From 2ba073133d607356d2e8860e4665ee04797826ad Mon Sep 17 00:00:00 2001
From: Guilherme Rojas V. de Lima <guilhermehrojas@gmail.com>
Date: Tue, 26 Nov 2013 19:43:43 -0200
Subject: [PATCH] Unit tests for module controller.

---
 spec/controllers/modules_controller_spec.rb | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+), 0 deletions(-)

diff --git a/spec/controllers/modules_controller_spec.rb b/spec/controllers/modules_controller_spec.rb
index ad4a070..eec4e10 100644
--- a/spec/controllers/modules_controller_spec.rb
+++ b/spec/controllers/modules_controller_spec.rb
@@ -12,4 +12,44 @@ describe ModulesController do
     it { should respond_with(:success) }
     it { should render_template(:load_module_tree) }
   end
+
+  describe "metric_history" do
+    
+
+    before :each do
+      @module_id = 1
+      @date = "2011-10-20T18:26:43.151+00:00"
+      @metric_name = FactoryGirl.build(:loc).name
+      @metric_result = FactoryGirl.build(:metric_result)
+
+      @module_result = FactoryGirl.build(:module_result)
+      ModuleResult.expects(:new).at_least_once.with({id: @module_result.id.to_s}).returns(@module_result)
+      @module_result.expects(:metric_history).with(@metric_name).returns({@date => @metric_result.value})
+    end
+
+    context "testing existence of the image in the response" do
+      it "should return an image" do
+        get :metric_history, id: @module_result.id, metric_name: @metric_name, module_id: @module_id      
+        response.content_type.should eq "image/png"
+      end
+    end
+
+    context "testing parameter values" do
+      
+      before :each do
+        @graphic = Gruff::Line.new(400)
+        Gruff::Line.expects(:new).with(400).returns(@graphic)
+      end
+
+      it "should return two arrays, one of dates and other of values" do
+        get :metric_history, id: @module_result.id, metric_name: @metric_name, module_id: @module_id
+        @graphic.maximum_value.should eq @metric_result.value
+        @graphic.labels.first[1].should eq @date  
+      end
+    end
+
+    
+
+
+  end 
 end
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