diff --git a/spec/models/todo_spec.rb b/spec/models/todo_spec.rb
new file mode 100644
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--- /dev/null
+++ b/spec/models/todo_spec.rb
@@ -0,0 +1,196 @@
+require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
+
+describe Todo do
+  def valid_attributes(attributes={})
+    {
+      :description => "don't forget the milk",
+      :context     => mock_model(Context, :name => 'errands')
+    }.merge(attributes)
+  end
+
+  def create_todo(attributes={})
+    todo = Todo.new(valid_attributes(attributes))
+    todo.stub!(:user).and_return(mock_model(User, :date => Time.now))
+    todo.save!
+    todo
+  end
+
+  before(:each) do
+    @todo = Todo.new
+  end
+
+  it_should_belong_to :context
+  it_should_belong_to :project
+  it_should_belong_to :user
+
+  it_should_validate_presence_of :description
+  it_should_validate_presence_of :context
+  it_should_validate_length_of :description,  :maximum => 100
+  it_should_validate_length_of :notes,        :maximum => 60_000
+
+  it 'validates presence of show_from when deferred'
+
+  it 'ensures that show_from is a date in the future' do
+    todo = Todo.new(valid_attributes)
+    todo.stub!(:user).and_return(mock_model(User, :date => Time.now))
+    todo.show_from = 3.days.ago
+    todo.should have(1).error_on(:show_from)
+  end
+
+  it 'allows show_from to be blank' do
+    todo = Todo.new(valid_attributes(:show_from => ''))
+    todo.should_not have(:any).error_on(:show_from)
+  end
+
+  describe 'states' do
+    it 'is active on initializing' do
+      create_todo.should be_active
+    end
+
+    it 'is deferred when show from is in the future' do
+      create_todo(:show_from => 1.week.from_now).should be_deferred
+    end
+
+    describe 'active' do
+      %w(project_hidden completed deferred).each do |from_state|
+        it "is activable from `#{from_state}'" do
+          todo = create_todo
+          todo.state = from_state
+          todo.send("#{from_state}?").should be_true
+          todo.activate!
+          todo.should be_active
+        end
+      end
+
+      it 'clears show_from when entering active state' do
+        todo = create_todo
+        todo.show_from = 3.days.from_now
+        todo.should be_deferred
+        todo.activate!
+        todo.should be_active
+        todo.show_from.should be_nil
+      end
+
+      it 'clears completed_at when entering active state' do
+        todo = create_todo
+        todo.complete!
+        todo.should be_completed
+        todo.activate!
+        todo.should be_active
+        todo.completed_at.should be_nil
+      end
+    end
+
+    describe 'completed' do
+      %w(active project_hidden deferred).each do |from_state|
+        it "is completable from `#{from_state}'" do
+          todo = create_todo
+          todo.state = from_state
+          todo.send("#{from_state}?").should be_true
+          todo.complete!
+          todo.should be_completed
+        end
+      end
+
+      it 'sets complated_at' do
+        todo = create_todo
+        todo.complete!
+        todo.completed_at.should_not be_nil
+      end
+    end
+
+    describe 'project_hidden' do
+      %w(active deferred).each do |from_state|
+        it "is hiddable from `#{from_state}'" do
+          todo = create_todo
+          todo.state = from_state
+          todo.send("#{from_state}?").should be_true
+          todo.hide!
+          todo.should be_project_hidden
+        end
+      end
+
+      it 'unhides to deferred when if show_from' do
+        todo = create_todo(:show_from => 4.days.from_now)
+        todo.hide!
+        todo.should be_project_hidden
+        todo.unhide!
+        todo.should be_deferred
+      end
+
+      it 'unhides to active when not show_from' do
+        todo = create_todo(:show_from => '')
+        todo.hide!
+        todo.should be_project_hidden
+        todo.unhide!
+        todo.should be_active
+      end
+    end
+
+    it "is deferrable from `active'" do
+      todo = create_todo
+      todo.activate!
+      todo.should be_active
+      todo.defer!
+      todo.should be_deferred
+    end
+  end
+
+  describe 'when toggling completion' do
+    it 'toggles to active when completed' do
+      todo = create_todo
+      todo.complete!
+      todo.should be_completed
+      todo.toggle_completion!
+      todo.should be_active
+    end
+
+    it 'toggles to completed when not completed' do
+      todo = create_todo
+      todo.should_not be_completed
+      todo.toggle_completion!
+      todo.should be_completed
+    end
+  end
+
+  describe 'when retrieving project' do
+    it 'returns project if set' do
+      project = mock_model(Project)
+      todo = Todo.new(:project => project)
+      todo.project.should == project
+    end
+
+    it 'returns a NullProject if not set' do
+      Todo.new.project.should be_an_instance_of(NullProject)
+    end
+  end
+
+  describe('when setting show_from') { it 'is speced' }
+
+  it 'is starred if tag is "starred"' do
+    todo = create_todo
+    todo.should_not be_starred
+    todo.add_tag('starred')
+    todo.reload
+    todo.should be_starred
+  end
+
+  describe 'when toggling star flag' do
+    it 'toggles to not starred when starred' do
+      todo = create_todo
+      todo.add_tag('starred')
+      todo.should be_starred
+      todo.toggle_star!
+      todo.reload
+      todo.should_not be_starred
+    end
+
+    it 'toggles to starred when not starred' do
+      todo = create_todo
+      todo.should_not be_starred
+      todo.toggle_star!
+      todo.reload
+      todo.should be_starred
+    end
+  end
+end