[ruby/rdoc] Fold files in the page directory

https://github.com/ruby/rdoc/commit/b7b4cdab6c

1 files changed, 5 insertions, 0 deletions

diff --git a/test/rdoc/test_rdoc_generator_darkfish.rb b/test/rdoc/test_rdoc_generator_darkfish.rb
index 5ab4cffd1a..90b934dc63 100644
--- a/test/rdoc/test_rdoc_generator_darkfish.rb
+++ b/test/rdoc/test_rdoc_generator_darkfish.rb
@@ -105,6 +105,11 @@ class TestRDocGeneratorDarkfish < RDoc::TestCase
     @g.generate
     assert_file 'outer_rdoc.html'
     assert_file 'outer/inner_rdoc.html'
+    index = File.read('index.html')
+    re = %r[<summary><a href="\./outer_rdoc\.html">outer</a></summary>.*?</details>]m
+    assert_match(re, index)
+    summary = index[re]
+    assert_match %r[<a href="\./outer/inner_rdoc.html">inner</a>], summary
   end
 
   def test_generate_dry_run