diff --git a/spec/factories/project_statistic.rb b/spec/factories/project_statistic.rb
new file mode 100644
index 000000000..ec381ef09
--- /dev/null
+++ b/spec/factories/project_statistic.rb
@@ -0,0 +1,7 @@
+# -*- encoding : utf-8 -*-
+FactoryGirl.define do
+  factory :project_statistic do
+    association :project, :factory => :project
+    association :arch,    :factory => :arch
+  end
+end
diff --git a/spec/models/project_statistic_spec.rb b/spec/models/project_statistic_spec.rb
new file mode 100644
index 000000000..e13a0ec20
--- /dev/null
+++ b/spec/models/project_statistic_spec.rb
@@ -0,0 +1,24 @@
+require 'spec_helper'
+
+describe ProjectStatistic do
+
+  context 'ensures that validations and associations exist' do
+    it { should belong_to(:project) }
+    it { should belong_to(:arch) }
+
+    it { should validate_presence_of(:project_id) }
+    it { should validate_presence_of(:arch_id) }
+    it { should validate_presence_of(:average_build_time) }
+    it { should validate_presence_of(:build_count) }
+
+    it { should_not allow_mass_assignment_of(:project_id) }
+    it { should_not allow_mass_assignment_of(:arch_id) }
+
+    it 'uniqueness of project_id and arch_id' do
+      FactoryGirl.create(:project_statistic)
+      should validate_uniqueness_of(:project_id).scoped_to(:arch_id)
+    end
+
+  end
+
+end