1 files changed, 13 insertions, 0 deletions
diff --git a/Library/Homebrew/test/test_pathname.rb b/Library/Homebrew/test/test_pathname.rb
index a20f36c75..06e676d76 100644
--- a/Library/Homebrew/test/test_pathname.rb
+++ b/Library/Homebrew/test/test_pathname.rb
@@ -1,6 +1,7 @@
 require 'testing_env'
 require 'tmpdir'
 require 'extend/pathname'
+require 'install_renamed'
 
 class PathnameExtensionTests < Homebrew::TestCase
   include FileUtils
@@ -197,4 +198,16 @@ class PathnameExtensionTests < Homebrew::TestCase
     @dir.install(@file)
     assert_predicate @dir, :directory?
   end
+
+  def test_install_renamed
+    @dir.extend(InstallRenamed)
+
+    @file.write "a"
+    @dir.install @file
+    @file.write "b"
+    @dir.install @file
+
+    assert_equal "a", File.read(@dir+@file.basename)
+    assert_equal "b", File.read(@dir+"#{@file.basename}.default")
+  end
 end