Replace coveralls with simplecov

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Gemfile

 source "http://rubygems.org"
 
 group :development, :test do
-  gem 'coveralls', require: false
+  gem 'simplecov', require: false
   gem 'rspec', '~> 2.14.0'
   gem 'webmock'
   gem 'guard'

Gemfile.lock

@@ -6,12 +6,6 @@ GEM
     astrolabe (1.3.0)
       parser (>= 2.2.0.pre.3, < 3.0)
     coderay (1.0.8)
-    coveralls (0.7.1)
-      multi_json (~> 1.3)
-      rest-client
-      simplecov (>= 0.7)
-      term-ansicolor
-      thor
     crack (0.3.1)
     diff-lcs (1.2.5)
     docile (1.1.5)
@@ -26,9 +20,7 @@ GEM
     listen (0.5.3)
     lumberjack (1.0.2)
     method_source (0.8.1)
-    mime-types (2.3)
     multi_json (1.10.1)
-    netrc (0.7.7)
     parser (2.2.0.2)
       ast (>= 1.1, < 3.0)
     powerpack (0.0.9)
@@ -37,9 +29,6 @@ GEM
       method_source (~> 0.8)
       slop (~> 3.3.1)
     rainbow (2.0.0)
-    rest-client (1.7.2)
-      mime-types (>= 1.16, < 3.0)
-      netrc (~> 0.7)
     rspec (2.14.1)
       rspec-core (~> 2.14.0)
       rspec-expectations (~> 2.14.0)
@@ -61,10 +50,7 @@ GEM
       simplecov-html (~> 0.8.0)
     simplecov-html (0.8.0)
     slop (3.3.3)
-    term-ansicolor (1.3.0)
-      tins (~> 1.0)
     thor (0.19.1)
-    tins (1.3.3)
     vcr (2.4.0)
     webmock (1.9.0)
       addressable (>= 2.2.7)
@@ -74,10 +60,13 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  coveralls
   guard
   guard-rspec
   rspec (~> 2.14.0)
   rubocop (= 0.28.0)
+  simplecov
   vcr
   webmock
+
+BUNDLED WITH
+   1.16.1

README.md

@@ -40,10 +40,9 @@ An overview of the four cases described above:
 
 ## Code status
 
-[![build status](https://gitlab.com/gitlab-org/gitlab-shell/badges/master/build.svg)](https://gitlab.com/gitlab-org/gitlab-shell/commits/master)
-[![Build Status](https://semaphoreapp.com/api/v1/projects/a71ddd46-a9cc-4062-875e-7ade19a44927/243336/badge.svg)](https://semaphoreapp.com/gitlabhq/gitlab-shell)
+[![pipeline status](https://gitlab.com/gitlab-org/gitlab-shell/badges/master/pipeline.svg)](https://gitlab.com/gitlab-org/gitlab-shell/commits/master)
+[![coverage report](https://gitlab.com/gitlab-org/gitlab-shell/badges/master/coverage.svg)](https://gitlab.com/gitlab-org/gitlab-shell/commits/master)
 [![Code Climate](https://codeclimate.com/github/gitlabhq/gitlab-shell.svg)](https://codeclimate.com/github/gitlabhq/gitlab-shell)
-[![Coverage Status](https://coveralls.io/repos/gitlabhq/gitlab-shell/badge.svg?branch=master)](https://coveralls.io/r/gitlabhq/gitlab-shell)
 
 ## Requirements
 

spec/spec_helper.rb

 ROOT_PATH = File.expand_path(File.join(File.dirname(__FILE__), ".."))
 
-if ENV['COVERALLS']
-  require 'coveralls'
-  Coveralls.wear!
-else
-  require 'simplecov'
-  SimpleCov.start
-end
+require 'simplecov'
+SimpleCov.start
 
 require 'vcr'
 require 'webmock'