public virtual void TestCreatedFileIsImmediatelyVisible()
{
Describe("verify that a newly created file exists as soon as open returns");
Path path = Path("testCreatedFileIsImmediatelyVisible");
FSDataOutputStream @out = null;
try
{
@out = GetFileSystem().Create(path, false, 4096, (short)1, 1024);
if (!GetFileSystem().Exists(path))
{
if (IsSupported(IsBlobstore))
{
// object store: downgrade to a skip so that the failure is visible
// in test results
ContractTestUtils.Skip("Filesystem is an object store and newly created files are not immediately visible"
);
}
AssertPathExists("expected path to be visible before anything written", path);
}
}
finally
{
IOUtils.CloseStream(@out);
}
}
/// <summary>Skip a test if a feature is unsupported in this FS</summary>
/// <param name="feature">feature to look for</param>
/// <exception cref="System.IO.IOException">IO problem</exception>
protected internal virtual void SkipIfUnsupported(string feature)
{
if (!IsSupported(feature))
{
ContractTestUtils.Skip("Skipping as unsupported feature: " + feature);
}
}
public virtual void TestOverwriteNonEmptyDirectory()
{
Describe("verify trying to create a file over a non-empty dir fails");
Path path = Path("testOverwriteNonEmptyDirectory");
Mkdirs(path);
try
{
AssertIsDirectory(path);
}
catch (Exception failure)
{
if (IsSupported(IsBlobstore))
{
// file/directory hack surfaces here
throw Extensions.InitCause(new AssumptionViolatedException(failure.ToString
()), failure);
}
// else: rethrow
throw;
}
Path child = new Path(path, "child");
ContractTestUtils.WriteTextFile(GetFileSystem(), child, "child file", true);
byte[] data = ContractTestUtils.Dataset(256, 'a', 'z');
try
{
ContractTestUtils.WriteDataset(GetFileSystem(), path, data, data.Length, 1024, true
);
FileStatus status = GetFileSystem().GetFileStatus(path);
bool isDir = status.IsDirectory();
if (!isDir && IsSupported(IsBlobstore))
{
// object store: downgrade to a skip so that the failure is visible
// in test results
ContractTestUtils.Skip("Object store allows a file to overwrite a directory");
}
NUnit.Framework.Assert.Fail("write of file over dir succeeded");
}
catch (FileAlreadyExistsException expected)
{
//expected
HandleExpectedException(expected);
}
catch (FileNotFoundException e)
{
HandleRelaxedException("overwriting a dir with a file ", "FileAlreadyExistsException"
, e);
}
catch (IOException e)
{
HandleRelaxedException("overwriting a dir with a file ", "FileAlreadyExistsException"
, e);
}
AssertIsDirectory(path);
AssertIsFile(child);
}
