2 files changed, 42 insertions, 22 deletions
diff --git a/test/rdoc/test_rdoc_markup_to_html_crossref.rb b/test/rdoc/test_rdoc_markup_to_html_crossref.rb
index dc4488195a..d5817560e2 100644
--- a/test/rdoc/test_rdoc_markup_to_html_crossref.rb
+++ b/test/rdoc/test_rdoc_markup_to_html_crossref.rb
@@ -1,12 +1,13 @@
 # frozen_string_literal: true
 require_relative 'xref_test_case'
 
-class TestRDocMarkupToHtmlCrossref < XrefTestCase
+class RDocMarkupToHtmlCrossrefTest < XrefTestCase
 
   def setup
     super
 
     @options.hyperlink_all = true
+    @options.warn_missing_rdoc_ref = true
 
     @to = RDoc::Markup::ToHtmlCrossref.new @options, 'index.html', @c1
   end
@@ -67,6 +68,16 @@ class TestRDocMarkupToHtmlCrossref < XrefTestCase
     assert_equal para("<a href=\"C1.html\"><code>C1</code></a>"), result
   end
 
+  def test_convert_RDOCLINK_rdoc_ref_not_found
+    result = nil
+    stdout, _ = capture_output do
+      result = @to.convert 'rdoc-ref:FOO'
+    end
+
+    assert_equal para("FOO"), result
+    assert_include stdout, "index.html: `rdoc-ref:FOO` can't be resolved for `FOO`"
+  end
+
   def test_convert_RDOCLINK_rdoc_ref_method
     result = @to.convert 'rdoc-ref:C1#m'
 
@@ -153,6 +164,14 @@ class TestRDocMarkupToHtmlCrossref < XrefTestCase
                  @to.gen_url('http://example', 'HTTP example')
   end
 
+  def test_gen_url_rdoc_ref_not_found
+    stdout, _ = capture_output do
+      @to.gen_url 'rdoc-ref:FOO', 'FOO'
+    end
+
+    assert_include stdout, "index.html: `rdoc-ref:FOO` can't be resolved for `FOO`"
+  end
+
   def test_handle_regexp_CROSSREF
     assert_equal "<a href=\"C2/C3.html\"><code>C2::C3</code></a>", REGEXP_HANDLING('C2::C3')
   end
diff --git a/test/rdoc/test_rdoc_options.rb b/test/rdoc/test_rdoc_options.rb
index 1fc56b2d5e..eb8477483c 100644
--- a/test/rdoc/test_rdoc_options.rb
+++ b/test/rdoc/test_rdoc_options.rb
@@ -63,27 +63,28 @@ class TestRDocOptions < RDoc::TestCase
     encoding = 'UTF-8'
 
     expected = {
-      'charset'              => 'UTF-8',
-      'encoding'             => encoding,
-      'embed_mixins'         => false,
-      'exclude'              => %w[~\z \.orig\z \.rej\z \.bak\z \.gemspec\z],
-      'hyperlink_all'        => false,
-      'line_numbers'         => false,
-      'locale_dir'           => 'locale',
-      'locale_name'          => nil,
-      'main_page'            => nil,
-      'markup'               => 'rdoc',
-      'output_decoration'    => true,
-      'page_dir'             => nil,
-      'rdoc_include'         => [],
-      'show_hash'            => false,
-      'static_path'          => [],
-      'tab_width'            => 8,
-      'template_stylesheets' => [],
-      'title'                => nil,
-      'visibility'           => :protected,
-      'webcvs'               => nil,
-      'skip_tests'           => true,
+      'charset'               => 'UTF-8',
+      'encoding'              => encoding,
+      'embed_mixins'          => false,
+      'exclude'               => %w[~\z \.orig\z \.rej\z \.bak\z \.gemspec\z],
+      'hyperlink_all'         => false,
+      'line_numbers'          => false,
+      'locale_dir'            => 'locale',
+      'locale_name'           => nil,
+      'main_page'             => nil,
+      'markup'                => 'rdoc',
+      'output_decoration'     => true,
+      'page_dir'              => nil,
+      'rdoc_include'          => [],
+      'show_hash'             => false,
+      'static_path'           => [],
+      'tab_width'             => 8,
+      'template_stylesheets'  => [],
+      'title'                 => nil,
+      'visibility'            => :protected,
+      'warn_missing_rdoc_ref' => false,
+      'webcvs'                => nil,
+      'skip_tests'            => true,
     }
 
     assert_equal expected, coder