1 files changed, 83 insertions, 0 deletions
diff --git a/test/openssl/test_provider.rb b/test/openssl/test_provider.rb
new file mode 100644
index 0000000000..6f85c00c98
--- /dev/null
+++ b/test/openssl/test_provider.rb
@@ -0,0 +1,83 @@
+# frozen_string_literal: true
+require_relative 'utils'
+if defined?(OpenSSL) && defined?(OpenSSL::Provider)
+
+class OpenSSL::TestProvider < OpenSSL::TestCase
+  def test_openssl_provider_name_inspect
+    with_openssl <<-'end;'
+      provider = OpenSSL::Provider.load("default")
+      assert_equal("default", provider.name)
+      assert_not_nil(provider.inspect)
+    end;
+  end
+
+  def test_openssl_provider_names
+    # We expect the following providers are loaded in the cases:
+    # * Non-FIPS: default
+    # * FIPS: fips, base
+    # Use the null provider to test the added provider.
+    # See provider(7) - OPENSSL PROVIDERS to see the list of providers, and
+    # OSSL_PROVIDER-null(7) to check the details of the null provider.
+    with_openssl <<-'end;'
+      num = OpenSSL::Provider.provider_names.size
+
+      added_provider = OpenSSL::Provider.load("null")
+      assert_equal(num + 1, OpenSSL::Provider.provider_names.size)
+      assert_includes(OpenSSL::Provider.provider_names, "null")
+
+      assert_equal(true, added_provider.unload)
+      assert_equal(num, OpenSSL::Provider.provider_names.size)
+      assert_not_includes(OpenSSL::Provider.provider_names, "null")
+    end;
+  end
+
+  def test_unloaded_openssl_provider
+    with_openssl <<-'end;'
+      default_provider = OpenSSL::Provider.load("default")
+      assert_equal(true, default_provider.unload)
+      assert_raise(OpenSSL::Provider::ProviderError) { default_provider.name }
+      assert_raise(OpenSSL::Provider::ProviderError) { default_provider.unload }
+    end;
+  end
+
+  def test_openssl_legacy_provider
+    # The legacy provider is not supported on FIPS.
+    omit_on_fips
+
+    with_openssl(<<-'end;')
+      begin
+        OpenSSL::Provider.load("legacy")
+      rescue OpenSSL::Provider::ProviderError
+        omit "Only for OpenSSL with legacy provider"
+      end
+
+      algo = "RC4"
+      data = "a" * 1000
+      key = OpenSSL::Random.random_bytes(16)
+
+      # default provider does not support RC4
+      cipher = OpenSSL::Cipher.new(algo)
+      cipher.encrypt
+      cipher.key = key
+      encrypted = cipher.update(data) + cipher.final
+
+      other_cipher = OpenSSL::Cipher.new(algo)
+      other_cipher.decrypt
+      other_cipher.key = key
+      decrypted = other_cipher.update(encrypted) + other_cipher.final
+
+      assert_equal(data, decrypted)
+    end;
+  end
+
+  private
+
+  # this is required because OpenSSL::Provider methods change global state
+  def with_openssl(code, **opts)
+    assert_separately(["-ropenssl"], <<~"end;", **opts)
+      #{code}
+    end;
+  end
+end
+
+end