SPIRootInvokeHook implements RootInvokeHook { @Override public void start() { for (RootInvokeHook each : rootInvokeHooks) { each.start(); } }  @Override void start(); @Override void finish(final int connectionCount);  }
@Test public void assertStart() { spiRootInvokeHook.start(); assertTrue(RootInvokeHookFixture.containsAction("start")); }