CGroupsCpuResourceHandlerImpl implements CpuResourceHandler { @Override public List<PrivilegedOperation> reacquireContainer(ContainerId containerId) throws ResourceHandlerException { return null; } CGroupsCpuResourceHandlerImpl(CGroupsHandler cGroupsHandler); @Override List<PrivilegedOperation> bootstrap(Configuration conf); @InterfaceAudience.Private static boolean cpuLimitsExist(String path); @VisibleForTesting @InterfaceAudience.Private static int[] getOverallLimits(float yarnProcessors); @Override List<PrivilegedOperation> preStart(Container container); @Override List<PrivilegedOperation> reacquireContainer(ContainerId containerId); @Override List<PrivilegedOperation> updateContainer(Container container); @Override List<PrivilegedOperation> postComplete(ContainerId containerId); @Override List<PrivilegedOperation> teardown(); @Override String toString();  }
@Test public void testReacquireContainer() throws Exception { ContainerId containerIdMock = mock(ContainerId.class); Assert.assertNull( cGroupsCpuResourceHandler.reacquireContainer(containerIdMock)); }