Add some tests for network graph

features/project/network.feature

@@ -7,3 +7,19 @@ Feature: Project Network Graph
   @javascript
   Scenario: I should see project network
     Then page should have network graph
+    And page should select "master" in select box
+    And page should have "master" on graph
+
+  @javascript
+  Scenario: I should switch ref to "stable"
+    When I switch ref to "stable"
+    Then page should have network graph
+    And page should select "stable" in select box
+    And page should have "stable" on graph
+
+  @javascript
+  Scenario: I should looking for a commit by SHA of "v2.1.0"
+    When I looking for a commit by SHA of "v2.1.0"
+    Then page should have network graph
+    And page should select "master" in select box
+    And page should have "v2.1.0" on graph

features/steps/project/project_network_graph.rb

@@ -4,16 +4,51 @@ class ProjectNetworkGraph < Spinach::FeatureSteps
 
   Then 'page should have network graph' do
     page.should have_content "Project Network Graph"
-    within ".graph" do
-      page.should have_content "master"
-    end
+    page.should have_selector ".graph"
   end
 
-  And 'I visit project "Shop" network page' do
+  When 'I visit project "Shop" network page' do
     # Stub Graph::JsonBuilder max_size to speed up test (10 commits vs. 650)
     Graph::JsonBuilder.stub(max_count: 10)
 
     project = Project.find_by_name("Shop")
     visit project_graph_path(project, "master")
   end
+
+  And 'page should select "master" in select box' do
+    page.should have_selector '#ref_chzn span', :text => "master"
+  end
+
+  And 'page should have "master" on graph' do
+    within '.graph' do
+      page.should have_content 'master'
+    end
+  end
+
+  And 'I switch ref to "stable"' do
+    page.select 'stable', :from => 'ref'
+  end
+
+  And 'page should select "stable" in select box' do
+    page.should have_selector '#ref_chzn span', :text => "stable"
+  end
+
+  And 'page should have "stable" on graph' do
+    within '.graph' do
+      page.should have_content 'stable'
+    end
+  end
+
+  And 'I looking for a commit by SHA of "v2.1.0"' do
+    within ".content .search" do
+      fill_in 'q', :with => '98d6492'
+      find('button').click
+    end
+  end
+
+  And 'page should have "v2.1.0" on graph' do
+    within '.graph' do
+      page.should have_content 'v2.1.0'
+    end
+  end
 end