Add test to ensure #5077

8b65e4b7 · Yukihiro "Matz" Matsumoto · 4e158320 · 8b65e4b7
Unverified Commit 8b65e4b7 authored Sep 13, 2020 by Yukihiro "Matz" Matsumoto
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mrbgems/mruby-io/test/file.rb mrbgems/mruby-io/test/file.rb +2 -0

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--- a/mrbgems/mruby-io/test/file.rb
+++ b/mrbgems/mruby-io/test/file.rb
@@ -51,6 +51,8 @@ assert('File.extname') do
  assert_equal '', File.extname('foo/.bar')
  assert_equal '', File.extname('foo.txt/bar')
  assert_equal '', File.extname('.foo')
+  assert_equal '.rb', File.extname('.a.rb')
+  assert_equal '.', File.extname('foo.')
 end

 assert('File#flock') do