使用JUnit中的Blobstore

问题描述

我试图测试一些使用Blobstore API的代码，但我并没有真正了解我如何将一些文件放入Blobstore。以下不起作用：

 私人BlobKey createBlob（字符串路径）抛出异常{
 FileService fileService = FileServiceFactory.getFileService （）; 
 AppEngineFile file = fileService.createNewBlobFile（foobar）; 
 FileWriteChannel writeChannel = fileService.openWriteChannel（file，true）; 
 OutputStream输出= Channels.newOutputStream（writeChannel）; 
 
 //复制文件，番石榴样式
 InputStream input = new FileInputStream（path）; 
 assertNotNull（input）; 
 ByteStreams.copy（输入，输出）; 
 input.close（）; 
 
 //以防万一... 
 output.flush（）; 
 output.close（）; 
 writeChannel.close（）; 
 
 //不工作!!! 
 BlobKey blobKey = fileService.getBlobKey（file）; 
 assertNotNull（blobKey）; 
返回blobKey; 
} 
  

我的配置：

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

有什么想法？

解决方案

下面的测试运行成功

  public class TestBlobstore {
 private static final LocalServiceTestHelper helper = 
新的LocalServiceTestHelper（新的LocalDatastoreServiceTestConfig（），
新的LocalBlobstoreServiceTestConfig（）
）; 
 
 public TestBlobstore（）{
} 
 
 @Before 
 public void setUp（）{
 helper.setUp（）; 
} 
 
 @Test 
 public void testBlobstore（）抛出异常{
 System.out.println（createBlob（test.txt））; 
 
 
私有BlobKey createBlob（String path）抛出异常{
 FileService fileService = FileServiceFactory.getFileService（）; 
 AppEngineFile file = fileService.createNewBlobFile（foobar）; 
 FileWriteChannel writeChannel = fileService.openWriteChannel（file，true）; 
 OutputStream输出= Channels.newOutputStream（writeChannel）; 
 
 //复制文件，番石榴样式
 InputStream input = new FileInputStream（path）; 
 assertNotNull（input）; 
 ByteStreams.copy（输入，输出）; 
 input.close（）; 
 
 //以防万一... 
 output.flush（）; 
 output.close（）; 
 writeChannel.closeFinally（）; 
 
 //不工作!!! 
 BlobKey blobKey = fileService.getBlobKey（file）; 
 assertNotNull（blobKey）; 
返回blobKey; 
 
 
 $ / code $ / pre 
 $ b $ p 两个修改：
 
 
 
 
用户LocalBlobstoreServiceTestConfig代替LocalFileServiceTestConfig 
 
 
 writeChannel.closeFinally（）;而不是writeChannel.close（）
 
 
 
 
 
希望得到这个帮助。
 
I am trying to test some code that uses the Blobstore API, but I don't really get how I am expected to get some files into the blobstore. The following is not working:
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;
}
My config:
new LocalServiceTestHelper(
    new LocalBlobstoreServiceTestConfig()
        //.setNoStorage(true)
        .setBackingStoreLocation("war/WEB-INF/appengine-generated"),
    new LocalFileServiceTestConfig()
).setUp();
Any ideas?
 解决方案 
The following test run successfully
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;
  }
}
Two modifications:
User LocalBlobstoreServiceTestConfig instead of LocalFileServiceTestConfig
writeChannel.closeFinally(); instead of writeChannel.close()
Hope this help.
                        
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