1 files changed, 10 insertions, 0 deletions
diff --git a/test/rubygems/test_gem_request_set_lockfile.rb b/test/rubygems/test_gem_request_set_lockfile.rb
index 96cc12e164..6b6c727459 100644
--- a/test/rubygems/test_gem_request_set_lockfile.rb
+++ b/test/rubygems/test_gem_request_set_lockfile.rb
@@ -643,6 +643,16 @@ DEPENDENCIES
     assert_equal [:EOF], @lockfile.peek
   end
 
+  def test_relative_path_from
+    path = @lockfile.relative_path_from '/foo', '/foo/bar'
+
+    assert_equal '/foo', path
+
+    path = @lockfile.relative_path_from '/foo', '/foo'
+
+    assert_equal '.', path
+  end
+
   def test_skip
     tokens = [[:token]]