java - 从JUnit使用Blobstore

我正在尝试测试一些使用Blobstore API的代码，但是我并没有真正期望将某些文件放入Blobstore中。以下内容不起作用:

private BlobKey createBlob(String path) throws Exception {
    FileService fileService = FileServiceFactory.getFileService();
    AppEngineFile file = fileService.createNewBlobFile("foobar");
    FileWriteChannel writeChannel = fileService.openWriteChannel(file, true);
    OutputStream output = Channels.newOutputStream(writeChannel);

    // copy files, guava-style
    InputStream input = new FileInputStream(path);
    assertNotNull(input);
    ByteStreams.copy(input, output);
    input.close();

    // just in case...
    output.flush();
    output.close();
    writeChannel.close();

    // U NO WORK!!!
    BlobKey blobKey = fileService.getBlobKey(file);
    assertNotNull(blobKey);
    return blobKey;
}

我的配置:

new LocalServiceTestHelper(
    new LocalBlobstoreServiceTestConfig()
        //.setNoStorage(true)
        .setBackingStoreLocation("war/WEB-INF/appengine-generated"),
    new LocalFileServiceTestConfig()
).setUp();

有任何想法吗？

最佳答案

以下测试成功运行

public class TestBlobstore {
  private static final LocalServiceTestHelper helper =
    new LocalServiceTestHelper(new LocalDatastoreServiceTestConfig(),
                               new LocalBlobstoreServiceTestConfig()
                              );

  public TestBlobstore() {
  }

  @Before
  public void setUp() {
    helper.setUp();
  }

  @Test
  public void testBlobstore() throws Exception {
    System.out.println(createBlob("test.txt"));
  }

  private BlobKey createBlob(String path) throws Exception {
    FileService fileService = FileServiceFactory.getFileService();
    AppEngineFile file = fileService.createNewBlobFile("foobar");
    FileWriteChannel writeChannel = fileService.openWriteChannel(file, true);
    OutputStream output = Channels.newOutputStream(writeChannel);

    // copy files, guava-style
    InputStream input = new FileInputStream(path);
    assertNotNull(input);
    ByteStreams.copy(input, output);
    input.close();

    // just in case...
    output.flush();
    output.close();
    writeChannel.closeFinally();

    // U NO WORK!!!
    BlobKey blobKey = fileService.getBlobKey(file);
    assertNotNull(blobKey);
    return blobKey;
  }
}

两种修改:

用户LocalBlobstoreServiceTestConfig而不是LocalFileServiceTestConfig

writeChannel.closeFinally();而不是writeChannel.close()

希望能有所帮助。