### Question:
BootstrapService extends AbstractIdleService { public BootstrapResult bootstrap() throws InterruptedException { return bootstrap(x -> false); } @Inject  BootstrapService(BootstrapConfigProvider bootstrapConfigProvider, BootstrapStore bootstrapStore,
                   Map<BootstrapStep.Type, BootstrapStepExecutor> bootstrapStepExecutors,
                   SystemAppManagementService systemAppManagementService); boolean isBootstrapped(); BootstrapResult bootstrap(); BootstrapResult bootstrap(Predicate<BootstrapStep> shouldSkip); void reload();  }### Answer:
@Test public void testRunCondition() throws Exception { BootstrapResult result = bootstrapService.bootstrap(step -> step.getRunCondition() == BootstrapStep.RunCondition.ONCE); List<BootstrapStepResult> stepResults = new ArrayList<>(3); stepResults.add(new BootstrapStepResult(STEP1.getLabel(), BootstrapStepResult.Status.SKIPPED)); stepResults.add(new BootstrapStepResult(STEP2.getLabel(), BootstrapStepResult.Status.SUCCEEDED)); stepResults.add(new BootstrapStepResult(STEP3.getLabel(), BootstrapStepResult.Status.SKIPPED)); Assert.assertEquals(new BootstrapResult(stepResults), result); }
@Test public void testRetries() throws Exception { EXECUTOR1.setNumRetryableFailures(3); BootstrapResult result = bootstrapService.bootstrap(); List<BootstrapStepResult> expectedStepResults = new ArrayList<>(); for (BootstrapStep step : bootstrapConfig.getSteps()) { expectedStepResults.add(new BootstrapStepResult(step.getLabel(), BootstrapStepResult.Status.SUCCEEDED)); } BootstrapResult expected = new BootstrapResult(expectedStepResults); Assert.assertEquals(expected, result); }
@Test public void testContinuesAfterFailures() throws Exception { EXECUTOR1.shouldFail(); BootstrapResult result = bootstrapService.bootstrap(); List<BootstrapStepResult> stepResults = new ArrayList<>(3); stepResults.add(new BootstrapStepResult(STEP1.getLabel(), BootstrapStepResult.Status.FAILED)); stepResults.add(new BootstrapStepResult(STEP2.getLabel(), BootstrapStepResult.Status.SUCCEEDED)); stepResults.add(new BootstrapStepResult(STEP3.getLabel(), BootstrapStepResult.Status.SUCCEEDED)); BootstrapResult expected = new BootstrapResult(stepResults); Assert.assertEquals(expected, result); }
@Test public void testNoConcurrentBootstrap() throws Exception { CountDownLatch runningLatch = new CountDownLatch(1); CountDownLatch waitingLatch = new CountDownLatch(1); EXECUTOR1.setLatches(runningLatch, waitingLatch); Thread t = new Thread(() -> { try { bootstrapService.bootstrap(); } catch (InterruptedException e) { runningLatch.countDown(); } }); t.start(); runningLatch.await(); try { bootstrapService.bootstrap(); Assert.fail("BootstrapService should not allow concurrent bootstrap operations"); } catch (IllegalStateException e) { } finally { waitingLatch.countDown(); } }