diff --git a/test/test_heuristics.rb b/test/test_heuristics.rb
index 2c78d87c..03b26415 100644
--- a/test/test_heuristics.rb
+++ b/test/test_heuristics.rb
@@ -122,4 +122,15 @@ class TestHeuristcs < Test::Unit::TestCase
       end
     end
   end
+
+  # Candidate languages = ["LiveScript", "LoomScript"]
+  def test_ls_livescript_by_heuristics
+    results = Heuristics.disambiguate_ls(fixture("LiveScript/hello.ls"))
+    assert_equal Language["LiveScript"], results.first
+  end
+
+  def test_ls_loomscript_by_heuristics
+    results = Heuristics.disambiguate_ls(fixture("LoomScript/HelloWorld.ls"))
+    assert_equal Language["LoomScript"], results.first
+  end
 end