Related refactoring to updated of ThrottleList to use new Scheduler.

test/rpc/test_command.h

@@ -0,0 +1,14 @@
+#include "test/helpers/test_fixture.h"
+
+class TestCommand : public test_fixture {
+  CPPUNIT_TEST_SUITE(TestCommand);
+
+  CPPUNIT_TEST(test_stack);
+  CPPUNIT_TEST(test_stack_double);
+
+  CPPUNIT_TEST_SUITE_END();
+
+public:
+  void test_stack();
+  void test_stack_double();
+};