@Test
public void testGetCpuStatsFromLineWithInvalidInput() {

  // line with fewer values than expected
  String line = "cpu  7     4 3 6    2";
  Assert.assertNull(this.osCpuUtil.getCpuStatsFromLine(line));
  // line with decimal values
  line = "cpu  7.1     4.2 3 6    2    2 0 0 0";
  Assert.assertNull(this.osCpuUtil.getCpuStatsFromLine(line));
}