Commit 5ef8acd

@@ -35,53 +35,59 @@ RSpec.describe ::Xml::Kit::Crypto::SymmetricCipher do
     ['aes192-cbc', 192],
     ['aes256-cbc', 256],
   ].each do |(algorithm, bit_length)|
-    describe "decrypting #{algorithm} encrypted with the OpenSSL CLI" do
-      subject { described_class.new(xml_algorithm, key, 0) }
-
+    describe algorithm do
       let(:xml_algorithm) { "#{::Xml::Kit::Namespaces::XMLENC}#{algorithm}" }
       let(:openssl_algorithm) { Xml::Kit::Crypto::SymmetricCipher::ALGORITHMS[xml_algorithm] }
-
-      let(:encrypted_file) { Tempfile.new(algorithm).path }
-      let(:original_file) { Tempfile.new("#{algorithm}-original").path }
+      let(:bytes_length) { bit_length / 8 }
       let(:key) { SecureRandom.random_bytes(bytes_length) }
       let(:iv) { SecureRandom.random_bytes(bytes_length) }
-      let(:bytes_length) { bit_length / 8 }
-      let(:secret) { SecureRandom.hex }
-      let(:data) { "#{iv}#{secret}".strip }
 
-      before do
-        IO.write(original_file, data, encoding: Encoding::ASCII_8BIT)
-        execute_shell([
-          "openssl enc -#{openssl_algorithm} -p -A -nosalt",
-          "-in #{original_file}",
-          "-out #{encrypted_file}",
-          "-K #{key.unpack('H*')[0].upcase}",
-          "-iv #{iv.unpack('H*')[0].upcase}"
-        ].join(' '))
-      end
+      describe "decrypting #{algorithm} encrypted with the OpenSSL CLI" do
+        subject { described_class.new(xml_algorithm, key, 0) }
+
+        let(:encrypted_file) { Tempfile.new(algorithm).path }
+        let(:original_file) { Tempfile.new("#{algorithm}-original").path }
+        let(:secret) { SecureRandom.hex }
+        let(:data) { "#{iv}#{secret}".strip }
 
-      specify do
-        cipher_text = IO.read(encrypted_file, encoding: Encoding::ASCII_8BIT)
-        expect(subject.decrypt(cipher_text)).to include(secret)
+        before do
+          IO.write(original_file, data, encoding: Encoding::ASCII_8BIT)
+          execute_shell([
+            "openssl enc -#{openssl_algorithm} -p -A -nosalt",
+            "-in #{original_file}",
+            "-out #{encrypted_file}",
+            "-K #{key.unpack('H*')[0].upcase}",
+            "-iv #{iv.unpack('H*')[0].upcase}"
+          ].join(' '))
+        end
+
+        specify do
+          cipher_text = IO.read(encrypted_file, encoding: Encoding::ASCII_8BIT)
+          expect(subject.decrypt(cipher_text)).to include(secret)
+        end
       end
-    end
-  end
 
-  describe 'when decrypting with the OpenSSL CLI' do
-    subject { described_class.new("#{::Xml::Kit::Namespaces::XMLENC}aes128-cbc", key) }
+      describe "when decrypting #{algorithm} with the OpenSSL CLI" do
+        subject { described_class.new(xml_algorithm, key) }
 
-    let(:encrypted_file) { Tempfile.new('aes-128-cbc').path }
-    let(:original_file) { __FILE__ }
-    let(:decrypted_file) { Tempfile.new('aes-128-cbc-decrypted').path }
-    let(:key) { SecureRandom.hex(8) }
-    let(:iv) { SecureRandom.hex(8) }
-    let(:original_content) { IO.read(original_file) }
+        let(:encrypted_file) { Tempfile.new(algorithm).path }
+        let(:original_file) { __FILE__ }
+        let(:decrypted_file) { Tempfile.new("#{algorithm}-decrypted").path }
+        let(:original_content) { IO.read(original_file) }
 
-    before do
-      IO.write(encrypted_file, subject.encrypt(IO.read(original_file)))
-      execute_shell("openssl enc -aes-128-cbc -p -d -nosalt -in #{encrypted_file} -out #{decrypted_file} -K #{key.unpack('H*')[0]} -iv #{iv.unpack('H*')[0]}")
-    end
+        before do
+          IO.write(encrypted_file, subject.encrypt(IO.read(original_file)))
+          execute_shell([
+            "openssl enc -#{openssl_algorithm} -p -d -nosalt",
+            "-in #{encrypted_file}",
+            "-out #{decrypted_file}",
+            "-K #{key.unpack('H*')[0].upcase}",
+            "-iv #{iv.unpack('H*')[0].upcase}"
+          ].join(' '))
+        end
 
-    specify { expect(IO.read(decrypted_file)).to end_with(original_content) }
+        specify { expect(IO.read(decrypted_file)).to end_with(original_content) }
+      end
+    end
   end
 end