1 files changed, 17 insertions, 0 deletions
diff --git a/tool/test/webrick/test_config.rb b/tool/test/webrick/test_config.rb
new file mode 100644
index 0000000000..a54a667452
--- /dev/null
+++ b/tool/test/webrick/test_config.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: false
+require "test/unit"
+require "webrick/config"
+
+class TestWEBrickConfig < Test::Unit::TestCase
+  def test_server_name_default
+    config = WEBrick::Config::General.dup
+    assert_equal(false, config.key?(:ServerName))
+    assert_equal(WEBrick::Utils.getservername, config[:ServerName])
+    assert_equal(true, config.key?(:ServerName))
+  end
+
+  def test_server_name_set_nil
+    config = WEBrick::Config::General.dup.update(ServerName: nil)
+    assert_equal(nil, config[:ServerName])
+  end
+end