* test/coverage/test_coverage.rb: Added test-case for Coverage.restart.

[Misc #11732][ruby-dev:49379]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52754 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Thu Nov 26 09:50:02 2015  yui-knk  <spiketeika@gmail.com>
+
+	* test/coverage/test_coverage.rb: Added test-case for Coverage.restart.
+	  [Misc #11732][ruby-dev:49379]
+
 Thu Nov 26 09:46:36 2015  yui-knk  <spiketeika@gmail.com>
 
 	* test/coverage/test_coverage.rb: Added test-case for Coverage.peek_result

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