diff --git a/test/openssl/test_digest.rb b/test/openssl/test_digest.rb
index 988330e40..5b4eb3c74 100644
--- a/test/openssl/test_digest.rb
+++ b/test/openssl/test_digest.rb
@@ -88,7 +88,6 @@ def test_sha2
   end
 
   def test_sha512_truncate
-    pend "SHA512_224 is not implemented" unless digest_available?('sha512-224')
     sha512_224_a = "d5cdb9ccc769a5121d4175f2bfdd13d6310e0d3d361ea75d82108327"
     sha512_256_a = "455e518824bc0601f9fb858ff5c37d417d67c2f8e0df2babe4808858aea830f8"
 
@@ -100,15 +99,14 @@ def test_sha512_truncate
   end
 
   def test_sha3
-    pend "SHA3 is not implemented" unless digest_available?('sha3-224')
     s224 = '6b4e03423667dbb73b6e15454f0eb1abd4597f9a1b078e3f5b5a6bc7'
     s256 = 'a7ffc6f8bf1ed76651c14756a061d662f580ff4de43b49fa82d80a4b80f8434a'
     s384 = '0c63a75b845e4f7d01107d852e4c2485c51a50aaaa94fc61995e71bbee983a2ac3713831264adb47fb6bd1e058d5f004'
     s512 = 'a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a615b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26'
-    assert_equal(OpenSSL::Digest.hexdigest('SHA3-224', ""), s224)
-    assert_equal(OpenSSL::Digest.hexdigest('SHA3-256', ""), s256)
-    assert_equal(OpenSSL::Digest.hexdigest('SHA3-384', ""), s384)
-    assert_equal(OpenSSL::Digest.hexdigest('SHA3-512', ""), s512)
+    assert_equal(s224, OpenSSL::Digest.hexdigest('SHA3-224', ""))
+    assert_equal(s256, OpenSSL::Digest.hexdigest('SHA3-256', ""))
+    assert_equal(s384, OpenSSL::Digest.hexdigest('SHA3-384', ""))
+    assert_equal(s512, OpenSSL::Digest.hexdigest('SHA3-512', ""))
   end
 
   def test_digest_by_oid_and_name_sha2
@@ -145,11 +143,6 @@ def check_digest(oid)
     d = OpenSSL::Digest.new(oid.oid)
     assert_not_nil(d)
   end
-
-  def digest_available?(name)
-    @digests ||= OpenSSL::Digest.digests
-    @digests.include?(name)
-  end
 end
 
 end