diff --git a/.rubocop.yml b/.rubocop.yml
index 8685f88..ce1de33 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -3,7 +3,6 @@ AllCops:
   Exclude:
     - db/**/*
     - config/**/*
-    - test/*
     - Vagrantfile
   TargetRubyVersion: 2.3
 
diff --git a/test/test_config.rb b/test/test_config.rb
index 49af82c..8ad7369 100644
--- a/test/test_config.rb
+++ b/test/test_config.rb
@@ -20,17 +20,18 @@ class TestConfig < Test::Unit::TestCase
   end
 
   def test_00_config
-    data = { gpg_key: 'test@example.com',
-             lang: 'en',
-             wallet_dir: '/tmp/test',
-             gpg_exe: '',
-           }
+    data = {
+      gpg_key: 'test@example.com',
+      lang: 'en',
+      wallet_dir: '/tmp/test',
+      gpg_exe: ''
+    }
 
     @config = MPW::Config.new
     @config.setup(data)
     @config.load_config
 
-    data.each do |k,v|
+    data.each do |k, v|
       assert_equal(v, @config.send(k))
     end
 
@@ -39,11 +40,12 @@ class TestConfig < Test::Unit::TestCase
   end
 
   def test_01_password
-    data = { pwd_alpha: false,
-             pwd_numeric: false,
-             pwd_special: true,
-             pwd_length: 32,
-           }
+    data = {
+      pwd_alpha: false,
+      pwd_numeric: false,
+      pwd_special: true,
+      pwd_length: 32
+    }
 
     @config = MPW::Config.new
     @config.load_config
diff --git a/test/test_item.rb b/test/test_item.rb
index 751e1b0..961834e 100644
--- a/test/test_item.rb
+++ b/test/test_item.rb
@@ -16,22 +16,22 @@ class TestItem < Test::Unit::TestCase
     I18n.load_path      = Dir['./i18n/cli/*.yml']
     I18n.default_locale = :en
 
-
     puts
   end
 
   def test_00_add_without_name
-    assert_raise(RuntimeError){MPW::Item.new}
+    assert_raise(RuntimeError) { MPW::Item.new }
   end
 
   def test_01_add_new
-    data = { group:    @fixtures['add_new']['group'],
-             host:     @fixtures['add_new']['host'],
-             protocol: @fixtures['add_new']['protocol'],
-             user:     @fixtures['add_new']['user'],
-             port:     @fixtures['add_new']['port'],
-             comment:  @fixtures['add_new']['comment'],
-           }
+    data = {
+      group:    @fixtures['add_new']['group'],
+      host:     @fixtures['add_new']['host'],
+      protocol: @fixtures['add_new']['protocol'],
+      user:     @fixtures['add_new']['user'],
+      port:     @fixtures['add_new']['port'],
+      comment:  @fixtures['add_new']['comment']
+    }
 
     item = MPW::Item.new(data)
 
@@ -47,15 +47,16 @@ class TestItem < Test::Unit::TestCase
   end
 
   def test_02_add_existing
-    data = { id:       @fixtures['add_existing']['id'],
-             group:    @fixtures['add_existing']['group'],
-             host:     @fixtures['add_existing']['host'],
-             protocol: @fixtures['add_existing']['protocol'],
-             user:     @fixtures['add_existing']['user'],
-             port:     @fixtures['add_existing']['port'],
-             comment:  @fixtures['add_existing']['comment'],
-             created:  @fixtures['add_existing']['created'],
-           }
+    data = {
+      id:       @fixtures['add_existing']['id'],
+      group:    @fixtures['add_existing']['group'],
+      host:     @fixtures['add_existing']['host'],
+      protocol: @fixtures['add_existing']['protocol'],
+      user:     @fixtures['add_existing']['user'],
+      port:     @fixtures['add_existing']['port'],
+      comment:  @fixtures['add_existing']['comment'],
+      created:  @fixtures['add_existing']['created']
+    }
 
     item = MPW::Item.new(data)
 
@@ -73,13 +74,14 @@ class TestItem < Test::Unit::TestCase
   end
 
   def test_03_update
-    data = { group:    @fixtures['add_new']['group'],
-             host:     @fixtures['add_new']['host'],
-             protocol: @fixtures['add_new']['protocol'],
-             user:     @fixtures['add_new']['user'],
-             port:     @fixtures['add_new']['port'],
-             comment:  @fixtures['add_new']['comment'],
-           }
+    data = {
+      group:    @fixtures['add_new']['group'],
+      host:     @fixtures['add_new']['host'],
+      protocol: @fixtures['add_new']['protocol'],
+      user:     @fixtures['add_new']['user'],
+      port:     @fixtures['add_new']['port'],
+      comment:  @fixtures['add_new']['comment']
+    }
 
     item = MPW::Item.new(data)
 
@@ -89,13 +91,14 @@ class TestItem < Test::Unit::TestCase
     created   = item.created
     last_edit = item.last_edit
 
