Merge branch 'coverage' into 'master'

Rounded coverage on commit page

https://dev.gitlab.org/gitlab/gitlab-ci/issues/312

See merge request !184

app/models/commit.rb

@@ -208,7 +208,7 @@ class Commit < ActiveRecord::Base
     if project.coverage_enabled? && builds.count(:all) > 0
       coverage_array = builds.map(&:coverage).compact
       if coverage_array.size >= 1
-        coverage_array.reduce(:+) / coverage_array.size
+        '%.2f' % (coverage_array.reduce(:+) / coverage_array.size)
       end
     end
   end

spec/models/commit_spec.rb

@@ -167,14 +167,14 @@ describe Commit do
     it "calculates average when there are two builds with coverage" do
       FactoryGirl.create :build, coverage: 30, commit: commit
       FactoryGirl.create :build, coverage: 40, commit: commit
-      commit.coverage.should == 35.0
+      commit.coverage.should == "35.00"
     end
     it "calculates average when there are two builds with coverage and one with nil" do
       FactoryGirl.create :build, coverage: 30, commit: commit
       FactoryGirl.create :build, coverage: 40, commit: commit
       FactoryGirl.create :build, commit: commit
-      commit.coverage.should == 35.0
+      commit.coverage.should == "35.00"
     end
     it "calculates average when there is one build without coverage" do