signed-off-by: John Nunemaker <nunemaker@gmail.com>

lib/twitter/base.rb

@@ -35,6 +35,13 @@ def friends_for(id, options={})
       friends(options.merge({:id => id}))
     end
 
+    # Returns an array of user ids who are friends for the account or the option id/username passed in
+    def friend_ids(id_or_screenname = nil)
+      path = id_or_screenname ? "friends/ids/#{id_or_screenname}.xml" : "friends/ids.xml"
+      doc = request(path, :auth => true)
+      (doc/:id).inject([]) {|ids, id| ids << id.innerHTML; ids}
+    end
+
     # Returns an array of users who are following you
     def followers(options={})
       users(call(:followers, {:args => parse_options(options)}))
@@ -44,6 +51,13 @@ def followers_for(id, options={})
       followers(options.merge({:id => id}))
     end
 
+    # Returns an array of user ids who are followers for the account or the option id/username passed in
+    def follower_ids(id_or_screenname = nil)
+      path = id_or_screenname ? "followers/ids/#{id_or_screenname}.xml" : "followers/ids.xml"
+      doc = request(path, :auth => true)
+      (doc/:id).inject([]) {|ids, id| ids << id.innerHTML; ids}
+    end
+
     # Returns a single status for a given id
     def status(id)
       statuses(call("show/#{id}")).first

spec/base_spec.rb

@@ -54,6 +54,12 @@
       @base.friends(:lite => true).size.should == 15
     end
 
+    it "should be able to get friend ids" do
+      data = open(File.dirname(__FILE__) + '/fixtures/friend_ids.xml').read
+      @base.should_receive(:request).and_return(Hpricot::XML(data))
+      @base.friend_ids.size.should == 8
+    end
+
     it "should be able to get friends for another user" do
       data = open(File.dirname(__FILE__) + '/fixtures/friends_for.xml').read
       @base.should_receive(:request).and_return(Hpricot::XML(data))
@@ -70,6 +76,12 @@
       timeline.first.name.should == 'Blaine Cook'
     end
 
+    it "should be able to get follower ids" do
+      data = open(File.dirname(__FILE__) + '/fixtures/follower_ids.xml').read
+      @base.should_receive(:request).and_return(Hpricot::XML(data))
+      @base.follower_ids.size.should == 8
+    end
+
     it "should be able to create a friendship" do
       data = open(File.dirname(__FILE__) + '/fixtures/friendship_created.xml').read
       @base.should_receive(:request).and_return(Hpricot::XML(data))

spec/fixtures/follower_ids.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ids>
+<id>1192</id>
+<id>750823</id>
+<id>813198</id>
+<id>10718</id>
+<id>13046</id>
+<id>79543</id>
+<id>813775</id>
+<id>681473</id>
+</ids>

spec/fixtures/friend_ids.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ids>
+<id>1192</id>
+<id>780561</id>
+<id>10718</id>
+<id>750823</id>
+<id>643443</id>
+<id>813198</id>
+<id>13046</id>
+<id>147093</id>
+</ids>
+