jacoco 显示未覆盖的行，尽管在 运行 代码时执行这些行

Question

我有以下几行代码，Jacoco 指出它们不是 "executed"。

但是当我调试测试用例时它确实执行了那些行。下面是我写的测试用例。

@PrepareForTest({MessagingAdapterFactory.class, MessagingConfigReaderFactory.class,UpdaterServiceExecutor.class,Files.class})
    @Test
    public void should_shutDown_the_scheduledExecutor_and_close_the_messagingAdapter() throws Exception {
        PowerMockito.mockStatic(Files.class);
        PowerMockito.when(Files.exists(any())).thenReturn(true);

        PowerMockito.mockStatic(MessagingAdapterFactory.class);
        PowerMockito.when(MessagingAdapterFactory.getMessagingAdapter("edgeNode")).thenReturn(messagingAdapterMock);
        PowerMockito.mockStatic(MessagingConfigReaderFactory.class);
        PowerMockito.when(MessagingConfigReaderFactory.getConfigurationReader()).thenReturn(readerMock);

        ScheduledExecutorService scheduledExecutorServiceMock = Mockito.mock(ScheduledExecutorService.class);

        PowerMockito.mockStatic(Executors.class);
        PowerMockito.when(Executors.newSingleThreadScheduledExecutor()).thenReturn(scheduledExecutorServiceMock);

        when(readerMock.getConfigParams()).thenReturn("somePath,somePath,somePath");
        when(decompressUtilMock.decompressZip(Matchers.anyString(),Matchers.anyString())).thenReturn(true);
        when(checkSumUtilMock.check(anyString(), anyString())).thenReturn(true);
        when(commandExecutorMock.executeCommand("somePath verify /pa somePathKubeUpdates/KubePlatformSetup.exe")).thenReturn(false);
        updaterServiceExecutor.execute();
        Thread.sleep(10000);
        updaterServiceExecutor.close();

        verify(scheduledExecutorServiceMock,timeout(10000).times(1)).shutdownNow();
        verify(messagingAdapterMock,timeout(10000).times(1)).close();
    }

    @PrepareForTest({MessagingAdapterFactory.class, MessagingConfigReaderFactory.class,UpdaterServiceExecutor.class,Files.class})
    @Test
    public void should_not_throw_ServiceSDKException_when_occurred_while_closing_the_messagingAdapter() throws Exception {
        PowerMockito.mockStatic(Files.class);
        PowerMockito.when(Files.exists(any())).thenReturn(true);

        PowerMockito.mockStatic(MessagingAdapterFactory.class);
        PowerMockito.when(MessagingAdapterFactory.getMessagingAdapter("edgeNode")).thenReturn(messagingAdapterMock);
        PowerMockito.mockStatic(MessagingConfigReaderFactory.class);
        PowerMockito.when(MessagingConfigReaderFactory.getConfigurationReader()).thenReturn(readerMock);

        ScheduledExecutorService scheduledExecutorServiceMock = Mockito.mock(ScheduledExecutorService.class);

        PowerMockito.mockStatic(Executors.class);
        PowerMockito.when(Executors.newSingleThreadScheduledExecutor()).thenReturn(scheduledExecutorServiceMock);

        when(readerMock.getConfigParams()).thenReturn("somePath,somePath,somePath");
        when(decompressUtilMock.decompressZip(Matchers.anyString(),Matchers.anyString())).thenReturn(true);
        when(checkSumUtilMock.check(anyString(), anyString())).thenReturn(true);
        when(commandExecutorMock.executeCommand("somePath verify /pa somePathKubeUpdates/KubePlatformSetup.exe")).thenReturn(false);
        doThrow(new ServiceSDKException()).when(messagingAdapterMock).close();

        updaterServiceExecutor.execute();
        Thread.sleep(10000);
        updaterServiceExecutor.close();

        verify(scheduledExecutorServiceMock,timeout(10000).times(1)).shutdownNow();
        verify(messagingAdapterMock,timeout(10000).times(1)).close();
    }

这里有什么问题？为什么 Jacoco 显示为未执行的行？请指教

Answer 1

Jacoco 和 PowerMockito 不能一起工作。

Jacoco 检测字节码，收集覆盖率数据，然后根据 class 的某些标识符将覆盖率信息与源代码相关联。

PowerMockito 也检测字节码，这会导致不同的 class 标识符，因此 Jacoco 计算的覆盖率无法与源代码相关联，因为标识符信息不匹配。

这是一个known issue。

Answer 2

Gerald 的回答就是原因。只有当您将正在测试的 class 放在@PrepareForTest 中时，才会发生这种情况。所以我从某些方法中删除了它，现在它工作正常。使用 PowerMockito 本身不会导致任何问题。仅当您在@PrepareForTest 中使用 class 名称时才会出现问题。找到仅使用静态方法名称 class 而不是您为其编写测试用例的 class 的名称来管理它的方法。