test/key_test.rb in symmetric-encryption-4.0.0.beta3 vs test/key_test.rb in symmetric-encryption-4.0.0

@@ -1,9 +1,18 @@
 require_relative 'test_helper'
 
 class KeyTest < Minitest::Test
   describe SymmetricEncryption::Key do
+    before do
+      Dir.mkdir('tmp') unless Dir.exist?('tmp')
+    end
+
+    after do
+      # Cleanup generated encryption key files.
+      `rm tmp/dek_tester* 2> /dev/null`
+    end
+
     let :random_key do
       SymmetricEncryption::Key.new
     end
 
     let :stored_key do
@@ -110,10 +119,10 @@
       let :config_key do
         SymmetricEncryption::Key.from_config(config)
       end
 
       let :dek_file_name do
-        'tmp/tester_dek.encrypted_key'
+        'tmp/dek_tester_dek.encrypted_key'
       end
 
       describe 'key' do
         it 'key' do
           assert_equal stored_key, config_key.key