Add confidence helper tests.

To cover a refactor.
unamashana · Apr 24, 2012 · 02b59b0 · 02b59b0
1 parent e2c7074
commit 02b59b0
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/spec/dashboard_helpers_spec.rb b/spec/dashboard_helpers_spec.rb
@@ -8,5 +8,13 @@
     it 'should handle very small numbers' do
       confidence_level(Complex(2e-18, -0.03)).should eql('No Change')
     end
+
+    it "should consider a z-score of 1.96 < z < 2.57 as 95% confident" do
+      confidence_level(2.12).should eql('95% confidence')
+    end
+
+    it "should consider a z-score of -1.96 > z > -2.57 as 95% confident" do
+      confidence_level(-2.12).should eql('95% confidence')
+    end
   end
-end
+end