public virtual void TestWebImageViewer()
{
WebImageViewer viewer = new WebImageViewer(NetUtils.CreateSocketAddr("localhost:0"
));
try
{
viewer.InitServer(originalFsimage.GetAbsolutePath());
int port = viewer.GetPort();
// create a WebHdfsFileSystem instance
URI uri = new URI("webhdfs://localhost:" + port.ToString());
Configuration conf = new Configuration();
WebHdfsFileSystem webhdfs = (WebHdfsFileSystem)FileSystem.Get(uri, conf);
// verify the number of directories
FileStatus[] statuses = webhdfs.ListStatus(new Path("/"));
NUnit.Framework.Assert.AreEqual(NumDirs + 3, statuses.Length);
// contains empty and xattr directory
// verify the number of files in the directory
statuses = webhdfs.ListStatus(new Path("/dir0"));
NUnit.Framework.Assert.AreEqual(FilesPerDir, statuses.Length);
// compare a file
FileStatus status = webhdfs.ListStatus(new Path("/dir0/file0"))[0];
FileStatus expected = writtenFiles["/dir0/file0"];
CompareFile(expected, status);
// LISTSTATUS operation to an empty directory
statuses = webhdfs.ListStatus(new Path("/emptydir"));
NUnit.Framework.Assert.AreEqual(0, statuses.Length);
// LISTSTATUS operation to a invalid path
Uri url = new Uri("http://localhost:" + port + "/webhdfs/v1/invalid/?op=LISTSTATUS"
);
VerifyHttpResponseCode(HttpURLConnection.HttpNotFound, url);
// LISTSTATUS operation to a invalid prefix
url = new Uri("http://localhost:" + port + "/foo");
VerifyHttpResponseCode(HttpURLConnection.HttpNotFound, url);
// GETFILESTATUS operation
status = webhdfs.GetFileStatus(new Path("/dir0/file0"));
CompareFile(expected, status);
// GETFILESTATUS operation to a invalid path
url = new Uri("http://localhost:" + port + "/webhdfs/v1/invalid/?op=GETFILESTATUS"
);
VerifyHttpResponseCode(HttpURLConnection.HttpNotFound, url);
// invalid operation
url = new Uri("http://localhost:" + port + "/webhdfs/v1/?op=INVALID");
VerifyHttpResponseCode(HttpURLConnection.HttpBadRequest, url);
// invalid method
url = new Uri("http://localhost:" + port + "/webhdfs/v1/?op=LISTSTATUS");
HttpURLConnection connection = (HttpURLConnection)url.OpenConnection();
connection.SetRequestMethod("POST");
connection.Connect();
NUnit.Framework.Assert.AreEqual(HttpURLConnection.HttpBadMethod, connection.GetResponseCode
());
}
finally
{
// shutdown the viewer
viewer.Close();
}
}