Add test-prof

Signed-off-by: Rémy Coutable <remy@rymai.me>

Gemfile

@@ -362,6 +362,7 @@ group :test do
   gem 'sham_rack', '~> 1.3.6'
   gem 'timecop', '~> 0.8.0'
   gem 'concurrent-ruby', '~> 1.0.5'
+  gem 'test-prof', '~> 0.2.5'
 end
 
 gem 'octokit', '~> 4.6.2'

Gemfile.lock

@@ -882,6 +882,7 @@ GEM
       ffi
     sysexits (1.2.0)
     temple (0.7.7)
+    test-prof (0.2.5)
     test_after_commit (1.1.0)
       activerecord (>= 3.2)
     text (1.3.1)
@@ -1163,6 +1164,7 @@ DEPENDENCIES
   stackprof (~> 0.2.10)
   state_machines-activerecord (~> 0.4.0)
   sys-filesystem (~> 1.1.6)
+  test-prof (~> 0.2.5)
   test_after_commit (~> 1.1)
   thin (~> 1.7.0)
   timecop (~> 0.8.0)