-    data = { group:    @fixtures['update']['group'],
-             host:     @fixtures['update']['host'],
-             protocol: @fixtures['update']['protocol'],
-             user:     @fixtures['update']['user'],
-             port:     @fixtures['update']['port'],
-             comment:  @fixtures['update']['comment'],
-           }
+    data = {
+      group:    @fixtures['update']['group'],
+      host:     @fixtures['update']['host'],
+      protocol: @fixtures['update']['protocol'],
+      user:     @fixtures['update']['user'],
+      port:     @fixtures['update']['port'],
+      comment:  @fixtures['update']['comment']
+    }
 
     sleep(1)
     assert(item.update(data))
@@ -114,13 +117,14 @@ class TestItem < Test::Unit::TestCase
   end
 
   def test_05_update_one_element
-    data = { group:    @fixtures['add_new']['group'],
-             host:     @fixtures['add_new']['host'],
-             protocol: @fixtures['add_new']['protocol'],
-             user:     @fixtures['add_new']['user'],
-             port:     @fixtures['add_new']['port'],
-             comment:  @fixtures['add_new']['comment'],
-           }
+    data = {
+      group:    @fixtures['add_new']['group'],
+      host:     @fixtures['add_new']['host'],
+      protocol: @fixtures['add_new']['protocol'],
+      user:     @fixtures['add_new']['user'],
+      port:     @fixtures['add_new']['port'],
+      comment:  @fixtures['add_new']['comment']
+    }
 
     item = MPW::Item.new(data)
 
@@ -130,7 +134,7 @@ class TestItem < Test::Unit::TestCase
     last_edit = item.last_edit
 
     sleep(1)
-    assert(item.update({comment: @fixtures['update']['comment']}))
+    assert(item.update(comment: @fixtures['update']['comment']))
 
     assert_equal(@fixtures['add_new']['group'],     item.group)
     assert_equal(@fixtures['add_new']['host'],      item.host)
@@ -143,13 +147,14 @@ class TestItem < Test::Unit::TestCase
   end
 
   def test_05_delete
-    data = { group:    @fixtures['add_new']['group'],
-             host:     @fixtures['add_new']['host'],
-             protocol: @fixtures['add_new']['protocol'],
-             user:     @fixtures['add_new']['user'],
-             port:     @fixtures['add_new']['port'],
-             comment:  @fixtures['add_new']['comment'],
-           }
+    data = {
+      group:    @fixtures['add_new']['group'],
+      host:     @fixtures['add_new']['host'],
+      protocol: @fixtures['add_new']['protocol'],
+      user:     @fixtures['add_new']['user'],
+      port:     @fixtures['add_new']['port'],
+      comment:  @fixtures['add_new']['comment']
+    }
 
     item = MPW::Item.new(data)
 
diff --git a/test/test_mpw.rb b/test/test_mpw.rb
index 30c9028..dd005ca 100644
--- a/test/test_mpw.rb
+++ b/test/test_mpw.rb
@@ -33,13 +33,14 @@ class TestMPW < Test::Unit::TestCase
   end
 
   def test_02_add_item
-    data = { group:    @fixtures['add_new']['group'],
-             host:     @fixtures['add_new']['host'],
-             protocol: @fixtures['add_new']['protocol'],
-             user:     @fixtures['add_new']['user'],
-             port:     @fixtures['add_new']['port'],
-             comment:  @fixtures['add_new']['comment'],
-           }
+    data = {
+      group:    @fixtures['add_new']['group'],
+      host:     @fixtures['add_new']['host'],
+      protocol: @fixtures['add_new']['protocol'],
+      user:     @fixtures['add_new']['user'],
+      port:     @fixtures['add_new']['port'],
+      comment:  @fixtures['add_new']['comment']
+    }
 
     item = MPW::Item.new(data)
 
@@ -53,7 +54,7 @@ class TestMPW < Test::Unit::TestCase
     assert_equal(1, @mpw.list.length)
 
     item = @mpw.list[0]
-    @fixtures['add_new'].each do |k,v|
+    @fixtures['add_new'].each do |k, v|
       if k == 'password'
         assert_equal(v, @mpw.get_password(item.id))
       else
@@ -69,7 +70,7 @@ class TestMPW < Test::Unit::TestCase
     assert_equal(1, @mpw.list.length)
 
     item = @mpw.list[0]
-    @fixtures['add_new'].each do |k,v|
+    @fixtures['add_new'].each do |k, v|
       if k == 'password'
         assert_equal(v, @mpw.get_password(item.id))
       else
@@ -80,13 +81,9 @@ class TestMPW < Test::Unit::TestCase
 
   def test_04_delete_item
     @mpw.read_data
-
     assert_equal(1, @mpw.list.length)
 
-    @mpw.list.each do |item|
-      item.delete
-    end
-
+    @mpw.list.each(&:delete)
     assert_equal(0, @mpw.list.length)
 
     @mpw.write_data
@@ -96,13 +93,14 @@ class TestMPW < Test::Unit::TestCase
     @mpw.read_data
 
     @fixtures.each_value do |v|
-      data = { group:    v['group'],
-               host:     v['host'],
-               protocol: v['protocol'],
-               user:     v['user'],
-               port:     v['port'],
-               comment:  v['comment'],
-             }
+      data = {
+        group:    v['group'],
+        host:     v['host'],
+        protocol: v['protocol'],
+        user:     v['user'],
+        port:     v['port'],
+        comment:  v['comment']
+      }
 
       item = MPW::Item.new(data)
 
diff --git a/test/test_translate.rb b/test/test_translate.rb
index 6334a78..d4bb002 100644
--- a/test/test_translate.rb
+++ b/test/test_translate.rb
@@ -11,7 +11,7 @@ class TestTranslate < Test::Unit::TestCase
       lang      = File.basename(yaml, '.yml')
       translate = YAML.load_file(yaml)
 
-      `grep -r -o "I18n.t('.*)" bin/ lib/ | cut -d"'" -f2`.each_line do |line|
+      %x(grep -r -o "I18n.t('.*)" bin/ lib/ | cut -d"'" -f2).each_line do |line|
         begin
           t = translate[lang]
           line.strip.split('.').each do |v|