@Test public void testAddContainers() { Integer containersToAdd = 3; List<String> expectedCommand = asList("aurora job add --wait-until RUNNING %s/0 %s", JOB_SPEC, containersToAdd.toString()); Mockito.doReturn(true).when(controller).runProcess(Matchers.anyListOf(String.class)); controller.addContainers(containersToAdd); Mockito.verify(controller).runProcess(Mockito.eq(expectedCommand)); }