1 files changed, 18 insertions, 0 deletions
diff --git a/test/coverage/test_coverage.rb b/test/coverage/test_coverage.rb
index 549793b5e1..b7a7ea7dab 100644
--- a/test/coverage/test_coverage.rb
+++ b/test/coverage/test_coverage.rb
@@ -60,12 +60,30 @@ class TestCoverage < Test::Unit::TestCase
           EOS
         end
 
+        File.open("test2.rb", "w") do |f|
+          f.puts <<-EOS
+            def coverage_test_method2
+              :ok
+              :ok
+            end
+          EOS
+        end
+
         Coverage.start
         require tmp + '/test.rb'
         assert_equal 3, Coverage.result[tmp + '/test.rb'].size
+
+        # Restart coverage but '/test.rb' is required before restart,
+        # so coverage is not recorded.
         Coverage.start
         coverage_test_method
         assert_equal 0, Coverage.result[tmp + '/test.rb'].size
+
+        # Restart coverage and '/test2.rb' is required after restart,
+        # so coverage is recorded.
+        Coverage.start
+        require tmp + '/test2.rb'
+        assert_equal 4, Coverage.result[tmp + '/test2.rb'].size
       }
     }
   ensure