1 files changed, 9 insertions, 0 deletions
diff --git a/test/rake/test_trace_output.rb b/test/rake/test_trace_output.rb
index 750ea1447e..f9aead989d 100644
--- a/test/rake/test_trace_output.rb
+++ b/test/rake/test_trace_output.rb
@@ -6,10 +6,12 @@ class TestTraceOutput < Rake::TestCase
 
   class PrintSpy
     attr_reader :result, :calls
+
     def initialize
       @result = ""
       @calls = 0
     end
+
     def print(string)
       @result << string
       @calls += 1
@@ -30,6 +32,13 @@ class TestTraceOutput < Rake::TestCase
     assert_equal 1, spy.calls
   end
 
+  def test_trace_handles_nil_objects
+    spy = PrintSpy.new
+    trace_on(spy, "HI\n", nil, "LO")
+    assert_equal "HI\nLO\n", spy.result
+    assert_equal 1, spy.calls
+  end
+
   def test_trace_issues_single_io_for_args_multiple_strings_and_alternate_sep
     old_sep = $\
     $\ = "\r"