Rakefile: Manage test files by excluding test files in the test_fips task.

Manage test files by excluding test files rather than adding the target test
files in the test_fips task.

My motivations for this change are
1. We can test FIPS cases for the test files to be added in the future.
2. We can clarify the remaining failing test files that we need to fix.

Author: junaruga

Rakefile

@@ -26,25 +26,24 @@ end
 
 Rake::TestTask.new(:test_fips_internal) do |t|
   t.libs << 'test/openssl'
-  t.test_files = FileList[
-    'test/openssl/test_bn.rb',
-    'test/openssl/test_buffering.rb',
-    'test/openssl/test_config.rb',
-    'test/openssl/test_engine.rb',
-    'test/openssl/test_fips.rb',
-    'test/openssl/test_ossl.rb',
-    'test/openssl/test_pair.rb',
-    'test/openssl/test_pkey.rb',
-    'test/openssl/test_pkey_dh.rb',
-    'test/openssl/test_pkey_dsa.rb',
-    'test/openssl/test_pkey_ec.rb',
-    'test/openssl/test_pkey_rsa.rb',
-    'test/openssl/test_provider.rb',
-    'test/openssl/test_random.rb',
-    'test/openssl/test_ssl_session.rb',
-    'test/openssl/test_x509attr.rb',
-    'test/openssl/test_x509ext.rb',
-    'test/openssl/test_x509store.rb',
+  # Exclude failing test files in FIPS for this task to pass.
+  # TODO: Fix failing test files.
+  t.test_files = FileList['test/**/test_*.rb'] - FileList[
+    'test/openssl/test_asn1.rb',
+    'test/openssl/test_cipher.rb',
+    'test/openssl/test_digest.rb',
+    'test/openssl/test_hmac.rb',
+    'test/openssl/test_kdf.rb',
+    'test/openssl/test_ns_spki.rb',
+    'test/openssl/test_ocsp.rb',
+    'test/openssl/test_pkcs12.rb',
+    'test/openssl/test_pkcs7.rb',
+    'test/openssl/test_ssl.rb',
+    'test/openssl/test_ts.rb',
+    'test/openssl/test_x509cert.rb',
+    'test/openssl/test_x509crl.rb',
+    'test/openssl/test_x509name.rb',
+    'test/openssl/test_x509req.rb',
   ]
   t.warning = true
 end